diff options
176 files changed, 3343 insertions, 1282 deletions
diff --git a/Documentation/cciss.txt b/Documentation/cciss.txt index 8244c6442fa..89698e8df7d 100644 --- a/Documentation/cciss.txt +++ b/Documentation/cciss.txt @@ -21,11 +21,14 @@ This driver is known to work with the following cards: * SA E200 * SA E200i * SA E500 + * SA P700m * SA P212 * SA P410 * SA P410i * SA P411 * SA P812 + * SA P712m + * SA P711m Detecting drive failures: ------------------------- diff --git a/Documentation/email-clients.txt b/Documentation/email-clients.txt index 2ebb94d6ed8..a618efab7b1 100644 --- a/Documentation/email-clients.txt +++ b/Documentation/email-clients.txt @@ -213,4 +213,29 @@ TkRat (GUI) Works. Use "Insert file..." or external editor. +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +Gmail (Web GUI) + +If you just have to use Gmail to send patches, it CAN be made to work. It +requires a bit of external help, though. + +The first problem is that Gmail converts tabs to spaces. This will +totally break your patches. To prevent this, you have to use a different +editor. There is a firefox extension called "ViewSourceWith" +(https://addons.mozilla.org/en-US/firefox/addon/394) which allows you to +edit any text box in the editor of your choice. Configure it to launch +your favorite editor. When you want to send a patch, use this technique. +Once you have crafted your messsage + patch, save and exit the editor, +which should reload the Gmail edit box. GMAIL WILL PRESERVE THE TABS. +Hoorah. Apparently you can cut-n-paste literal tabs, but Gmail will +convert those to spaces upon sending! + +The second problem is that Gmail converts tabs to spaces on replies. If +you reply to a patch, don't expect to be able to apply it as a patch. + +The last problem is that Gmail will base64-encode any message that has a +non-ASCII character. That includes things like European names. Be aware. + +Gmail is not convenient for lkml patches, but CAN be made to work. + ### diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt index bbac4f1d905..3a5ddc96901 100644 --- a/Documentation/filesystems/vfat.txt +++ b/Documentation/filesystems/vfat.txt @@ -8,6 +8,12 @@ if you want to format from within Linux. VFAT MOUNT OPTIONS ---------------------------------------------------------------------- +uid=### -- Set the owner of all files on this filesystem. + The default is the uid of current process. + +gid=### -- Set the group of all files on this filesystem. + The default is the gid of current process. + umask=### -- The permission mask (for files and directories, see umask(1)). The default is the umask of current process. @@ -36,7 +42,7 @@ codepage=### -- Sets the codepage number for converting to shortname characters on FAT filesystem. By default, FAT_DEFAULT_CODEPAGE setting is used. -iocharset=name -- Character set to use for converting between the +iocharset=<name> -- Character set to use for converting between the encoding is used for user visible filename and 16 bit Unicode characters. Long filenames are stored on disk in Unicode format, but Unix for the most part doesn't @@ -86,6 +92,8 @@ check=s|r|n -- Case sensitivity checking setting. r: relaxed, case insensitive n: normal, default setting, currently case insensitive +nocase -- This was deprecated for vfat. Use shortname=win95 instead. + shortname=lower|win95|winnt|mixed -- Shortname display/create setting. lower: convert to lowercase for display, @@ -99,11 +107,31 @@ shortname=lower|win95|winnt|mixed tz=UTC -- Interpret timestamps as UTC rather than local time. This option disables the conversion of timestamps between local time (as used by Windows on FAT) and UTC - (which Linux uses internally). This is particuluarly + (which Linux uses internally). This is particularly useful when mounting devices (like digital cameras) that are set to UTC in order to avoid the pitfalls of local time. +showexec -- If set, the execute permission bits of the file will be + allowed only if the extension part of the name is .EXE, + .COM, or .BAT. Not set by default. + +debug -- Can be set, but unused by the current implementation. + +sys_immutable -- If set, ATTR_SYS attribute on FAT is handled as + IMMUTABLE flag on Linux. Not set by default. + +flush -- If set, the filesystem will try to flush to disk more + early than normal. Not set by default. + +rodir -- FAT has the ATTR_RO (read-only) attribute. But on Windows, + the ATTR_RO of the directory will be just ignored actually, + and is used by only applications as flag. E.g. it's setted + for the customized folder. + + If you want to use ATTR_RO as read-only flag even for + the directory, set this option. + <bool>: 0,1,yes,no,true,false TODO diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 1bbcaa8982b..c86c0745971 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -995,13 +995,15 @@ and is between 256 and 4096 characters. It is defined in the file Format: <cpu number>,...,<cpu number> or - <cpu number>-<cpu number> (must be a positive range in ascending order) + <cpu number>-<cpu number> + (must be a positive range in ascending order) or a mixture <cpu number>,...,<cpu number>-<cpu number> + This option can be used to specify one or more CPUs to isolate from the general SMP balancing and scheduling - algorithms. The only way to move a process onto or off - an "isolated" CPU is via the CPU affinity syscalls. + algorithms. You can move a process onto or off an + "isolated" CPU via the CPU affinity syscalls or cpuset. <cpu number> begins at 0 and the maximum value is "number of CPUs in system - 1". @@ -1470,8 +1472,6 @@ and is between 256 and 4096 characters. It is defined in the file Valid arguments: on, off Default: on - noirqbalance [X86-32,SMP,KNL] Disable kernel irq balancing - noirqdebug [X86-32] Disables the code which attempts to detect and disable unhandled interrupt sources. diff --git a/MAINTAINERS b/MAINTAINERS index d643e862b8e..7e6a17e1de0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -721,7 +721,7 @@ W: http://sourceforge.net/projects/acpi4asus W: http://xf.iksaif.net/acpi4asus S: Maintained -ASYNCHRONOUS TRANSFERS/TRANSFORMS API +ASYNCHRONOUS TRANSFERS/TRANSFORMS (IOAT) API P: Dan Williams M: dan.j.williams@intel.com P: Maciej Sosnowski diff --git a/arch/Kconfig b/arch/Kconfig index e6ab550bceb..8977d99987c 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -21,7 +21,7 @@ config OPROFILE_IBS Instruction-Based Sampling (IBS) is a new profiling technique that provides rich, precise program performance information. IBS is introduced by AMD Family10h processors - (AMD Opteron Quad-Core processor “Barcelona”) to overcome + (AMD Opteron Quad-Core processor "Barcelona") to overcome the limitations of conventional performance counter sampling. diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h index 809ff9ab853..77764301844 100644 --- a/arch/arm/include/asm/memory.h +++ b/arch/arm/include/asm/memory.h @@ -44,10 +44,10 @@ * The module space lives between the addresses given by TASK_SIZE * and PAGE_OFFSET - it must be within 32MB of the kernel text. */ -#define MODULE_END (PAGE_OFFSET) -#define MODULE_START (MODULE_END - 16*1048576) +#define MODULES_END (PAGE_OFFSET) +#define MODULES_VADDR (MODULES_END - 16*1048576) -#if TASK_SIZE > MODULE_START +#if TASK_SIZE > MODULES_VADDR #error Top of user space clashes with start of module space #endif @@ -56,7 +56,7 @@ * Since we use sections to map it, this macro replaces the physical address * with its virtual address while keeping offset from the base section. */ -#define XIP_VIRT_ADDR(physaddr) (MODULE_START + ((physaddr) & 0x000fffff)) +#define XIP_VIRT_ADDR(physaddr) (MODULES_VADDR + ((physaddr) & 0x000fffff)) /* * Allow 16MB-aligned ioremap pages @@ -94,8 +94,8 @@ /* * The module can be at any place in ram in nommu mode. */ -#define MODULE_END (END_MEM) -#define MODULE_START (PHYS_OFFSET) +#define MODULES_END (END_MEM) +#define MODULES_VADDR (PHYS_OFFSET) #endif /* !CONFIG_MMU */ diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index 7aad78420f1..568020b34e3 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -42,6 +42,10 @@ #define CR_U (1 << 22) /* Unaligned access operation */ #define CR_XP (1 << 23) /* Extended page tables */ #define CR_VE (1 << 24) /* Vectored interrupts */ +#define CR_EE (1 << 25) /* Exception (Big) Endian */ +#define CR_TRE (1 << 28) /* TEX remap enable */ +#define CR_AFE (1 << 29) /* Access flag enable */ +#define CR_TE (1 << 30) /* Thumb exception enable */ /* * This is used to ensure the compiler did actually allocate the register we diff --git a/arch/arm/kernel/elf.c b/arch/arm/kernel/elf.c index 513f332f040..84849098c8e 100644 --- a/arch/arm/kernel/elf.c +++ b/arch/arm/kernel/elf.c @@ -21,12 +21,16 @@ int elf_check_arch(const struct elf32_hdr *x) eflags = x->e_flags; if ((eflags & EF_ARM_EABI_MASK) == EF_ARM_EABI_UNKNOWN) { + unsigned int flt_fmt; + /* APCS26 is only allowed if the CPU supports it */ if ((eflags & EF_ARM_APCS_26) && !(elf_hwcap & HWCAP_26BIT)) return 0; + flt_fmt = eflags & (EF_ARM_VFP_FLOAT | EF_ARM_SOFT_FLOAT); + /* VFP requires the supporting code */ - if ((eflags & EF_ARM_VFP_FLOAT) && !(elf_hwcap & HWCAP_VFP)) + if (flt_fmt == EF_ARM_VFP_FLOAT && !(elf_hwcap & HWCAP_VFP)) return 0; } return 1; diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c index 9203ba7d58e..b8d965dcd6f 100644 --- a/arch/arm/kernel/module.c +++ b/arch/arm/kernel/module.c @@ -26,12 +26,12 @@ /* * The XIP kernel text is mapped in the module area for modules and * some other stuff to work without any indirect relocations. - * MODULE_START is redefined here and not in asm/memory.h to avoid + * MODULES_VADDR is redefined here and not in asm/memory.h to avoid * recompiling the whole kernel when CONFIG_XIP_KERNEL is turned on/off. */ extern void _etext; -#undef MODULE_START -#define MODULE_START (((unsigned long)&_etext + ~PGDIR_MASK) & PGDIR_MASK) +#undef MODULES_VADDR +#define MODULES_VADDR (((unsigned long)&_etext + ~PGDIR_MASK) & PGDIR_MASK) #endif #ifdef CONFIG_MMU @@ -43,7 +43,7 @@ void *module_alloc(unsigned long size) if (!size) return NULL; - area = __get_vm_area(size, VM_ALLOC, MODULE_START, MODULE_END); + area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END); if (!area) return NULL; diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c index 763bdbeaf68..2249049c1d5 100644 --- a/arch/arm/mach-omap2/gpmc.c +++ b/arch/arm/mach-omap2/gpmc.c @@ -429,18 +429,16 @@ void __init gpmc_init(void) gpmc_l3_clk = clk_get(NULL, ck); if (IS_ERR(gpmc_l3_clk)) { printk(KERN_ERR "Could not get GPMC clock %s\n", ck); - return -ENODEV; + BUG(); } gpmc_base = ioremap(l, SZ_4K); if (!gpmc_base) { clk_put(gpmc_l3_clk); printk(KERN_ERR "Could not get GPMC register memory\n"); - return -ENOMEM; + BUG(); } - BUG_ON(IS_ERR(gpmc_l3_clk)); - l = gpmc_read_reg(GPMC_REVISION); printk(KERN_INFO "GPMC revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f); /* Set smart idle mode and automatic L3 clock gating */ diff --git a/arch/arm/mm/cache-xsc3l2.c b/arch/arm/mm/cache-xsc3l2.c index 10b1bae1a25..464de893a98 100644 --- a/arch/arm/mm/cache-xsc3l2.c +++ b/arch/arm/mm/cache-xsc3l2.c @@ -98,7 +98,7 @@ static void xsc3_l2_inv_range(unsigned long start, unsigned long end) /* * Clean and invalidate partial last cache line. */ - if (end & (CACHE_LINE_SIZE - 1)) { + if (start < end && (end & (CACHE_LINE_SIZE - 1))) { xsc3_l2_clean_pa(end & ~(CACHE_LINE_SIZE - 1)); xsc3_l2_inv_pa(end & ~(CACHE_LINE_SIZE - 1)); end &= ~(CACHE_LINE_SIZE - 1); @@ -107,7 +107,7 @@ static void xsc3_l2_inv_range(unsigned long start, unsigned long end) /* * Invalidate all full cache lines between 'start' and 'end'. */ - while (start != end) { + while (start < end) { xsc3_l2_inv_pa(start); start += CACHE_LINE_SIZE; } diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index 8ba75406455..e63db11f16a 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -180,20 +180,20 @@ void adjust_cr(unsigned long mask, unsigned long set) #endif #define PROT_PTE_DEVICE L_PTE_PRESENT|L_PTE_YOUNG|L_PTE_DIRTY|L_PTE_WRITE -#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_XN|PMD_SECT_AP_WRITE +#define PROT_SECT_DEVICE PMD_TYPE_SECT|PMD_SECT_AP_WRITE static struct mem_type mem_types[] = { [MT_DEVICE] = { /* Strongly ordered / ARMv6 shared device */ .prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_SHARED | L_PTE_SHARED, .prot_l1 = PMD_TYPE_TABLE, - .prot_sect = PROT_SECT_DEVICE | PMD_SECT_UNCACHED, + .prot_sect = PROT_SECT_DEVICE | PMD_SECT_S, .domain = DOMAIN_IO, }, [MT_DEVICE_NONSHARED] = { /* ARMv6 non-shared device */ .prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_NONSHARED, .prot_l1 = PMD_TYPE_TABLE, - .prot_sect = PROT_SECT_DEVICE | PMD_SECT_TEX(2), + .prot_sect = PROT_SECT_DEVICE, .domain = DOMAIN_IO, }, [MT_DEVICE_CACHED] = { /* ioremap_cached */ @@ -205,7 +205,7 @@ static struct mem_type mem_types[] = { [MT_DEVICE_WC] = { /* ioremap_wc */ .prot_pte = PROT_PTE_DEVICE | L_PTE_MT_DEV_WC, .prot_l1 = PMD_TYPE_TABLE, - .prot_sect = PROT_SECT_DEVICE | PMD_SECT_BUFFERABLE, + .prot_sect = PROT_SECT_DEVICE, .domain = DOMAIN_IO, }, [MT_CACHECLEAN] = { @@ -273,22 +273,23 @@ static void __init build_mem_type_table(void) #endif /* - * On non-Xscale3 ARMv5-and-older systems, use CB=01 - * (Uncached/Buffered) for ioremap_wc() mappings. On XScale3 - * and ARMv6+, use TEXCB=00100 mappings (Inner/Outer Uncacheable - * in xsc3 parlance, Uncached Normal in ARMv6 parlance). + * Strip out features not present on earlier architectures. + * Pre-ARMv5 CPUs don't have TEX bits. Pre-ARMv6 CPUs or those + * without extended page tables don't have the 'Shared' bit. */ - if (cpu_is_xsc3() || cpu_arch >= CPU_ARCH_ARMv6) { - mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1); - mem_types[MT_DEVICE_WC].prot_sect &= ~PMD_SECT_BUFFERABLE; - } + if (cpu_arch < CPU_ARCH_ARMv5) + for (i = 0; i < ARRAY_SIZE(mem_types); i++) + mem_types[i].prot_sect &= ~PMD_SECT_TEX(7); + if ((cpu_arch < CPU_ARCH_ARMv6 || !(cr & CR_XP)) && !cpu_is_xsc3()) + for (i = 0; i < ARRAY_SIZE(mem_types); i++) + mem_types[i].prot_sect &= ~PMD_SECT_S; /* - * ARMv5 and lower, bit 4 must be set for page tables. - * (was: cache "update-able on write" bit on ARM610) - * However, Xscale cores require this bit to be cleared. + * ARMv5 and lower, bit 4 must be set for page tables (was: cache + * "update-able on write" bit on ARM610). However, Xscale and + * Xscale3 require this bit to be cleared. */ - if (cpu_is_xscale()) { + if (cpu_is_xscale() || cpu_is_xsc3()) { for (i = 0; i < ARRAY_SIZE(mem_types); i++) { mem_types[i].prot_sect &= ~PMD_BIT4; mem_types[i].prot_l1 &= ~PMD_BIT4; @@ -302,6 +303,64 @@ static void __init build_mem_type_table(void) } } + /* + * Mark the device areas according to the CPU/architecture. + */ + if (cpu_is_xsc3() || (cpu_arch >= CPU_ARCH_ARMv6 && (cr & CR_XP))) { + if (!cpu_is_xsc3()) { + /* + * Mark device regions on ARMv6+ as execute-never + * to prevent speculative instruction fetches. + */ + mem_types[MT_DEVICE].prot_sect |= PMD_SECT_XN; + mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_XN; + mem_types[MT_DEVICE_CACHED].prot_sect |= PMD_SECT_XN; + mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_XN; + } + if (cpu_arch >= CPU_ARCH_ARMv7 && (cr & CR_TRE)) { + /* + * For ARMv7 with TEX remapping, + * - shared device is SXCB=1100 + * - nonshared device is SXCB=0100 + * - write combine device mem is SXCB=0001 + * (Uncached Normal memory) + */ + mem_types[MT_DEVICE].prot_sect |= PMD_SECT_TEX(1); + mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(1); + mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_BUFFERABLE; + } else if (cpu_is_xsc3()) { + /* + * For Xscale3, + * - shared device is TEXCB=00101 + * - nonshared device is TEXCB=01000 + * - write combine device mem is TEXCB=00100 + * (Inner/Outer Uncacheable in xsc3 parlance) + */ + mem_types[MT_DEVICE].prot_sect |= PMD_SECT_TEX(1) | PMD_SECT_BUFFERED; + mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(2); + mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1); + } else { + /* + * For ARMv6 and ARMv7 without TEX remapping, + * - shared device is TEXCB=00001 + * - nonshared device is TEXCB=01000 + * - write combine device mem is TEXCB=00100 + * (Uncached Normal in ARMv6 parlance). + */ + mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED; + mem_types[MT_DEVICE_NONSHARED].prot_sect |= PMD_SECT_TEX(2); + mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_TEX(1); + } + } else { + /* + * On others, write combining is "Uncached/Buffered" + */ + mem_types[MT_DEVICE_WC].prot_sect |= PMD_SECT_BUFFERABLE; + } + + /* + * Now deal with the memory-type mappings + */ cp = &cache_policies[cachepolicy]; vecs_pgprot = kern_pgprot = user_pgprot = cp->pte; @@ -317,12 +376,8 @@ static void __init build_mem_type_table(void) * Enable CPU-specific coherency if supported. * (Only available on XSC3 at the moment.) */ - if (arch_is_coherent()) { - if (cpu_is_xsc3()) { - mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S; - mem_types[MT_MEMORY].prot_pte |= L_PTE_SHARED; - } - } + if (arch_is_coherent() && cpu_is_xsc3()) + mem_types[MT_MEMORY].prot_sect |= PMD_SECT_S; /* * ARMv6 and above have extended page tables. @@ -336,11 +391,6 @@ static void __init build_mem_type_table(void) mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE; mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE; - /* - * Mark the device area as "shared device" - */ - mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED; - #ifdef CONFIG_SMP /* * Mark memory with the "shared" attribute for SMP systems @@ -360,9 +410,6 @@ static void __init build_mem_type_table(void) mem_types[MT_LOW_VECTORS].prot_pte |= vecs_pgprot; mem_types[MT_HIGH_VECTORS].prot_pte |= vecs_pgprot; - if (cpu_arch < CPU_ARCH_ARMv5) - mem_types[MT_MINICLEAN].prot_sect &= ~PMD_SECT_TEX(1); - pgprot_user = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | user_pgprot); pgprot_kernel = __pgprot(L_PTE_PRESENT | L_PTE_YOUNG | L_PTE_DIRTY | L_PTE_WRITE | @@ -654,7 +701,7 @@ static inline void prepare_page_table(struct meminfo *mi) /* * Clear out all the mappings below the kernel image. */ - for (addr = 0; addr < MODULE_START; addr += PGDIR_SIZE) + for (addr = 0; addr < MODULES_VADDR; addr += PGDIR_SIZE) pmd_clear(pmd_off_k(addr)); #ifdef CONFIG_XIP_KERNEL @@ -766,7 +813,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc) */ #ifdef CONFIG_XIP_KERNEL map.pfn = __phys_to_pfn(CONFIG_XIP_PHYS_ADDR & SECTION_MASK); - map.virtual = MODULE_START; + map.virtual = MODULES_VADDR; map.length = ((unsigned long)&_etext - map.virtual + ~SECTION_MASK) & SECTION_MASK; map.type = MT_ROM; create_mapping(&map); diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S index 07f82db7094..4d3c0a73e7f 100644 --- a/arch/arm/mm/proc-v7.S +++ b/arch/arm/mm/proc-v7.S @@ -115,7 +115,7 @@ ENTRY(cpu_v7_set_pte_ext) orr r3, r3, r2 orr r3, r3, #PTE_EXT_AP0 | 2 - tst r2, #1 << 4 + tst r1, #1 << 4 orrne r3, r3, #PTE_EXT_TEX(1) tst r1, #L_PTE_WRITE @@ -192,11 +192,11 @@ __v7_setup: mov pc, lr @ return to head.S:__ret ENDPROC(__v7_setup) - /* - * V X F I D LR - * .... ...E PUI. .T.T 4RVI ZFRS BLDP WCAM - * rrrr rrrx xxx0 0101 xxxx xxxx x111 xxxx < forced - * 0 110 0011 1.00 .111 1101 < we want + /* AT + * TFR EV X F I D LR + * .EEE ..EE PUI. .T.T 4RVI ZFRS BLDP WCAM + * rxxx rrxx xxx0 0101 xxxx xxxx x111 xxxx < forced + * 1 0 110 0011 1.00 .111 1101 < we want */ .type v7_crval, #object v7_crval: diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index bf6a10c5fc4..be6aab9c683 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -428,23 +428,23 @@ static int clk_debugfs_register_one(struct clk *c) if (c->id != 0) sprintf(p, ":%d", c->id); d = debugfs_create_dir(s, pa ? pa->dent : clk_debugfs_root); - if (IS_ERR(d)) - return PTR_ERR(d); + if (!d) + return -ENOMEM; c->dent = d; d = debugfs_create_u8("usecount", S_IRUGO, c->dent, (u8 *)&c->usecount); - if (IS_ERR(d)) { - err = PTR_ERR(d); + if (!d) { + err = -ENOMEM; goto err_out; } d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate); - if (IS_ERR(d)) { - err = PTR_ERR(d); + if (!d) { + err = -ENOMEM; goto err_out; } d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags); - if (IS_ERR(d)) { - err = PTR_ERR(d); + if (!d) { + err = -ENOMEM; goto err_out; } return 0; @@ -483,8 +483,8 @@ static int __init clk_debugfs_init(void) int err; d = debugfs_create_dir("clock", NULL); - if (IS_ERR(d)) - return PTR_ERR(d); + if (!d) + return -ENOMEM; clk_debugfs_root = d; list_for_each_entry(c, &clocks, node) { diff --git a/arch/arm/plat-omap/include/mach/entry-macro.S b/arch/arm/plat-omap/include/mach/entry-macro.S index 030118ee204..2276f89671d 100644 --- a/arch/arm/plat-omap/include/mach/entry-macro.S +++ b/arch/arm/plat-omap/include/mach/entry-macro.S @@ -65,7 +65,8 @@ #include <mach/omap34xx.h> #endif -#define INTCPS_SIR_IRQ_OFFSET 0x0040 /* Active interrupt number */ +#define INTCPS_SIR_IRQ_OFFSET 0x0040 /* Active interrupt offset */ +#define ACTIVEIRQ_MASK 0x7f /* Active interrupt bits */ .macro disable_fiq .endm @@ -88,6 +89,7 @@ cmp \irqnr, #0x0 2222: ldrne \irqnr, [\base, #INTCPS_SIR_IRQ_OFFSET] + and \irqnr, \irqnr, #ACTIVEIRQ_MASK /* Clear spurious bits */ .endm diff --git a/arch/arm/plat-omap/include/mach/irqs.h b/arch/arm/plat-omap/include/mach/irqs.h index a2929ac8c68..bed5274c910 100644 --- a/arch/arm/plat-omap/include/mach/irqs.h +++ b/arch/arm/plat-omap/include/mach/irqs.h @@ -372,7 +372,7 @@ /* External TWL4030 gpio interrupts are optional */ #define TWL4030_GPIO_IRQ_BASE TWL4030_PWR_IRQ_END -#ifdef CONFIG_TWL4030_GPIO +#ifdef CONFIG_GPIO_TWL4030 #define TWL4030_GPIO_NR_IRQS 18 #else #define TWL4030_GPIO_NR_IRQS 0 diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 27eec71429b..6bd91ed7cd0 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -148,6 +148,7 @@ config IA64_GENERIC select ACPI_NUMA select SWIOTLB select PCI_MSI + select DMAR help This selects the system type of your hardware. A "generic" kernel will run on any supported IA-64 system. However, if you configure @@ -585,7 +586,7 @@ source "fs/Kconfig.binfmt" endmenu -menu "Power management and ACPI" +menu "Power management and ACPI options" source "kernel/power/Kconfig" @@ -641,6 +642,8 @@ source "net/Kconfig" source "drivers/Kconfig" +source "arch/ia64/hp/sim/Kconfig" + config MSPEC tristate "Memory special operations driver" depends on IA64 @@ -652,6 +655,12 @@ config MSPEC source "fs/Kconfig" +source "arch/ia64/Kconfig.debug" + +source "security/Kconfig" + +source "crypto/Kconfig" + source "arch/ia64/kvm/Kconfig" source "lib/Kconfig" @@ -678,11 +687,3 @@ config IRQ_PER_CPU config IOMMU_HELPER def_bool (IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_GENERIC || SWIOTLB) - -source "arch/ia64/hp/sim/Kconfig" - -source "arch/ia64/Kconfig.debug" - -source "security/Kconfig" - -source "crypto/Kconfig" diff --git a/arch/ia64/hp/common/hwsw_iommu.c b/arch/ia64/hp/common/hwsw_iommu.c index 88b6e6f3fd8..2769dbfd03b 100644 --- a/arch/ia64/hp/common/hwsw_iommu.c +++ b/arch/ia64/hp/common/hwsw_iommu.c @@ -13,19 +13,12 @@ */ #include <linux/device.h> +#include <linux/swiotlb.h> #include <asm/machvec.h> /* swiotlb declarations & definitions: */ extern int swiotlb_late_init_with_default_size (size_t size); -extern ia64_mv_dma_alloc_coherent swiotlb_alloc_coherent; -extern ia64_mv_dma_free_coherent swiotlb_free_coherent; -extern ia64_mv_dma_map_single_attrs swiotlb_map_single_attrs; -extern ia64_mv_dma_unmap_single_attrs swiotlb_unmap_single_attrs; -extern ia64_mv_dma_map_sg_attrs swiotlb_map_sg_attrs; -extern ia64_mv_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs; -extern ia64_mv_dma_supported swiotlb_dma_supported; -extern ia64_mv_dma_mapping_error swiotlb_dma_mapping_error; /* hwiommu declarations & definitions: */ diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h index 7f257507cd8..0d9d16e2d94 100644 --- a/arch/ia64/include/asm/io.h +++ b/arch/ia64/include/asm/io.h @@ -434,28 +434,4 @@ extern void memset_io(volatile void __iomem *s, int c, long n); # endif /* __KERNEL__ */ -/* - * Enabling BIO_VMERGE_BOUNDARY forces us to turn off I/O MMU bypassing. It is said that - * BIO-level virtual merging can give up to 4% performance boost (not verified for ia64). - * On the other hand, we know that I/O MMU bypassing gives ~8% performance improvement on - * SPECweb-like workloads on zx1-based machines. Thus, for now we favor I/O MMU bypassing - * over BIO-level virtual merging. - */ -extern unsigned long ia64_max_iommu_merge_mask; -#if 1 -#define BIO_VMERGE_BOUNDARY 0 -#else -/* - * It makes no sense at all to have this BIO_VMERGE_BOUNDARY macro here. Should be - * replaced by dma_merge_mask() or something of that sort. Note: the only way - * BIO_VMERGE_BOUNDARY is used is to mask off bits. Effectively, our definition gets - * expanded into: - * - * addr & ((ia64_max_iommu_merge_mask + 1) - 1) == (addr & ia64_max_iommu_vmerge_mask) - * - * which is precisely what we want. - */ -#define BIO_VMERGE_BOUNDARY (ia64_max_iommu_merge_mask + 1) -#endif - #endif /* _ASM_IA64_IO_H */ diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index 1ea28bcee33..59c17e44668 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -11,6 +11,7 @@ #define _ASM_IA64_MACHVEC_H #include <linux/types.h> +#include <linux/swiotlb.h> /* forward declarations: */ struct device; @@ -298,27 +299,6 @@ extern void machvec_init_from_cmdline(const char *cmdline); # endif /* CONFIG_IA64_GENERIC */ /* - * Declare default routines which aren't declared anywhere else: - */ -extern ia64_mv_dma_init swiotlb_init; -extern ia64_mv_dma_alloc_coherent swiotlb_alloc_coherent; -extern ia64_mv_dma_free_coherent swiotlb_free_coherent; -extern ia64_mv_dma_map_single swiotlb_map_single; -extern ia64_mv_dma_map_single_attrs swiotlb_map_single_attrs; -extern ia64_mv_dma_unmap_single swiotlb_unmap_single; -extern ia64_mv_dma_unmap_single_attrs swiotlb_unmap_single_attrs; -extern ia64_mv_dma_map_sg swiotlb_map_sg; -extern ia64_mv_dma_map_sg_attrs swiotlb_map_sg_attrs; -extern ia64_mv_dma_unmap_sg swiotlb_unmap_sg; -extern ia64_mv_dma_unmap_sg_attrs swiotlb_unmap_sg_attrs; -extern ia64_mv_dma_sync_single_for_cpu swiotlb_sync_single_for_cpu; -extern ia64_mv_dma_sync_sg_for_cpu swiotlb_sync_sg_for_cpu; -extern ia64_mv_dma_sync_single_for_device swiotlb_sync_single_for_device; -extern ia64_mv_dma_sync_sg_for_device swiotlb_sync_sg_for_device; -extern ia64_mv_dma_mapping_error swiotlb_dma_mapping_error; -extern ia64_mv_dma_supported swiotlb_dma_supported; - -/* * Define default versions so we can extend machvec for new platforms without having * to update the machvec files for all existing platforms. */ diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h index 6bc96ee5432..c0cea375620 100644 --- a/arch/ia64/include/asm/meminit.h +++ b/arch/ia64/include/asm/meminit.h @@ -48,7 +48,6 @@ extern int reserve_elfcorehdr(unsigned long *start, unsigned long *end); */ #define GRANULEROUNDDOWN(n) ((n) & ~(IA64_GRANULE_SIZE-1)) #define GRANULEROUNDUP(n) (((n)+IA64_GRANULE_SIZE-1) & ~(IA64_GRANULE_SIZE-1)) -#define ORDERROUNDDOWN(n) ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1)) #ifdef CONFIG_NUMA extern void call_pernode_memory (unsigned long start, unsigned long len, void *func); diff --git a/arch/ia64/include/asm/sal.h b/arch/ia64/include/asm/sal.h index ea310c0812a..966797a97c9 100644 --- a/arch/ia64/include/asm/sal.h +++ b/arch/ia64/include/asm/sal.h @@ -337,11 +337,24 @@ typedef struct sal_log_record_header { #define sal_log_severity_fatal 1 #define sal_log_severity_corrected 2 +/* + * Error Recovery Info (ERI) bit decode. From SAL Spec section B.2.2 Table B-3 + * Error Section Error_Recovery_Info Field Definition. + */ +#define ERI_NOT_VALID 0x0 /* Error Recovery Field is not valid */ +#define ERI_NOT_ACCESSIBLE 0x30 /* Resource not accessible */ +#define ERI_CONTAINMENT_WARN 0x22 /* Corrupt data propagated */ +#define ERI_UNCORRECTED_ERROR 0x20 /* Uncorrected error */ +#define ERI_COMPONENT_RESET 0x24 /* Component must be reset */ +#define ERI_CORR_ERROR_LOG 0x21 /* Corrected error, needs logging */ +#define ERI_CORR_ERROR_THRESH 0x29 /* Corrected error threshold exceeded */ + /* Definition of log section header structures */ typedef struct sal_log_sec_header { efi_guid_t guid; /* Unique Section ID */ sal_log_revision_t revision; /* Major and Minor revision of Section */ - u16 reserved; + u8 error_recovery_info; /* Platform error recovery status */ + u8 reserved; u32 len; /* Section length */ } sal_log_section_hdr_t; diff --git a/arch/ia64/include/asm/sn/sn_sal.h b/arch/ia64/include/asm/sn/sn_sal.h index 57e649d388b..e310fc0135d 100644 --- a/arch/ia64/include/asm/sn/sn_sal.h +++ b/arch/ia64/include/asm/sn/sn_sal.h @@ -90,6 +90,8 @@ #define SN_SAL_SET_CPU_NUMBER 0x02000068 #define SN_SAL_KERNEL_LAUNCH_EVENT 0x02000069 +#define SN_SAL_WATCHLIST_ALLOC 0x02000070 +#define SN_SAL_WATCHLIST_FREE 0x02000071 /* * Service-specific constants @@ -1185,4 +1187,47 @@ ia64_sn_kernel_launch_event(void) SAL_CALL_NOLOCK(rv, SN_SAL_KERNEL_LAUNCH_EVENT, 0, 0, 0, 0, 0, 0, 0); return rv.status; } + +union sn_watchlist_u { + u64 val; + struct { + u64 blade : 16, + size : 32, + filler : 16; + }; +}; + +static inline int +sn_mq_watchlist_alloc(int blade, void *mq, unsigned int mq_size, + unsigned long *intr_mmr_offset) +{ + struct ia64_sal_retval rv; + unsigned long addr; + union sn_watchlist_u size_blade; + int watchlist; + + addr = (unsigned long)mq; + size_blade.size = mq_size; + size_blade.blade = blade; + + /* + * bios returns watchlist number or negative error number. + */ + ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_ALLOC, addr, + size_blade.val, (u64)intr_mmr_offset, + (u64)&watchlist, 0, 0, 0); + if (rv.status < 0) + return rv.status; + + return watchlist; +} + +static inline int +sn_mq_watchlist_free(int blade, int watchlist_num) +{ + struct ia64_sal_retval rv; + ia64_sal_oemcall_nolock(&rv, SN_SAL_WATCHLIST_FREE, blade, + watchlist_num, 0, 0, 0, 0, 0); + return rv.status; +} #endif /* _ASM_IA64_SN_SN_SAL_H */ diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 0635015d0aa..bd7acc71e8a 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -678,6 +678,30 @@ static int __init acpi_parse_fadt(struct acpi_table_header *table) return 0; } +int __init early_acpi_boot_init(void) +{ + int ret; + + /* + * do a partial walk of MADT to determine how many CPUs + * we have including offline CPUs + */ + if (acpi_table_parse(ACPI_SIG_MADT, acpi_parse_madt)) { + printk(KERN_ERR PREFIX "Can't find MADT\n"); + return 0; + } + + ret = acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, + acpi_parse_lsapic, NR_CPUS); + if (ret < 1) + printk(KERN_ERR PREFIX + "Error parsing MADT - no LAPIC entries\n"); + + return 0; +} + + + int __init acpi_boot_init(void) { @@ -701,11 +725,6 @@ int __init acpi_boot_init(void) printk(KERN_ERR PREFIX "Error parsing LAPIC address override entry\n"); - if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_SAPIC, acpi_parse_lsapic, NR_CPUS) - < 1) - printk(KERN_ERR PREFIX - "Error parsing MADT - no LAPIC entries\n"); - if (acpi_table_parse_madt(ACPI_MADT_TYPE_LOCAL_APIC_NMI, acpi_parse_lapic_nmi, 0) < 0) printk(KERN_ERR PREFIX "Error parsing LAPIC NMI entry\n"); diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c index 031abbf9c87..dbdb778efa0 100644 --- a/arch/ia64/kernel/pci-dma.c +++ b/arch/ia64/kernel/pci-dma.c @@ -12,13 +12,11 @@ #include <asm/machvec.h> #include <linux/dma-mapping.h> -#include <asm/machvec.h> #include <asm/system.h> #ifdef CONFIG_DMAR #include <linux/kernel.h> -#include <linux/string.h> #include <asm/page.h> #include <asm/iommu.h> diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index ae7911702bf..865af27c773 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -359,7 +359,7 @@ reserve_memory (void) } #endif -#ifdef CONFIG_CRASH_KERNEL +#ifdef CONFIG_CRASH_DUMP if (reserve_elfcorehdr(&rsvd_region[n].start, &rsvd_region[n].end) == 0) n++; @@ -561,8 +561,12 @@ setup_arch (char **cmdline_p) #ifdef CONFIG_ACPI /* Initialize the ACPI boot-time table parser */ acpi_table_init(); + early_acpi_boot_init(); # ifdef CONFIG_ACPI_NUMA acpi_numa_init(); +#ifdef CONFIG_ACPI_HOTPLUG_CPU + prefill_possible_map(); +#endif per_cpu_scan_finalize((cpus_weight(early_cpu_possible_map) == 0 ? 32 : cpus_weight(early_cpu_possible_map)), additional_cpus > 0 ? additional_cpus : 0); @@ -853,9 +857,6 @@ void __init setup_per_cpu_areas (void) { /* start_kernel() requires this... */ -#ifdef CONFIG_ACPI_HOTPLUG_CPU - prefill_possible_map(); -#endif } /* diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index d8c5fcd89e5..d85ba98d900 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -635,7 +635,6 @@ static __init int count_node_pages(unsigned long start, unsigned long len, int n (min(end, __pa(MAX_DMA_ADDRESS)) - start) >>PAGE_SHIFT; #endif start = GRANULEROUNDDOWN(start); - start = ORDERROUNDDOWN(start); end = GRANULEROUNDUP(end); mem_data[node].max_pfn = max(mem_data[node].max_pfn, end >> PAGE_SHIFT); diff --git a/arch/ia64/uv/kernel/setup.c b/arch/ia64/uv/kernel/setup.c index cf5f28ae96c..7a5ae633198 100644 --- a/arch/ia64/uv/kernel/setup.c +++ b/arch/ia64/uv/kernel/setup.c @@ -19,6 +19,12 @@ EXPORT_PER_CPU_SYMBOL_GPL(__uv_hub_info); #ifdef CONFIG_IA64_SGI_UV int sn_prom_type; +long sn_partition_id; +EXPORT_SYMBOL(sn_partition_id); +long sn_coherency_id; +EXPORT_SYMBOL_GPL(sn_coherency_id); +long sn_region_size; +EXPORT_SYMBOL(sn_region_size); #endif struct redir_addr { diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c index fdf088f2430..7b4cefa2199 100644 --- a/arch/powerpc/platforms/cell/ras.c +++ b/arch/powerpc/platforms/cell/ras.c @@ -16,6 +16,7 @@ #include <linux/kexec.h> #include <linux/crash_dump.h> +#include <asm/kexec.h> #include <asm/reg.h> #include <asm/io.h> #include <asm/prom.h> diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c index 31481dc485d..7190493e9bd 100644 --- a/arch/powerpc/platforms/pseries/pci_dlpar.c +++ b/arch/powerpc/platforms/pseries/pci_dlpar.c @@ -189,7 +189,6 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn) { struct pci_controller *phb; int primary; - struct pci_bus *b; primary = list_empty(&hose_list); phb = pcibios_alloc_controller(dn); diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index e60c59b81bd..4cf0ab13d18 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -1494,7 +1494,7 @@ config HAVE_ARCH_EARLY_PFN_TO_NID def_bool X86_64 depends on NUMA -menu "Power management options" +menu "Power management and ACPI options" depends on !X86_VOYAGER config ARCH_HIBERNATION_HEADER diff --git a/arch/x86/include/asm/irq_vectors.h b/arch/x86/include/asm/irq_vectors.h index d843ed0e9b2..0005adb0f94 100644 --- a/arch/x86/include/asm/irq_vectors.h +++ b/arch/x86/include/asm/irq_vectors.h @@ -101,30 +101,22 @@ #define LAST_VM86_IRQ 15 #define invalid_vm86_irq(irq) ((irq) < 3 || (irq) > 15) -#ifdef CONFIG_X86_64 +#if defined(CONFIG_X86_IO_APIC) && !defined(CONFIG_X86_VOYAGER) # if NR_CPUS < MAX_IO_APICS # define NR_IRQS (NR_VECTORS + (32 * NR_CPUS)) # else # define NR_IRQS (NR_VECTORS + (32 * MAX_IO_APICS)) # endif -#elif !defined(CONFIG_X86_VOYAGER) +#elif defined(CONFIG_X86_VOYAGER) -# if defined(CONFIG_X86_IO_APIC) || defined(CONFIG_PARAVIRT) || defined(CONFIG_X86_VISWS) - -# define NR_IRQS 224 - -# else /* IO_APIC || PARAVIRT */ - -# define NR_IRQS 16 - -# endif +# define NR_IRQS 224 -#else /* !VISWS && !VOYAGER */ +#else /* IO_APIC || VOYAGER */ -# define NR_IRQS 224 +# define NR_IRQS 16 -#endif /* VISWS */ +#endif /* Voyager specific defines */ /* These define the CPIs we use in linux */ diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 46be2fa7ac2..c2a812ebde8 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -108,9 +108,7 @@ static __always_inline unsigned long long __native_read_tsc(void) { DECLARE_ARGS(val, low, high); - rdtsc_barrier(); asm volatile("rdtsc" : EAX_EDX_RET(val, low, high)); - rdtsc_barrier(); return EAX_EDX_VAL(val, low, high); } diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 90ac7718469..4850e4b02b6 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -154,7 +154,7 @@ extern unsigned long node_remap_size[]; #endif -/* sched_domains SD_NODE_INIT for NUMAQ machines */ +/* sched_domains SD_NODE_INIT for NUMA machines */ #define SD_NODE_INIT (struct sched_domain) { \ .min_interval = 8, \ .max_interval = 32, \ @@ -169,8 +169,9 @@ extern unsigned long node_remap_size[]; .flags = SD_LOAD_BALANCE \ | SD_BALANCE_EXEC \ | SD_BALANCE_FORK \ - | SD_SERIALIZE \ - | SD_WAKE_BALANCE, \ + | SD_WAKE_AFFINE \ + | SD_WAKE_BALANCE \ + | SD_SERIALIZE, \ .last_balance = jiffies, \ .balance_interval = 1, \ } diff --git a/arch/x86/include/asm/tsc.h b/arch/x86/include/asm/tsc.h index 38ae163cc91..9cd83a8e40d 100644 --- a/arch/x86/include/asm/tsc.h +++ b/arch/x86/include/asm/tsc.h @@ -34,6 +34,8 @@ static inline cycles_t get_cycles(void) static __always_inline cycles_t vget_cycles(void) { + cycles_t cycles; + /* * We only do VDSOs on TSC capable CPUs, so this shouldnt * access boot_cpu_data (which is not VDSO-safe): @@ -42,7 +44,11 @@ static __always_inline cycles_t vget_cycles(void) if (!cpu_has_tsc) return 0; #endif - return (cycles_t)__native_read_tsc(); + rdtsc_barrier(); + cycles = (cycles_t)__native_read_tsc(); + rdtsc_barrier(); + + return cycles; } extern void tsc_init(void); diff --git a/arch/x86/include/asm/voyager.h b/arch/x86/include/asm/voyager.h index 9c811d2e6f9..b3e64730762 100644 --- a/arch/x86/include/asm/voyager.h +++ b/arch/x86/include/asm/voyager.h @@ -520,6 +520,7 @@ extern void voyager_restart(void); extern void voyager_cat_power_off(void); extern void voyager_cat_do_common_interrupt(void); extern void voyager_handle_nmi(void); +extern void voyager_smp_intr_init(void); /* Commands for the following are */ #define VOYAGER_PSI_READ 0 #define VOYAGER_PSI_WRITE 1 diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index a8fd9ebdc8e..331b318304e 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -50,7 +50,7 @@ static int dma_ops_unity_map(struct dma_ops_domain *dma_dom, /* returns !0 if the IOMMU is caching non-present entries in its TLB */ static int iommu_has_npcache(struct amd_iommu *iommu) { - return iommu->cap & IOMMU_CAP_NPCACHE; + return iommu->cap & (1UL << IOMMU_CAP_NPCACHE); } /**************************************************************************** @@ -536,6 +536,9 @@ static void dma_ops_free_addresses(struct dma_ops_domain *dom, { address >>= PAGE_SHIFT; iommu_area_free(dom->bitmap, address, pages); + + if (address + pages >= dom->next_bit) + dom->need_flush = true; } /**************************************************************************** @@ -992,8 +995,10 @@ static void __unmap_single(struct amd_iommu *iommu, dma_ops_free_addresses(dma_dom, dma_addr, pages); - if (amd_iommu_unmap_flush) + if (amd_iommu_unmap_flush || dma_dom->need_flush) { iommu_flush_pages(iommu, dma_dom->domain.id, dma_addr, size); + dma_dom->need_flush = false; + } } /* diff --git a/arch/x86/kernel/io_apic.c b/arch/x86/kernel/io_apic.c index b764d7429c6..7a3f2028e2e 100644 --- a/arch/x86/kernel/io_apic.c +++ b/arch/x86/kernel/io_apic.c @@ -3611,6 +3611,8 @@ int __init probe_nr_irqs(void) /* something wrong ? */ if (nr < nr_min) nr = nr_min; + if (WARN_ON(nr > NR_IRQS)) + nr = NR_IRQS; return nr; } diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index f4c93f1cfc1..724adfc63cb 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -29,11 +29,7 @@ EXPORT_SYMBOL(pm_power_off); static const struct desc_ptr no_idt = {}; static int reboot_mode; -/* - * Keyboard reset and triple fault may result in INIT, not RESET, which - * doesn't work when we're in vmx root mode. Try ACPI first. - */ -enum reboot_type reboot_type = BOOT_ACPI; +enum reboot_type reboot_type = BOOT_KBD; int reboot_force; #if defined(CONFIG_X86_32) && defined(CONFIG_SMP) diff --git a/arch/x86/kernel/tlb_32.c b/arch/x86/kernel/tlb_32.c index e00534b3353..f4049f3513b 100644 --- a/arch/x86/kernel/tlb_32.c +++ b/arch/x86/kernel/tlb_32.c @@ -154,6 +154,12 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm, flush_mm = mm; flush_va = va; cpus_or(flush_cpumask, cpumask, flush_cpumask); + + /* + * Make the above memory operations globally visible before + * sending the IPI. + */ + smp_mb(); /* * We have to send the IPI only to * CPUs affected. diff --git a/arch/x86/kernel/tlb_64.c b/arch/x86/kernel/tlb_64.c index dcbf7a1159e..8f919ca6949 100644 --- a/arch/x86/kernel/tlb_64.c +++ b/arch/x86/kernel/tlb_64.c @@ -183,6 +183,11 @@ void native_flush_tlb_others(const cpumask_t *cpumaskp, struct mm_struct *mm, cpus_or(f->flush_cpumask, cpumask, f->flush_cpumask); /* + * Make the above memory operations globally visible before + * sending the IPI. + */ + smp_mb(); + /* * We have to send the IPI only to * CPUs affected. */ diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 62348e4fd8d..424093b157d 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -55,7 +55,7 @@ u64 native_sched_clock(void) rdtscll(this_offset); /* return the value in ns */ - return cycles_2_ns(this_offset); + return __cycles_2_ns(this_offset); } /* We need to define a real function for sched_clock, to override the @@ -813,10 +813,6 @@ void __init tsc_init(void) cpu_khz = calibrate_cpu(); #endif - lpj = ((u64)tsc_khz * 1000); - do_div(lpj, HZ); - lpj_fine = lpj; - printk("Detected %lu.%03lu MHz processor.\n", (unsigned long)cpu_khz / 1000, (unsigned long)cpu_khz % 1000); @@ -836,6 +832,10 @@ void __init tsc_init(void) /* now allow native_sched_clock() to use rdtsc */ tsc_disabled = 0; + lpj = ((u64)tsc_khz * 1000); + do_div(lpj, HZ); + lpj_fine = lpj; + use_tsc_delay(); /* Check and install the TSC clocksource */ dmi_check_system(bad_tsc_dmi_table); diff --git a/arch/x86/mach-voyager/setup.c b/arch/x86/mach-voyager/setup.c index 6bbdd633864..a580b9562e7 100644 --- a/arch/x86/mach-voyager/setup.c +++ b/arch/x86/mach-voyager/setup.c @@ -27,7 +27,7 @@ static struct irqaction irq2 = { void __init intr_init_hook(void) { #ifdef CONFIG_SMP - smp_intr_init(); + voyager_smp_intr_init(); #endif setup_irq(2, &irq2); diff --git a/arch/x86/mach-voyager/voyager_smp.c b/arch/x86/mach-voyager/voyager_smp.c index 7f4c6af1435..0e331652681 100644 --- a/arch/x86/mach-voyager/voyager_smp.c +++ b/arch/x86/mach-voyager/voyager_smp.c @@ -1258,7 +1258,7 @@ static void handle_vic_irq(unsigned int irq, struct irq_desc *desc) #define QIC_SET_GATE(cpi, vector) \ set_intr_gate((cpi) + QIC_DEFAULT_CPI_BASE, (vector)) -void __init smp_intr_init(void) +void __init voyager_smp_intr_init(void) { int i; diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c index f1dc1b75d16..e89d24815f2 100644 --- a/arch/x86/mm/pageattr.c +++ b/arch/x86/mm/pageattr.c @@ -67,18 +67,18 @@ static void split_page_count(int level) void arch_report_meminfo(struct seq_file *m) { - seq_printf(m, "DirectMap4k: %8lu kB\n", + seq_printf(m, "DirectMap4k: %8lu kB\n", direct_pages_count[PG_LEVEL_4K] << 2); #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - seq_printf(m, "DirectMap2M: %8lu kB\n", + seq_printf(m, "DirectMap2M: %8lu kB\n", direct_pages_count[PG_LEVEL_2M] << 11); #else - seq_printf(m, "DirectMap4M: %8lu kB\n", + seq_printf(m, "DirectMap4M: %8lu kB\n", direct_pages_count[PG_LEVEL_2M] << 12); #endif #ifdef CONFIG_X86_64 if (direct_gbpages) - seq_printf(m, "DirectMap1G: %8lu kB\n", + seq_printf(m, "DirectMap1G: %8lu kB\n", direct_pages_count[PG_LEVEL_1G] << 20); #endif } diff --git a/arch/x86/oprofile/op_model_ppro.c b/arch/x86/oprofile/op_model_ppro.c index 0620d6d45f7..3f1b81a83e2 100644 --- a/arch/x86/oprofile/op_model_ppro.c +++ b/arch/x86/oprofile/op_model_ppro.c @@ -27,8 +27,7 @@ static int num_counters = 2; static int counter_width = 32; #define CTR_IS_RESERVED(msrs, c) (msrs->counters[(c)].addr ? 1 : 0) -#define CTR_READ(l, h, msrs, c) do {rdmsr(msrs->counters[(c)].addr, (l), (h)); } while (0) -#define CTR_OVERFLOWED(n) (!((n) & (1U<<(counter_width-1)))) +#define CTR_OVERFLOWED(n) (!((n) & (1ULL<<(counter_width-1)))) #define CTRL_IS_RESERVED(msrs, c) (msrs->controls[(c)].addr ? 1 : 0) #define CTRL_READ(l, h, msrs, c) do {rdmsr((msrs->controls[(c)].addr), (l), (h)); } while (0) @@ -124,14 +123,14 @@ static void ppro_setup_ctrs(struct op_msrs const * const msrs) static int ppro_check_ctrs(struct pt_regs * const regs, struct op_msrs const * const msrs) { - unsigned int low, high; + u64 val; int i; for (i = 0 ; i < num_counters; ++i) { if (!reset_value[i]) continue; - CTR_READ(low, high, msrs, i); - if (CTR_OVERFLOWED(low)) { + rdmsrl(msrs->counters[i].addr, val); + if (CTR_OVERFLOWED(val)) { oprofile_add_sample(regs, i); wrmsrl(msrs->counters[i].addr, -reset_value[i]); } diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index b61534c7a4c..5e4686d70f6 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -863,15 +863,16 @@ static void xen_alloc_ptpage(struct mm_struct *mm, unsigned long pfn, unsigned l if (PagePinned(virt_to_page(mm->pgd))) { SetPagePinned(page); + vm_unmap_aliases(); if (!PageHighMem(page)) { make_lowmem_page_readonly(__va(PFN_PHYS((unsigned long)pfn))); if (level == PT_PTE && USE_SPLIT_PTLOCKS) pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn); - } else + } else { /* make sure there are no stray mappings of this page */ kmap_flush_unused(); - vm_unmap_aliases(); + } } } diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index aba77b2b7d1..688936044dc 100644 --- a/arch/x86/xen/mmu.c +++ b/arch/x86/xen/mmu.c @@ -850,13 +850,16 @@ static int xen_pin_page(struct mm_struct *mm, struct page *page, read-only, and can be pinned. */ static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd) { + vm_unmap_aliases(); + xen_mc_batch(); - if (xen_pgd_walk(mm, xen_pin_page, USER_LIMIT)) { - /* re-enable interrupts for kmap_flush_unused */ + if (xen_pgd_walk(mm, xen_pin_page, USER_LIMIT)) { + /* re-enable interrupts for flushing */ xen_mc_issue(0); + kmap_flush_unused(); - vm_unmap_aliases(); + xen_mc_batch(); } @@ -874,7 +877,7 @@ static void __xen_pgd_pin(struct mm_struct *mm, pgd_t *pgd) #else /* CONFIG_X86_32 */ #ifdef CONFIG_X86_PAE /* Need to make sure unshared kernel PMD is pinnable */ - xen_pin_page(mm, virt_to_page(pgd_page(pgd[pgd_index(TASK_SIZE)])), + xen_pin_page(mm, pgd_page(pgd[pgd_index(TASK_SIZE)]), PT_PMD); #endif xen_do_pin(MMUEXT_PIN_L3_TABLE, PFN_DOWN(__pa(pgd))); @@ -991,7 +994,7 @@ static void __xen_pgd_unpin(struct mm_struct *mm, pgd_t *pgd) #ifdef CONFIG_X86_PAE /* Need to make sure unshared kernel PMD is unpinned */ - xen_unpin_page(mm, virt_to_page(pgd_page(pgd[pgd_index(TASK_SIZE)])), + xen_unpin_page(mm, pgd_page(pgd[pgd_index(TASK_SIZE)]), PT_PMD); #endif diff --git a/block/blk-core.c b/block/blk-core.c index c3df30cfb3f..10e8a64a5a5 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1770,8 +1770,6 @@ static void end_that_request_last(struct request *req, int error) { struct gendisk *disk = req->rq_disk; - blk_delete_timer(req); - if (blk_rq_tagged(req)) blk_queue_end_tag(req->q, req); @@ -1781,6 +1779,8 @@ static void end_that_request_last(struct request *req, int error) if (unlikely(laptop_mode) && blk_fs_request(req)) laptop_io_completion(); + blk_delete_timer(req); + /* * Account IO completion. bar_rq isn't accounted as a normal * IO on queueing nor completion. Accounting the containing diff --git a/block/blk-merge.c b/block/blk-merge.c index 8681cd6f991..b92f5b0866b 100644 --- a/block/blk-merge.c +++ b/block/blk-merge.c @@ -222,27 +222,6 @@ new_segment: } EXPORT_SYMBOL(blk_rq_map_sg); -static inline int ll_new_mergeable(struct request_queue *q, - struct request *req, - struct bio *bio) -{ - int nr_phys_segs = bio_phys_segments(q, bio); - - if (req->nr_phys_segments + nr_phys_segs > q->max_phys_segments) { - req->cmd_flags |= REQ_NOMERGE; - if (req == q->last_merge) - q->last_merge = NULL; - return 0; - } - - /* - * A hw segment is just getting larger, bump just the phys - * counter. - */ - req->nr_phys_segments += nr_phys_segs; - return 1; -} - static inline int ll_new_hw_segment(struct request_queue *q, struct request *req, struct bio *bio) diff --git a/block/blk-timeout.c b/block/blk-timeout.c index 972a63f848f..69185ea9fae 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -75,14 +75,7 @@ void blk_delete_timer(struct request *req) { struct request_queue *q = req->q; - /* - * Nothing to detach - */ - if (!q->rq_timed_out_fn || !req->deadline) - return; - list_del_init(&req->timeout_list); - if (list_empty(&q->timeout_list)) del_timer(&q->timeout); } @@ -142,7 +135,7 @@ void blk_rq_timed_out_timer(unsigned long data) } if (next_set && !list_empty(&q->timeout_list)) - mod_timer(&q->timeout, round_jiffies(next)); + mod_timer(&q->timeout, round_jiffies_up(next)); spin_unlock_irqrestore(q->queue_lock, flags); } @@ -198,17 +191,10 @@ void blk_add_timer(struct request *req) /* * If the timer isn't already pending or this timeout is earlier - * than an existing one, modify the timer. Round to next nearest + * than an existing one, modify the timer. Round up to next nearest * second. */ - expiry = round_jiffies(req->deadline); - - /* - * We use ->deadline == 0 to detect whether a timer was added or - * not, so just increase to next jiffy for that specific case - */ - if (unlikely(!req->deadline)) - req->deadline = 1; + expiry = round_jiffies_up(req->deadline); if (!timer_pending(&q->timeout) || time_before(expiry, q->timeout.expires)) diff --git a/block/elevator.c b/block/elevator.c index 59173a69ebd..9ac82dde99d 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -773,12 +773,6 @@ struct request *elv_next_request(struct request_queue *q) */ rq->cmd_flags |= REQ_STARTED; blk_add_trace_rq(q, rq, BLK_TA_ISSUE); - - /* - * We are now handing the request to the hardware, - * add the timeout handler - */ - blk_add_timer(rq); } if (!q->boundary_rq || q->boundary_rq == rq) { @@ -850,6 +844,12 @@ void elv_dequeue_request(struct request_queue *q, struct request *rq) */ if (blk_account_rq(rq)) q->in_flight++; + + /* + * We are now handing the request to the hardware, add the + * timeout handler. + */ + blk_add_timer(rq); } EXPORT_SYMBOL(elv_dequeue_request); diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c index 4023885353e..12de1fdaa6c 100644 --- a/drivers/block/cciss.c +++ b/drivers/block/cciss.c @@ -96,6 +96,8 @@ static const struct pci_device_id cciss_pci_device_id[] = { {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3245}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3247}, {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x3249}, + {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324A}, + {PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_CISSE, 0x103C, 0x324B}, {PCI_VENDOR_ID_HP, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_RAID << 8, 0xffff << 8, 0}, {0,} @@ -133,6 +135,8 @@ static struct board_type products[] = { {0x3245103C, "Smart Array P410i", &SA5_access}, {0x3247103C, "Smart Array P411", &SA5_access}, {0x3249103C, "Smart Array P812", &SA5_access}, + {0x324A103C, "Smart Array P712m", &SA5_access}, + {0x324B103C, "Smart Array P711m", &SA5_access}, {0xFFFF103C, "Unknown Smart Array", &SA5_access}, }; @@ -1366,6 +1370,7 @@ static void cciss_add_disk(ctlr_info_t *h, struct gendisk *disk, disk->first_minor = drv_index << NWD_SHIFT; disk->fops = &cciss_fops; disk->private_data = &h->drv[drv_index]; + disk->driverfs_dev = &h->pdev->dev; /* Set up queue information */ blk_queue_bounce_limit(disk->queue, h->pdev->dma_mask); @@ -3404,7 +3409,8 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, int i; int j = 0; int rc; - int dac; + int dac, return_code; + InquiryData_struct *inq_buff = NULL; i = alloc_cciss_hba(); if (i < 0) @@ -3510,6 +3516,25 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, /* Turn the interrupts on so we can service requests */ hba[i]->access.set_intr_mask(hba[i], CCISS_INTR_ON); + /* Get the firmware version */ + inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL); + if (inq_buff == NULL) { + printk(KERN_ERR "cciss: out of memory\n"); + goto clean4; + } + + return_code = sendcmd_withirq(CISS_INQUIRY, i, inq_buff, + sizeof(InquiryData_struct), 0, 0 , 0, TYPE_CMD); + if (return_code == IO_OK) { + hba[i]->firm_ver[0] = inq_buff->data_byte[32]; + hba[i]->firm_ver[1] = inq_buff->data_byte[33]; + hba[i]->firm_ver[2] = inq_buff->data_byte[34]; + hba[i]->firm_ver[3] = inq_buff->data_byte[35]; + } else { /* send command failed */ + printk(KERN_WARNING "cciss: unable to determine firmware" + " version of controller\n"); + } + cciss_procinit(i); hba[i]->cciss_max_sectors = 2048; @@ -3520,6 +3545,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev, return 1; clean4: + kfree(inq_buff); #ifdef CONFIG_CISS_SCSI_TAPE kfree(hba[i]->scsi_rejects.complete); #endif diff --git a/drivers/block/cpqarray.c b/drivers/block/cpqarray.c index 47d233c6d0b..5d39df14ed9 100644 --- a/drivers/block/cpqarray.c +++ b/drivers/block/cpqarray.c @@ -567,7 +567,12 @@ static int __init cpqarray_init(void) num_cntlrs_reg++; } - return(num_cntlrs_reg); + if (num_cntlrs_reg) + return 0; + else { + pci_unregister_driver(&cpqarray_pci_driver); + return -ENODEV; + } } /* Function to find the first free pointer into our hba[] array */ diff --git a/drivers/char/vt.c b/drivers/char/vt.c index d8f83e26e4a..a5af6072e2b 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -1644,7 +1644,10 @@ static void reset_terminal(struct vc_data *vc, int do_clear) vc->vc_tab_stop[1] = vc->vc_tab_stop[2] = vc->vc_tab_stop[3] = - vc->vc_tab_stop[4] = 0x01010101; + vc->vc_tab_stop[4] = + vc->vc_tab_stop[5] = + vc->vc_tab_stop[6] = + vc->vc_tab_stop[7] = 0x01010101; vc->vc_bell_pitch = DEFAULT_BELL_PITCH; vc->vc_bell_duration = DEFAULT_BELL_DURATION; @@ -1935,7 +1938,10 @@ static void do_con_trol(struct tty_struct *tty, struct vc_data *vc, int c) vc->vc_tab_stop[1] = vc->vc_tab_stop[2] = vc->vc_tab_stop[3] = - vc->vc_tab_stop[4] = 0; + vc->vc_tab_stop[4] = + vc->vc_tab_stop[5] = + vc->vc_tab_stop[6] = + vc->vc_tab_stop[7] = 0; } return; case 'm': diff --git a/drivers/firewire/fw-device.c b/drivers/firewire/fw-device.c index 3fccdd48410..6b9be42c7b9 100644 --- a/drivers/firewire/fw-device.c +++ b/drivers/firewire/fw-device.c @@ -587,8 +587,7 @@ static void create_units(struct fw_device *device) unit->device.bus = &fw_bus_type; unit->device.type = &fw_unit_type; unit->device.parent = &device->device; - snprintf(unit->device.bus_id, sizeof(unit->device.bus_id), - "%s.%d", device->device.bus_id, i++); + dev_set_name(&unit->device, "%s.%d", dev_name(&device->device), i++); init_fw_attribute_group(&unit->device, fw_unit_attributes, @@ -711,8 +710,7 @@ static void fw_device_init(struct work_struct *work) device->device.type = &fw_device_type; device->device.parent = device->card->device; device->device.devt = MKDEV(fw_cdev_major, minor); - snprintf(device->device.bus_id, sizeof(device->device.bus_id), - "fw%d", minor); + dev_set_name(&device->device, "fw%d", minor); init_fw_attribute_group(&device->device, fw_device_attributes, @@ -741,13 +739,13 @@ static void fw_device_init(struct work_struct *work) if (device->config_rom_retries) fw_notify("created device %s: GUID %08x%08x, S%d00, " "%d config ROM retries\n", - device->device.bus_id, + dev_name(&device->device), device->config_rom[3], device->config_rom[4], 1 << device->max_speed, device->config_rom_retries); else fw_notify("created device %s: GUID %08x%08x, S%d00\n", - device->device.bus_id, + dev_name(&device->device), device->config_rom[3], device->config_rom[4], 1 << device->max_speed); device->config_rom_retries = 0; @@ -883,12 +881,12 @@ static void fw_device_refresh(struct work_struct *work) FW_DEVICE_RUNNING) == FW_DEVICE_SHUTDOWN) goto gone; - fw_notify("refreshed device %s\n", device->device.bus_id); + fw_notify("refreshed device %s\n", dev_name(&device->device)); device->config_rom_retries = 0; goto out; give_up: - fw_notify("giving up on refresh of device %s\n", device->device.bus_id); + fw_notify("giving up on refresh of device %s\n", dev_name(&device->device)); gone: atomic_set(&device->state, FW_DEVICE_SHUTDOWN); fw_device_shutdown(work); diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c index 8e16bfbdcb3..46610b09041 100644 --- a/drivers/firewire/fw-ohci.c +++ b/drivers/firewire/fw-ohci.c @@ -2468,7 +2468,7 @@ pci_probe(struct pci_dev *dev, const struct pci_device_id *ent) goto fail_self_id; fw_notify("Added fw-ohci device %s, OHCI version %x.%x\n", - dev->dev.bus_id, version >> 16, version & 0xff); + dev_name(&dev->dev), version >> 16, version & 0xff); return 0; fail_self_id: diff --git a/drivers/firewire/fw-sbp2.c b/drivers/firewire/fw-sbp2.c index d334cac5e1f..97df6dac3a8 100644 --- a/drivers/firewire/fw-sbp2.c +++ b/drivers/firewire/fw-sbp2.c @@ -1135,7 +1135,7 @@ static int sbp2_probe(struct device *dev) tgt->unit = unit; kref_init(&tgt->kref); INIT_LIST_HEAD(&tgt->lu_list); - tgt->bus_id = unit->device.bus_id; + tgt->bus_id = dev_name(&unit->device); tgt->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4]; if (fw_device_enable_phys_dma(device) < 0) diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index 3e526b6d00c..8daf4793ac3 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -81,9 +81,9 @@ static void dmi_table(u8 *buf, int len, int num, const struct dmi_header *dm = (const struct dmi_header *)data; /* - * We want to know the total length (formated area and strings) - * before decoding to make sure we won't run off the table in - * dmi_decode or dmi_string + * We want to know the total length (formatted area and + * strings) before decoding to make sure we won't run off the + * table in dmi_decode or dmi_string */ data += dm->length; while ((data - buf < len - 1) && (data[0] || data[1])) diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index bc011da79e1..be3285912cb 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -116,6 +116,18 @@ static const char* temperature_sensors_sets[][36] = { /* Set 9: Macbook Pro 3,1 (Santa Rosa) */ { "TALP", "TB0T", "TC0D", "TC0P", "TG0D", "TG0H", "TTF0", "TW0P", "Th0H", "Th1H", "Th2H", "Tm0P", "Ts0P", NULL }, +/* Set 10: iMac 5,1 */ + { "TA0P", "TC0D", "TC0P", "TG0D", "TH0P", "TO0P", "Tm0P", NULL }, +/* Set 11: Macbook 5,1 */ + { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0P", "TN0D", "TN0P", + "TTF0", "Th0H", "Th1H", "ThFH", "Ts0P", "Ts0S", NULL }, +/* Set 12: Macbook Pro 5,1 */ + { "TB0T", "TB1T", "TB2T", "TB3T", "TC0D", "TC0F", "TC0P", "TG0D", + "TG0F", "TG0H", "TG0P", "TG0T", "TG1H", "TN0D", "TN0P", "TTF0", + "Th2H", "Tm0P", "Ts0P", "Ts0S", NULL }, +/* Set 13: iMac 8,1 */ + { "TA0P", "TC0D", "TC0H", "TC0P", "TG0D", "TG0H", "TG0P", "TH0P", + "TL0P", "TO0P", "TW0P", "Tm0P", "Tp0P", NULL }, }; /* List of keys used to read/write fan speeds */ @@ -1276,6 +1288,14 @@ static __initdata struct dmi_match_data applesmc_dmi_data[] = { { .accelerometer = 1, .light = 1, .temperature_set = 8 }, /* MacBook Pro 3: accelerometer, backlight and temperature set 9 */ { .accelerometer = 1, .light = 1, .temperature_set = 9 }, +/* iMac 5: light sensor only, temperature set 10 */ + { .accelerometer = 0, .light = 0, .temperature_set = 10 }, +/* MacBook 5: accelerometer, backlight and temperature set 11 */ + { .accelerometer = 1, .light = 1, .temperature_set = 11 }, +/* MacBook Pro 5: accelerometer, backlight and temperature set 12 */ + { .accelerometer = 1, .light = 1, .temperature_set = 12 }, +/* iMac 8: light sensor only, temperature set 13 */ + { .accelerometer = 0, .light = 0, .temperature_set = 13 }, }; /* Note that DMI_MATCH(...,"MacBook") will match "MacBookPro1,1". @@ -1285,6 +1305,10 @@ static __initdata struct dmi_system_id applesmc_whitelist[] = { DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), DMI_MATCH(DMI_PRODUCT_NAME, "MacBookAir") }, &applesmc_dmi_data[7]}, + { applesmc_dmi_match, "Apple MacBook Pro 5", { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5") }, + &applesmc_dmi_data[12]}, { applesmc_dmi_match, "Apple MacBook Pro 4", { DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro4") }, @@ -1305,6 +1329,10 @@ static __initdata struct dmi_system_id applesmc_whitelist[] = { DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), DMI_MATCH(DMI_PRODUCT_NAME,"MacBook3") }, &applesmc_dmi_data[6]}, + { applesmc_dmi_match, "Apple MacBook 5", { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5") }, + &applesmc_dmi_data[11]}, { applesmc_dmi_match, "Apple MacBook", { DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), DMI_MATCH(DMI_PRODUCT_NAME,"MacBook") }, @@ -1317,6 +1345,14 @@ static __initdata struct dmi_system_id applesmc_whitelist[] = { DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), DMI_MATCH(DMI_PRODUCT_NAME,"MacPro2") }, &applesmc_dmi_data[4]}, + { applesmc_dmi_match, "Apple iMac 8", { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), + DMI_MATCH(DMI_PRODUCT_NAME, "iMac8") }, + &applesmc_dmi_data[13]}, + { applesmc_dmi_match, "Apple iMac 5", { + DMI_MATCH(DMI_BOARD_VENDOR, "Apple"), + DMI_MATCH(DMI_PRODUCT_NAME, "iMac5") }, + &applesmc_dmi_data[10]}, { applesmc_dmi_match, "Apple iMac", { DMI_MATCH(DMI_BOARD_VENDOR,"Apple"), DMI_MATCH(DMI_PRODUCT_NAME,"iMac") }, diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c index 965cfdb84eb..c19f2326715 100644 --- a/drivers/ieee1394/dv1394.c +++ b/drivers/ieee1394/dv1394.c @@ -1270,8 +1270,14 @@ static int dv1394_mmap(struct file *file, struct vm_area_struct *vma) struct video_card *video = file_to_video_card(file); int retval = -EINVAL; - /* serialize mmap */ - mutex_lock(&video->mtx); + /* + * We cannot use the blocking variant mutex_lock here because .mmap + * is called with mmap_sem held, while .ioctl, .read, .write acquire + * video->mtx and subsequently call copy_to/from_user which will + * grab mmap_sem in case of a page fault. + */ + if (!mutex_trylock(&video->mtx)) + return -EAGAIN; if ( ! video_card_initialized(video) ) { retval = do_dv1394_init_default(video); diff --git a/drivers/ieee1394/hosts.c b/drivers/ieee1394/hosts.c index 8dd09d85041..237d0c9d69c 100644 --- a/drivers/ieee1394/hosts.c +++ b/drivers/ieee1394/hosts.c @@ -155,11 +155,11 @@ struct hpsb_host *hpsb_alloc_host(struct hpsb_host_driver *drv, size_t extra, memcpy(&h->device, &nodemgr_dev_template_host, sizeof(h->device)); h->device.parent = dev; set_dev_node(&h->device, dev_to_node(dev)); - snprintf(h->device.bus_id, BUS_ID_SIZE, "fw-host%d", h->id); + dev_set_name(&h->device, "fw-host%d", h->id); h->host_dev.parent = &h->device; h->host_dev.class = &hpsb_host_class; - snprintf(h->host_dev.bus_id, BUS_ID_SIZE, "fw-host%d", h->id); + dev_set_name(&h->host_dev, "fw-host%d", h->id); if (device_register(&h->device)) goto fail; diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 2376b729e87..9e39f73282e 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -826,13 +826,11 @@ static struct node_entry *nodemgr_create_node(octlet_t guid, memcpy(&ne->device, &nodemgr_dev_template_ne, sizeof(ne->device)); ne->device.parent = &host->device; - snprintf(ne->device.bus_id, BUS_ID_SIZE, "%016Lx", - (unsigned long long)(ne->guid)); + dev_set_name(&ne->device, "%016Lx", (unsigned long long)(ne->guid)); ne->node_dev.parent = &ne->device; ne->node_dev.class = &nodemgr_ne_class; - snprintf(ne->node_dev.bus_id, BUS_ID_SIZE, "%016Lx", - (unsigned long long)(ne->guid)); + dev_set_name(&ne->node_dev, "%016Lx", (unsigned long long)(ne->guid)); if (device_register(&ne->device)) goto fail_devreg; @@ -932,13 +930,11 @@ static void nodemgr_register_device(struct node_entry *ne, ud->device.parent = parent; - snprintf(ud->device.bus_id, BUS_ID_SIZE, "%s-%u", - ne->device.bus_id, ud->id); + dev_set_name(&ud->device, "%s-%u", dev_name(&ne->device), ud->id); ud->unit_dev.parent = &ud->device; ud->unit_dev.class = &nodemgr_ud_class; - snprintf(ud->unit_dev.bus_id, BUS_ID_SIZE, "%s-%u", - ne->device.bus_id, ud->id); + dev_set_name(&ud->unit_dev, "%s-%u", dev_name(&ne->device), ud->id); if (device_register(&ud->device)) goto fail_devreg; @@ -953,7 +949,7 @@ static void nodemgr_register_device(struct node_entry *ne, fail_classdevreg: device_unregister(&ud->device); fail_devreg: - HPSB_ERR("Failed to create unit %s", ud->device.bus_id); + HPSB_ERR("Failed to create unit %s", dev_name(&ud->device)); } diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index 9f19ac49210..bf7e761c12b 100644 --- a/drivers/ieee1394/raw1394.c +++ b/drivers/ieee1394/raw1394.c @@ -2268,7 +2268,8 @@ static ssize_t raw1394_write(struct file *file, const char __user * buffer, return -EFAULT; } - mutex_lock(&fi->state_mutex); + if (!mutex_trylock(&fi->state_mutex)) + return -EAGAIN; switch (fi->state) { case opened: @@ -2548,7 +2549,8 @@ static int raw1394_mmap(struct file *file, struct vm_area_struct *vma) struct file_info *fi = file->private_data; int ret; - mutex_lock(&fi->state_mutex); + if (!mutex_trylock(&fi->state_mutex)) + return -EAGAIN; if (fi->iso_state == RAW1394_ISO_INACTIVE) ret = -EINVAL; @@ -2669,7 +2671,8 @@ static long raw1394_ioctl(struct file *file, unsigned int cmd, break; } - mutex_lock(&fi->state_mutex); + if (!mutex_trylock(&fi->state_mutex)) + return -EAGAIN; switch (fi->iso_state) { case RAW1394_ISO_INACTIVE: diff --git a/drivers/md/linear.c b/drivers/md/linear.c index 190147c79e7..3b90c5c924e 100644 --- a/drivers/md/linear.c +++ b/drivers/md/linear.c @@ -148,6 +148,8 @@ static linear_conf_t *linear_conf(mddev_t *mddev, int raid_disks) min_sectors = conf->array_sectors; sector_div(min_sectors, PAGE_SIZE/sizeof(struct dev_info *)); + if (min_sectors == 0) + min_sectors = 1; /* min_sectors is the minimum spacing that will fit the hash * table in one PAGE. This may be much smaller than needed. diff --git a/drivers/md/md.c b/drivers/md/md.c index 9abf6ed1653..1b1d32694f6 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -3884,7 +3884,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) if (mode == 0) { mdk_rdev_t *rdev; struct list_head *tmp; - struct block_device *bdev; printk(KERN_INFO "md: %s stopped.\n", mdname(mddev)); @@ -3941,11 +3940,6 @@ static int do_md_stop(mddev_t * mddev, int mode, int is_open) mddev->degraded = 0; mddev->barriers_work = 0; mddev->safemode = 0; - bdev = bdget_disk(mddev->gendisk, 0); - if (bdev) { - blkdev_ioctl(bdev, 0, BLKRRPART, 0); - bdput(bdev); - } kobject_uevent(&disk_to_dev(mddev->gendisk)->kobj, KOBJ_CHANGE); } else if (mddev->pers) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index da5129a24b1..970a96ef9b1 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1137,7 +1137,7 @@ static int raid10_add_disk(mddev_t *mddev, mdk_rdev_t *rdev) if (!enough(conf)) return -EINVAL; - if (rdev->raid_disk) + if (rdev->raid_disk >= 0) first = last = rdev->raid_disk; if (rdev->saved_raid_disk >= 0 && diff --git a/drivers/message/fusion/mptlan.c b/drivers/message/fusion/mptlan.c index a1abf95cf75..603ffd008c7 100644 --- a/drivers/message/fusion/mptlan.c +++ b/drivers/message/fusion/mptlan.c @@ -77,12 +77,6 @@ MODULE_VERSION(my_VERSION); * Fusion MPT LAN private structures */ -struct NAA_Hosed { - u16 NAA; - u8 ieee[FC_ALEN]; - struct NAA_Hosed *next; -}; - struct BufferControl { struct sk_buff *skb; dma_addr_t dma; @@ -159,11 +153,6 @@ static u8 LanCtx = MPT_MAX_PROTOCOL_DRIVERS; static u32 max_buckets_out = 127; static u32 tx_max_out_p = 127 - 16; -#ifdef QLOGIC_NAA_WORKAROUND -static struct NAA_Hosed *mpt_bad_naa = NULL; -DEFINE_RWLOCK(bad_naa_lock); -#endif - /*=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=*/ /** * lan_reply - Handle all data sent from the hardware. @@ -780,30 +769,6 @@ mpt_lan_sdu_send (struct sk_buff *skb, struct net_device *dev) // ctx, skb, skb->data)); mac = skb_mac_header(skb); -#ifdef QLOGIC_NAA_WORKAROUND -{ - struct NAA_Hosed *nh; - - /* Munge the NAA for Tx packets to QLogic boards, which don't follow - RFC 2625. The longer I look at this, the more my opinion of Qlogic - drops. */ - read_lock_irq(&bad_naa_lock); - for (nh = mpt_bad_naa; nh != NULL; nh=nh->next) { - if ((nh->ieee[0] == mac[0]) && - (nh->ieee[1] == mac[1]) && - (nh->ieee[2] == mac[2]) && - (nh->ieee[3] == mac[3]) && - (nh->ieee[4] == mac[4]) && - (nh->ieee[5] == mac[5])) { - cur_naa = nh->NAA; - dlprintk ((KERN_INFO "mptlan/sdu_send: using NAA value " - "= %04x.\n", cur_naa)); - break; - } - } - read_unlock_irq(&bad_naa_lock); -} -#endif pTrans->TransactionDetails[0] = cpu_to_le32((cur_naa << 16) | (mac[0] << 8) | @@ -1572,79 +1537,6 @@ mpt_lan_type_trans(struct sk_buff *skb, struct net_device *dev) fcllc = (struct fcllc *)skb->data; -#ifdef QLOGIC_NAA_WORKAROUND -{ - u16 source_naa = fch->stype, found = 0; - - /* Workaround for QLogic not following RFC 2625 in regards to the NAA - value. */ - - if ((source_naa & 0xF000) == 0) - source_naa = swab16(source_naa); - - if (fcllc->ethertype == htons(ETH_P_ARP)) - dlprintk ((KERN_INFO "mptlan/type_trans: got arp req/rep w/ naa of " - "%04x.\n", source_naa)); - - if ((fcllc->ethertype == htons(ETH_P_ARP)) && - ((source_naa >> 12) != MPT_LAN_NAA_RFC2625)){ - struct NAA_Hosed *nh, *prevnh; - int i; - - dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep from " - "system with non-RFC 2625 NAA value (%04x).\n", - source_naa)); - - write_lock_irq(&bad_naa_lock); - for (prevnh = nh = mpt_bad_naa; nh != NULL; - prevnh=nh, nh=nh->next) { - if ((nh->ieee[0] == fch->saddr[0]) && - (nh->ieee[1] == fch->saddr[1]) && - (nh->ieee[2] == fch->saddr[2]) && - (nh->ieee[3] == fch->saddr[3]) && - (nh->ieee[4] == fch->saddr[4]) && - (nh->ieee[5] == fch->saddr[5])) { - found = 1; - dlprintk ((KERN_INFO "mptlan/type_trans: ARP Re" - "q/Rep w/ bad NAA from system already" - " in DB.\n")); - break; - } - } - - if ((!found) && (nh == NULL)) { - - nh = kmalloc(sizeof(struct NAA_Hosed), GFP_KERNEL); - dlprintk ((KERN_INFO "mptlan/type_trans: ARP Req/Rep w/" - " bad NAA from system not yet in DB.\n")); - - if (nh != NULL) { - nh->next = NULL; - if (!mpt_bad_naa) - mpt_bad_naa = nh; - if (prevnh) - prevnh->next = nh; - - nh->NAA = source_naa; /* Set the S_NAA value. */ - for (i = 0; i < FC_ALEN; i++) - nh->ieee[i] = fch->saddr[i]; - dlprintk ((KERN_INFO "Got ARP from %02x:%02x:%02x:%02x:" - "%02x:%02x with non-compliant S_NAA value.\n", - fch->saddr[0], fch->saddr[1], fch->saddr[2], - fch->saddr[3], fch->saddr[4],fch->saddr[5])); - } else { - printk (KERN_ERR "mptlan/type_trans: Unable to" - " kmalloc a NAA_Hosed struct.\n"); - } - } else if (!found) { - printk (KERN_ERR "mptlan/type_trans: found not" - " set, but nh isn't null. Evil " - "funkiness abounds.\n"); - } - write_unlock_irq(&bad_naa_lock); - } -} -#endif /* Strip the SNAP header from ARP packets since we don't * pass them through to the 802.2/SNAP layers. diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c index 0d9b2d6f9eb..f210a8ee686 100644 --- a/drivers/mmc/core/bus.c +++ b/drivers/mmc/core/bus.c @@ -216,8 +216,7 @@ int mmc_add_card(struct mmc_card *card) int ret; const char *type; - snprintf(card->dev.bus_id, sizeof(card->dev.bus_id), - "%s:%04x", mmc_hostname(card->host), card->rca); + dev_set_name(&card->dev, "%s:%04x", mmc_hostname(card->host), card->rca); switch (card->type) { case MMC_TYPE_MMC: diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 044d84eeed7..f7284b905eb 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -280,7 +280,11 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card) (card->host->ios.clock / 1000); if (data->flags & MMC_DATA_WRITE) - limit_us = 250000; + /* + * The limit is really 250 ms, but that is + * insufficient for some crappy cards. + */ + limit_us = 300000; else limit_us = 100000; diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c index 6da80fd4d97..5e945e64ead 100644 --- a/drivers/mmc/core/host.c +++ b/drivers/mmc/core/host.c @@ -73,8 +73,7 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev) if (err) goto free; - snprintf(host->class_dev.bus_id, BUS_ID_SIZE, - "mmc%d", host->index); + dev_set_name(&host->class_dev, "mmc%d", host->index); host->parent = dev; host->class_dev.parent = dev; @@ -121,7 +120,7 @@ int mmc_add_host(struct mmc_host *host) WARN_ON((host->caps & MMC_CAP_SDIO_IRQ) && !host->ops->enable_sdio_irq); - led_trigger_register_simple(host->class_dev.bus_id, &host->led); + led_trigger_register_simple(dev_name(&host->class_dev), &host->led); err = device_add(&host->class_dev); if (err) diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index 233d0f9b3c4..46284b52739 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -239,8 +239,7 @@ int sdio_add_func(struct sdio_func *func) { int ret; - snprintf(func->dev.bus_id, sizeof(func->dev.bus_id), - "%s:%d", mmc_card_id(func->card), func->num); + dev_set_name(&func->dev, "%s:%d", mmc_card_id(func->card), func->num); ret = device_add(&func->dev); if (ret == 0) diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c index 07faf5412a1..ad00e163231 100644 --- a/drivers/mmc/host/mmc_spi.c +++ b/drivers/mmc/host/mmc_spi.c @@ -1348,7 +1348,7 @@ static int mmc_spi_probe(struct spi_device *spi) goto fail_add_host; dev_info(&spi->dev, "SD/MMC host %s%s%s%s%s\n", - mmc->class_dev.bus_id, + dev_name(&mmc->class_dev), host->dma_dev ? "" : ", no DMA", (host->pdata && host->pdata->get_ro) ? "" : ", no WP", diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index 30f64b1f235..4d010a984be 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1733,7 +1733,7 @@ int sdhci_add_host(struct sdhci_host *host) mmc_add_host(mmc); printk(KERN_INFO "%s: SDHCI controller on %s [%s] using %s%s\n", - mmc_hostname(mmc), host->hw_name, mmc_dev(mmc)->bus_id, + mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)), (host->flags & SDHCI_USE_ADMA)?"A":"", (host->flags & SDHCI_USE_DMA)?"DMA":"PIO"); diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c index 13844843e8d..82554ddec6b 100644 --- a/drivers/mmc/host/tifm_sd.c +++ b/drivers/mmc/host/tifm_sd.c @@ -632,7 +632,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq) if (host->req) { printk(KERN_ERR "%s : unfinished request detected\n", - sock->dev.bus_id); + dev_name(&sock->dev)); mrq->cmd->error = -ETIMEDOUT; goto err_out; } @@ -672,7 +672,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq) ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE)) { printk(KERN_ERR "%s : scatterlist map failed\n", - sock->dev.bus_id); + dev_name(&sock->dev)); mrq->cmd->error = -ENOMEM; goto err_out; } @@ -684,7 +684,7 @@ static void tifm_sd_request(struct mmc_host *mmc, struct mmc_request *mrq) : PCI_DMA_FROMDEVICE); if (host->sg_len < 1) { printk(KERN_ERR "%s : scatterlist map failed\n", - sock->dev.bus_id); + dev_name(&sock->dev)); tifm_unmap_sg(sock, &host->bounce_buf, 1, r_data->flags & MMC_DATA_WRITE ? PCI_DMA_TODEVICE @@ -748,7 +748,7 @@ static void tifm_sd_end_cmd(unsigned long data) if (!mrq) { printk(KERN_ERR " %s : no request to complete?\n", - sock->dev.bus_id); + dev_name(&sock->dev)); spin_unlock_irqrestore(&sock->lock, flags); return; } @@ -789,7 +789,7 @@ static void tifm_sd_abort(unsigned long data) printk(KERN_ERR "%s : card failed to respond for a long period of time " "(%x, %x)\n", - host->dev->dev.bus_id, host->req->cmd->opcode, host->cmd_flags); + dev_name(&host->dev->dev), host->req->cmd->opcode, host->cmd_flags); tifm_eject(host->dev); } @@ -906,7 +906,7 @@ static int tifm_sd_initialize_host(struct tifm_sd *host) if (rc) { printk(KERN_ERR "%s : controller failed to reset\n", - sock->dev.bus_id); + dev_name(&sock->dev)); return -ENODEV; } @@ -933,7 +933,7 @@ static int tifm_sd_initialize_host(struct tifm_sd *host) if (rc) { printk(KERN_ERR "%s : card not ready - probe failed on initialization\n", - sock->dev.bus_id); + dev_name(&sock->dev)); return -ENODEV; } @@ -954,7 +954,7 @@ static int tifm_sd_probe(struct tifm_dev *sock) if (!(TIFM_SOCK_STATE_OCCUPIED & readl(sock->addr + SOCK_PRESENT_STATE))) { printk(KERN_WARNING "%s : card gone, unexpectedly\n", - sock->dev.bus_id); + dev_name(&sock->dev)); return rc; } diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 3e6f5d8609e..d74ec46aa03 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -406,19 +406,6 @@ struct mtd_info *cfi_cmdset_0002(struct map_info *map, int primary) /* Set the default CFI lock/unlock addresses */ cfi->addr_unlock1 = 0x555; cfi->addr_unlock2 = 0x2aa; - /* Modify the unlock address if we are in compatibility mode */ - if ( /* x16 in x8 mode */ - ((cfi->device_type == CFI_DEVICETYPE_X8) && - (cfi->cfiq->InterfaceDesc == - CFI_INTERFACE_X8_BY_X16_ASYNC)) || - /* x32 in x16 mode */ - ((cfi->device_type == CFI_DEVICETYPE_X16) && - (cfi->cfiq->InterfaceDesc == - CFI_INTERFACE_X16_BY_X32_ASYNC))) - { - cfi->addr_unlock1 = 0xaaa; - cfi->addr_unlock2 = 0x555; - } } /* CFI mode */ else if (cfi->cfi_mode == CFI_MODE_JEDEC) { diff --git a/drivers/mtd/chips/jedec_probe.c b/drivers/mtd/chips/jedec_probe.c index f84ab618214..2f3f2f719ba 100644 --- a/drivers/mtd/chips/jedec_probe.c +++ b/drivers/mtd/chips/jedec_probe.c @@ -1808,9 +1808,7 @@ static inline u32 jedec_read_mfr(struct map_info *map, uint32_t base, * several first banks can contain 0x7f instead of actual ID */ do { - uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8), - cfi_interleave(cfi), - cfi->device_type); + uint32_t ofs = cfi_build_cmd_addr(0 + (bank << 8), map, cfi); mask = (1 << (cfi->device_type * 8)) - 1; result = map_read(map, base + ofs); bank++; @@ -1824,7 +1822,7 @@ static inline u32 jedec_read_id(struct map_info *map, uint32_t base, { map_word result; unsigned long mask; - u32 ofs = cfi_build_cmd_addr(1, cfi_interleave(cfi), cfi->device_type); + u32 ofs = cfi_build_cmd_addr(1, map, cfi); mask = (1 << (cfi->device_type * 8)) -1; result = map_read(map, base + ofs); return result.x[0] & mask; @@ -2067,8 +2065,8 @@ static int jedec_probe_chip(struct map_info *map, __u32 base, } /* Ensure the unlock addresses we try stay inside the map */ - probe_offset1 = cfi_build_cmd_addr(cfi->addr_unlock1, cfi_interleave(cfi), cfi->device_type); - probe_offset2 = cfi_build_cmd_addr(cfi->addr_unlock2, cfi_interleave(cfi), cfi->device_type); + probe_offset1 = cfi_build_cmd_addr(cfi->addr_unlock1, map, cfi); + probe_offset2 = cfi_build_cmd_addr(cfi->addr_unlock2, map, cfi); if ( ((base + probe_offset1 + map_bankwidth(map)) >= map->size) || ((base + probe_offset2 + map_bankwidth(map)) >= map->size)) goto retry; diff --git a/drivers/net/wireless/ath5k/base.c b/drivers/net/wireless/ath5k/base.c index 9e47d727e22..cfd4d052d66 100644 --- a/drivers/net/wireless/ath5k/base.c +++ b/drivers/net/wireless/ath5k/base.c @@ -2942,8 +2942,10 @@ static void ath5k_configure_filter(struct ieee80211_hw *hw, sc->opmode != NL80211_IFTYPE_MESH_POINT && test_bit(ATH_STAT_PROMISC, sc->status)) rfilt |= AR5K_RX_FILTER_PROM; - if (sc->opmode == NL80211_IFTYPE_ADHOC) + if (sc->opmode == NL80211_IFTYPE_STATION || + sc->opmode == NL80211_IFTYPE_ADHOC) { rfilt |= AR5K_RX_FILTER_BEACON; + } /* Set filters */ ath5k_hw_set_rx_filter(ah,rfilt); diff --git a/drivers/net/wireless/ath5k/desc.c b/drivers/net/wireless/ath5k/desc.c index dd1374052ba..5e362a7a362 100644 --- a/drivers/net/wireless/ath5k/desc.c +++ b/drivers/net/wireless/ath5k/desc.c @@ -531,10 +531,10 @@ static int ath5k_hw_proc_5210_rx_status(struct ath5k_hw *ah, AR5K_5210_RX_DESC_STATUS0_RECEIVE_SIGNAL); rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0, AR5K_5210_RX_DESC_STATUS0_RECEIVE_RATE); - rs->rs_antenna = rx_status->rx_status_0 & - AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA; - rs->rs_more = rx_status->rx_status_0 & - AR5K_5210_RX_DESC_STATUS0_MORE; + rs->rs_antenna = AR5K_REG_MS(rx_status->rx_status_0, + AR5K_5210_RX_DESC_STATUS0_RECEIVE_ANTENNA); + rs->rs_more = !!(rx_status->rx_status_0 & + AR5K_5210_RX_DESC_STATUS0_MORE); /* TODO: this timestamp is 13 bit, later on we assume 15 bit */ rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1, AR5K_5210_RX_DESC_STATUS1_RECEIVE_TIMESTAMP); @@ -607,10 +607,10 @@ static int ath5k_hw_proc_5212_rx_status(struct ath5k_hw *ah, AR5K_5212_RX_DESC_STATUS0_RECEIVE_SIGNAL); rs->rs_rate = AR5K_REG_MS(rx_status->rx_status_0, AR5K_5212_RX_DESC_STATUS0_RECEIVE_RATE); - rs->rs_antenna = rx_status->rx_status_0 & - AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA; - rs->rs_more = rx_status->rx_status_0 & - AR5K_5212_RX_DESC_STATUS0_MORE; + rs->rs_antenna = AR5K_REG_MS(rx_status->rx_status_0, + AR5K_5212_RX_DESC_STATUS0_RECEIVE_ANTENNA); + rs->rs_more = !!(rx_status->rx_status_0 & + AR5K_5212_RX_DESC_STATUS0_MORE); rs->rs_tstamp = AR5K_REG_MS(rx_status->rx_status_1, AR5K_5212_RX_DESC_STATUS1_RECEIVE_TIMESTAMP); rs->rs_status = 0; diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index 321dbc8c034..8d690a0eb1a 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3252,7 +3252,11 @@ static void iwl4965_mac_update_tkip_key(struct ieee80211_hw *hw, return; } - iwl_scan_cancel_timeout(priv, 100); + if (iwl_scan_cancel(priv)) { + /* cancel scan failed, just live w/ bad key and rely + briefly on SW decryption */ + return; + } key_flags |= (STA_KEY_FLG_TKIP | STA_KEY_FLG_MAP_KEY_MSK); key_flags |= cpu_to_le16(keyconf->keyidx << STA_KEY_FLG_KEYID_POS); diff --git a/drivers/net/wireless/iwlwifi/iwl-scan.c b/drivers/net/wireless/iwlwifi/iwl-scan.c index 3b0bee331a3..c89365e2ca5 100644 --- a/drivers/net/wireless/iwlwifi/iwl-scan.c +++ b/drivers/net/wireless/iwlwifi/iwl-scan.c @@ -896,6 +896,13 @@ static void iwl_bg_request_scan(struct work_struct *data) return; done: + /* Cannot perform scan. Make sure we clear scanning + * bits from status so next scan request can be performed. + * If we don't clear scanning status bit here all next scan + * will fail + */ + clear_bit(STATUS_SCAN_HW, &priv->status); + clear_bit(STATUS_SCANNING, &priv->status); /* inform mac80211 scan aborted */ queue_work(priv->workqueue, &priv->scan_completed); mutex_unlock(&priv->mutex); diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c index d15a2c99795..285b53e7e26 100644 --- a/drivers/net/wireless/iwlwifi/iwl3945-base.c +++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c @@ -5768,7 +5768,6 @@ static void iwl3945_alive_start(struct iwl3945_priv *priv) if (priv->error_recovering) iwl3945_error_recovery(priv); - ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); return; restart: @@ -6013,6 +6012,7 @@ static void iwl3945_bg_alive_start(struct work_struct *data) mutex_lock(&priv->mutex); iwl3945_alive_start(priv); mutex_unlock(&priv->mutex); + ieee80211_notify_mac(priv->hw, IEEE80211_NOTIFY_RE_ASSOC); } static void iwl3945_bg_rf_kill(struct work_struct *work) @@ -6256,6 +6256,11 @@ static void iwl3945_bg_request_scan(struct work_struct *data) n_probes, (void *)&scan->data[le16_to_cpu(scan->tx_cmd.len)]); + if (scan->channel_count == 0) { + IWL_DEBUG_SCAN("channel count %d\n", scan->channel_count); + goto done; + } + cmd.len += le16_to_cpu(scan->tx_cmd.len) + scan->channel_count * sizeof(struct iwl3945_scan_channel); cmd.data = scan; @@ -6273,6 +6278,14 @@ static void iwl3945_bg_request_scan(struct work_struct *data) return; done: + /* can not perform scan make sure we clear scanning + * bits from status so next scan request can be performed. + * if we dont clear scanning status bit here all next scan + * will fail + */ + clear_bit(STATUS_SCAN_HW, &priv->status); + clear_bit(STATUS_SCANNING, &priv->status); + /* inform mac80211 scan aborted */ queue_work(priv->workqueue, &priv->scan_completed); mutex_unlock(&priv->mutex); diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c index a60ae86bd5c..a3ccd8c1c71 100644 --- a/drivers/net/wireless/zd1211rw/zd_usb.c +++ b/drivers/net/wireless/zd1211rw/zd_usb.c @@ -61,6 +61,7 @@ static struct usb_device_id usb_ids[] = { { USB_DEVICE(0x0105, 0x145f), .driver_info = DEVICE_ZD1211 }, /* ZD1211B */ { USB_DEVICE(0x0ace, 0x1215), .driver_info = DEVICE_ZD1211B }, + { USB_DEVICE(0x0ace, 0xb215), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x157e, 0x300d), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x079b, 0x0062), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x1582, 0x6003), .driver_info = DEVICE_ZD1211B }, @@ -82,6 +83,7 @@ static struct usb_device_id usb_ids[] = { { USB_DEVICE(0x0cde, 0x001a), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x0586, 0x340a), .driver_info = DEVICE_ZD1211B }, { USB_DEVICE(0x0471, 0x1237), .driver_info = DEVICE_ZD1211B }, + { USB_DEVICE(0x07fa, 0x1196), .driver_info = DEVICE_ZD1211B }, /* "Driverless" devices that need ejecting */ { USB_DEVICE(0x0ace, 0x2011), .driver_info = DEVICE_INSTALLER }, { USB_DEVICE(0x0ace, 0x20ff), .driver_info = DEVICE_INSTALLER }, diff --git a/drivers/oprofile/event_buffer.c b/drivers/oprofile/event_buffer.c index d962ba0dd87..191a3202cec 100644 --- a/drivers/oprofile/event_buffer.c +++ b/drivers/oprofile/event_buffer.c @@ -105,7 +105,7 @@ static int event_buffer_open(struct inode *inode, struct file *file) if (!capable(CAP_SYS_ADMIN)) return -EPERM; - if (test_and_set_bit(0, &buffer_opened)) + if (test_and_set_bit_lock(0, &buffer_opened)) return -EBUSY; /* Register as a user of dcookies @@ -129,7 +129,7 @@ static int event_buffer_open(struct inode *inode, struct file *file) fail: dcookie_unregister(file->private_data); out: - clear_bit(0, &buffer_opened); + __clear_bit_unlock(0, &buffer_opened); return err; } @@ -141,7 +141,7 @@ static int event_buffer_release(struct inode *inode, struct file *file) dcookie_unregister(file->private_data); buffer_pos = 0; atomic_set(&buffer_ready, 0); - clear_bit(0, &buffer_opened); + __clear_bit_unlock(0, &buffer_opened); return 0; } diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c index 110022d7868..5d72866897a 100644 --- a/drivers/pci/pci-sysfs.c +++ b/drivers/pci/pci-sysfs.c @@ -575,7 +575,7 @@ static int pci_mmap_fits(struct pci_dev *pdev, int resno, struct vm_area_struct nr = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT; start = vma->vm_pgoff; - size = pci_resource_len(pdev, resno) >> PAGE_SHIFT; + size = ((pci_resource_len(pdev, resno) - 1) >> PAGE_SHIFT) + 1; if (start < size && size - start >= nr) return 1; WARN(1, "process \"%s\" tried to map 0x%08lx-0x%08lx on %s BAR %d (size 0x%08lx)\n", diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index bbf66ea8fd8..5049a47030a 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -1692,24 +1692,24 @@ static void __devinit quirk_brcm_570x_limit_vpd(struct pci_dev *dev) } } -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, - PCI_DEVICE_ID_NX2_5706, - quirk_brcm_570x_limit_vpd); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, - PCI_DEVICE_ID_NX2_5706S, - quirk_brcm_570x_limit_vpd); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, - PCI_DEVICE_ID_NX2_5708, - quirk_brcm_570x_limit_vpd); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, - PCI_DEVICE_ID_NX2_5708S, - quirk_brcm_570x_limit_vpd); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, - PCI_DEVICE_ID_NX2_5709, - quirk_brcm_570x_limit_vpd); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_BROADCOM, - PCI_DEVICE_ID_NX2_5709S, - quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5706, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5706S, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5708, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5708S, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5709, + quirk_brcm_570x_limit_vpd); +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_BROADCOM, + PCI_DEVICE_ID_NX2_5709S, + quirk_brcm_570x_limit_vpd); #ifdef CONFIG_PCI_MSI /* Some chipsets do not support MSI. We cannot easily rely on setting diff --git a/drivers/pci/rom.c b/drivers/pci/rom.c index 1f5f6143f35..132a78159b6 100644 --- a/drivers/pci/rom.c +++ b/drivers/pci/rom.c @@ -100,7 +100,8 @@ size_t pci_get_rom_size(void __iomem *rom, size_t size) * pci_map_rom - map a PCI ROM to kernel space * @pdev: pointer to pci device struct * @size: pointer to receive size of pci window over ROM - * @return: kernel virtual pointer to image of ROM + * + * Return: kernel virtual pointer to image of ROM * * Map a PCI ROM into kernel space. If ROM is boot video ROM, * the shadow BIOS copy will be returned instead of the @@ -167,7 +168,8 @@ void __iomem *pci_map_rom(struct pci_dev *pdev, size_t *size) * pci_map_rom_copy - map a PCI ROM to kernel space, create a copy * @pdev: pointer to pci device struct * @size: pointer to receive size of pci window over ROM - * @return: kernel virtual pointer to image of ROM + * + * Return: kernel virtual pointer to image of ROM * * Map a PCI ROM into kernel space. If ROM is boot video ROM, * the shadow BIOS copy will be returned instead of the diff --git a/drivers/ps3/ps3-lpm.c b/drivers/ps3/ps3-lpm.c index 85edf945ab8..204158cf7a5 100644 --- a/drivers/ps3/ps3-lpm.c +++ b/drivers/ps3/ps3-lpm.c @@ -22,6 +22,7 @@ #include <linux/module.h> #include <linux/interrupt.h> #include <linux/uaccess.h> +#include <asm/smp.h> #include <asm/time.h> #include <asm/ps3.h> #include <asm/lv1call.h> diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig index 4dada6ee111..39360e2a454 100644 --- a/drivers/regulator/Kconfig +++ b/drivers/regulator/Kconfig @@ -1,6 +1,4 @@ -menu "Voltage and Current regulators" - -config REGULATOR +menuconfig REGULATOR bool "Voltage and Current Regulator Support" default n help @@ -23,21 +21,20 @@ config REGULATOR If unsure, say no. +if REGULATOR + config REGULATOR_DEBUG bool "Regulator debug support" - depends on REGULATOR help Say yes here to enable debugging support. config REGULATOR_FIXED_VOLTAGE tristate default n - select REGULATOR config REGULATOR_VIRTUAL_CONSUMER tristate "Virtual regulator consumer support" default n - select REGULATOR help This driver provides a virtual consumer for the voltage and current regulator API which provides sysfs controls for @@ -49,7 +46,6 @@ config REGULATOR_VIRTUAL_CONSUMER config REGULATOR_BQ24022 tristate "TI bq24022 Dual Input 1-Cell Li-Ion Charger IC" default n - select REGULATOR help This driver controls a TI bq24022 Charger attached via GPIOs. The provided current regulator can enable/disable @@ -59,7 +55,6 @@ config REGULATOR_BQ24022 config REGULATOR_WM8350 tristate "Wolfson Microelectroncis WM8350 AudioPlus PMIC" depends on MFD_WM8350 - select REGULATOR help This driver provides support for the voltage and current regulators of the WM8350 AudioPlus PMIC. @@ -67,7 +62,6 @@ config REGULATOR_WM8350 config REGULATOR_WM8400 tristate "Wolfson Microelectroncis WM8400 AudioPlus PMIC" depends on MFD_WM8400 - select REGULATOR help This driver provides support for the voltage regulators of the WM8400 AudioPlus PMIC. @@ -75,9 +69,8 @@ config REGULATOR_WM8400 config REGULATOR_DA903X tristate "Support regulators on Dialog Semiconductor DA9030/DA9034 PMIC" depends on PMIC_DA903X - select REGULATOR help Say y here to support the BUCKs and LDOs regulators found on Dialog Semiconductor DA9030/DA9034 PMIC. -endmenu +endif diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 7af60b98d8a..a04c1b6b157 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -271,7 +271,7 @@ int rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm) dev_dbg(&rtc->dev, "alarm rollover: %s\n", "year"); do { alarm->time.tm_year++; - } while (!rtc_valid_tm(&alarm->time)); + } while (rtc_valid_tm(&alarm->time) != 0); break; default: diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c index 5549231179a..6cf8e282338 100644 --- a/drivers/rtc/rtc-cmos.c +++ b/drivers/rtc/rtc-cmos.c @@ -794,7 +794,7 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq) goto cleanup2; } - pr_info("%s: alarms up to one %s%s, %zd bytes nvram, %s irqs\n", + pr_info("%s: alarms up to one %s%s, %zd bytes nvram%s\n", cmos_rtc.rtc->dev.bus_id, is_valid_irq(rtc_irq) ? (cmos_rtc.mon_alrm diff --git a/drivers/serial/atmel_serial.c b/drivers/serial/atmel_serial.c index 61fb8b6d19a..d5efd6c7790 100644 --- a/drivers/serial/atmel_serial.c +++ b/drivers/serial/atmel_serial.c @@ -1258,6 +1258,8 @@ static void __devinit atmel_init_port(struct atmel_uart_port *atmel_port, atmel_port->clk = clk_get(&pdev->dev, "usart"); clk_enable(atmel_port->clk); port->uartclk = clk_get_rate(atmel_port->clk); + clk_disable(atmel_port->clk); + /* only enable clock when USART is in use */ } atmel_port->use_dma_rx = data->use_dma_rx; @@ -1379,6 +1381,8 @@ static int __init atmel_console_setup(struct console *co, char *options) return -ENODEV; } + clk_enable(atmel_ports[co->index].clk); + UART_PUT_IDR(port, -1); UART_PUT_CR(port, ATMEL_US_RSTSTA | ATMEL_US_RSTRX); UART_PUT_CR(port, ATMEL_US_TXEN | ATMEL_US_RXEN); @@ -1403,7 +1407,7 @@ static struct console atmel_console = { .data = &atmel_uart, }; -#define ATMEL_CONSOLE_DEVICE &atmel_console +#define ATMEL_CONSOLE_DEVICE (&atmel_console) /* * Early console initialization (before VM subsystem initialized). @@ -1534,6 +1538,15 @@ static int __devinit atmel_serial_probe(struct platform_device *pdev) if (ret) goto err_add_port; + if (atmel_is_console_port(&port->uart) + && ATMEL_CONSOLE_DEVICE->flags & CON_ENABLED) { + /* + * The serial core enabled the clock for us, so undo + * the clk_enable() in atmel_console_setup() + */ + clk_disable(port->clk); + } + device_init_wakeup(&pdev->dev, 1); platform_set_drvdata(pdev, port); @@ -1544,7 +1557,6 @@ err_add_port: port->rx_ring.buf = NULL; err_alloc_ring: if (!atmel_is_console_port(&port->uart)) { - clk_disable(port->clk); clk_put(port->clk); port->clk = NULL; } @@ -1568,7 +1580,6 @@ static int __devexit atmel_serial_remove(struct platform_device *pdev) /* "port" is allocated statically, so we shouldn't free it */ - clk_disable(atmel_port->clk); clk_put(atmel_port->clk); return ret; diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig index e1654f59eb7..0a49cd788a7 100644 --- a/drivers/staging/Kconfig +++ b/drivers/staging/Kconfig @@ -21,7 +21,23 @@ menuconfig STAGING If in doubt, say N here. -if STAGING + +config STAGING_EXCLUDE_BUILD + bool "Exclude Staging drivers from being built" + default y + ---help--- + Are you sure you really want to build the staging drivers? + They taint your kernel, don't live up to the normal Linux + kernel quality standards, are a bit crufty around the edges, + and might go off and kick your dog when you aren't paying + attention. + + Say N here to be able to select and build the Staging drivers. + This option is primarily here to prevent them from being built + when selecting 'make allyesconfg' and 'make allmodconfig' so + don't be all that put off, your dog will be just fine. + +if !STAGING_EXCLUDE_BUILD source "drivers/staging/et131x/Kconfig" @@ -45,4 +61,4 @@ source "drivers/staging/at76_usb/Kconfig" source "drivers/staging/poch/Kconfig" -endif # STAGING +endif # !STAGING_EXCLUDE_BUILD diff --git a/drivers/staging/usbip/Kconfig b/drivers/staging/usbip/Kconfig index 7426235ccc4..217fb7e62c2 100644 --- a/drivers/staging/usbip/Kconfig +++ b/drivers/staging/usbip/Kconfig @@ -1,6 +1,6 @@ config USB_IP_COMMON tristate "USB IP support (EXPERIMENTAL)" - depends on USB && EXPERIMENTAL + depends on USB && NET && EXPERIMENTAL default N ---help--- This enables pushing USB packets over IP to allow remote diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index 0f13448c6f7..3f3ce13fef4 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -2083,6 +2083,38 @@ config FB_METRONOME controller. The pre-release name for this device was 8track and could also have been called by some vendors as PVI-nnnn. +config FB_MB862XX + tristate "Fujitsu MB862xx GDC support" + depends on FB + select FB_CFB_FILLRECT + select FB_CFB_COPYAREA + select FB_CFB_IMAGEBLIT + ---help--- + Frame buffer driver for Fujitsu Carmine/Coral-P(A)/Lime controllers. + +config FB_MB862XX_PCI_GDC + bool "Carmine/Coral-P(A) GDC" + depends on PCI && FB_MB862XX + ---help--- + This enables framebuffer support for Fujitsu Carmine/Coral-P(A) + PCI graphics controller devices. + +config FB_MB862XX_LIME + bool "Lime GDC" + depends on FB_MB862XX + depends on OF && !FB_MB862XX_PCI_GDC + select FB_FOREIGN_ENDIAN + select FB_LITTLE_ENDIAN + ---help--- + Framebuffer support for Fujitsu Lime GDC on host CPU bus. + +config FB_PRE_INIT_FB + bool "Don't reinitialize, use bootloader's GDC/Display configuration" + depends on FB_MB862XX_LIME + ---help--- + Select this option if display contents should be inherited as set by + the bootloader. + source "drivers/video/omap/Kconfig" source "drivers/video/backlight/Kconfig" diff --git a/drivers/video/Makefile b/drivers/video/Makefile index 248bddc8d0b..e39e33e797d 100644 --- a/drivers/video/Makefile +++ b/drivers/video/Makefile @@ -122,6 +122,7 @@ obj-$(CONFIG_FB_SH_MOBILE_LCDC) += sh_mobile_lcdcfb.o obj-$(CONFIG_FB_OMAP) += omap/ obj-$(CONFIG_XEN_FBDEV_FRONTEND) += xen-fbfront.o obj-$(CONFIG_FB_CARMINE) += carminefb.o +obj-$(CONFIG_FB_MB862XX) += mb862xx/ # Platform or fallback drivers go here obj-$(CONFIG_FB_UVESA) += uvesafb.o diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 6048b55f287..1d5ae39cb27 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1002,13 +1002,9 @@ fb_blank(struct fb_info *info, int blank) return ret; } -static long -fb_ioctl(struct file *file, unsigned int cmd, - unsigned long arg) +static long do_fb_ioctl(struct fb_info *info, unsigned int cmd, + unsigned long arg) { - struct inode *inode = file->f_path.dentry->d_inode; - int fbidx = iminor(inode); - struct fb_info *info; struct fb_ops *fb; struct fb_var_screeninfo var; struct fb_fix_screeninfo fix; @@ -1018,14 +1014,10 @@ fb_ioctl(struct file *file, unsigned int cmd, void __user *argp = (void __user *)arg; long ret = 0; - info = registered_fb[fbidx]; - mutex_lock(&info->lock); fb = info->fbops; - - if (!fb) { - mutex_unlock(&info->lock); + if (!fb) return -ENODEV; - } + switch (cmd) { case FBIOGET_VSCREENINFO: ret = copy_to_user(argp, &info->var, @@ -1126,6 +1118,21 @@ fb_ioctl(struct file *file, unsigned int cmd, else ret = fb->fb_ioctl(info, cmd, arg); } + return ret; +} + +static long fb_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +__acquires(&info->lock) +__releases(&info->lock) +{ + struct inode *inode = file->f_path.dentry->d_inode; + int fbidx = iminor(inode); + struct fb_info *info; + long ret; + + info = registered_fb[fbidx]; + mutex_lock(&info->lock); + ret = do_fb_ioctl(info, cmd, arg); mutex_unlock(&info->lock); return ret; } @@ -1157,8 +1164,8 @@ struct fb_cmap32 { compat_caddr_t transp; }; -static int fb_getput_cmap(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static int fb_getput_cmap(struct fb_info *info, unsigned int cmd, + unsigned long arg) { struct fb_cmap_user __user *cmap; struct fb_cmap32 __user *cmap32; @@ -1181,7 +1188,7 @@ static int fb_getput_cmap(struct inode *inode, struct file *file, put_user(compat_ptr(data), &cmap->transp)) return -EFAULT; - err = fb_ioctl(file, cmd, (unsigned long) cmap); + err = do_fb_ioctl(info, cmd, (unsigned long) cmap); if (!err) { if (copy_in_user(&cmap32->start, @@ -1223,8 +1230,8 @@ static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix, return err; } -static int fb_get_fscreeninfo(struct inode *inode, struct file *file, - unsigned int cmd, unsigned long arg) +static int fb_get_fscreeninfo(struct fb_info *info, unsigned int cmd, + unsigned long arg) { mm_segment_t old_fs; struct fb_fix_screeninfo fix; @@ -1235,7 +1242,7 @@ static int fb_get_fscreeninfo(struct inode *inode, struct file *file, old_fs = get_fs(); set_fs(KERNEL_DS); - err = fb_ioctl(file, cmd, (unsigned long) &fix); + err = do_fb_ioctl(info, cmd, (unsigned long) &fix); set_fs(old_fs); if (!err) @@ -1244,8 +1251,10 @@ static int fb_get_fscreeninfo(struct inode *inode, struct file *file, return err; } -static long -fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +static long fb_compat_ioctl(struct file *file, unsigned int cmd, + unsigned long arg) +__acquires(&info->lock) +__releases(&info->lock) { struct inode *inode = file->f_path.dentry->d_inode; int fbidx = iminor(inode); @@ -1262,16 +1271,16 @@ fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) case FBIOPUT_CON2FBMAP: arg = (unsigned long) compat_ptr(arg); case FBIOBLANK: - mutex_unlock(&info->lock); - return fb_ioctl(file, cmd, arg); + ret = do_fb_ioctl(info, cmd, arg); + break; case FBIOGET_FSCREENINFO: - ret = fb_get_fscreeninfo(inode, file, cmd, arg); + ret = fb_get_fscreeninfo(info, cmd, arg); break; case FBIOGETCMAP: case FBIOPUTCMAP: - ret = fb_getput_cmap(inode, file, cmd, arg); + ret = fb_getput_cmap(info, cmd, arg); break; default: @@ -1286,6 +1295,8 @@ fb_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg) static int fb_mmap(struct file *file, struct vm_area_struct * vma) +__acquires(&info->lock) +__releases(&info->lock) { int fbidx = iminor(file->f_path.dentry->d_inode); struct fb_info *info = registered_fb[fbidx]; @@ -1339,6 +1350,8 @@ fb_mmap(struct file *file, struct vm_area_struct * vma) static int fb_open(struct inode *inode, struct file *file) +__acquires(&info->lock) +__releases(&info->lock) { int fbidx = iminor(inode); struct fb_info *info; @@ -1374,6 +1387,8 @@ out: static int fb_release(struct inode *inode, struct file *file) +__acquires(&info->lock) +__releases(&info->lock) { struct fb_info * const info = file->private_data; diff --git a/drivers/video/mb862xx/Makefile b/drivers/video/mb862xx/Makefile new file mode 100644 index 00000000000..07664814bb1 --- /dev/null +++ b/drivers/video/mb862xx/Makefile @@ -0,0 +1,5 @@ +# +# Makefile for the MB862xx framebuffer driver +# + +obj-$(CONFIG_FB_MB862XX) := mb862xxfb.o diff --git a/drivers/video/mb862xx/mb862xx_reg.h b/drivers/video/mb862xx/mb862xx_reg.h new file mode 100644 index 00000000000..2ba65e11850 --- /dev/null +++ b/drivers/video/mb862xx/mb862xx_reg.h @@ -0,0 +1,138 @@ +/* + * Fujitsu MB862xx Graphics Controller Registers/Bits + */ + +#ifndef _MB862XX_REG_H +#define _MB862XX_REG_H + +#ifdef MB862XX_MMIO_BOTTOM +#define MB862XX_MMIO_BASE 0x03fc0000 +#else +#define MB862XX_MMIO_BASE 0x01fc0000 +#endif +#define MB862XX_I2C_BASE 0x0000c000 +#define MB862XX_DISP_BASE 0x00010000 +#define MB862XX_CAP_BASE 0x00018000 +#define MB862XX_DRAW_BASE 0x00030000 +#define MB862XX_GEO_BASE 0x00038000 +#define MB862XX_PIO_BASE 0x00038000 +#define MB862XX_MMIO_SIZE 0x40000 + +/* Host interface/pio registers */ +#define GC_IST 0x00000020 +#define GC_IMASK 0x00000024 +#define GC_SRST 0x0000002c +#define GC_CCF 0x00000038 +#define GC_CID 0x000000f0 +#define GC_REVISION 0x00000084 + +#define GC_CCF_CGE_100 0x00000000 +#define GC_CCF_CGE_133 0x00040000 +#define GC_CCF_CGE_166 0x00080000 +#define GC_CCF_COT_100 0x00000000 +#define GC_CCF_COT_133 0x00010000 +#define GC_CID_CNAME_MSK 0x0000ff00 +#define GC_CID_VERSION_MSK 0x000000ff + +/* define enabled interrupts hereby */ +#define GC_INT_EN 0x00000000 + +/* Memory interface mode register */ +#define GC_MMR 0x0000fffc + +/* Display Controller registers */ +#define GC_DCM0 0x00000000 +#define GC_HTP 0x00000004 +#define GC_HDB_HDP 0x00000008 +#define GC_VSW_HSW_HSP 0x0000000c +#define GC_VTR 0x00000010 +#define GC_VDP_VSP 0x00000014 +#define GC_WY_WX 0x00000018 +#define GC_WH_WW 0x0000001c +#define GC_L0M 0x00000020 +#define GC_L0OA0 0x00000024 +#define GC_L0DA0 0x00000028 +#define GC_L0DY_L0DX 0x0000002c +#define GC_DCM1 0x00000100 +#define GC_L0EM 0x00000110 +#define GC_L0WY_L0WX 0x00000114 +#define GC_L0WH_L0WW 0x00000118 +#define GC_DCM2 0x00000104 +#define GC_DCM3 0x00000108 +#define GC_CPM_CUTC 0x000000a0 +#define GC_CUOA0 0x000000a4 +#define GC_CUY0_CUX0 0x000000a8 +#define GC_CUOA1 0x000000ac +#define GC_CUY1_CUX1 0x000000b0 +#define GC_L0PAL0 0x00000400 + +#define GC_CPM_CEN0 0x00100000 +#define GC_CPM_CEN1 0x00200000 + +#define GC_DCM01_ESY 0x00000004 +#define GC_DCM01_SC 0x00003f00 +#define GC_DCM01_RESV 0x00004000 +#define GC_DCM01_CKS 0x00008000 +#define GC_DCM01_L0E 0x00010000 +#define GC_DCM01_DEN 0x80000000 +#define GC_L0M_L0C_8 0x00000000 +#define GC_L0M_L0C_16 0x80000000 +#define GC_L0EM_L0EC_24 0x40000000 +#define GC_L0M_L0W_UNIT 64 + +#define GC_DISP_REFCLK_400 400 + +/* Carmine specific */ +#define MB86297_DRAW_BASE 0x00020000 +#define MB86297_DISP0_BASE 0x00100000 +#define MB86297_DISP1_BASE 0x00140000 +#define MB86297_WRBACK_BASE 0x00180000 +#define MB86297_CAP0_BASE 0x00200000 +#define MB86297_CAP1_BASE 0x00280000 +#define MB86297_DRAMCTRL_BASE 0x00300000 +#define MB86297_CTRL_BASE 0x00400000 +#define MB86297_I2C_BASE 0x00500000 + +#define GC_CTRL_STATUS 0x00000000 +#define GC_CTRL_INT_MASK 0x00000004 +#define GC_CTRL_CLK_ENABLE 0x0000000c +#define GC_CTRL_SOFT_RST 0x00000010 + +#define GC_CTRL_CLK_EN_DRAM 0x00000001 +#define GC_CTRL_CLK_EN_2D3D 0x00000002 +#define GC_CTRL_CLK_EN_DISP0 0x00000020 +#define GC_CTRL_CLK_EN_DISP1 0x00000040 + +#define GC_2D3D_REV 0x000004b4 +#define GC_RE_REVISION 0x24240200 + +/* define enabled interrupts hereby */ +#define GC_CARMINE_INT_EN 0x00000004 + +/* DRAM controller */ +#define GC_DCTL_MODE_ADD 0x00000000 +#define GC_DCTL_SETTIME1_EMODE 0x00000004 +#define GC_DCTL_REFRESH_SETTIME2 0x00000008 +#define GC_DCTL_RSV0_STATES 0x0000000C +#define GC_DCTL_RSV2_RSV1 0x00000010 +#define GC_DCTL_DDRIF2_DDRIF1 0x00000014 +#define GC_DCTL_IOCONT1_IOCONT0 0x00000024 + +#define GC_DCTL_STATES_MSK 0x0000000f +#define GC_DCTL_INIT_WAIT_CNT 3000 +#define GC_DCTL_INIT_WAIT_INTERVAL 1 + +/* DRAM ctrl values for Carmine PCI Eval. board */ +#define GC_EVB_DCTL_MODE_ADD 0x012105c3 +#define GC_EVB_DCTL_MODE_ADD_AFT_RST 0x002105c3 +#define GC_EVB_DCTL_SETTIME1_EMODE 0x47498000 +#define GC_EVB_DCTL_REFRESH_SETTIME2 0x00422a22 +#define GC_EVB_DCTL_RSV0_STATES 0x00200003 +#define GC_EVB_DCTL_RSV0_STATES_AFT_RST 0x00200002 +#define GC_EVB_DCTL_RSV2_RSV1 0x0000000f +#define GC_EVB_DCTL_DDRIF2_DDRIF1 0x00556646 +#define GC_EVB_DCTL_IOCONT1_IOCONT0 0x05550555 + +#define GC_DISP_REFCLK_533 533 + +#endif diff --git a/drivers/video/mb862xx/mb862xxfb.c b/drivers/video/mb862xx/mb862xxfb.c new file mode 100644 index 00000000000..38718d95fbb --- /dev/null +++ b/drivers/video/mb862xx/mb862xxfb.c @@ -0,0 +1,1061 @@ +/* + * drivers/mb862xx/mb862xxfb.c + * + * Fujitsu Carmine/Coral-P(A)/Lime framebuffer driver + * + * (C) 2008 Anatolij Gustschin <agust@denx.de> + * DENX Software Engineering + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#undef DEBUG + +#include <linux/fb.h> +#include <linux/delay.h> +#include <linux/init.h> +#include <linux/interrupt.h> +#include <linux/pci.h> +#if defined(CONFIG_PPC_OF) +#include <linux/of_platform.h> +#endif +#include "mb862xxfb.h" +#include "mb862xx_reg.h" + +#define NR_PALETTE 256 +#define MB862XX_MEM_SIZE 0x1000000 +#define CORALP_MEM_SIZE 0x4000000 +#define CARMINE_MEM_SIZE 0x8000000 +#define DRV_NAME "mb862xxfb" + +#if defined(CONFIG_LWMON5) +static struct mb862xx_gc_mode lwmon5_gc_mode = { + /* Mode for Sharp LQ104V1DG61 TFT LCD Panel */ + { "640x480", 60, 640, 480, 40000, 48, 16, 32, 11, 96, 2, 0, 0, 0 }, + /* 16 bits/pixel, 32MB, 100MHz, SDRAM memory mode value */ + 16, 0x2000000, GC_CCF_COT_100, 0x414fb7f2 +}; +#endif + +#if defined(CONFIG_SOCRATES) +static struct mb862xx_gc_mode socrates_gc_mode = { + /* Mode for Prime View PM070WL4 TFT LCD Panel */ + { "800x480", 45, 800, 480, 40000, 86, 42, 33, 10, 128, 2, 0, 0, 0 }, + /* 16 bits/pixel, 16MB, 133MHz, SDRAM memory mode value */ + 16, 0x1000000, GC_CCF_COT_133, 0x4157ba63 +}; +#endif + +/* Helpers */ +static inline int h_total(struct fb_var_screeninfo *var) +{ + return var->xres + var->left_margin + + var->right_margin + var->hsync_len; +} + +static inline int v_total(struct fb_var_screeninfo *var) +{ + return var->yres + var->upper_margin + + var->lower_margin + var->vsync_len; +} + +static inline int hsp(struct fb_var_screeninfo *var) +{ + return var->xres + var->right_margin - 1; +} + +static inline int vsp(struct fb_var_screeninfo *var) +{ + return var->yres + var->lower_margin - 1; +} + +static inline int d_pitch(struct fb_var_screeninfo *var) +{ + return var->xres * var->bits_per_pixel / 8; +} + +static inline unsigned int chan_to_field(unsigned int chan, + struct fb_bitfield *bf) +{ + chan &= 0xffff; + chan >>= 16 - bf->length; + return chan << bf->offset; +} + +static int mb862xxfb_setcolreg(unsigned regno, + unsigned red, unsigned green, unsigned blue, + unsigned transp, struct fb_info *info) +{ + struct mb862xxfb_par *par = info->par; + unsigned int val; + + switch (info->fix.visual) { + case FB_VISUAL_TRUECOLOR: + if (regno < 16) { + val = chan_to_field(red, &info->var.red); + val |= chan_to_field(green, &info->var.green); + val |= chan_to_field(blue, &info->var.blue); + par->pseudo_palette[regno] = val; + } + break; + case FB_VISUAL_PSEUDOCOLOR: + if (regno < 256) { + val = (red >> 8) << 16; + val |= (green >> 8) << 8; + val |= blue >> 8; + outreg(disp, GC_L0PAL0 + (regno * 4), val); + } + break; + default: + return 1; /* unsupported type */ + } + return 0; +} + +static int mb862xxfb_check_var(struct fb_var_screeninfo *var, + struct fb_info *fbi) +{ + unsigned long tmp; + + if (fbi->dev) + dev_dbg(fbi->dev, "%s\n", __func__); + + /* check if these values fit into the registers */ + if (var->hsync_len > 255 || var->vsync_len > 255) + return -EINVAL; + + if ((var->xres + var->right_margin) >= 4096) + return -EINVAL; + + if ((var->yres + var->lower_margin) > 4096) + return -EINVAL; + + if (h_total(var) > 4096 || v_total(var) > 4096) + return -EINVAL; + + if (var->xres_virtual > 4096 || var->yres_virtual > 4096) + return -EINVAL; + + if (var->bits_per_pixel <= 8) + var->bits_per_pixel = 8; + else if (var->bits_per_pixel <= 16) + var->bits_per_pixel = 16; + else if (var->bits_per_pixel <= 32) + var->bits_per_pixel = 32; + + /* + * can cope with 8,16 or 24/32bpp if resulting + * pitch is divisible by 64 without remainder + */ + if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT) { + int r; + + var->bits_per_pixel = 0; + do { + var->bits_per_pixel += 8; + r = d_pitch(&fbi->var) % GC_L0M_L0W_UNIT; + } while (r && var->bits_per_pixel <= 32); + + if (d_pitch(&fbi->var) % GC_L0M_L0W_UNIT) + return -EINVAL; + } + + /* line length is going to be 128 bit aligned */ + tmp = (var->xres * var->bits_per_pixel) / 8; + if ((tmp & 15) != 0) + return -EINVAL; + + /* set r/g/b positions and validate bpp */ + switch (var->bits_per_pixel) { + case 8: + var->red.length = var->bits_per_pixel; + var->green.length = var->bits_per_pixel; + var->blue.length = var->bits_per_pixel; + var->red.offset = 0; + var->green.offset = 0; + var->blue.offset = 0; + var->transp.length = 0; + break; + case 16: + var->red.length = 5; + var->green.length = 5; + var->blue.length = 5; + var->red.offset = 10; + var->green.offset = 5; + var->blue.offset = 0; + var->transp.length = 0; + break; + case 24: + case 32: + var->transp.length = 8; + var->red.length = 8; + var->green.length = 8; + var->blue.length = 8; + var->transp.offset = 24; + var->red.offset = 16; + var->green.offset = 8; + var->blue.offset = 0; + break; + default: + return -EINVAL; + } + return 0; +} + +/* + * set display parameters + */ +static int mb862xxfb_set_par(struct fb_info *fbi) +{ + struct mb862xxfb_par *par = fbi->par; + unsigned long reg, sc; + + dev_dbg(par->dev, "%s\n", __func__); + + if (par->pre_init) + return 0; + + /* disp off */ + reg = inreg(disp, GC_DCM1); + reg &= ~GC_DCM01_DEN; + outreg(disp, GC_DCM1, reg); + + /* set display reference clock div. */ + sc = par->refclk / (1000000 / fbi->var.pixclock) - 1; + reg = inreg(disp, GC_DCM1); + reg &= ~(GC_DCM01_CKS | GC_DCM01_RESV | GC_DCM01_SC); + reg |= sc << 8; + outreg(disp, GC_DCM1, reg); + dev_dbg(par->dev, "SC 0x%lx\n", sc); + + /* disp dimension, format */ + reg = pack(d_pitch(&fbi->var) / GC_L0M_L0W_UNIT, + (fbi->var.yres - 1)); + if (fbi->var.bits_per_pixel == 16) + reg |= GC_L0M_L0C_16; + outreg(disp, GC_L0M, reg); + + if (fbi->var.bits_per_pixel == 32) { + reg = inreg(disp, GC_L0EM); + outreg(disp, GC_L0EM, reg | GC_L0EM_L0EC_24); + } + outreg(disp, GC_WY_WX, 0); + reg = pack(fbi->var.yres - 1, fbi->var.xres); + outreg(disp, GC_WH_WW, reg); + outreg(disp, GC_L0OA0, 0); + outreg(disp, GC_L0DA0, 0); + outreg(disp, GC_L0DY_L0DX, 0); + outreg(disp, GC_L0WY_L0WX, 0); + outreg(disp, GC_L0WH_L0WW, reg); + + /* both HW-cursors off */ + reg = inreg(disp, GC_CPM_CUTC); + reg &= ~(GC_CPM_CEN0 | GC_CPM_CEN1); + outreg(disp, GC_CPM_CUTC, reg); + + /* timings */ + reg = pack(fbi->var.xres - 1, fbi->var.xres - 1); + outreg(disp, GC_HDB_HDP, reg); + reg = pack((fbi->var.yres - 1), vsp(&fbi->var)); + outreg(disp, GC_VDP_VSP, reg); + reg = ((fbi->var.vsync_len - 1) << 24) | + pack((fbi->var.hsync_len - 1), hsp(&fbi->var)); + outreg(disp, GC_VSW_HSW_HSP, reg); + outreg(disp, GC_HTP, pack(h_total(&fbi->var) - 1, 0)); + outreg(disp, GC_VTR, pack(v_total(&fbi->var) - 1, 0)); + + /* display on */ + reg = inreg(disp, GC_DCM1); + reg |= GC_DCM01_DEN | GC_DCM01_L0E; + reg &= ~GC_DCM01_ESY; + outreg(disp, GC_DCM1, reg); + return 0; +} + +static int mb862xxfb_pan(struct fb_var_screeninfo *var, + struct fb_info *info) +{ + struct mb862xxfb_par *par = info->par; + unsigned long reg; + + reg = pack(var->yoffset, var->xoffset); + outreg(disp, GC_L0WY_L0WX, reg); + + reg = pack(var->yres_virtual, var->xres_virtual); + outreg(disp, GC_L0WH_L0WW, reg); + return 0; +} + +static int mb862xxfb_blank(int mode, struct fb_info *fbi) +{ + struct mb862xxfb_par *par = fbi->par; + unsigned long reg; + + dev_dbg(fbi->dev, "blank mode=%d\n", mode); + + switch (mode) { + case FB_BLANK_POWERDOWN: + reg = inreg(disp, GC_DCM1); + reg &= ~GC_DCM01_DEN; + outreg(disp, GC_DCM1, reg); + break; + case FB_BLANK_UNBLANK: + reg = inreg(disp, GC_DCM1); + reg |= GC_DCM01_DEN; + outreg(disp, GC_DCM1, reg); + break; + case FB_BLANK_NORMAL: + case FB_BLANK_VSYNC_SUSPEND: + case FB_BLANK_HSYNC_SUSPEND: + default: + return 1; + } + return 0; +} + +/* framebuffer ops */ +static struct fb_ops mb862xxfb_ops = { + .owner = THIS_MODULE, + .fb_check_var = mb862xxfb_check_var, + .fb_set_par = mb862xxfb_set_par, + .fb_setcolreg = mb862xxfb_setcolreg, + .fb_blank = mb862xxfb_blank, + .fb_pan_display = mb862xxfb_pan, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, +}; + +/* initialize fb_info data */ +static int mb862xxfb_init_fbinfo(struct fb_info *fbi) +{ + struct mb862xxfb_par *par = fbi->par; + struct mb862xx_gc_mode *mode = par->gc_mode; + unsigned long reg; + + fbi->fbops = &mb862xxfb_ops; + fbi->pseudo_palette = par->pseudo_palette; + fbi->screen_base = par->fb_base; + fbi->screen_size = par->mapped_vram; + + strcpy(fbi->fix.id, DRV_NAME); + fbi->fix.smem_start = (unsigned long)par->fb_base_phys; + fbi->fix.smem_len = par->mapped_vram; + fbi->fix.mmio_start = (unsigned long)par->mmio_base_phys; + fbi->fix.mmio_len = par->mmio_len; + fbi->fix.accel = FB_ACCEL_NONE; + fbi->fix.type = FB_TYPE_PACKED_PIXELS; + fbi->fix.type_aux = 0; + fbi->fix.xpanstep = 1; + fbi->fix.ypanstep = 1; + fbi->fix.ywrapstep = 0; + + reg = inreg(disp, GC_DCM1); + if (reg & GC_DCM01_DEN && reg & GC_DCM01_L0E) { + /* get the disp mode from active display cfg */ + unsigned long sc = ((reg & GC_DCM01_SC) >> 8) + 1; + unsigned long hsp, vsp, ht, vt; + + dev_dbg(par->dev, "using bootloader's disp. mode\n"); + fbi->var.pixclock = (sc * 1000000) / par->refclk; + fbi->var.xres = (inreg(disp, GC_HDB_HDP) & 0x0fff) + 1; + reg = inreg(disp, GC_VDP_VSP); + fbi->var.yres = ((reg >> 16) & 0x0fff) + 1; + vsp = (reg & 0x0fff) + 1; + fbi->var.xres_virtual = fbi->var.xres; + fbi->var.yres_virtual = fbi->var.yres; + reg = inreg(disp, GC_L0EM); + if (reg & GC_L0EM_L0EC_24) { + fbi->var.bits_per_pixel = 32; + } else { + reg = inreg(disp, GC_L0M); + if (reg & GC_L0M_L0C_16) + fbi->var.bits_per_pixel = 16; + else + fbi->var.bits_per_pixel = 8; + } + reg = inreg(disp, GC_VSW_HSW_HSP); + fbi->var.hsync_len = ((reg & 0xff0000) >> 16) + 1; + fbi->var.vsync_len = ((reg & 0x3f000000) >> 24) + 1; + hsp = (reg & 0xffff) + 1; + ht = ((inreg(disp, GC_HTP) & 0xfff0000) >> 16) + 1; + fbi->var.right_margin = hsp - fbi->var.xres; + fbi->var.left_margin = ht - hsp - fbi->var.hsync_len; + vt = ((inreg(disp, GC_VTR) & 0xfff0000) >> 16) + 1; + fbi->var.lower_margin = vsp - fbi->var.yres; + fbi->var.upper_margin = vt - vsp - fbi->var.vsync_len; + } else if (mode) { + dev_dbg(par->dev, "using supplied mode\n"); + fb_videomode_to_var(&fbi->var, (struct fb_videomode *)mode); + fbi->var.bits_per_pixel = mode->def_bpp ? mode->def_bpp : 8; + } else { + int ret; + + ret = fb_find_mode(&fbi->var, fbi, "640x480-16@60", + NULL, 0, NULL, 16); + if (ret == 0 || ret == 4) { + dev_err(par->dev, + "failed to get initial mode\n"); + return -EINVAL; + } + } + + fbi->var.xoffset = 0; + fbi->var.yoffset = 0; + fbi->var.grayscale = 0; + fbi->var.nonstd = 0; + fbi->var.height = -1; + fbi->var.width = -1; + fbi->var.accel_flags = 0; + fbi->var.vmode = FB_VMODE_NONINTERLACED; + fbi->var.activate = FB_ACTIVATE_NOW; + fbi->flags = FBINFO_DEFAULT | +#ifdef __BIG_ENDIAN + FBINFO_FOREIGN_ENDIAN | +#endif + FBINFO_HWACCEL_XPAN | + FBINFO_HWACCEL_YPAN; + + /* check and possibly fix bpp */ + if ((fbi->fbops->fb_check_var)(&fbi->var, fbi)) + dev_err(par->dev, "check_var() failed on initial setup?\n"); + + fbi->fix.visual = fbi->var.bits_per_pixel == 8 ? + FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; + fbi->fix.line_length = (fbi->var.xres_virtual * + fbi->var.bits_per_pixel) / 8; + return 0; +} + +/* + * show some display controller and cursor registers + */ +static ssize_t mb862xxfb_show_dispregs(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct fb_info *fbi = dev_get_drvdata(dev); + struct mb862xxfb_par *par = fbi->par; + char *ptr = buf; + unsigned int reg; + + for (reg = GC_DCM0; reg <= GC_L0DY_L0DX; reg += 4) + ptr += sprintf(ptr, "%08x = %08x\n", + reg, inreg(disp, reg)); + + for (reg = GC_CPM_CUTC; reg <= GC_CUY1_CUX1; reg += 4) + ptr += sprintf(ptr, "%08x = %08x\n", + reg, inreg(disp, reg)); + + for (reg = GC_DCM1; reg <= GC_L0WH_L0WW; reg += 4) + ptr += sprintf(ptr, "%08x = %08x\n", + reg, inreg(disp, reg)); + + return ptr - buf; +} + +static DEVICE_ATTR(dispregs, 0444, mb862xxfb_show_dispregs, NULL); + +irqreturn_t mb862xx_intr(int irq, void *dev_id) +{ + struct mb862xxfb_par *par = (struct mb862xxfb_par *) dev_id; + unsigned long reg_ist, mask; + + if (!par) + return IRQ_NONE; + + if (par->type == BT_CARMINE) { + /* Get Interrupt Status */ + reg_ist = inreg(ctrl, GC_CTRL_STATUS); + mask = inreg(ctrl, GC_CTRL_INT_MASK); + if (reg_ist == 0) + return IRQ_HANDLED; + + reg_ist &= mask; + if (reg_ist == 0) + return IRQ_HANDLED; + + /* Clear interrupt status */ + outreg(ctrl, 0x0, reg_ist); + } else { + /* Get status */ + reg_ist = inreg(host, GC_IST); + mask = inreg(host, GC_IMASK); + + reg_ist &= mask; + if (reg_ist == 0) + return IRQ_HANDLED; + + /* Clear status */ + outreg(host, GC_IST, ~reg_ist); + } + return IRQ_HANDLED; +} + +#if defined(CONFIG_FB_MB862XX_LIME) +/* + * GDC (Lime, Coral(B/Q), Mint, ...) on host bus + */ +static int mb862xx_gdc_init(struct mb862xxfb_par *par) +{ + unsigned long ccf, mmr; + unsigned long ver, rev; + + if (!par) + return -ENODEV; + +#if defined(CONFIG_FB_PRE_INIT_FB) + par->pre_init = 1; +#endif + par->host = par->mmio_base; + par->i2c = par->mmio_base + MB862XX_I2C_BASE; + par->disp = par->mmio_base + MB862XX_DISP_BASE; + par->cap = par->mmio_base + MB862XX_CAP_BASE; + par->draw = par->mmio_base + MB862XX_DRAW_BASE; + par->geo = par->mmio_base + MB862XX_GEO_BASE; + par->pio = par->mmio_base + MB862XX_PIO_BASE; + + par->refclk = GC_DISP_REFCLK_400; + + ver = inreg(host, GC_CID); + rev = inreg(pio, GC_REVISION); + if ((ver == 0x303) && (rev & 0xffffff00) == 0x20050100) { + dev_info(par->dev, "Fujitsu Lime v1.%d found\n", + (int)rev & 0xff); + par->type = BT_LIME; + ccf = par->gc_mode ? par->gc_mode->ccf : GC_CCF_COT_100; + mmr = par->gc_mode ? par->gc_mode->mmr : 0x414fb7f2; + } else { + dev_info(par->dev, "? GDC, CID/Rev.: 0x%lx/0x%lx \n", ver, rev); + return -ENODEV; + } + + if (!par->pre_init) { + outreg(host, GC_CCF, ccf); + udelay(200); + outreg(host, GC_MMR, mmr); + udelay(10); + } + + /* interrupt status */ + outreg(host, GC_IST, 0); + outreg(host, GC_IMASK, GC_INT_EN); + return 0; +} + +static int __devinit of_platform_mb862xx_probe(struct of_device *ofdev, + const struct of_device_id *id) +{ + struct device_node *np = ofdev->node; + struct device *dev = &ofdev->dev; + struct mb862xxfb_par *par; + struct fb_info *info; + struct resource res; + resource_size_t res_size; + unsigned long ret = -ENODEV; + + if (of_address_to_resource(np, 0, &res)) { + dev_err(dev, "Invalid address\n"); + return -ENXIO; + } + + info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev); + if (info == NULL) { + dev_err(dev, "cannot allocate framebuffer\n"); + return -ENOMEM; + } + + par = info->par; + par->info = info; + par->dev = dev; + + par->irq = irq_of_parse_and_map(np, 0); + if (par->irq == NO_IRQ) { + dev_err(dev, "failed to map irq\n"); + ret = -ENODEV; + goto fbrel; + } + + res_size = 1 + res.end - res.start; + par->res = request_mem_region(res.start, res_size, DRV_NAME); + if (par->res == NULL) { + dev_err(dev, "Cannot claim framebuffer/mmio\n"); + ret = -ENXIO; + goto irqdisp; + } + +#if defined(CONFIG_LWMON5) + par->gc_mode = &lwmon5_gc_mode; +#endif + +#if defined(CONFIG_SOCRATES) + par->gc_mode = &socrates_gc_mode; +#endif + + par->fb_base_phys = res.start; + par->mmio_base_phys = res.start + MB862XX_MMIO_BASE; + par->mmio_len = MB862XX_MMIO_SIZE; + if (par->gc_mode) + par->mapped_vram = par->gc_mode->max_vram; + else + par->mapped_vram = MB862XX_MEM_SIZE; + + par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram); + if (par->fb_base == NULL) { + dev_err(dev, "Cannot map framebuffer\n"); + goto rel_reg; + } + + par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len); + if (par->mmio_base == NULL) { + dev_err(dev, "Cannot map registers\n"); + goto fb_unmap; + } + + dev_dbg(dev, "fb phys 0x%llx 0x%lx\n", + (u64)par->fb_base_phys, (ulong)par->mapped_vram); + dev_dbg(dev, "mmio phys 0x%llx 0x%lx, (irq = %d)\n", + (u64)par->mmio_base_phys, (ulong)par->mmio_len, par->irq); + + if (mb862xx_gdc_init(par)) + goto io_unmap; + + if (request_irq(par->irq, mb862xx_intr, IRQF_DISABLED, + DRV_NAME, (void *)par)) { + dev_err(dev, "Cannot request irq\n"); + goto io_unmap; + } + + mb862xxfb_init_fbinfo(info); + + if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) { + dev_err(dev, "Could not allocate cmap for fb_info.\n"); + goto free_irq; + } + + if ((info->fbops->fb_set_par)(info)) + dev_err(dev, "set_var() failed on initial setup?\n"); + + if (register_framebuffer(info)) { + dev_err(dev, "failed to register framebuffer\n"); + goto rel_cmap; + } + + dev_set_drvdata(dev, info); + + if (device_create_file(dev, &dev_attr_dispregs)) + dev_err(dev, "Can't create sysfs regdump file\n"); + return 0; + +rel_cmap: + fb_dealloc_cmap(&info->cmap); +free_irq: + outreg(host, GC_IMASK, 0); + free_irq(par->irq, (void *)par); +io_unmap: + iounmap(par->mmio_base); +fb_unmap: + iounmap(par->fb_base); +rel_reg: + release_mem_region(res.start, res_size); +irqdisp: + irq_dispose_mapping(par->irq); +fbrel: + dev_set_drvdata(dev, NULL); + framebuffer_release(info); + return ret; +} + +static int __devexit of_platform_mb862xx_remove(struct of_device *ofdev) +{ + struct fb_info *fbi = dev_get_drvdata(&ofdev->dev); + struct mb862xxfb_par *par = fbi->par; + resource_size_t res_size = 1 + par->res->end - par->res->start; + unsigned long reg; + + dev_dbg(fbi->dev, "%s release\n", fbi->fix.id); + + /* display off */ + reg = inreg(disp, GC_DCM1); + reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E); + outreg(disp, GC_DCM1, reg); + + /* disable interrupts */ + outreg(host, GC_IMASK, 0); + + free_irq(par->irq, (void *)par); + irq_dispose_mapping(par->irq); + + device_remove_file(&ofdev->dev, &dev_attr_dispregs); + + unregister_framebuffer(fbi); + fb_dealloc_cmap(&fbi->cmap); + + iounmap(par->mmio_base); + iounmap(par->fb_base); + + dev_set_drvdata(&ofdev->dev, NULL); + release_mem_region(par->res->start, res_size); + framebuffer_release(fbi); + return 0; +} + +/* + * common types + */ +static struct of_device_id __devinitdata of_platform_mb862xx_tbl[] = { + { .compatible = "fujitsu,MB86276", }, + { .compatible = "fujitsu,lime", }, + { .compatible = "fujitsu,MB86277", }, + { .compatible = "fujitsu,mint", }, + { .compatible = "fujitsu,MB86293", }, + { .compatible = "fujitsu,MB86294", }, + { .compatible = "fujitsu,coral", }, + { /* end */ } +}; + +static struct of_platform_driver of_platform_mb862xxfb_driver = { + .owner = THIS_MODULE, + .name = DRV_NAME, + .match_table = of_platform_mb862xx_tbl, + .probe = of_platform_mb862xx_probe, + .remove = __devexit_p(of_platform_mb862xx_remove), +}; +#endif + +#if defined(CONFIG_FB_MB862XX_PCI_GDC) +static int coralp_init(struct mb862xxfb_par *par) +{ + int cn, ver; + + par->host = par->mmio_base; + par->i2c = par->mmio_base + MB862XX_I2C_BASE; + par->disp = par->mmio_base + MB862XX_DISP_BASE; + par->cap = par->mmio_base + MB862XX_CAP_BASE; + par->draw = par->mmio_base + MB862XX_DRAW_BASE; + par->geo = par->mmio_base + MB862XX_GEO_BASE; + par->pio = par->mmio_base + MB862XX_PIO_BASE; + + par->refclk = GC_DISP_REFCLK_400; + + ver = inreg(host, GC_CID); + cn = (ver & GC_CID_CNAME_MSK) >> 8; + ver = ver & GC_CID_VERSION_MSK; + if (cn == 3) { + dev_info(par->dev, "Fujitsu Coral-%s GDC Rev.%d found\n",\ + (ver == 6) ? "P" : (ver == 8) ? "PA" : "?", + par->pdev->revision); + outreg(host, GC_CCF, GC_CCF_CGE_166 | GC_CCF_COT_133); + udelay(200); + outreg(host, GC_MMR, GC_MMR_CORALP_EVB_VAL); + udelay(10); + /* Clear interrupt status */ + outreg(host, GC_IST, 0); + } else { + return -ENODEV; + } + return 0; +} + +static int init_dram_ctrl(struct mb862xxfb_par *par) +{ + unsigned long i = 0; + + /* + * Set io mode first! Spec. says IC may be destroyed + * if not set to SSTL2/LVCMOS before init. + */ + outreg(dram_ctrl, GC_DCTL_IOCONT1_IOCONT0, GC_EVB_DCTL_IOCONT1_IOCONT0); + + /* DRAM init */ + outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD); + outreg(dram_ctrl, GC_DCTL_SETTIME1_EMODE, GC_EVB_DCTL_SETTIME1_EMODE); + outreg(dram_ctrl, GC_DCTL_REFRESH_SETTIME2, + GC_EVB_DCTL_REFRESH_SETTIME2); + outreg(dram_ctrl, GC_DCTL_RSV2_RSV1, GC_EVB_DCTL_RSV2_RSV1); + outreg(dram_ctrl, GC_DCTL_DDRIF2_DDRIF1, GC_EVB_DCTL_DDRIF2_DDRIF1); + outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES); + + /* DLL reset done? */ + while ((inreg(dram_ctrl, GC_DCTL_RSV0_STATES) & GC_DCTL_STATES_MSK)) { + udelay(GC_DCTL_INIT_WAIT_INTERVAL); + if (i++ > GC_DCTL_INIT_WAIT_CNT) { + dev_err(par->dev, "VRAM init failed.\n"); + return -EINVAL; + } + } + outreg(dram_ctrl, GC_DCTL_MODE_ADD, GC_EVB_DCTL_MODE_ADD_AFT_RST); + outreg(dram_ctrl, GC_DCTL_RSV0_STATES, GC_EVB_DCTL_RSV0_STATES_AFT_RST); + return 0; +} + +static int carmine_init(struct mb862xxfb_par *par) +{ + unsigned long reg; + + par->ctrl = par->mmio_base + MB86297_CTRL_BASE; + par->i2c = par->mmio_base + MB86297_I2C_BASE; + par->disp = par->mmio_base + MB86297_DISP0_BASE; + par->disp1 = par->mmio_base + MB86297_DISP1_BASE; + par->cap = par->mmio_base + MB86297_CAP0_BASE; + par->cap1 = par->mmio_base + MB86297_CAP1_BASE; + par->draw = par->mmio_base + MB86297_DRAW_BASE; + par->dram_ctrl = par->mmio_base + MB86297_DRAMCTRL_BASE; + par->wrback = par->mmio_base + MB86297_WRBACK_BASE; + + par->refclk = GC_DISP_REFCLK_533; + + /* warm up */ + reg = GC_CTRL_CLK_EN_DRAM | GC_CTRL_CLK_EN_2D3D | GC_CTRL_CLK_EN_DISP0; + outreg(ctrl, GC_CTRL_CLK_ENABLE, reg); + + /* check for engine module revision */ + if (inreg(draw, GC_2D3D_REV) == GC_RE_REVISION) + dev_info(par->dev, "Fujitsu Carmine GDC Rev.%d found\n", + par->pdev->revision); + else + goto err_init; + + reg &= ~GC_CTRL_CLK_EN_2D3D; + outreg(ctrl, GC_CTRL_CLK_ENABLE, reg); + + /* set up vram */ + if (init_dram_ctrl(par) < 0) + goto err_init; + + outreg(ctrl, GC_CTRL_INT_MASK, 0); + return 0; + +err_init: + outreg(ctrl, GC_CTRL_CLK_ENABLE, 0); + return -EINVAL; +} + +static inline int mb862xx_pci_gdc_init(struct mb862xxfb_par *par) +{ + switch (par->type) { + case BT_CORALP: + return coralp_init(par); + case BT_CARMINE: + return carmine_init(par); + default: + return -ENODEV; + } +} + +#define CHIP_ID(id) \ + { PCI_DEVICE(PCI_VENDOR_ID_FUJITSU_LIMITED, id) } + +static struct pci_device_id mb862xx_pci_tbl[] __devinitdata = { + /* MB86295/MB86296 */ + CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALP), + CHIP_ID(PCI_DEVICE_ID_FUJITSU_CORALPA), + /* MB86297 */ + CHIP_ID(PCI_DEVICE_ID_FUJITSU_CARMINE), + { 0, } +}; + +MODULE_DEVICE_TABLE(pci, mb862xx_pci_tbl); + +static int __devinit mb862xx_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct mb862xxfb_par *par; + struct fb_info *info; + struct device *dev = &pdev->dev; + int ret; + + ret = pci_enable_device(pdev); + if (ret < 0) { + dev_err(dev, "Cannot enable PCI device\n"); + goto out; + } + + info = framebuffer_alloc(sizeof(struct mb862xxfb_par), dev); + if (!info) { + dev_err(dev, "framebuffer alloc failed\n"); + ret = -ENOMEM; + goto dis_dev; + } + + par = info->par; + par->info = info; + par->dev = dev; + par->pdev = pdev; + par->irq = pdev->irq; + + ret = pci_request_regions(pdev, DRV_NAME); + if (ret < 0) { + dev_err(dev, "Cannot reserve region(s) for PCI device\n"); + goto rel_fb; + } + + switch (pdev->device) { + case PCI_DEVICE_ID_FUJITSU_CORALP: + case PCI_DEVICE_ID_FUJITSU_CORALPA: + par->fb_base_phys = pci_resource_start(par->pdev, 0); + par->mapped_vram = CORALP_MEM_SIZE; + par->mmio_base_phys = par->fb_base_phys + MB862XX_MMIO_BASE; + par->mmio_len = MB862XX_MMIO_SIZE; + par->type = BT_CORALP; + break; + case PCI_DEVICE_ID_FUJITSU_CARMINE: + par->fb_base_phys = pci_resource_start(par->pdev, 2); + par->mmio_base_phys = pci_resource_start(par->pdev, 3); + par->mmio_len = pci_resource_len(par->pdev, 3); + par->mapped_vram = CARMINE_MEM_SIZE; + par->type = BT_CARMINE; + break; + default: + /* should never occur */ + goto rel_reg; + } + + par->fb_base = ioremap(par->fb_base_phys, par->mapped_vram); + if (par->fb_base == NULL) { + dev_err(dev, "Cannot map framebuffer\n"); + goto rel_reg; + } + + par->mmio_base = ioremap(par->mmio_base_phys, par->mmio_len); + if (par->mmio_base == NULL) { + dev_err(dev, "Cannot map registers\n"); + ret = -EIO; + goto fb_unmap; + } + + dev_dbg(dev, "fb phys 0x%llx 0x%lx\n", + (u64)par->fb_base_phys, (ulong)par->mapped_vram); + dev_dbg(dev, "mmio phys 0x%llx 0x%lx\n", + (u64)par->mmio_base_phys, (ulong)par->mmio_len); + + if (mb862xx_pci_gdc_init(par)) + goto io_unmap; + + if (request_irq(par->irq, mb862xx_intr, IRQF_DISABLED | IRQF_SHARED, + DRV_NAME, (void *)par)) { + dev_err(dev, "Cannot request irq\n"); + goto io_unmap; + } + + mb862xxfb_init_fbinfo(info); + + if (fb_alloc_cmap(&info->cmap, NR_PALETTE, 0) < 0) { + dev_err(dev, "Could not allocate cmap for fb_info.\n"); + ret = -ENOMEM; + goto free_irq; + } + + if ((info->fbops->fb_set_par)(info)) + dev_err(dev, "set_var() failed on initial setup?\n"); + + ret = register_framebuffer(info); + if (ret < 0) { + dev_err(dev, "failed to register framebuffer\n"); + goto rel_cmap; + } + + pci_set_drvdata(pdev, info); + + if (device_create_file(dev, &dev_attr_dispregs)) + dev_err(dev, "Can't create sysfs regdump file\n"); + + if (par->type == BT_CARMINE) + outreg(ctrl, GC_CTRL_INT_MASK, GC_CARMINE_INT_EN); + else + outreg(host, GC_IMASK, GC_INT_EN); + + return 0; + +rel_cmap: + fb_dealloc_cmap(&info->cmap); +free_irq: + free_irq(par->irq, (void *)par); +io_unmap: + iounmap(par->mmio_base); +fb_unmap: + iounmap(par->fb_base); +rel_reg: + pci_release_regions(pdev); +rel_fb: + framebuffer_release(info); +dis_dev: + pci_disable_device(pdev); +out: + return ret; +} + +static void __devexit mb862xx_pci_remove(struct pci_dev *pdev) +{ + struct fb_info *fbi = pci_get_drvdata(pdev); + struct mb862xxfb_par *par = fbi->par; + unsigned long reg; + + dev_dbg(fbi->dev, "%s release\n", fbi->fix.id); + + /* display off */ + reg = inreg(disp, GC_DCM1); + reg &= ~(GC_DCM01_DEN | GC_DCM01_L0E); + outreg(disp, GC_DCM1, reg); + + if (par->type == BT_CARMINE) { + outreg(ctrl, GC_CTRL_INT_MASK, 0); + outreg(ctrl, GC_CTRL_CLK_ENABLE, 0); + } else { + outreg(host, GC_IMASK, 0); + } + + device_remove_file(&pdev->dev, &dev_attr_dispregs); + + pci_set_drvdata(pdev, NULL); + unregister_framebuffer(fbi); + fb_dealloc_cmap(&fbi->cmap); + + free_irq(par->irq, (void *)par); + iounmap(par->mmio_base); + iounmap(par->fb_base); + + pci_release_regions(pdev); + framebuffer_release(fbi); + pci_disable_device(pdev); +} + +static struct pci_driver mb862xxfb_pci_driver = { + .name = DRV_NAME, + .id_table = mb862xx_pci_tbl, + .probe = mb862xx_pci_probe, + .remove = __devexit_p(mb862xx_pci_remove), +}; +#endif + +static int __devinit mb862xxfb_init(void) +{ + int ret = -ENODEV; + +#if defined(CONFIG_FB_MB862XX_LIME) + ret = of_register_platform_driver(&of_platform_mb862xxfb_driver); +#endif +#if defined(CONFIG_FB_MB862XX_PCI_GDC) + ret = pci_register_driver(&mb862xxfb_pci_driver); +#endif + return ret; +} + +static void __exit mb862xxfb_exit(void) +{ +#if defined(CONFIG_FB_MB862XX_LIME) + of_unregister_platform_driver(&of_platform_mb862xxfb_driver); +#endif +#if defined(CONFIG_FB_MB862XX_PCI_GDC) + pci_unregister_driver(&mb862xxfb_pci_driver); +#endif +} + +module_init(mb862xxfb_init); +module_exit(mb862xxfb_exit); + +MODULE_DESCRIPTION("Fujitsu MB862xx Framebuffer driver"); +MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/video/mb862xx/mb862xxfb.h b/drivers/video/mb862xx/mb862xxfb.h new file mode 100644 index 00000000000..c4c8f4dd221 --- /dev/null +++ b/drivers/video/mb862xx/mb862xxfb.h @@ -0,0 +1,83 @@ +#ifndef __MB862XX_H__ +#define __MB862XX_H__ + +#define PCI_VENDOR_ID_FUJITSU_LIMITED 0x10cf +#define PCI_DEVICE_ID_FUJITSU_CORALP 0x2019 +#define PCI_DEVICE_ID_FUJITSU_CORALPA 0x201e +#define PCI_DEVICE_ID_FUJITSU_CARMINE 0x202b + +#define GC_MMR_CORALP_EVB_VAL 0x11d7fa13 + +enum gdctype { + BT_NONE, + BT_LIME, + BT_MINT, + BT_CORAL, + BT_CORALP, + BT_CARMINE, +}; + +struct mb862xx_gc_mode { + struct fb_videomode def_mode; /* mode of connected display */ + unsigned int def_bpp; /* default depth */ + unsigned long max_vram; /* connected SDRAM size */ + unsigned long ccf; /* gdc clk */ + unsigned long mmr; /* memory mode for SDRAM */ +}; + +/* private data */ +struct mb862xxfb_par { + struct fb_info *info; /* fb info head */ + struct device *dev; + struct pci_dev *pdev; + struct resource *res; /* framebuffer/mmio resource */ + + resource_size_t fb_base_phys; /* fb base, 36-bit PPC440EPx */ + resource_size_t mmio_base_phys; /* io base addr */ + void __iomem *fb_base; /* remapped framebuffer */ + void __iomem *mmio_base; /* remapped registers */ + size_t mapped_vram; /* length of remapped vram */ + size_t mmio_len; /* length of register region */ + + void __iomem *host; /* relocatable reg. bases */ + void __iomem *i2c; + void __iomem *disp; + void __iomem *disp1; + void __iomem *cap; + void __iomem *cap1; + void __iomem *draw; + void __iomem *geo; + void __iomem *pio; + void __iomem *ctrl; + void __iomem *dram_ctrl; + void __iomem *wrback; + + unsigned int irq; + unsigned int type; /* GDC type */ + unsigned int refclk; /* disp. reference clock */ + struct mb862xx_gc_mode *gc_mode; /* GDC mode init data */ + int pre_init; /* don't init display if 1 */ + + u32 pseudo_palette[16]; +}; + +#if defined(CONFIG_FB_MB862XX_LIME) && defined(CONFIG_FB_MB862XX_PCI_GDC) +#error "Select Lime GDC or CoralP/Carmine support, but not both together" +#endif +#if defined(CONFIG_FB_MB862XX_LIME) +#define gdc_read __raw_readl +#define gdc_write __raw_writel +#else +#define gdc_read readl +#define gdc_write writel +#endif + +#define inreg(type, off) \ + gdc_read((par->type + (off))) + +#define outreg(type, off, val) \ + gdc_write((val), (par->type + (off))) + +#define pack(a, b) (((a) << 16) | (b)) + +#endif diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig index 1a22fe782a2..4fd3fa5546b 100644 --- a/drivers/watchdog/Kconfig +++ b/drivers/watchdog/Kconfig @@ -67,11 +67,11 @@ config AT91RM9200_WATCHDOG system when the timeout is reached. config AT91SAM9X_WATCHDOG - tristate "AT91SAM9X watchdog" - depends on WATCHDOG && (ARCH_AT91SAM9260 || ARCH_AT91SAM9261) + tristate "AT91SAM9X / AT91CAP9 watchdog" + depends on ARCH_AT91 && !ARCH_AT91RM9200 help - Watchdog timer embedded into AT91SAM9X chips. This will reboot your - system when the timeout is reached. + Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will + reboot your system when the timeout is reached. config 21285_WATCHDOG tristate "DC21285 watchdog" diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c index b4babfc3158..b1da287f90e 100644 --- a/drivers/watchdog/at91sam9_wdt.c +++ b/drivers/watchdog/at91sam9_wdt.c @@ -30,7 +30,7 @@ #include <linux/bitops.h> #include <linux/uaccess.h> -#include <asm/arch/at91_wdt.h> +#include <mach/at91_wdt.h> #define DRV_NAME "AT91SAM9 Watchdog" diff --git a/fs/Makefile b/fs/Makefile index 2168c902d5c..d9f8afe6f0c 100644 --- a/fs/Makefile +++ b/fs/Makefile @@ -81,8 +81,6 @@ obj-$(CONFIG_HUGETLBFS) += hugetlbfs/ obj-$(CONFIG_CODA_FS) += coda/ obj-$(CONFIG_MINIX_FS) += minix/ obj-$(CONFIG_FAT_FS) += fat/ -obj-$(CONFIG_MSDOS_FS) += msdos/ -obj-$(CONFIG_VFAT_FS) += vfat/ obj-$(CONFIG_BFS_FS) += bfs/ obj-$(CONFIG_ISO9660_FS) += isofs/ obj-$(CONFIG_HFSPLUS_FS) += hfsplus/ # Before hfs to find wrapped HFS+ diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c index 625abf5422e..33bf8cbfd05 100644 --- a/fs/autofs4/dev-ioctl.c +++ b/fs/autofs4/dev-ioctl.c @@ -128,9 +128,10 @@ static inline void free_dev_ioctl(struct autofs_dev_ioctl *param) */ static int validate_dev_ioctl(int cmd, struct autofs_dev_ioctl *param) { - int err = -EINVAL; + int err; - if (check_dev_ioctl_version(cmd, param)) { + err = check_dev_ioctl_version(cmd, param); + if (err) { AUTOFS_WARN("invalid device control module version " "supplied for cmd(0x%08x)", cmd); goto out; diff --git a/fs/autofs4/expire.c b/fs/autofs4/expire.c index cde2f8e8935..4b6fb3f628c 100644 --- a/fs/autofs4/expire.c +++ b/fs/autofs4/expire.c @@ -56,12 +56,23 @@ static int autofs4_mount_busy(struct vfsmount *mnt, struct dentry *dentry) mntget(mnt); dget(dentry); - if (!autofs4_follow_mount(&mnt, &dentry)) + if (!follow_down(&mnt, &dentry)) goto done; - /* This is an autofs submount, we can't expire it */ - if (is_autofs4_dentry(dentry)) - goto done; + if (is_autofs4_dentry(dentry)) { + struct autofs_sb_info *sbi = autofs4_sbi(dentry->d_sb); + + /* This is an autofs submount, we can't expire it */ + if (sbi->type == AUTOFS_TYPE_INDIRECT) + goto done; + + /* + * Otherwise it's an offset mount and we need to check + * if we can umount its mount, if there is one. + */ + if (!d_mountpoint(dentry)) + goto done; + } /* Update the expiry counter if fs is busy */ if (!may_umount_tree(mnt)) { diff --git a/fs/block_dev.c b/fs/block_dev.c index 88a776fa0ef..db831efbdbb 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -986,7 +986,6 @@ static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part); static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) { struct gendisk *disk; - struct hd_struct *part = NULL; int ret; int partno; int perm = 0; @@ -1004,24 +1003,25 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) return ret; } - ret = -ENXIO; - lock_kernel(); + ret = -ENXIO; disk = get_gendisk(bdev->bd_dev, &partno); if (!disk) goto out_unlock_kernel; - part = disk_get_part(disk, partno); - if (!part) - goto out_unlock_kernel; mutex_lock_nested(&bdev->bd_mutex, for_part); if (!bdev->bd_openers) { bdev->bd_disk = disk; - bdev->bd_part = part; bdev->bd_contains = bdev; if (!partno) { struct backing_dev_info *bdi; + + ret = -ENXIO; + bdev->bd_part = disk_get_part(disk, partno); + if (!bdev->bd_part) + goto out_clear; + if (disk->fops->open) { ret = disk->fops->open(bdev, mode); if (ret) @@ -1049,18 +1049,17 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) bdev->bd_contains = whole; bdev->bd_inode->i_data.backing_dev_info = whole->bd_inode->i_data.backing_dev_info; + bdev->bd_part = disk_get_part(disk, partno); if (!(disk->flags & GENHD_FL_UP) || - !part || !part->nr_sects) { + !bdev->bd_part || !bdev->bd_part->nr_sects) { ret = -ENXIO; goto out_clear; } - bd_set_size(bdev, (loff_t)part->nr_sects << 9); + bd_set_size(bdev, (loff_t)bdev->bd_part->nr_sects << 9); } } else { - disk_put_part(part); put_disk(disk); module_put(disk->fops->owner); - part = NULL; disk = NULL; if (bdev->bd_contains == bdev) { if (bdev->bd_disk->fops->open) { @@ -1080,6 +1079,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) return 0; out_clear: + disk_put_part(bdev->bd_part); bdev->bd_disk = NULL; bdev->bd_part = NULL; bdev->bd_inode->i_data.backing_dev_info = &default_backing_dev_info; @@ -1091,7 +1091,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) out_unlock_kernel: unlock_kernel(); - disk_put_part(part); if (disk) module_put(disk->fops->owner); put_disk(disk); diff --git a/fs/ext3/super.c b/fs/ext3/super.c index e5717a4fae6..5dec6d1356c 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -2390,13 +2390,12 @@ static void ext3_write_super (struct super_block * sb) static int ext3_sync_fs(struct super_block *sb, int wait) { - tid_t target; - sb->s_dirt = 0; - if (journal_start_commit(EXT3_SB(sb)->s_journal, &target)) { - if (wait) - log_wait_commit(EXT3_SB(sb)->s_journal, target); - } + if (wait) + ext3_force_commit(sb); + else + journal_start_commit(EXT3_SB(sb)->s_journal, NULL); + return 0; } diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c index fe34d74cfb1..2a117e286e5 100644 --- a/fs/ext4/ialloc.c +++ b/fs/ext4/ialloc.c @@ -718,6 +718,8 @@ got: gdp->bg_flags &= cpu_to_le16(~EXT4_BG_BLOCK_UNINIT); free = ext4_free_blocks_after_init(sb, group, gdp); gdp->bg_free_blocks_count = cpu_to_le16(free); + gdp->bg_checksum = ext4_group_desc_csum(sbi, group, + gdp); } spin_unlock(sb_bgl_lock(sbi, group)); diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 8dbf6953845..be21a5ae33c 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -2329,6 +2329,8 @@ static int ext4_da_writepage(struct page *page, unlock_page(page); return 0; } + /* now mark the buffer_heads as dirty and uptodate */ + block_commit_write(page, 0, PAGE_CACHE_SIZE); } if (test_opt(inode->i_sb, NOBH) && ext4_should_writeback_data(inode)) @@ -4580,9 +4582,10 @@ static int ext4_indirect_trans_blocks(struct inode *inode, int nrblocks, static int ext4_index_trans_blocks(struct inode *inode, int nrblocks, int chunk) { if (!(EXT4_I(inode)->i_flags & EXT4_EXTENTS_FL)) - return ext4_indirect_trans_blocks(inode, nrblocks, 0); - return ext4_ext_index_trans_blocks(inode, nrblocks, 0); + return ext4_indirect_trans_blocks(inode, nrblocks, chunk); + return ext4_ext_index_trans_blocks(inode, nrblocks, chunk); } + /* * Account for index blocks, block groups bitmaps and block group * descriptor blocks if modify datablocks and index blocks diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c index dfe17a13405..444ad998f72 100644 --- a/fs/ext4/mballoc.c +++ b/fs/ext4/mballoc.c @@ -4441,6 +4441,7 @@ ext4_mb_free_metadata(handle_t *handle, struct ext4_buddy *e4b, else if (block >= (entry->start_blk + entry->count)) n = &(*n)->rb_right; else { + ext4_unlock_group(sb, group); ext4_error(sb, __func__, "Double free of blocks %d (%d %d)\n", block, entry->start_blk, entry->count); diff --git a/fs/ext4/super.c b/fs/ext4/super.c index 994859df010..e4a241c65db 100644 --- a/fs/ext4/super.c +++ b/fs/ext4/super.c @@ -1458,9 +1458,8 @@ static int ext4_fill_flex_info(struct super_block *sb) /* We allocate both existing and potentially added groups */ flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) + - ((sbi->s_es->s_reserved_gdt_blocks +1 ) << - EXT4_DESC_PER_BLOCK_BITS(sb))) / - groups_per_flex; + ((le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) + 1) << + EXT4_DESC_PER_BLOCK_BITS(sb))) / groups_per_flex; sbi->s_flex_groups = kzalloc(flex_group_count * sizeof(struct flex_groups), GFP_KERNEL); if (sbi->s_flex_groups == NULL) { @@ -2885,12 +2884,9 @@ int ext4_force_commit(struct super_block *sb) /* * Ext4 always journals updates to the superblock itself, so we don't * have to propagate any other updates to the superblock on disk at this - * point. Just start an async writeback to get the buffers on their way - * to the disk. - * - * This implicitly triggers the writebehind on sync(). + * point. (We can probably nuke this function altogether, and remove + * any mention to sb->s_dirt in all of fs/ext4; eventual cleanup...) */ - static void ext4_write_super(struct super_block *sb) { if (mutex_trylock(&sb->s_lock) != 0) @@ -2900,15 +2896,15 @@ static void ext4_write_super(struct super_block *sb) static int ext4_sync_fs(struct super_block *sb, int wait) { - tid_t target; + int ret = 0; trace_mark(ext4_sync_fs, "dev %s wait %d", sb->s_id, wait); sb->s_dirt = 0; - if (jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, &target)) { - if (wait) - jbd2_log_wait_commit(EXT4_SB(sb)->s_journal, target); - } - return 0; + if (wait) + ret = ext4_force_commit(sb); + else + jbd2_journal_start_commit(EXT4_SB(sb)->s_journal, NULL); + return ret; } /* diff --git a/fs/fat/Makefile b/fs/fat/Makefile index bfb5f06cf2c..e06190322c1 100644 --- a/fs/fat/Makefile +++ b/fs/fat/Makefile @@ -3,5 +3,9 @@ # obj-$(CONFIG_FAT_FS) += fat.o +obj-$(CONFIG_VFAT_FS) += vfat.o +obj-$(CONFIG_MSDOS_FS) += msdos.o -fat-objs := cache.o dir.o fatent.o file.o inode.o misc.o +fat-y := cache.o dir.o fatent.o file.o inode.o misc.o +vfat-y := namei_vfat.o +msdos-y := namei_msdos.o diff --git a/fs/fat/cache.c b/fs/fat/cache.c index 3222f51c41c..b4260229808 100644 --- a/fs/fat/cache.c +++ b/fs/fat/cache.c @@ -9,8 +9,8 @@ */ #include <linux/fs.h> -#include <linux/msdos_fs.h> #include <linux/buffer_head.h> +#include "fat.h" /* this must be > 0. */ #define FAT_MAX_CACHE 8 @@ -293,10 +293,12 @@ static int fat_bmap_cluster(struct inode *inode, int cluster) } int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys, - unsigned long *mapped_blocks) + unsigned long *mapped_blocks, int create) { struct super_block *sb = inode->i_sb; struct msdos_sb_info *sbi = MSDOS_SB(sb); + const unsigned long blocksize = sb->s_blocksize; + const unsigned char blocksize_bits = sb->s_blocksize_bits; sector_t last_block; int cluster, offset; @@ -309,10 +311,21 @@ int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys, } return 0; } - last_block = (MSDOS_I(inode)->mmu_private + (sb->s_blocksize - 1)) - >> sb->s_blocksize_bits; - if (sector >= last_block) - return 0; + + last_block = (i_size_read(inode) + (blocksize - 1)) >> blocksize_bits; + if (sector >= last_block) { + if (!create) + return 0; + + /* + * ->mmu_private can access on only allocation path. + * (caller must hold ->i_mutex) + */ + last_block = (MSDOS_I(inode)->mmu_private + (blocksize - 1)) + >> blocksize_bits; + if (sector >= last_block) + return 0; + } cluster = sector >> (sbi->cluster_bits - sb->s_blocksize_bits); offset = sector & (sbi->sec_per_clus - 1); diff --git a/fs/fat/dir.c b/fs/fat/dir.c index bae1c329252..67e05835709 100644 --- a/fs/fat/dir.c +++ b/fs/fat/dir.c @@ -16,11 +16,11 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/time.h> -#include <linux/msdos_fs.h> #include <linux/smp_lock.h> #include <linux/buffer_head.h> #include <linux/compat.h> #include <asm/uaccess.h> +#include "fat.h" static inline loff_t fat_make_i_pos(struct super_block *sb, struct buffer_head *bh, @@ -77,7 +77,7 @@ next: *bh = NULL; iblock = *pos >> sb->s_blocksize_bits; - err = fat_bmap(dir, iblock, &phys, &mapped_blocks); + err = fat_bmap(dir, iblock, &phys, &mapped_blocks, 0); if (err || !phys) return -1; /* beyond EOF or error */ @@ -86,7 +86,7 @@ next: *bh = sb_bread(sb, phys); if (*bh == NULL) { printk(KERN_ERR "FAT: Directory bread(block %llu) failed\n", - (unsigned long long)phys); + (llu)phys); /* skip this block */ *pos = (iblock + 1) << sb->s_blocksize_bits; goto next; @@ -373,9 +373,10 @@ parse_record: if (de->attr == ATTR_EXT) { int status = fat_parse_long(inode, &cpos, &bh, &de, &unicode, &nr_slots); - if (status < 0) - return status; - else if (status == PARSE_INVALID) + if (status < 0) { + err = status; + goto end_of_dir; + } else if (status == PARSE_INVALID) continue; else if (status == PARSE_NOT_LONGNAME) goto parse_record; @@ -832,6 +833,7 @@ static long fat_compat_dir_ioctl(struct file *filp, unsigned cmd, #endif /* CONFIG_COMPAT */ const struct file_operations fat_dir_operations = { + .llseek = generic_file_llseek, .read = generic_read_dir, .readdir = fat_readdir, .ioctl = fat_dir_ioctl, @@ -1089,6 +1091,7 @@ int fat_alloc_new_dir(struct inode *dir, struct timespec *ts) struct msdos_dir_entry *de; sector_t blknr; __le16 date, time; + u8 time_cs; int err, cluster; err = fat_alloc_clusters(dir, &cluster, 1); @@ -1102,7 +1105,7 @@ int fat_alloc_new_dir(struct inode *dir, struct timespec *ts) goto error_free; } - fat_date_unix2dos(ts->tv_sec, &time, &date, sbi->options.tz_utc); + fat_time_unix2fat(sbi, ts, &time, &date, &time_cs); de = (struct msdos_dir_entry *)bhs[0]->b_data; /* filling the new directory slots ("." and ".." entries) */ @@ -1112,13 +1115,14 @@ int fat_alloc_new_dir(struct inode *dir, struct timespec *ts) de[0].lcase = de[1].lcase = 0; de[0].time = de[1].time = time; de[0].date = de[1].date = date; - de[0].ctime_cs = de[1].ctime_cs = 0; if (sbi->options.isvfat) { /* extra timestamps */ de[0].ctime = de[1].ctime = time; + de[0].ctime_cs = de[1].ctime_cs = time_cs; de[0].adate = de[0].cdate = de[1].adate = de[1].cdate = date; } else { de[0].ctime = de[1].ctime = 0; + de[0].ctime_cs = de[1].ctime_cs = 0; de[0].adate = de[0].cdate = de[1].adate = de[1].cdate = 0; } de[0].start = cpu_to_le16(cluster); diff --git a/fs/fat/fat.h b/fs/fat/fat.h new file mode 100644 index 00000000000..ea440d65819 --- /dev/null +++ b/fs/fat/fat.h @@ -0,0 +1,329 @@ +#ifndef _FAT_H +#define _FAT_H + +#include <linux/buffer_head.h> +#include <linux/string.h> +#include <linux/nls.h> +#include <linux/fs.h> +#include <linux/mutex.h> +#include <linux/msdos_fs.h> + +/* + * vfat shortname flags + */ +#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */ +#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */ +#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */ +#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */ +#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */ + +struct fat_mount_options { + uid_t fs_uid; + gid_t fs_gid; + unsigned short fs_fmask; + unsigned short fs_dmask; + unsigned short codepage; /* Codepage for shortname conversions */ + char *iocharset; /* Charset used for filename input/display */ + unsigned short shortname; /* flags for shortname display/create rule */ + unsigned char name_check; /* r = relaxed, n = normal, s = strict */ + unsigned short allow_utime;/* permission for setting the [am]time */ + unsigned quiet:1, /* set = fake successful chmods and chowns */ + showexec:1, /* set = only set x bit for com/exe/bat */ + sys_immutable:1, /* set = system files are immutable */ + dotsOK:1, /* set = hidden and system files are named '.filename' */ + isvfat:1, /* 0=no vfat long filename support, 1=vfat support */ + utf8:1, /* Use of UTF-8 character set (Default) */ + unicode_xlate:1, /* create escape sequences for unhandled Unicode */ + numtail:1, /* Does first alias have a numeric '~1' type tail? */ + flush:1, /* write things quickly */ + nocase:1, /* Does this need case conversion? 0=need case conversion*/ + usefree:1, /* Use free_clusters for FAT32 */ + tz_utc:1, /* Filesystem timestamps are in UTC */ + rodir:1; /* allow ATTR_RO for directory */ +}; + +#define FAT_HASH_BITS 8 +#define FAT_HASH_SIZE (1UL << FAT_HASH_BITS) + +/* + * MS-DOS file system in-core superblock data + */ +struct msdos_sb_info { + unsigned short sec_per_clus; /* sectors/cluster */ + unsigned short cluster_bits; /* log2(cluster_size) */ + unsigned int cluster_size; /* cluster size */ + unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */ + unsigned short fat_start; + unsigned long fat_length; /* FAT start & length (sec.) */ + unsigned long dir_start; + unsigned short dir_entries; /* root dir start & entries */ + unsigned long data_start; /* first data sector */ + unsigned long max_cluster; /* maximum cluster number */ + unsigned long root_cluster; /* first cluster of the root directory */ + unsigned long fsinfo_sector; /* sector number of FAT32 fsinfo */ + struct mutex fat_lock; + unsigned int prev_free; /* previously allocated cluster number */ + unsigned int free_clusters; /* -1 if undefined */ + unsigned int free_clus_valid; /* is free_clusters valid? */ + struct fat_mount_options options; + struct nls_table *nls_disk; /* Codepage used on disk */ + struct nls_table *nls_io; /* Charset used for input and display */ + const void *dir_ops; /* Opaque; default directory operations */ + int dir_per_block; /* dir entries per block */ + int dir_per_block_bits; /* log2(dir_per_block) */ + + int fatent_shift; + struct fatent_operations *fatent_ops; + + spinlock_t inode_hash_lock; + struct hlist_head inode_hashtable[FAT_HASH_SIZE]; +}; + +#define FAT_CACHE_VALID 0 /* special case for valid cache */ + +/* + * MS-DOS file system inode data in memory + */ +struct msdos_inode_info { + spinlock_t cache_lru_lock; + struct list_head cache_lru; + int nr_caches; + /* for avoiding the race between fat_free() and fat_get_cluster() */ + unsigned int cache_valid_id; + + /* NOTE: mmu_private is 64bits, so must hold ->i_mutex to access */ + loff_t mmu_private; /* physically allocated size */ + + int i_start; /* first cluster or 0 */ + int i_logstart; /* logical first cluster */ + int i_attrs; /* unused attribute bits */ + loff_t i_pos; /* on-disk position of directory entry or 0 */ + struct hlist_node i_fat_hash; /* hash by i_location */ + struct inode vfs_inode; +}; + +struct fat_slot_info { + loff_t i_pos; /* on-disk position of directory entry */ + loff_t slot_off; /* offset for slot or de start */ + int nr_slots; /* number of slots + 1(de) in filename */ + struct msdos_dir_entry *de; + struct buffer_head *bh; +}; + +static inline struct msdos_sb_info *MSDOS_SB(struct super_block *sb) +{ + return sb->s_fs_info; +} + +static inline struct msdos_inode_info *MSDOS_I(struct inode *inode) +{ + return container_of(inode, struct msdos_inode_info, vfs_inode); +} + +/* + * If ->i_mode can't hold S_IWUGO (i.e. ATTR_RO), we use ->i_attrs to + * save ATTR_RO instead of ->i_mode. + * + * If it's directory and !sbi->options.rodir, ATTR_RO isn't read-only + * bit, it's just used as flag for app. + */ +static inline int fat_mode_can_hold_ro(struct inode *inode) +{ + struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb); + mode_t mask; + + if (S_ISDIR(inode->i_mode)) { + if (!sbi->options.rodir) + return 0; + mask = ~sbi->options.fs_dmask; + } else + mask = ~sbi->options.fs_fmask; + + if (!(mask & S_IWUGO)) + return 0; + return 1; +} + +/* Convert attribute bits and a mask to the UNIX mode. */ +static inline mode_t fat_make_mode(struct msdos_sb_info *sbi, + u8 attrs, mode_t mode) +{ + if (attrs & ATTR_RO && !((attrs & ATTR_DIR) && !sbi->options.rodir)) + mode &= ~S_IWUGO; + + if (attrs & ATTR_DIR) + return (mode & ~sbi->options.fs_dmask) | S_IFDIR; + else + return (mode & ~sbi->options.fs_fmask) | S_IFREG; +} + +/* Return the FAT attribute byte for this inode */ +static inline u8 fat_make_attrs(struct inode *inode) +{ + u8 attrs = MSDOS_I(inode)->i_attrs; + if (S_ISDIR(inode->i_mode)) + attrs |= ATTR_DIR; + if (fat_mode_can_hold_ro(inode) && !(inode->i_mode & S_IWUGO)) + attrs |= ATTR_RO; + return attrs; +} + +static inline void fat_save_attrs(struct inode *inode, u8 attrs) +{ + if (fat_mode_can_hold_ro(inode)) + MSDOS_I(inode)->i_attrs = attrs & ATTR_UNUSED; + else + MSDOS_I(inode)->i_attrs = attrs & (ATTR_UNUSED | ATTR_RO); +} + +static inline unsigned char fat_checksum(const __u8 *name) +{ + unsigned char s = name[0]; + s = (s<<7) + (s>>1) + name[1]; s = (s<<7) + (s>>1) + name[2]; + s = (s<<7) + (s>>1) + name[3]; s = (s<<7) + (s>>1) + name[4]; + s = (s<<7) + (s>>1) + name[5]; s = (s<<7) + (s>>1) + name[6]; + s = (s<<7) + (s>>1) + name[7]; s = (s<<7) + (s>>1) + name[8]; + s = (s<<7) + (s>>1) + name[9]; s = (s<<7) + (s>>1) + name[10]; + return s; +} + +static inline sector_t fat_clus_to_blknr(struct msdos_sb_info *sbi, int clus) +{ + return ((sector_t)clus - FAT_START_ENT) * sbi->sec_per_clus + + sbi->data_start; +} + +static inline void fat16_towchar(wchar_t *dst, const __u8 *src, size_t len) +{ +#ifdef __BIG_ENDIAN + while (len--) { + *dst++ = src[0] | (src[1] << 8); + src += 2; + } +#else + memcpy(dst, src, len * 2); +#endif +} + +static inline void fatwchar_to16(__u8 *dst, const wchar_t *src, size_t len) +{ +#ifdef __BIG_ENDIAN + while (len--) { + dst[0] = *src & 0x00FF; + dst[1] = (*src & 0xFF00) >> 8; + dst += 2; + src++; + } +#else + memcpy(dst, src, len * 2); +#endif +} + +/* fat/cache.c */ +extern void fat_cache_inval_inode(struct inode *inode); +extern int fat_get_cluster(struct inode *inode, int cluster, + int *fclus, int *dclus); +extern int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys, + unsigned long *mapped_blocks, int create); + +/* fat/dir.c */ +extern const struct file_operations fat_dir_operations; +extern int fat_search_long(struct inode *inode, const unsigned char *name, + int name_len, struct fat_slot_info *sinfo); +extern int fat_dir_empty(struct inode *dir); +extern int fat_subdirs(struct inode *dir); +extern int fat_scan(struct inode *dir, const unsigned char *name, + struct fat_slot_info *sinfo); +extern int fat_get_dotdot_entry(struct inode *dir, struct buffer_head **bh, + struct msdos_dir_entry **de, loff_t *i_pos); +extern int fat_alloc_new_dir(struct inode *dir, struct timespec *ts); +extern int fat_add_entries(struct inode *dir, void *slots, int nr_slots, + struct fat_slot_info *sinfo); +extern int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo); + +/* fat/fatent.c */ +struct fat_entry { + int entry; + union { + u8 *ent12_p[2]; + __le16 *ent16_p; + __le32 *ent32_p; + } u; + int nr_bhs; + struct buffer_head *bhs[2]; +}; + +static inline void fatent_init(struct fat_entry *fatent) +{ + fatent->nr_bhs = 0; + fatent->entry = 0; + fatent->u.ent32_p = NULL; + fatent->bhs[0] = fatent->bhs[1] = NULL; +} + +static inline void fatent_set_entry(struct fat_entry *fatent, int entry) +{ + fatent->entry = entry; + fatent->u.ent32_p = NULL; +} + +static inline void fatent_brelse(struct fat_entry *fatent) +{ + int i; + fatent->u.ent32_p = NULL; + for (i = 0; i < fatent->nr_bhs; i++) + brelse(fatent->bhs[i]); + fatent->nr_bhs = 0; + fatent->bhs[0] = fatent->bhs[1] = NULL; +} + +extern void fat_ent_access_init(struct super_block *sb); +extern int fat_ent_read(struct inode *inode, struct fat_entry *fatent, + int entry); +extern int fat_ent_write(struct inode *inode, struct fat_entry *fatent, + int new, int wait); +extern int fat_alloc_clusters(struct inode *inode, int *cluster, + int nr_cluster); +extern int fat_free_clusters(struct inode *inode, int cluster); +extern int fat_count_free_clusters(struct super_block *sb); + +/* fat/file.c */ +extern int fat_generic_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg); +extern const struct file_operations fat_file_operations; +extern const struct inode_operations fat_file_inode_operations; +extern int fat_setattr(struct dentry * dentry, struct iattr * attr); +extern void fat_truncate(struct inode *inode); +extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, + struct kstat *stat); + +/* fat/inode.c */ +extern void fat_attach(struct inode *inode, loff_t i_pos); +extern void fat_detach(struct inode *inode); +extern struct inode *fat_iget(struct super_block *sb, loff_t i_pos); +extern struct inode *fat_build_inode(struct super_block *sb, + struct msdos_dir_entry *de, loff_t i_pos); +extern int fat_sync_inode(struct inode *inode); +extern int fat_fill_super(struct super_block *sb, void *data, int silent, + const struct inode_operations *fs_dir_inode_ops, int isvfat); + +extern int fat_flush_inodes(struct super_block *sb, struct inode *i1, + struct inode *i2); +/* fat/misc.c */ +extern void fat_fs_panic(struct super_block *s, const char *fmt, ...) + __attribute__ ((format (printf, 2, 3))) __cold; +extern void fat_clusters_flush(struct super_block *sb); +extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster); +extern void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts, + __le16 __time, __le16 __date, u8 time_cs); +extern void fat_time_unix2fat(struct msdos_sb_info *sbi, struct timespec *ts, + __le16 *time, __le16 *date, u8 *time_cs); +extern int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs); + +int fat_cache_init(void); +void fat_cache_destroy(void); + +/* helper for printk */ +typedef unsigned long long llu; + +#endif /* !_FAT_H */ diff --git a/fs/fat/fatent.c b/fs/fat/fatent.c index fb98b3d847e..da6eea47872 100644 --- a/fs/fat/fatent.c +++ b/fs/fat/fatent.c @@ -7,6 +7,7 @@ #include <linux/fs.h> #include <linux/msdos_fs.h> #include <linux/blkdev.h> +#include "fat.h" struct fatent_operations { void (*ent_blocknr)(struct super_block *, int, int *, sector_t *); @@ -92,8 +93,7 @@ static int fat12_ent_bread(struct super_block *sb, struct fat_entry *fatent, err_brelse: brelse(bhs[0]); err: - printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n", - (unsigned long long)blocknr); + printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n", (llu)blocknr); return -EIO; } @@ -106,7 +106,7 @@ static int fat_ent_bread(struct super_block *sb, struct fat_entry *fatent, fatent->bhs[0] = sb_bread(sb, blocknr); if (!fatent->bhs[0]) { printk(KERN_ERR "FAT: FAT read failed (blocknr %llu)\n", - (unsigned long long)blocknr); + (llu)blocknr); return -EIO; } fatent->nr_bhs = 1; @@ -316,10 +316,20 @@ static inline int fat_ent_update_ptr(struct super_block *sb, /* Is this fatent's blocks including this entry? */ if (!fatent->nr_bhs || bhs[0]->b_blocknr != blocknr) return 0; - /* Does this entry need the next block? */ - if (sbi->fat_bits == 12 && (offset + 1) >= sb->s_blocksize) { - if (fatent->nr_bhs != 2 || bhs[1]->b_blocknr != (blocknr + 1)) - return 0; + if (sbi->fat_bits == 12) { + if ((offset + 1) < sb->s_blocksize) { + /* This entry is on bhs[0]. */ + if (fatent->nr_bhs == 2) { + brelse(bhs[1]); + fatent->nr_bhs = 1; + } + } else { + /* This entry needs the next block. */ + if (fatent->nr_bhs != 2) + return 0; + if (bhs[1]->b_blocknr != (blocknr + 1)) + return 0; + } } ops->ent_set_ptr(fatent, offset); return 1; diff --git a/fs/fat/file.c b/fs/fat/file.c index ddde37025ca..f06a4e525ec 100644 --- a/fs/fat/file.c +++ b/fs/fat/file.c @@ -10,13 +10,13 @@ #include <linux/module.h> #include <linux/mount.h> #include <linux/time.h> -#include <linux/msdos_fs.h> #include <linux/buffer_head.h> #include <linux/writeback.h> #include <linux/backing-dev.h> #include <linux/blkdev.h> #include <linux/fsnotify.h> #include <linux/security.h> +#include "fat.h" int fat_generic_ioctl(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg) @@ -29,10 +29,9 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp, { u32 attr; - if (inode->i_ino == MSDOS_ROOT_INO) - attr = ATTR_DIR; - else - attr = fat_attr(inode); + mutex_lock(&inode->i_mutex); + attr = fat_make_attrs(inode); + mutex_unlock(&inode->i_mutex); return put_user(attr, user_attr); } @@ -62,20 +61,16 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp, /* Merge in ATTR_VOLUME and ATTR_DIR */ attr |= (MSDOS_I(inode)->i_attrs & ATTR_VOLUME) | (is_dir ? ATTR_DIR : 0); - oldattr = fat_attr(inode); + oldattr = fat_make_attrs(inode); /* Equivalent to a chmod() */ ia.ia_valid = ATTR_MODE | ATTR_CTIME; ia.ia_ctime = current_fs_time(inode->i_sb); - if (is_dir) { - ia.ia_mode = MSDOS_MKMODE(attr, - S_IRWXUGO & ~sbi->options.fs_dmask) - | S_IFDIR; - } else { - ia.ia_mode = MSDOS_MKMODE(attr, - (S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO)) - & ~sbi->options.fs_fmask) - | S_IFREG; + if (is_dir) + ia.ia_mode = fat_make_mode(sbi, attr, S_IRWXUGO); + else { + ia.ia_mode = fat_make_mode(sbi, attr, + S_IRUGO | S_IWUGO | (inode->i_mode & S_IXUGO)); } /* The root directory has no attributes */ @@ -115,7 +110,7 @@ int fat_generic_ioctl(struct inode *inode, struct file *filp, inode->i_flags &= S_IMMUTABLE; } - MSDOS_I(inode)->i_attrs = attr & ATTR_UNUSED; + fat_save_attrs(inode, attr); mark_inode_dirty(inode); up: mnt_drop_write(filp->f_path.mnt); @@ -274,7 +269,7 @@ static int fat_sanitize_mode(const struct msdos_sb_info *sbi, /* * Note, the basic check is already done by a caller of - * (attr->ia_mode & ~MSDOS_VALID_MODE) + * (attr->ia_mode & ~FAT_VALID_MODE) */ if (S_ISREG(inode->i_mode)) @@ -287,11 +282,18 @@ static int fat_sanitize_mode(const struct msdos_sb_info *sbi, /* * Of the r and x bits, all (subject to umask) must be present. Of the * w bits, either all (subject to umask) or none must be present. + * + * If fat_mode_can_hold_ro(inode) is false, can't change w bits. */ if ((perm & (S_IRUGO | S_IXUGO)) != (inode->i_mode & (S_IRUGO|S_IXUGO))) return -EPERM; - if ((perm & S_IWUGO) && ((perm & S_IWUGO) != (S_IWUGO & ~mask))) - return -EPERM; + if (fat_mode_can_hold_ro(inode)) { + if ((perm & S_IWUGO) && ((perm & S_IWUGO) != (S_IWUGO & ~mask))) + return -EPERM; + } else { + if ((perm & S_IWUGO) != (S_IWUGO & ~mask)) + return -EPERM; + } *mode_ptr &= S_IFMT | perm; @@ -314,13 +316,15 @@ static int fat_allow_set_time(struct msdos_sb_info *sbi, struct inode *inode) } #define TIMES_SET_FLAGS (ATTR_MTIME_SET | ATTR_ATIME_SET | ATTR_TIMES_SET) +/* valid file mode bits */ +#define FAT_VALID_MODE (S_IFREG | S_IFDIR | S_IRWXUGO) int fat_setattr(struct dentry *dentry, struct iattr *attr) { struct msdos_sb_info *sbi = MSDOS_SB(dentry->d_sb); struct inode *inode = dentry->d_inode; - int error = 0; unsigned int ia_valid; + int error; /* * Expand the file. Since inode_setattr() updates ->i_size @@ -356,7 +360,7 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr) ((attr->ia_valid & ATTR_GID) && (attr->ia_gid != sbi->options.fs_gid)) || ((attr->ia_valid & ATTR_MODE) && - (attr->ia_mode & ~MSDOS_VALID_MODE))) + (attr->ia_mode & ~FAT_VALID_MODE))) error = -EPERM; if (error) { @@ -374,7 +378,8 @@ int fat_setattr(struct dentry *dentry, struct iattr *attr) attr->ia_valid &= ~ATTR_MODE; } - error = inode_setattr(inode, attr); + if (attr->ia_valid) + error = inode_setattr(inode, attr); out: return error; } diff --git a/fs/fat/inode.c b/fs/fat/inode.c index 2b2eec1283b..bdd8fb7be2c 100644 --- a/fs/fat/inode.c +++ b/fs/fat/inode.c @@ -16,7 +16,6 @@ #include <linux/slab.h> #include <linux/smp_lock.h> #include <linux/seq_file.h> -#include <linux/msdos_fs.h> #include <linux/pagemap.h> #include <linux/mpage.h> #include <linux/buffer_head.h> @@ -27,7 +26,9 @@ #include <linux/uio.h> #include <linux/writeback.h> #include <linux/log2.h> +#include <linux/hash.h> #include <asm/unaligned.h> +#include "fat.h" #ifndef CONFIG_FAT_DEFAULT_IOCHARSET /* if user don't select VFAT, this is undefined. */ @@ -63,7 +64,7 @@ static inline int __fat_get_block(struct inode *inode, sector_t iblock, sector_t phys; int err, offset; - err = fat_bmap(inode, iblock, &phys, &mapped_blocks); + err = fat_bmap(inode, iblock, &phys, &mapped_blocks, create); if (err) return err; if (phys) { @@ -93,7 +94,7 @@ static inline int __fat_get_block(struct inode *inode, sector_t iblock, *max_blocks = min(mapped_blocks, *max_blocks); MSDOS_I(inode)->mmu_private += *max_blocks << sb->s_blocksize_bits; - err = fat_bmap(inode, iblock, &phys, &mapped_blocks); + err = fat_bmap(inode, iblock, &phys, &mapped_blocks, create); if (err) return err; @@ -198,7 +199,14 @@ static ssize_t fat_direct_IO(int rw, struct kiocb *iocb, static sector_t _fat_bmap(struct address_space *mapping, sector_t block) { - return generic_block_bmap(mapping, block, fat_get_block); + sector_t blocknr; + + /* fat_get_cluster() assumes the requested blocknr isn't truncated. */ + mutex_lock(&mapping->host->i_mutex); + blocknr = generic_block_bmap(mapping, block, fat_get_block); + mutex_unlock(&mapping->host->i_mutex); + + return blocknr; } static const struct address_space_operations fat_aops = { @@ -247,25 +255,21 @@ static void fat_hash_init(struct super_block *sb) INIT_HLIST_HEAD(&sbi->inode_hashtable[i]); } -static inline unsigned long fat_hash(struct super_block *sb, loff_t i_pos) +static inline unsigned long fat_hash(loff_t i_pos) { - unsigned long tmp = (unsigned long)i_pos | (unsigned long) sb; - tmp = tmp + (tmp >> FAT_HASH_BITS) + (tmp >> FAT_HASH_BITS * 2); - return tmp & FAT_HASH_MASK; + return hash_32(i_pos, FAT_HASH_BITS); } void fat_attach(struct inode *inode, loff_t i_pos) { - struct super_block *sb = inode->i_sb; - struct msdos_sb_info *sbi = MSDOS_SB(sb); + struct msdos_sb_info *sbi = MSDOS_SB(inode->i_sb); + struct hlist_head *head = sbi->inode_hashtable + fat_hash(i_pos); spin_lock(&sbi->inode_hash_lock); MSDOS_I(inode)->i_pos = i_pos; - hlist_add_head(&MSDOS_I(inode)->i_fat_hash, - sbi->inode_hashtable + fat_hash(sb, i_pos)); + hlist_add_head(&MSDOS_I(inode)->i_fat_hash, head); spin_unlock(&sbi->inode_hash_lock); } - EXPORT_SYMBOL_GPL(fat_attach); void fat_detach(struct inode *inode) @@ -276,13 +280,12 @@ void fat_detach(struct inode *inode) hlist_del_init(&MSDOS_I(inode)->i_fat_hash); spin_unlock(&sbi->inode_hash_lock); } - EXPORT_SYMBOL_GPL(fat_detach); struct inode *fat_iget(struct super_block *sb, loff_t i_pos) { struct msdos_sb_info *sbi = MSDOS_SB(sb); - struct hlist_head *head = sbi->inode_hashtable + fat_hash(sb, i_pos); + struct hlist_head *head = sbi->inode_hashtable + fat_hash(i_pos); struct hlist_node *_p; struct msdos_inode_info *i; struct inode *inode = NULL; @@ -341,8 +344,7 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de) if ((de->attr & ATTR_DIR) && !IS_FREE(de->name)) { inode->i_generation &= ~1; - inode->i_mode = MSDOS_MKMODE(de->attr, - S_IRWXUGO & ~sbi->options.fs_dmask) | S_IFDIR; + inode->i_mode = fat_make_mode(sbi, de->attr, S_IRWXUGO); inode->i_op = sbi->dir_ops; inode->i_fop = &fat_dir_operations; @@ -359,10 +361,9 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de) inode->i_nlink = fat_subdirs(inode); } else { /* not a directory */ inode->i_generation |= 1; - inode->i_mode = MSDOS_MKMODE(de->attr, - ((sbi->options.showexec && !is_exec(de->name + 8)) - ? S_IRUGO|S_IWUGO : S_IRWXUGO) - & ~sbi->options.fs_fmask) | S_IFREG; + inode->i_mode = fat_make_mode(sbi, de->attr, + ((sbi->options.showexec && !is_exec(de->name + 8)) + ? S_IRUGO|S_IWUGO : S_IRWXUGO)); MSDOS_I(inode)->i_start = le16_to_cpu(de->start); if (sbi->fat_bits == 32) MSDOS_I(inode)->i_start |= (le16_to_cpu(de->starthi) << 16); @@ -378,25 +379,16 @@ static int fat_fill_inode(struct inode *inode, struct msdos_dir_entry *de) if (sbi->options.sys_immutable) inode->i_flags |= S_IMMUTABLE; } - MSDOS_I(inode)->i_attrs = de->attr & ATTR_UNUSED; + fat_save_attrs(inode, de->attr); + inode->i_blocks = ((inode->i_size + (sbi->cluster_size - 1)) & ~((loff_t)sbi->cluster_size - 1)) >> 9; - inode->i_mtime.tv_sec = - date_dos2unix(le16_to_cpu(de->time), le16_to_cpu(de->date), - sbi->options.tz_utc); - inode->i_mtime.tv_nsec = 0; + + fat_time_fat2unix(sbi, &inode->i_mtime, de->time, de->date, 0); if (sbi->options.isvfat) { - int secs = de->ctime_cs / 100; - int csecs = de->ctime_cs % 100; - inode->i_ctime.tv_sec = - date_dos2unix(le16_to_cpu(de->ctime), - le16_to_cpu(de->cdate), - sbi->options.tz_utc) + secs; - inode->i_ctime.tv_nsec = csecs * 10000000; - inode->i_atime.tv_sec = - date_dos2unix(0, le16_to_cpu(de->adate), - sbi->options.tz_utc); - inode->i_atime.tv_nsec = 0; + fat_time_fat2unix(sbi, &inode->i_ctime, de->ctime, + de->cdate, de->ctime_cs); + fat_time_fat2unix(sbi, &inode->i_atime, 0, de->adate, 0); } else inode->i_ctime = inode->i_atime = inode->i_mtime; @@ -443,13 +435,8 @@ static void fat_delete_inode(struct inode *inode) static void fat_clear_inode(struct inode *inode) { - struct super_block *sb = inode->i_sb; - struct msdos_sb_info *sbi = MSDOS_SB(sb); - - spin_lock(&sbi->inode_hash_lock); fat_cache_inval_inode(inode); - hlist_del_init(&MSDOS_I(inode)->i_fat_hash); - spin_unlock(&sbi->inode_hash_lock); + fat_detach(inode); } static void fat_write_super(struct super_block *sb) @@ -555,6 +542,20 @@ static int fat_statfs(struct dentry *dentry, struct kstatfs *buf) return 0; } +static inline loff_t fat_i_pos_read(struct msdos_sb_info *sbi, + struct inode *inode) +{ + loff_t i_pos; +#if BITS_PER_LONG == 32 + spin_lock(&sbi->inode_hash_lock); +#endif + i_pos = MSDOS_I(inode)->i_pos; +#if BITS_PER_LONG == 32 + spin_unlock(&sbi->inode_hash_lock); +#endif + return i_pos; +} + static int fat_write_inode(struct inode *inode, int wait) { struct super_block *sb = inode->i_sb; @@ -564,9 +565,12 @@ static int fat_write_inode(struct inode *inode, int wait) loff_t i_pos; int err; + if (inode->i_ino == MSDOS_ROOT_INO) + return 0; + retry: - i_pos = MSDOS_I(inode)->i_pos; - if (inode->i_ino == MSDOS_ROOT_INO || !i_pos) + i_pos = fat_i_pos_read(sbi, inode); + if (!i_pos) return 0; bh = sb_bread(sb, i_pos >> sbi->dir_per_block_bits); @@ -588,19 +592,17 @@ retry: raw_entry->size = 0; else raw_entry->size = cpu_to_le32(inode->i_size); - raw_entry->attr = fat_attr(inode); + raw_entry->attr = fat_make_attrs(inode); raw_entry->start = cpu_to_le16(MSDOS_I(inode)->i_logstart); raw_entry->starthi = cpu_to_le16(MSDOS_I(inode)->i_logstart >> 16); - fat_date_unix2dos(inode->i_mtime.tv_sec, &raw_entry->time, - &raw_entry->date, sbi->options.tz_utc); + fat_time_unix2fat(sbi, &inode->i_mtime, &raw_entry->time, + &raw_entry->date, NULL); if (sbi->options.isvfat) { __le16 atime; - fat_date_unix2dos(inode->i_ctime.tv_sec, &raw_entry->ctime, - &raw_entry->cdate, sbi->options.tz_utc); - fat_date_unix2dos(inode->i_atime.tv_sec, &atime, - &raw_entry->adate, sbi->options.tz_utc); - raw_entry->ctime_cs = (inode->i_ctime.tv_sec & 1) * 100 + - inode->i_ctime.tv_nsec / 10000000; + fat_time_unix2fat(sbi, &inode->i_ctime, &raw_entry->ctime, + &raw_entry->cdate, &raw_entry->ctime_cs); + fat_time_unix2fat(sbi, &inode->i_atime, &atime, + &raw_entry->adate, NULL); } spin_unlock(&sbi->inode_hash_lock); mark_buffer_dirty(bh); @@ -819,8 +821,10 @@ static int fat_show_options(struct seq_file *m, struct vfsmount *mnt) seq_puts(m, ",uni_xlate"); if (!opts->numtail) seq_puts(m, ",nonumtail"); + if (opts->rodir) + seq_puts(m, ",rodir"); } - if (sbi->options.flush) + if (opts->flush) seq_puts(m, ",flush"); if (opts->tz_utc) seq_puts(m, ",tz=UTC"); @@ -836,7 +840,7 @@ enum { Opt_charset, Opt_shortname_lower, Opt_shortname_win95, Opt_shortname_winnt, Opt_shortname_mixed, Opt_utf8_no, Opt_utf8_yes, Opt_uni_xl_no, Opt_uni_xl_yes, Opt_nonumtail_no, Opt_nonumtail_yes, - Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_err, + Opt_obsolate, Opt_flush, Opt_tz_utc, Opt_rodir, Opt_err, }; static const match_table_t fat_tokens = { @@ -908,6 +912,7 @@ static const match_table_t vfat_tokens = { {Opt_nonumtail_yes, "nonumtail=yes"}, {Opt_nonumtail_yes, "nonumtail=true"}, {Opt_nonumtail_yes, "nonumtail"}, + {Opt_rodir, "rodir"}, {Opt_err, NULL} }; @@ -927,10 +932,13 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, opts->allow_utime = -1; opts->codepage = fat_default_codepage; opts->iocharset = fat_default_iocharset; - if (is_vfat) + if (is_vfat) { opts->shortname = VFAT_SFN_DISPLAY_LOWER|VFAT_SFN_CREATE_WIN95; - else + opts->rodir = 0; + } else { opts->shortname = 0; + opts->rodir = 1; + } opts->name_check = 'n'; opts->quiet = opts->showexec = opts->sys_immutable = opts->dotsOK = 0; opts->utf8 = opts->unicode_xlate = 0; @@ -1081,6 +1089,9 @@ static int parse_options(char *options, int is_vfat, int silent, int *debug, case Opt_nonumtail_yes: /* empty or 1 or yes or true */ opts->numtail = 0; /* negated option */ break; + case Opt_rodir: + opts->rodir = 1; + break; /* obsolete mount options */ case Opt_obsolate: @@ -1126,7 +1137,7 @@ static int fat_read_root(struct inode *inode) inode->i_gid = sbi->options.fs_gid; inode->i_version++; inode->i_generation = 0; - inode->i_mode = (S_IRWXUGO & ~sbi->options.fs_dmask) | S_IFDIR; + inode->i_mode = fat_make_mode(sbi, ATTR_DIR, S_IRWXUGO); inode->i_op = sbi->dir_ops; inode->i_fop = &fat_dir_operations; if (sbi->fat_bits == 32) { @@ -1143,7 +1154,7 @@ static int fat_read_root(struct inode *inode) MSDOS_I(inode)->i_logstart = 0; MSDOS_I(inode)->mmu_private = inode->i_size; - MSDOS_I(inode)->i_attrs = ATTR_NONE; + fat_save_attrs(inode, ATTR_DIR); inode->i_mtime.tv_sec = inode->i_atime.tv_sec = inode->i_ctime.tv_sec = 0; inode->i_mtime.tv_nsec = inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec = 0; inode->i_nlink = fat_subdirs(inode)+2; diff --git a/fs/fat/misc.c b/fs/fat/misc.c index 79fb98ad36d..ac39ebcc149 100644 --- a/fs/fat/misc.c +++ b/fs/fat/misc.c @@ -8,8 +8,8 @@ #include <linux/module.h> #include <linux/fs.h> -#include <linux/msdos_fs.h> #include <linux/buffer_head.h> +#include "fat.h" /* * fat_fs_panic reports a severe file system problem and sets the file system @@ -124,8 +124,9 @@ int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster) mark_inode_dirty(inode); } if (new_fclus != (inode->i_blocks >> (sbi->cluster_bits - 9))) { - fat_fs_panic(sb, "clusters badly computed (%d != %lu)", - new_fclus, inode->i_blocks >> (sbi->cluster_bits - 9)); + fat_fs_panic(sb, "clusters badly computed (%d != %llu)", + new_fclus, + (llu)(inode->i_blocks >> (sbi->cluster_bits - 9))); fat_cache_inval_inode(inode); } inode->i_blocks += nr_cluster << (sbi->cluster_bits - 9); @@ -135,65 +136,131 @@ int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster) extern struct timezone sys_tz; +/* + * The epoch of FAT timestamp is 1980. + * : bits : value + * date: 0 - 4: day (1 - 31) + * date: 5 - 8: month (1 - 12) + * date: 9 - 15: year (0 - 127) from 1980 + * time: 0 - 4: sec (0 - 29) 2sec counts + * time: 5 - 10: min (0 - 59) + * time: 11 - 15: hour (0 - 23) + */ +#define SECS_PER_MIN 60 +#define SECS_PER_HOUR (60 * 60) +#define SECS_PER_DAY (SECS_PER_HOUR * 24) +#define UNIX_SECS_1980 315532800L +#if BITS_PER_LONG == 64 +#define UNIX_SECS_2108 4354819200L +#endif +/* days between 1.1.70 and 1.1.80 (2 leap days) */ +#define DAYS_DELTA (365 * 10 + 2) +/* 120 (2100 - 1980) isn't leap year */ +#define YEAR_2100 120 +#define IS_LEAP_YEAR(y) (!((y) & 3) && (y) != YEAR_2100) + /* Linear day numbers of the respective 1sts in non-leap years. */ -static int day_n[] = { - /* Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec */ - 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, 0 +static time_t days_in_year[] = { + /* Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec */ + 0, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334, 0, 0, 0, }; -/* Convert a MS-DOS time/date pair to a UNIX date (seconds since 1 1 70). */ -int date_dos2unix(unsigned short time, unsigned short date, int tz_utc) +/* Convert a FAT time/date pair to a UNIX date (seconds since 1 1 70). */ +void fat_time_fat2unix(struct msdos_sb_info *sbi, struct timespec *ts, + __le16 __time, __le16 __date, u8 time_cs) { - int month, year, secs; + u16 time = le16_to_cpu(__time), date = le16_to_cpu(__date); + time_t second, day, leap_day, month, year; - /* - * first subtract and mask after that... Otherwise, if - * date == 0, bad things happen - */ - month = ((date >> 5) - 1) & 15; - year = date >> 9; - secs = (time & 31)*2+60*((time >> 5) & 63)+(time >> 11)*3600+86400* - ((date & 31)-1+day_n[month]+(year/4)+year*365-((year & 3) == 0 && - month < 2 ? 1 : 0)+3653); - /* days since 1.1.70 plus 80's leap day */ - if (!tz_utc) - secs += sys_tz.tz_minuteswest*60; - return secs; + year = date >> 9; + month = max(1, (date >> 5) & 0xf); + day = max(1, date & 0x1f) - 1; + + leap_day = (year + 3) / 4; + if (year > YEAR_2100) /* 2100 isn't leap year */ + leap_day--; + if (IS_LEAP_YEAR(year) && month > 2) + leap_day++; + + second = (time & 0x1f) << 1; + second += ((time >> 5) & 0x3f) * SECS_PER_MIN; + second += (time >> 11) * SECS_PER_HOUR; + second += (year * 365 + leap_day + + days_in_year[month] + day + + DAYS_DELTA) * SECS_PER_DAY; + + if (!sbi->options.tz_utc) + second += sys_tz.tz_minuteswest * SECS_PER_MIN; + + if (time_cs) { + ts->tv_sec = second + (time_cs / 100); + ts->tv_nsec = (time_cs % 100) * 10000000; + } else { + ts->tv_sec = second; + ts->tv_nsec = 0; + } } -/* Convert linear UNIX date to a MS-DOS time/date pair. */ -void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date, int tz_utc) +/* Convert linear UNIX date to a FAT time/date pair. */ +void fat_time_unix2fat(struct msdos_sb_info *sbi, struct timespec *ts, + __le16 *time, __le16 *date, u8 *time_cs) { - int day, year, nl_day, month; + time_t second = ts->tv_sec; + time_t day, leap_day, month, year; - if (!tz_utc) - unix_date -= sys_tz.tz_minuteswest*60; + if (!sbi->options.tz_utc) + second -= sys_tz.tz_minuteswest * SECS_PER_MIN; /* Jan 1 GMT 00:00:00 1980. But what about another time zone? */ - if (unix_date < 315532800) - unix_date = 315532800; - - *time = cpu_to_le16((unix_date % 60)/2+(((unix_date/60) % 60) << 5)+ - (((unix_date/3600) % 24) << 11)); - day = unix_date/86400-3652; - year = day/365; - if ((year+3)/4+365*year > day) + if (second < UNIX_SECS_1980) { + *time = 0; + *date = cpu_to_le16((0 << 9) | (1 << 5) | 1); + if (time_cs) + *time_cs = 0; + return; + } +#if BITS_PER_LONG == 64 + if (second >= UNIX_SECS_2108) { + *time = cpu_to_le16((23 << 11) | (59 << 5) | 29); + *date = cpu_to_le16((127 << 9) | (12 << 5) | 31); + if (time_cs) + *time_cs = 199; + return; + } +#endif + + day = second / SECS_PER_DAY - DAYS_DELTA; + year = day / 365; + leap_day = (year + 3) / 4; + if (year > YEAR_2100) /* 2100 isn't leap year */ + leap_day--; + if (year * 365 + leap_day > day) year--; - day -= (year+3)/4+365*year; - if (day == 59 && !(year & 3)) { - nl_day = day; + leap_day = (year + 3) / 4; + if (year > YEAR_2100) /* 2100 isn't leap year */ + leap_day--; + day -= year * 365 + leap_day; + + if (IS_LEAP_YEAR(year) && day == days_in_year[3]) { month = 2; } else { - nl_day = (year & 3) || day <= 59 ? day : day-1; - for (month = 0; month < 12; month++) { - if (day_n[month] > nl_day) + if (IS_LEAP_YEAR(year) && day > days_in_year[3]) + day--; + for (month = 1; month < 12; month++) { + if (days_in_year[month + 1] > day) break; } } - *date = cpu_to_le16(nl_day-day_n[month-1]+1+(month << 5)+(year << 9)); -} + day -= days_in_year[month]; -EXPORT_SYMBOL_GPL(fat_date_unix2dos); + *time = cpu_to_le16(((second / SECS_PER_HOUR) % 24) << 11 + | ((second / SECS_PER_MIN) % 60) << 5 + | (second % SECS_PER_MIN) >> 1); + *date = cpu_to_le16((year << 9) | (month << 5) | (day + 1)); + if (time_cs) + *time_cs = (ts->tv_sec & 1) * 100 + ts->tv_nsec / 10000000; +} +EXPORT_SYMBOL_GPL(fat_time_unix2fat); int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs) { diff --git a/fs/msdos/namei.c b/fs/fat/namei_msdos.c index e844b9809d2..7ba03a4acbe 100644 --- a/fs/msdos/namei.c +++ b/fs/fat/namei_msdos.c @@ -9,8 +9,8 @@ #include <linux/module.h> #include <linux/time.h> #include <linux/buffer_head.h> -#include <linux/msdos_fs.h> #include <linux/smp_lock.h> +#include "fat.h" /* Characters that are undesirable in an MS-DOS file name */ static unsigned char bad_chars[] = "*?<>|\""; @@ -203,33 +203,37 @@ static struct dentry *msdos_lookup(struct inode *dir, struct dentry *dentry, { struct super_block *sb = dir->i_sb; struct fat_slot_info sinfo; - struct inode *inode = NULL; - int res; - - dentry->d_op = &msdos_dentry_operations; + struct inode *inode; + int err; lock_super(sb); - res = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo); - if (res == -ENOENT) - goto add; - if (res < 0) - goto out; + + err = msdos_find(dir, dentry->d_name.name, dentry->d_name.len, &sinfo); + if (err) { + if (err == -ENOENT) { + inode = NULL; + goto out; + } + goto error; + } + inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos); brelse(sinfo.bh); if (IS_ERR(inode)) { - res = PTR_ERR(inode); - goto out; + err = PTR_ERR(inode); + goto error; } -add: - res = 0; +out: + unlock_super(sb); + dentry->d_op = &msdos_dentry_operations; dentry = d_splice_alias(inode, dentry); if (dentry) dentry->d_op = &msdos_dentry_operations; -out: + return dentry; + +error: unlock_super(sb); - if (!res) - return dentry; - return ERR_PTR(res); + return ERR_PTR(err); } /***** Creates a directory entry (name is already formatted). */ @@ -247,7 +251,7 @@ static int msdos_add_entry(struct inode *dir, const unsigned char *name, if (is_hid) de.attr |= ATTR_HIDDEN; de.lcase = 0; - fat_date_unix2dos(ts->tv_sec, &time, &date, sbi->options.tz_utc); + fat_time_unix2fat(sbi, ts, &time, &date, NULL); de.cdate = de.adate = 0; de.ctime = 0; de.ctime_cs = 0; diff --git a/fs/vfat/namei.c b/fs/fat/namei_vfat.c index 155c10b4adb..bf326d4356a 100644 --- a/fs/vfat/namei.c +++ b/fs/fat/namei_vfat.c @@ -16,36 +16,75 @@ */ #include <linux/module.h> - #include <linux/jiffies.h> -#include <linux/msdos_fs.h> #include <linux/ctype.h> #include <linux/slab.h> #include <linux/smp_lock.h> #include <linux/buffer_head.h> #include <linux/namei.h> +#include "fat.h" -static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd) +/* + * If new entry was created in the parent, it could create the 8.3 + * alias (the shortname of logname). So, the parent may have the + * negative-dentry which matches the created 8.3 alias. + * + * If it happened, the negative dentry isn't actually negative + * anymore. So, drop it. + */ +static int vfat_revalidate_shortname(struct dentry *dentry) { int ret = 1; - - if (!dentry->d_inode && - nd && !(nd->flags & LOOKUP_CONTINUE) && (nd->flags & LOOKUP_CREATE)) - /* - * negative dentry is dropped, in order to make sure - * to use the name which a user desires if this is - * create path. - */ + spin_lock(&dentry->d_lock); + if (dentry->d_time != dentry->d_parent->d_inode->i_version) ret = 0; - else { - spin_lock(&dentry->d_lock); - if (dentry->d_time != dentry->d_parent->d_inode->i_version) - ret = 0; - spin_unlock(&dentry->d_lock); - } + spin_unlock(&dentry->d_lock); return ret; } +static int vfat_revalidate(struct dentry *dentry, struct nameidata *nd) +{ + /* This is not negative dentry. Always valid. */ + if (dentry->d_inode) + return 1; + return vfat_revalidate_shortname(dentry); +} + +static int vfat_revalidate_ci(struct dentry *dentry, struct nameidata *nd) +{ + /* + * This is not negative dentry. Always valid. + * + * Note, rename() to existing directory entry will have ->d_inode, + * and will use existing name which isn't specified name by user. + * + * We may be able to drop this positive dentry here. But dropping + * positive dentry isn't good idea. So it's unsupported like + * rename("filename", "FILENAME") for now. + */ + if (dentry->d_inode) + return 1; + + /* + * This may be nfsd (or something), anyway, we can't see the + * intent of this. So, since this can be for creation, drop it. + */ + if (!nd) + return 0; + + /* + * Drop the negative dentry, in order to make sure to use the + * case sensitive name which is specified by user if this is + * for creation. + */ + if (!(nd->flags & (LOOKUP_CONTINUE | LOOKUP_PARENT))) { + if (nd->flags & LOOKUP_CREATE) + return 0; + } + + return vfat_revalidate_shortname(dentry); +} + /* returns the length of a struct qstr, ignoring trailing dots */ static unsigned int vfat_striptail_len(struct qstr *qstr) { @@ -127,25 +166,16 @@ static int vfat_cmp(struct dentry *dentry, struct qstr *a, struct qstr *b) return 1; } -static struct dentry_operations vfat_dentry_ops[4] = { - { - .d_hash = vfat_hashi, - .d_compare = vfat_cmpi, - }, - { - .d_revalidate = vfat_revalidate, - .d_hash = vfat_hashi, - .d_compare = vfat_cmpi, - }, - { - .d_hash = vfat_hash, - .d_compare = vfat_cmp, - }, - { - .d_revalidate = vfat_revalidate, - .d_hash = vfat_hash, - .d_compare = vfat_cmp, - } +static struct dentry_operations vfat_ci_dentry_ops = { + .d_revalidate = vfat_revalidate_ci, + .d_hash = vfat_hashi, + .d_compare = vfat_cmpi, +}; + +static struct dentry_operations vfat_dentry_ops = { + .d_revalidate = vfat_revalidate, + .d_hash = vfat_hash, + .d_compare = vfat_cmp, }; /* Characters that are undesirable in an MS-DOS file name */ @@ -569,6 +599,7 @@ static int vfat_build_slots(struct inode *dir, const unsigned char *name, unsigned char msdos_name[MSDOS_NAME]; wchar_t *uname; __le16 time, date; + u8 time_cs; int err, ulen, usize, i; loff_t offset; @@ -621,10 +652,10 @@ shortname: memcpy(de->name, msdos_name, MSDOS_NAME); de->attr = is_dir ? ATTR_DIR : ATTR_ARCH; de->lcase = lcase; - fat_date_unix2dos(ts->tv_sec, &time, &date, sbi->options.tz_utc); + fat_time_unix2fat(sbi, ts, &time, &date, &time_cs); de->time = de->ctime = time; de->date = de->cdate = de->adate = date; - de->ctime_cs = 0; + de->ctime_cs = time_cs; de->start = cpu_to_le16(cluster); de->starthi = cpu_to_le16(cluster >> 16); de->size = 0; @@ -683,46 +714,58 @@ static struct dentry *vfat_lookup(struct inode *dir, struct dentry *dentry, { struct super_block *sb = dir->i_sb; struct fat_slot_info sinfo; - struct inode *inode = NULL; + struct inode *inode; struct dentry *alias; - int err, table; + int err; lock_super(sb); - table = (MSDOS_SB(sb)->options.name_check == 's') ? 2 : 0; - dentry->d_op = &vfat_dentry_ops[table]; err = vfat_find(dir, &dentry->d_name, &sinfo); if (err) { - table++; + if (err == -ENOENT) { + inode = NULL; + goto out; + } goto error; } + inode = fat_build_inode(sb, sinfo.de, sinfo.i_pos); brelse(sinfo.bh); if (IS_ERR(inode)) { - unlock_super(sb); - return ERR_CAST(inode); + err = PTR_ERR(inode); + goto error; } - alias = d_find_alias(inode); - if (alias) { - if (d_invalidate(alias) == 0) - dput(alias); - else { - iput(inode); - unlock_super(sb); - return alias; - } + alias = d_find_alias(inode); + if (alias && !(alias->d_flags & DCACHE_DISCONNECTED)) { + /* + * This inode has non DCACHE_DISCONNECTED dentry. This + * means, the user did ->lookup() by an another name + * (longname vs 8.3 alias of it) in past. + * + * Switch to new one for reason of locality if possible. + */ + BUG_ON(d_unhashed(alias)); + if (!S_ISDIR(inode->i_mode)) + d_move(alias, dentry); + iput(inode); + unlock_super(sb); + return alias; } -error: +out: unlock_super(sb); - dentry->d_op = &vfat_dentry_ops[table]; + dentry->d_op = sb->s_root->d_op; dentry->d_time = dentry->d_parent->d_inode->i_version; dentry = d_splice_alias(inode, dentry); if (dentry) { - dentry->d_op = &vfat_dentry_ops[table]; + dentry->d_op = sb->s_root->d_op; dentry->d_time = dentry->d_parent->d_inode->i_version; } return dentry; + +error: + unlock_super(sb); + return ERR_PTR(err); } static int vfat_create(struct inode *dir, struct dentry *dentry, int mode, @@ -1014,9 +1057,9 @@ static int vfat_fill_super(struct super_block *sb, void *data, int silent) return res; if (MSDOS_SB(sb)->options.name_check != 's') - sb->s_root->d_op = &vfat_dentry_ops[0]; + sb->s_root->d_op = &vfat_ci_dentry_ops; else - sb->s_root->d_op = &vfat_dentry_ops[2]; + sb->s_root->d_op = &vfat_dentry_ops; return 0; } diff --git a/fs/jbd/checkpoint.c b/fs/jbd/checkpoint.c index 1bd8d4acc6f..61f32f3868c 100644 --- a/fs/jbd/checkpoint.c +++ b/fs/jbd/checkpoint.c @@ -115,7 +115,7 @@ static int __try_to_free_cp_buf(struct journal_head *jh) */ void __log_wait_for_space(journal_t *journal) { - int nblocks; + int nblocks, space_left; assert_spin_locked(&journal->j_state_lock); nblocks = jbd_space_needed(journal); @@ -128,25 +128,42 @@ void __log_wait_for_space(journal_t *journal) /* * Test again, another process may have checkpointed while we * were waiting for the checkpoint lock. If there are no - * outstanding transactions there is nothing to checkpoint and - * we can't make progress. Abort the journal in this case. + * transactions ready to be checkpointed, try to recover + * journal space by calling cleanup_journal_tail(), and if + * that doesn't work, by waiting for the currently committing + * transaction to complete. If there is absolutely no way + * to make progress, this is either a BUG or corrupted + * filesystem, so abort the journal and leave a stack + * trace for forensic evidence. */ spin_lock(&journal->j_state_lock); spin_lock(&journal->j_list_lock); nblocks = jbd_space_needed(journal); - if (__log_space_left(journal) < nblocks) { + space_left = __log_space_left(journal); + if (space_left < nblocks) { int chkpt = journal->j_checkpoint_transactions != NULL; + tid_t tid = 0; + if (journal->j_committing_transaction) + tid = journal->j_committing_transaction->t_tid; spin_unlock(&journal->j_list_lock); spin_unlock(&journal->j_state_lock); if (chkpt) { log_do_checkpoint(journal); + } else if (cleanup_journal_tail(journal) == 0) { + /* We were able to recover space; yay! */ + ; + } else if (tid) { + log_wait_commit(journal, tid); } else { - printk(KERN_ERR "%s: no transactions\n", - __func__); + printk(KERN_ERR "%s: needed %d blocks and " + "only had %d space available\n", + __func__, nblocks, space_left); + printk(KERN_ERR "%s: no way to get more " + "journal space\n", __func__); + WARN_ON(1); journal_abort(journal, 0); } - spin_lock(&journal->j_state_lock); } else { spin_unlock(&journal->j_list_lock); diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c index 9203c3332f1..9497718fe92 100644 --- a/fs/jbd2/checkpoint.c +++ b/fs/jbd2/checkpoint.c @@ -116,7 +116,7 @@ static int __try_to_free_cp_buf(struct journal_head *jh) */ void __jbd2_log_wait_for_space(journal_t *journal) { - int nblocks; + int nblocks, space_left; assert_spin_locked(&journal->j_state_lock); nblocks = jbd_space_needed(journal); @@ -129,25 +129,43 @@ void __jbd2_log_wait_for_space(journal_t *journal) /* * Test again, another process may have checkpointed while we * were waiting for the checkpoint lock. If there are no - * outstanding transactions there is nothing to checkpoint and - * we can't make progress. Abort the journal in this case. + * transactions ready to be checkpointed, try to recover + * journal space by calling cleanup_journal_tail(), and if + * that doesn't work, by waiting for the currently committing + * transaction to complete. If there is absolutely no way + * to make progress, this is either a BUG or corrupted + * filesystem, so abort the journal and leave a stack + * trace for forensic evidence. */ spin_lock(&journal->j_state_lock); spin_lock(&journal->j_list_lock); nblocks = jbd_space_needed(journal); - if (__jbd2_log_space_left(journal) < nblocks) { + space_left = __jbd2_log_space_left(journal); + if (space_left < nblocks) { int chkpt = journal->j_checkpoint_transactions != NULL; + tid_t tid = 0; + if (journal->j_committing_transaction) + tid = journal->j_committing_transaction->t_tid; spin_unlock(&journal->j_list_lock); spin_unlock(&journal->j_state_lock); if (chkpt) { jbd2_log_do_checkpoint(journal); + } else if (jbd2_cleanup_journal_tail(journal) == 0) { + /* We were able to recover space; yay! */ + ; + } else if (tid) { + jbd2_log_wait_commit(journal, tid); } else { - printk(KERN_ERR "%s: no transactions\n", - __func__); + printk(KERN_ERR "%s: needed %d blocks and " + "only had %d space available\n", + __func__, nblocks, space_left); + printk(KERN_ERR "%s: no way to get more " + "journal space in %s\n", __func__, + journal->j_devname); + WARN_ON(1); jbd2_journal_abort(journal, 0); } - spin_lock(&journal->j_state_lock); } else { spin_unlock(&journal->j_list_lock); diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c index 783de118de9..e70d657a19f 100644 --- a/fs/jbd2/journal.c +++ b/fs/jbd2/journal.c @@ -1089,6 +1089,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode) if (!journal->j_wbuf) { printk(KERN_ERR "%s: Cant allocate bhs for commit thread\n", __func__); + jbd2_stats_proc_exit(journal); kfree(journal); return NULL; } @@ -1098,6 +1099,7 @@ journal_t * jbd2_journal_init_inode (struct inode *inode) if (err) { printk(KERN_ERR "%s: Cannnot locate journal superblock\n", __func__); + jbd2_stats_proc_exit(journal); kfree(journal); return NULL; } diff --git a/fs/jffs2/background.c b/fs/jffs2/background.c index 8adebd3e43c..3cceef4ad2b 100644 --- a/fs/jffs2/background.c +++ b/fs/jffs2/background.c @@ -85,15 +85,15 @@ static int jffs2_garbage_collect_thread(void *_c) for (;;) { allow_signal(SIGHUP); again: + spin_lock(&c->erase_completion_lock); if (!jffs2_thread_should_wake(c)) { set_current_state (TASK_INTERRUPTIBLE); + spin_unlock(&c->erase_completion_lock); D1(printk(KERN_DEBUG "jffs2_garbage_collect_thread sleeping...\n")); - /* Yes, there's a race here; we checked jffs2_thread_should_wake() - before setting current->state to TASK_INTERRUPTIBLE. But it doesn't - matter - We don't care if we miss a wakeup, because the GC thread - is only an optimisation anyway. */ schedule(); - } + } else + spin_unlock(&c->erase_completion_lock); + /* This thread is purely an optimisation. But if it runs when other things could be running, it actually makes things a diff --git a/fs/jffs2/compr_lzo.c b/fs/jffs2/compr_lzo.c index 47b045797e4..90cb60d0978 100644 --- a/fs/jffs2/compr_lzo.c +++ b/fs/jffs2/compr_lzo.c @@ -19,7 +19,7 @@ static void *lzo_mem; static void *lzo_compress_buf; -static DEFINE_MUTEX(deflate_mutex); +static DEFINE_MUTEX(deflate_mutex); /* for lzo_mem and lzo_compress_buf */ static void free_workspace(void) { @@ -49,18 +49,21 @@ static int jffs2_lzo_compress(unsigned char *data_in, unsigned char *cpage_out, mutex_lock(&deflate_mutex); ret = lzo1x_1_compress(data_in, *sourcelen, lzo_compress_buf, &compress_size, lzo_mem); - mutex_unlock(&deflate_mutex); - if (ret != LZO_E_OK) - return -1; + goto fail; if (compress_size > *dstlen) - return -1; + goto fail; memcpy(cpage_out, lzo_compress_buf, compress_size); - *dstlen = compress_size; + mutex_unlock(&deflate_mutex); + *dstlen = compress_size; return 0; + + fail: + mutex_unlock(&deflate_mutex); + return -1; } static int jffs2_lzo_decompress(unsigned char *data_in, unsigned char *cpage_out, diff --git a/fs/jffs2/nodemgmt.c b/fs/jffs2/nodemgmt.c index 0875b60b4bf..21a052915aa 100644 --- a/fs/jffs2/nodemgmt.c +++ b/fs/jffs2/nodemgmt.c @@ -261,9 +261,11 @@ static int jffs2_find_nextblock(struct jffs2_sb_info *c) jffs2_sum_reset_collected(c->summary); /* reset collected summary */ +#ifdef CONFIG_JFFS2_FS_WRITEBUFFER /* adjust write buffer offset, else we get a non contiguous write bug */ if (!(c->wbuf_ofs % c->sector_size) && !c->wbuf_len) c->wbuf_ofs = 0xffffffff; +#endif D1(printk(KERN_DEBUG "jffs2_find_nextblock(): new nextblock = 0x%08x\n", c->nextblock->offset)); diff --git a/fs/msdos/Makefile b/fs/msdos/Makefile deleted file mode 100644 index ea67646fcb9..00000000000 --- a/fs/msdos/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for the Linux msdos filesystem routines. -# - -obj-$(CONFIG_MSDOS_FS) += msdos.o - -msdos-y := namei.o diff --git a/fs/vfat/Makefile b/fs/vfat/Makefile deleted file mode 100644 index 40f2798a4f0..00000000000 --- a/fs/vfat/Makefile +++ /dev/null @@ -1,7 +0,0 @@ -# -# Makefile for the linux vfat-filesystem routines. -# - -obj-$(CONFIG_VFAT_FS) += vfat.o - -vfat-y := namei.o diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h index ae060c62aff..18546d8eb78 100644 --- a/include/asm-generic/memory_model.h +++ b/include/asm-generic/memory_model.h @@ -34,7 +34,7 @@ #define __pfn_to_page(pfn) \ ({ unsigned long __pfn = (pfn); \ - unsigned long __nid = arch_pfn_to_nid(pfn); \ + unsigned long __nid = arch_pfn_to_nid(__pfn); \ NODE_DATA(__nid)->node_mem_map + arch_local_page_offset(__pfn, __nid);\ }) diff --git a/include/linux/bio.h b/include/linux/bio.h index 1c91a176b9a..6a642098e5c 100644 --- a/include/linux/bio.h +++ b/include/linux/bio.h @@ -236,12 +236,16 @@ static inline void *bio_data(struct bio *bio) #define __BVEC_END(bio) bio_iovec_idx((bio), (bio)->bi_vcnt - 1) #define __BVEC_START(bio) bio_iovec_idx((bio), (bio)->bi_idx) +/* Default implementation of BIOVEC_PHYS_MERGEABLE */ +#define __BIOVEC_PHYS_MERGEABLE(vec1, vec2) \ + ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2))) + /* * allow arch override, for eg virtualized architectures (put in asm/io.h) */ #ifndef BIOVEC_PHYS_MERGEABLE #define BIOVEC_PHYS_MERGEABLE(vec1, vec2) \ - ((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2))) + __BIOVEC_PHYS_MERGEABLE(vec1, vec2) #endif #define __BIO_SEG_BOUNDARY(addr1, addr2, mask) \ diff --git a/include/linux/cnt32_to_63.h b/include/linux/cnt32_to_63.h index 8c0f9505b48..7605fdd1eb6 100644 --- a/include/linux/cnt32_to_63.h +++ b/include/linux/cnt32_to_63.h @@ -16,6 +16,7 @@ #include <linux/compiler.h> #include <linux/types.h> #include <asm/byteorder.h> +#include <asm/system.h> /* this is used only to give gcc a clue about good code generation */ union cnt32_to_63 { @@ -53,11 +54,19 @@ union cnt32_to_63 { * needed increment. And any race in updating the value in memory is harmless * as the same value would simply be stored more than once. * - * The only restriction for the algorithm to work properly is that this - * code must be executed at least once per each half period of the 32-bit - * counter to properly update the state bit in memory. This is usually not a - * problem in practice, but if it is then a kernel timer could be scheduled - * to manage for this code to be executed often enough. + * The restrictions for the algorithm to work properly are: + * + * 1) this code must be called at least once per each half period of the + * 32-bit counter; + * + * 2) this code must not be preempted for a duration longer than the + * 32-bit counter half period minus the longest period between two + * calls to this code. + * + * Those requirements ensure proper update to the state bit in memory. + * This is usually not a problem in practice, but if it is then a kernel + * timer should be scheduled to manage for this code to be executed often + * enough. * * Note that the top bit (bit 63) in the returned value should be considered * as garbage. It is not cleared here because callers are likely to use a @@ -68,9 +77,10 @@ union cnt32_to_63 { */ #define cnt32_to_63(cnt_lo) \ ({ \ - static volatile u32 __m_cnt_hi; \ + static u32 __m_cnt_hi; \ union cnt32_to_63 __x; \ __x.hi = __m_cnt_hi; \ + smp_rmb(); \ __x.lo = (cnt_lo); \ if (unlikely((s32)(__x.hi ^ __x.lo) < 0)) \ __m_cnt_hi = __x.hi = (__x.hi ^ 0x80000000) + (__x.hi >> 31); \ diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h index 2b3645b1acf..07e510a3b00 100644 --- a/include/linux/hrtimer.h +++ b/include/linux/hrtimer.h @@ -239,7 +239,7 @@ static inline void hrtimer_add_expires(struct hrtimer *timer, ktime_t time) timer->_softexpires = ktime_add_safe(timer->_softexpires, time); } -static inline void hrtimer_add_expires_ns(struct hrtimer *timer, unsigned long ns) +static inline void hrtimer_add_expires_ns(struct hrtimer *timer, u64 ns) { timer->_expires = ktime_add_ns(timer->_expires, ns); timer->_softexpires = ktime_add_ns(timer->_softexpires, ns); diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 9e7b49b8062..a5cb0c3f6dc 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -114,6 +114,8 @@ extern u16 vlan_dev_vlan_id(const struct net_device *dev); extern int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, u16 vlan_tci, int polling); +extern int vlan_hwaccel_do_receive(struct sk_buff *skb); + #else static inline struct net_device *vlan_dev_real_dev(const struct net_device *dev) { @@ -133,6 +135,11 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, BUG(); return NET_XMIT_SUCCESS; } + +static inline int vlan_hwaccel_do_receive(struct sk_buff *skb) +{ + return 0; +} #endif /** diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index ee6e822d599..403aa505f27 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -130,7 +130,7 @@ struct mmc_card { #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR) #define mmc_card_name(c) ((c)->cid.prod_name) -#define mmc_card_id(c) ((c)->dev.bus_id) +#define mmc_card_id(c) (dev_name(&(c)->dev)) #define mmc_list_to_card(l) container_of(l, struct mmc_card, node) #define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev) diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index bde891f6459..f842f234e44 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -176,7 +176,7 @@ static inline void *mmc_priv(struct mmc_host *host) #define mmc_dev(x) ((x)->parent) #define mmc_classdev(x) (&(x)->class_dev) -#define mmc_hostname(x) ((x)->class_dev.bus_id) +#define mmc_hostname(x) (dev_name(&(x)->class_dev)) extern int mmc_suspend_host(struct mmc_host *, pm_message_t); extern int mmc_resume_host(struct mmc_host *); diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h index 07bee4a0d45..451bdfc8583 100644 --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -63,7 +63,7 @@ struct sdio_func { #define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT) -#define sdio_func_id(f) ((f)->dev.bus_id) +#define sdio_func_id(f) (dev_name(&(f)->dev)) #define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev) #define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d) diff --git a/include/linux/msdos_fs.h b/include/linux/msdos_fs.h index ba63858056c..e0a9b207920 100644 --- a/include/linux/msdos_fs.h +++ b/include/linux/msdos_fs.h @@ -46,11 +46,6 @@ #define DELETED_FLAG 0xe5 /* marks file as deleted when in name[0] */ #define IS_FREE(n) (!*(n) || *(n) == DELETED_FLAG) -/* valid file mode bits */ -#define MSDOS_VALID_MODE (S_IFREG | S_IFDIR | S_IRWXU | S_IRWXG | S_IRWXO) -/* Convert attribute bits and a mask to the UNIX mode. */ -#define MSDOS_MKMODE(a, m) (m & (a & ATTR_RO ? S_IRUGO|S_IXUGO : S_IRWXUGO)) - #define MSDOS_NAME 11 /* maximum name length */ #define MSDOS_LONGNAME 256 /* maximum name length */ #define MSDOS_SLOTS 21 /* max # of slots for short and long names */ @@ -167,282 +162,10 @@ struct msdos_dir_slot { }; #ifdef __KERNEL__ - -#include <linux/buffer_head.h> -#include <linux/string.h> -#include <linux/nls.h> -#include <linux/fs.h> -#include <linux/mutex.h> - -/* - * vfat shortname flags - */ -#define VFAT_SFN_DISPLAY_LOWER 0x0001 /* convert to lowercase for display */ -#define VFAT_SFN_DISPLAY_WIN95 0x0002 /* emulate win95 rule for display */ -#define VFAT_SFN_DISPLAY_WINNT 0x0004 /* emulate winnt rule for display */ -#define VFAT_SFN_CREATE_WIN95 0x0100 /* emulate win95 rule for create */ -#define VFAT_SFN_CREATE_WINNT 0x0200 /* emulate winnt rule for create */ - -struct fat_mount_options { - uid_t fs_uid; - gid_t fs_gid; - unsigned short fs_fmask; - unsigned short fs_dmask; - unsigned short codepage; /* Codepage for shortname conversions */ - char *iocharset; /* Charset used for filename input/display */ - unsigned short shortname; /* flags for shortname display/create rule */ - unsigned char name_check; /* r = relaxed, n = normal, s = strict */ - unsigned short allow_utime;/* permission for setting the [am]time */ - unsigned quiet:1, /* set = fake successful chmods and chowns */ - showexec:1, /* set = only set x bit for com/exe/bat */ - sys_immutable:1, /* set = system files are immutable */ - dotsOK:1, /* set = hidden and system files are named '.filename' */ - isvfat:1, /* 0=no vfat long filename support, 1=vfat support */ - utf8:1, /* Use of UTF-8 character set (Default) */ - unicode_xlate:1, /* create escape sequences for unhandled Unicode */ - numtail:1, /* Does first alias have a numeric '~1' type tail? */ - flush:1, /* write things quickly */ - nocase:1, /* Does this need case conversion? 0=need case conversion*/ - usefree:1, /* Use free_clusters for FAT32 */ - tz_utc:1; /* Filesystem timestamps are in UTC */ -}; - -#define FAT_HASH_BITS 8 -#define FAT_HASH_SIZE (1UL << FAT_HASH_BITS) -#define FAT_HASH_MASK (FAT_HASH_SIZE-1) - -/* - * MS-DOS file system in-core superblock data - */ -struct msdos_sb_info { - unsigned short sec_per_clus; /* sectors/cluster */ - unsigned short cluster_bits; /* log2(cluster_size) */ - unsigned int cluster_size; /* cluster size */ - unsigned char fats,fat_bits; /* number of FATs, FAT bits (12 or 16) */ - unsigned short fat_start; - unsigned long fat_length; /* FAT start & length (sec.) */ - unsigned long dir_start; - unsigned short dir_entries; /* root dir start & entries */ - unsigned long data_start; /* first data sector */ - unsigned long max_cluster; /* maximum cluster number */ - unsigned long root_cluster; /* first cluster of the root directory */ - unsigned long fsinfo_sector; /* sector number of FAT32 fsinfo */ - struct mutex fat_lock; - unsigned int prev_free; /* previously allocated cluster number */ - unsigned int free_clusters; /* -1 if undefined */ - unsigned int free_clus_valid; /* is free_clusters valid? */ - struct fat_mount_options options; - struct nls_table *nls_disk; /* Codepage used on disk */ - struct nls_table *nls_io; /* Charset used for input and display */ - const void *dir_ops; /* Opaque; default directory operations */ - int dir_per_block; /* dir entries per block */ - int dir_per_block_bits; /* log2(dir_per_block) */ - - int fatent_shift; - struct fatent_operations *fatent_ops; - - spinlock_t inode_hash_lock; - struct hlist_head inode_hashtable[FAT_HASH_SIZE]; -}; - -#define FAT_CACHE_VALID 0 /* special case for valid cache */ - -/* - * MS-DOS file system inode data in memory - */ -struct msdos_inode_info { - spinlock_t cache_lru_lock; - struct list_head cache_lru; - int nr_caches; - /* for avoiding the race between fat_free() and fat_get_cluster() */ - unsigned int cache_valid_id; - - loff_t mmu_private; - int i_start; /* first cluster or 0 */ - int i_logstart; /* logical first cluster */ - int i_attrs; /* unused attribute bits */ - loff_t i_pos; /* on-disk position of directory entry or 0 */ - struct hlist_node i_fat_hash; /* hash by i_location */ - struct inode vfs_inode; -}; - -struct fat_slot_info { - loff_t i_pos; /* on-disk position of directory entry */ - loff_t slot_off; /* offset for slot or de start */ - int nr_slots; /* number of slots + 1(de) in filename */ - struct msdos_dir_entry *de; - struct buffer_head *bh; -}; - -static inline struct msdos_sb_info *MSDOS_SB(struct super_block *sb) -{ - return sb->s_fs_info; -} - -static inline struct msdos_inode_info *MSDOS_I(struct inode *inode) -{ - return container_of(inode, struct msdos_inode_info, vfs_inode); -} - -/* Return the FAT attribute byte for this inode */ -static inline u8 fat_attr(struct inode *inode) -{ - return ((inode->i_mode & S_IWUGO) ? ATTR_NONE : ATTR_RO) | - (S_ISDIR(inode->i_mode) ? ATTR_DIR : ATTR_NONE) | - MSDOS_I(inode)->i_attrs; -} - -static inline unsigned char fat_checksum(const __u8 *name) -{ - unsigned char s = name[0]; - s = (s<<7) + (s>>1) + name[1]; s = (s<<7) + (s>>1) + name[2]; - s = (s<<7) + (s>>1) + name[3]; s = (s<<7) + (s>>1) + name[4]; - s = (s<<7) + (s>>1) + name[5]; s = (s<<7) + (s>>1) + name[6]; - s = (s<<7) + (s>>1) + name[7]; s = (s<<7) + (s>>1) + name[8]; - s = (s<<7) + (s>>1) + name[9]; s = (s<<7) + (s>>1) + name[10]; - return s; -} - -static inline sector_t fat_clus_to_blknr(struct msdos_sb_info *sbi, int clus) -{ - return ((sector_t)clus - FAT_START_ENT) * sbi->sec_per_clus - + sbi->data_start; -} - -static inline void fat16_towchar(wchar_t *dst, const __u8 *src, size_t len) -{ -#ifdef __BIG_ENDIAN - while (len--) { - *dst++ = src[0] | (src[1] << 8); - src += 2; - } -#else - memcpy(dst, src, len * 2); -#endif -} - -static inline void fatwchar_to16(__u8 *dst, const wchar_t *src, size_t len) -{ -#ifdef __BIG_ENDIAN - while (len--) { - dst[0] = *src & 0x00FF; - dst[1] = (*src & 0xFF00) >> 8; - dst += 2; - src++; - } -#else - memcpy(dst, src, len * 2); -#endif -} - /* media of boot sector */ static inline int fat_valid_media(u8 media) { return 0xf8 <= media || media == 0xf0; } - -/* fat/cache.c */ -extern void fat_cache_inval_inode(struct inode *inode); -extern int fat_get_cluster(struct inode *inode, int cluster, - int *fclus, int *dclus); -extern int fat_bmap(struct inode *inode, sector_t sector, sector_t *phys, - unsigned long *mapped_blocks); - -/* fat/dir.c */ -extern const struct file_operations fat_dir_operations; -extern int fat_search_long(struct inode *inode, const unsigned char *name, - int name_len, struct fat_slot_info *sinfo); -extern int fat_dir_empty(struct inode *dir); -extern int fat_subdirs(struct inode *dir); -extern int fat_scan(struct inode *dir, const unsigned char *name, - struct fat_slot_info *sinfo); -extern int fat_get_dotdot_entry(struct inode *dir, struct buffer_head **bh, - struct msdos_dir_entry **de, loff_t *i_pos); -extern int fat_alloc_new_dir(struct inode *dir, struct timespec *ts); -extern int fat_add_entries(struct inode *dir, void *slots, int nr_slots, - struct fat_slot_info *sinfo); -extern int fat_remove_entries(struct inode *dir, struct fat_slot_info *sinfo); - -/* fat/fatent.c */ -struct fat_entry { - int entry; - union { - u8 *ent12_p[2]; - __le16 *ent16_p; - __le32 *ent32_p; - } u; - int nr_bhs; - struct buffer_head *bhs[2]; -}; - -static inline void fatent_init(struct fat_entry *fatent) -{ - fatent->nr_bhs = 0; - fatent->entry = 0; - fatent->u.ent32_p = NULL; - fatent->bhs[0] = fatent->bhs[1] = NULL; -} - -static inline void fatent_set_entry(struct fat_entry *fatent, int entry) -{ - fatent->entry = entry; - fatent->u.ent32_p = NULL; -} - -static inline void fatent_brelse(struct fat_entry *fatent) -{ - int i; - fatent->u.ent32_p = NULL; - for (i = 0; i < fatent->nr_bhs; i++) - brelse(fatent->bhs[i]); - fatent->nr_bhs = 0; - fatent->bhs[0] = fatent->bhs[1] = NULL; -} - -extern void fat_ent_access_init(struct super_block *sb); -extern int fat_ent_read(struct inode *inode, struct fat_entry *fatent, - int entry); -extern int fat_ent_write(struct inode *inode, struct fat_entry *fatent, - int new, int wait); -extern int fat_alloc_clusters(struct inode *inode, int *cluster, - int nr_cluster); -extern int fat_free_clusters(struct inode *inode, int cluster); -extern int fat_count_free_clusters(struct super_block *sb); - -/* fat/file.c */ -extern int fat_generic_ioctl(struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg); -extern const struct file_operations fat_file_operations; -extern const struct inode_operations fat_file_inode_operations; -extern int fat_setattr(struct dentry * dentry, struct iattr * attr); -extern void fat_truncate(struct inode *inode); -extern int fat_getattr(struct vfsmount *mnt, struct dentry *dentry, - struct kstat *stat); - -/* fat/inode.c */ -extern void fat_attach(struct inode *inode, loff_t i_pos); -extern void fat_detach(struct inode *inode); -extern struct inode *fat_iget(struct super_block *sb, loff_t i_pos); -extern struct inode *fat_build_inode(struct super_block *sb, - struct msdos_dir_entry *de, loff_t i_pos); -extern int fat_sync_inode(struct inode *inode); -extern int fat_fill_super(struct super_block *sb, void *data, int silent, - const struct inode_operations *fs_dir_inode_ops, int isvfat); - -extern int fat_flush_inodes(struct super_block *sb, struct inode *i1, - struct inode *i2); -/* fat/misc.c */ -extern void fat_fs_panic(struct super_block *s, const char *fmt, ...); -extern void fat_clusters_flush(struct super_block *sb); -extern int fat_chain_add(struct inode *inode, int new_dclus, int nr_cluster); -extern int date_dos2unix(unsigned short time, unsigned short date, int tz_utc); -extern void fat_date_unix2dos(int unix_date, __le16 *time, __le16 *date, - int tz_utc); -extern int fat_sync_bhs(struct buffer_head **bhs, int nr_bhs); - -int fat_cache_init(void); -void fat_cache_destroy(void); - -#endif /* __KERNEL__ */ - -#endif +#endif /* !__KERNEL__ */ +#endif /* !_LINUX_MSDOS_FS_H */ diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h index ee5124ec319..00e2b575021 100644 --- a/include/linux/mtd/cfi.h +++ b/include/linux/mtd/cfi.h @@ -282,9 +282,25 @@ struct cfi_private { /* * Returns the command address according to the given geometry. */ -static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, int interleave, int type) +static inline uint32_t cfi_build_cmd_addr(uint32_t cmd_ofs, + struct map_info *map, struct cfi_private *cfi) { - return (cmd_ofs * type) * interleave; + unsigned bankwidth = map_bankwidth(map); + unsigned interleave = cfi_interleave(cfi); + unsigned type = cfi->device_type; + uint32_t addr; + + addr = (cmd_ofs * type) * interleave; + + /* Modify the unlock address if we are in compatiblity mode. + * For 16bit devices on 8 bit busses + * and 32bit devices on 16 bit busses + * set the low bit of the alternating bit sequence of the address. + */ + if (((type * interleave) > bankwidth) && ((uint8_t)cmd_ofs == 0xaa)) + addr |= (type >> 1)*interleave; + + return addr; } /* @@ -430,7 +446,7 @@ static inline uint32_t cfi_send_gen_cmd(u_char cmd, uint32_t cmd_addr, uint32_t int type, map_word *prev_val) { map_word val; - uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, cfi_interleave(cfi), type); + uint32_t addr = base + cfi_build_cmd_addr(cmd_addr, map, cfi); val = cfi_build_cmd(cmd, map, cfi); if (prev_val) diff --git a/include/linux/pci.h b/include/linux/pci.h index c75b82bda32..feb4657bb04 100644 --- a/include/linux/pci.h +++ b/include/linux/pci.h @@ -1136,7 +1136,7 @@ static inline void pci_mmcfg_late_init(void) { } #endif #ifdef CONFIG_HAS_IOMEM -static inline void * pci_ioremap_bar(struct pci_dev *pdev, int bar) +static inline void __iomem *pci_ioremap_bar(struct pci_dev *pdev, int bar) { /* * Make sure the BAR is actually a memory resource, not an IO resource diff --git a/include/linux/sched.h b/include/linux/sched.h index b483f39a711..295b7c756ca 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1349,6 +1349,8 @@ struct task_struct { */ unsigned long timer_slack_ns; unsigned long default_timer_slack_ns; + + struct list_head *scm_work_list; }; /* diff --git a/include/linux/timer.h b/include/linux/timer.h index d4ba79248a2..daf9685b861 100644 --- a/include/linux/timer.h +++ b/include/linux/timer.h @@ -186,4 +186,9 @@ unsigned long __round_jiffies_relative(unsigned long j, int cpu); unsigned long round_jiffies(unsigned long j); unsigned long round_jiffies_relative(unsigned long j); +unsigned long __round_jiffies_up(unsigned long j, int cpu); +unsigned long __round_jiffies_up_relative(unsigned long j, int cpu); +unsigned long round_jiffies_up(unsigned long j); +unsigned long round_jiffies_up_relative(unsigned long j); + #endif diff --git a/include/linux/topology.h b/include/linux/topology.h index 2158fc0d5a5..117f1b7405c 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -99,7 +99,7 @@ void arch_update_cpu_topology(void); | SD_BALANCE_FORK \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ - | SD_WAKE_IDLE \ + | SD_WAKE_BALANCE \ | SD_SHARE_CPUPOWER, \ .last_balance = jiffies, \ .balance_interval = 1, \ @@ -120,10 +120,10 @@ void arch_update_cpu_topology(void); .wake_idx = 1, \ .forkexec_idx = 1, \ .flags = SD_LOAD_BALANCE \ - | SD_BALANCE_NEWIDLE \ | SD_BALANCE_FORK \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ + | SD_WAKE_BALANCE \ | SD_SHARE_PKG_RESOURCES\ | BALANCE_FOR_MC_POWER, \ .last_balance = jiffies, \ @@ -146,10 +146,10 @@ void arch_update_cpu_topology(void); .wake_idx = 1, \ .forkexec_idx = 1, \ .flags = SD_LOAD_BALANCE \ - | SD_BALANCE_NEWIDLE \ - | SD_BALANCE_FORK \ | SD_BALANCE_EXEC \ + | SD_BALANCE_FORK \ | SD_WAKE_AFFINE \ + | SD_WAKE_BALANCE \ | BALANCE_FOR_PKG_POWER,\ .last_balance = jiffies, \ .balance_interval = 1, \ diff --git a/include/net/af_unix.h b/include/net/af_unix.h index 7dd29b7e461..c29ff1da8a1 100644 --- a/include/net/af_unix.h +++ b/include/net/af_unix.h @@ -54,6 +54,7 @@ struct unix_sock { atomic_long_t inflight; spinlock_t lock; unsigned int gc_candidate : 1; + unsigned int gc_maybe_cycle : 1; wait_queue_head_t peer_wait; }; #define unix_sk(__sk) ((struct unix_sock *)__sk) diff --git a/include/net/scm.h b/include/net/scm.h index 06df126103c..33e9986beb8 100644 --- a/include/net/scm.h +++ b/include/net/scm.h @@ -14,8 +14,9 @@ struct scm_fp_list { - int count; - struct file *fp[SCM_MAX_FD]; + struct list_head list; + int count; + struct file *fp[SCM_MAX_FD]; }; struct scm_cookie diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 35eebd5510c..358e77564e6 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -2497,7 +2497,6 @@ static int cgroup_rmdir(struct inode *unused_dir, struct dentry *dentry) list_del(&cgrp->sibling); spin_lock(&cgrp->dentry->d_lock); d = dget(cgrp->dentry); - cgrp->dentry = NULL; spin_unlock(&d->d_lock); cgroup_d_remove_dir(d); diff --git a/kernel/sched.c b/kernel/sched.c index e8819bc6f46..57c933ffbee 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -397,7 +397,7 @@ struct cfs_rq { * 'curr' points to currently running entity on this cfs_rq. * It is set to NULL otherwise (i.e when none are currently running). */ - struct sched_entity *curr, *next; + struct sched_entity *curr, *next, *last; unsigned long nr_spread_over; @@ -1805,7 +1805,9 @@ task_hot(struct task_struct *p, u64 now, struct sched_domain *sd) /* * Buddy candidates are cache hot: */ - if (sched_feat(CACHE_HOT_BUDDY) && (&p->se == cfs_rq_of(&p->se)->next)) + if (sched_feat(CACHE_HOT_BUDDY) && + (&p->se == cfs_rq_of(&p->se)->next || + &p->se == cfs_rq_of(&p->se)->last)) return 1; if (p->sched_class != &fair_sched_class) @@ -6875,15 +6877,17 @@ cpu_attach_domain(struct sched_domain *sd, struct root_domain *rd, int cpu) struct sched_domain *tmp; /* Remove the sched domains which do not contribute to scheduling. */ - for (tmp = sd; tmp; tmp = tmp->parent) { + for (tmp = sd; tmp; ) { struct sched_domain *parent = tmp->parent; if (!parent) break; + if (sd_parent_degenerate(tmp, parent)) { tmp->parent = parent->parent; if (parent->parent) parent->parent->child = tmp; - } + } else + tmp = tmp->parent; } if (sd && sd_degenerate(sd)) { @@ -7672,6 +7676,7 @@ static int __build_sched_domains(const cpumask_t *cpu_map, error: free_sched_groups(cpu_map, tmpmask); SCHED_CPUMASK_FREE((void *)allmasks); + kfree(rd); return -ENOMEM; #endif } diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index ce514afd78f..51aa3e102ac 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -341,23 +341,20 @@ static void __dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) cfs_rq->rb_leftmost = next_node; } - if (cfs_rq->next == se) - cfs_rq->next = NULL; - rb_erase(&se->run_node, &cfs_rq->tasks_timeline); } -static inline struct rb_node *first_fair(struct cfs_rq *cfs_rq) -{ - return cfs_rq->rb_leftmost; -} - static struct sched_entity *__pick_next_entity(struct cfs_rq *cfs_rq) { - return rb_entry(first_fair(cfs_rq), struct sched_entity, run_node); + struct rb_node *left = cfs_rq->rb_leftmost; + + if (!left) + return NULL; + + return rb_entry(left, struct sched_entity, run_node); } -static inline struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq) +static struct sched_entity *__pick_last_entity(struct cfs_rq *cfs_rq) { struct rb_node *last = rb_last(&cfs_rq->tasks_timeline); @@ -741,6 +738,12 @@ dequeue_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int sleep) #endif } + if (cfs_rq->last == se) + cfs_rq->last = NULL; + + if (cfs_rq->next == se) + cfs_rq->next = NULL; + if (se != cfs_rq->curr) __dequeue_entity(cfs_rq, se); account_entity_dequeue(cfs_rq, se); @@ -794,24 +797,15 @@ set_next_entity(struct cfs_rq *cfs_rq, struct sched_entity *se) static int wakeup_preempt_entity(struct sched_entity *curr, struct sched_entity *se); -static struct sched_entity * -pick_next(struct cfs_rq *cfs_rq, struct sched_entity *se) -{ - if (!cfs_rq->next || wakeup_preempt_entity(cfs_rq->next, se) == 1) - return se; - - return cfs_rq->next; -} - static struct sched_entity *pick_next_entity(struct cfs_rq *cfs_rq) { - struct sched_entity *se = NULL; + struct sched_entity *se = __pick_next_entity(cfs_rq); - if (first_fair(cfs_rq)) { - se = __pick_next_entity(cfs_rq); - se = pick_next(cfs_rq, se); - set_next_entity(cfs_rq, se); - } + if (cfs_rq->next && wakeup_preempt_entity(cfs_rq->next, se) < 1) + return cfs_rq->next; + + if (cfs_rq->last && wakeup_preempt_entity(cfs_rq->last, se) < 1) + return cfs_rq->last; return se; } @@ -1325,26 +1319,53 @@ wakeup_preempt_entity(struct sched_entity *curr, struct sched_entity *se) return 0; } +static void set_last_buddy(struct sched_entity *se) +{ + for_each_sched_entity(se) + cfs_rq_of(se)->last = se; +} + +static void set_next_buddy(struct sched_entity *se) +{ + for_each_sched_entity(se) + cfs_rq_of(se)->next = se; +} + /* * Preempt the current task with a newly woken task if needed: */ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int sync) { struct task_struct *curr = rq->curr; - struct cfs_rq *cfs_rq = task_cfs_rq(curr); struct sched_entity *se = &curr->se, *pse = &p->se; if (unlikely(rt_prio(p->prio))) { + struct cfs_rq *cfs_rq = task_cfs_rq(curr); + update_rq_clock(rq); update_curr(cfs_rq); resched_task(curr); return; } + if (unlikely(p->sched_class != &fair_sched_class)) + return; + if (unlikely(se == pse)) return; - cfs_rq_of(pse)->next = pse; + /* + * Only set the backward buddy when the current task is still on the + * rq. This can happen when a wakeup gets interleaved with schedule on + * the ->pre_schedule() or idle_balance() point, either of which can + * drop the rq lock. + * + * Also, during early boot the idle thread is in the fair class, for + * obvious reasons its a bad idea to schedule back to the idle thread. + */ + if (sched_feat(LAST_BUDDY) && likely(se->on_rq && curr != rq->idle)) + set_last_buddy(se); + set_next_buddy(pse); /* * We can come here with TIF_NEED_RESCHED already set from new task @@ -1396,6 +1417,7 @@ static struct task_struct *pick_next_task_fair(struct rq *rq) do { se = pick_next_entity(cfs_rq); + set_next_entity(cfs_rq, se); cfs_rq = group_cfs_rq(se); } while (cfs_rq); diff --git a/kernel/sched_features.h b/kernel/sched_features.h index fda01621829..da5d93b5d2c 100644 --- a/kernel/sched_features.h +++ b/kernel/sched_features.h @@ -12,3 +12,4 @@ SCHED_FEAT(LB_BIAS, 1) SCHED_FEAT(LB_WAKEUP_UPDATE, 1) SCHED_FEAT(ASYM_EFF_LOAD, 1) SCHED_FEAT(WAKEUP_OVERLAP, 0) +SCHED_FEAT(LAST_BUDDY, 1) diff --git a/kernel/smp.c b/kernel/smp.c index f362a855377..75c8dde58c5 100644 --- a/kernel/smp.c +++ b/kernel/smp.c @@ -51,10 +51,6 @@ static void csd_flag_wait(struct call_single_data *data) { /* Wait for response */ do { - /* - * We need to see the flags store in the IPI handler - */ - smp_mb(); if (!(data->flags & CSD_FLAG_WAIT)) break; cpu_relax(); @@ -76,6 +72,11 @@ static void generic_exec_single(int cpu, struct call_single_data *data) list_add_tail(&data->list, &dst->list); spin_unlock_irqrestore(&dst->lock, flags); + /* + * Make the list addition visible before sending the ipi. + */ + smp_mb(); + if (ipi) arch_send_call_function_single_ipi(cpu); @@ -157,7 +158,7 @@ void generic_smp_call_function_single_interrupt(void) * Need to see other stores to list head for checking whether * list is empty without holding q->lock */ - smp_mb(); + smp_read_barrier_depends(); while (!list_empty(&q->list)) { unsigned int data_flags; @@ -191,7 +192,7 @@ void generic_smp_call_function_single_interrupt(void) /* * See comment on outer loop */ - smp_mb(); + smp_read_barrier_depends(); } } @@ -370,6 +371,11 @@ int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info, list_add_tail_rcu(&data->csd.list, &call_function_queue); spin_unlock_irqrestore(&call_function_lock, flags); + /* + * Make the list addition visible before sending the ipi. + */ + smp_mb(); + /* Send a message to all CPUs in the map */ arch_send_call_function_ipi(mask); diff --git a/kernel/timer.c b/kernel/timer.c index 56becf373c5..dbd50fabe4c 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -112,27 +112,8 @@ timer_set_base(struct timer_list *timer, struct tvec_base *new_base) tbase_get_deferrable(timer->base)); } -/** - * __round_jiffies - function to round jiffies to a full second - * @j: the time in (absolute) jiffies that should be rounded - * @cpu: the processor number on which the timeout will happen - * - * __round_jiffies() rounds an absolute time in the future (in jiffies) - * up or down to (approximately) full seconds. This is useful for timers - * for which the exact time they fire does not matter too much, as long as - * they fire approximately every X seconds. - * - * By rounding these timers to whole seconds, all such timers will fire - * at the same time, rather than at various times spread out. The goal - * of this is to have the CPU wake up less, which saves power. - * - * The exact rounding is skewed for each processor to avoid all - * processors firing at the exact same time, which could lead - * to lock contention or spurious cache line bouncing. - * - * The return value is the rounded version of the @j parameter. - */ -unsigned long __round_jiffies(unsigned long j, int cpu) +static unsigned long round_jiffies_common(unsigned long j, int cpu, + bool force_up) { int rem; unsigned long original = j; @@ -154,8 +135,9 @@ unsigned long __round_jiffies(unsigned long j, int cpu) * due to delays of the timer irq, long irq off times etc etc) then * we should round down to the whole second, not up. Use 1/4th second * as cutoff for this rounding as an extreme upper bound for this. + * But never round down if @force_up is set. */ - if (rem < HZ/4) /* round down */ + if (rem < HZ/4 && !force_up) /* round down */ j = j - rem; else /* round up */ j = j - rem + HZ; @@ -167,6 +149,31 @@ unsigned long __round_jiffies(unsigned long j, int cpu) return original; return j; } + +/** + * __round_jiffies - function to round jiffies to a full second + * @j: the time in (absolute) jiffies that should be rounded + * @cpu: the processor number on which the timeout will happen + * + * __round_jiffies() rounds an absolute time in the future (in jiffies) + * up or down to (approximately) full seconds. This is useful for timers + * for which the exact time they fire does not matter too much, as long as + * they fire approximately every X seconds. + * + * By rounding these timers to whole seconds, all such timers will fire + * at the same time, rather than at various times spread out. The goal + * of this is to have the CPU wake up less, which saves power. + * + * The exact rounding is skewed for each processor to avoid all + * processors firing at the exact same time, which could lead + * to lock contention or spurious cache line bouncing. + * + * The return value is the rounded version of the @j parameter. + */ +unsigned long __round_jiffies(unsigned long j, int cpu) +{ + return round_jiffies_common(j, cpu, false); +} EXPORT_SYMBOL_GPL(__round_jiffies); /** @@ -191,13 +198,10 @@ EXPORT_SYMBOL_GPL(__round_jiffies); */ unsigned long __round_jiffies_relative(unsigned long j, int cpu) { - /* - * In theory the following code can skip a jiffy in case jiffies - * increments right between the addition and the later subtraction. - * However since the entire point of this function is to use approximate - * timeouts, it's entirely ok to not handle that. - */ - return __round_jiffies(j + jiffies, cpu) - jiffies; + unsigned long j0 = jiffies; + + /* Use j0 because jiffies might change while we run */ + return round_jiffies_common(j + j0, cpu, false) - j0; } EXPORT_SYMBOL_GPL(__round_jiffies_relative); @@ -218,7 +222,7 @@ EXPORT_SYMBOL_GPL(__round_jiffies_relative); */ unsigned long round_jiffies(unsigned long j) { - return __round_jiffies(j, raw_smp_processor_id()); + return round_jiffies_common(j, raw_smp_processor_id(), false); } EXPORT_SYMBOL_GPL(round_jiffies); @@ -243,6 +247,71 @@ unsigned long round_jiffies_relative(unsigned long j) } EXPORT_SYMBOL_GPL(round_jiffies_relative); +/** + * __round_jiffies_up - function to round jiffies up to a full second + * @j: the time in (absolute) jiffies that should be rounded + * @cpu: the processor number on which the timeout will happen + * + * This is the same as __round_jiffies() except that it will never + * round down. This is useful for timeouts for which the exact time + * of firing does not matter too much, as long as they don't fire too + * early. + */ +unsigned long __round_jiffies_up(unsigned long j, int cpu) +{ + return round_jiffies_common(j, cpu, true); +} +EXPORT_SYMBOL_GPL(__round_jiffies_up); + +/** + * __round_jiffies_up_relative - function to round jiffies up to a full second + * @j: the time in (relative) jiffies that should be rounded + * @cpu: the processor number on which the timeout will happen + * + * This is the same as __round_jiffies_relative() except that it will never + * round down. This is useful for timeouts for which the exact time + * of firing does not matter too much, as long as they don't fire too + * early. + */ +unsigned long __round_jiffies_up_relative(unsigned long j, int cpu) +{ + unsigned long j0 = jiffies; + + /* Use j0 because jiffies might change while we run */ + return round_jiffies_common(j + j0, cpu, true) - j0; +} +EXPORT_SYMBOL_GPL(__round_jiffies_up_relative); + +/** + * round_jiffies_up - function to round jiffies up to a full second + * @j: the time in (absolute) jiffies that should be rounded + * + * This is the same as round_jiffies() except that it will never + * round down. This is useful for timeouts for which the exact time + * of firing does not matter too much, as long as they don't fire too + * early. + */ +unsigned long round_jiffies_up(unsigned long j) +{ + return round_jiffies_common(j, raw_smp_processor_id(), true); +} +EXPORT_SYMBOL_GPL(round_jiffies_up); + +/** + * round_jiffies_up_relative - function to round jiffies up to a full second + * @j: the time in (relative) jiffies that should be rounded + * + * This is the same as round_jiffies_relative() except that it will never + * round down. This is useful for timeouts for which the exact time + * of firing does not matter too much, as long as they don't fire too + * early. + */ +unsigned long round_jiffies_up_relative(unsigned long j) +{ + return __round_jiffies_up_relative(j, raw_smp_processor_id()); +} +EXPORT_SYMBOL_GPL(round_jiffies_up_relative); + static inline void set_running_timer(struct tvec_base *base, struct timer_list *timer) diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 421aee99b84..d143ab67be4 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -354,11 +354,26 @@ static int vma_has_reserves(struct vm_area_struct *vma) return 0; } +static void clear_gigantic_page(struct page *page, + unsigned long addr, unsigned long sz) +{ + int i; + struct page *p = page; + + might_sleep(); + for (i = 0; i < sz/PAGE_SIZE; i++, p = mem_map_next(p, page, i)) { + cond_resched(); + clear_user_highpage(p, addr + i * PAGE_SIZE); + } +} static void clear_huge_page(struct page *page, unsigned long addr, unsigned long sz) { int i; + if (unlikely(sz > MAX_ORDER_NR_PAGES)) + return clear_gigantic_page(page, addr, sz); + might_sleep(); for (i = 0; i < sz/PAGE_SIZE; i++) { cond_resched(); @@ -366,12 +381,32 @@ static void clear_huge_page(struct page *page, } } +static void copy_gigantic_page(struct page *dst, struct page *src, + unsigned long addr, struct vm_area_struct *vma) +{ + int i; + struct hstate *h = hstate_vma(vma); + struct page *dst_base = dst; + struct page *src_base = src; + might_sleep(); + for (i = 0; i < pages_per_huge_page(h); ) { + cond_resched(); + copy_user_highpage(dst, src, addr + i*PAGE_SIZE, vma); + + i++; + dst = mem_map_next(dst, dst_base, i); + src = mem_map_next(src, src_base, i); + } +} static void copy_huge_page(struct page *dst, struct page *src, unsigned long addr, struct vm_area_struct *vma) { int i; struct hstate *h = hstate_vma(vma); + if (unlikely(pages_per_huge_page(h) > MAX_ORDER_NR_PAGES)) + return copy_gigantic_page(dst, src, addr, vma); + might_sleep(); for (i = 0; i < pages_per_huge_page(h); i++) { cond_resched(); @@ -456,6 +491,8 @@ static void update_and_free_page(struct hstate *h, struct page *page) { int i; + VM_BUG_ON(h->order >= MAX_ORDER); + h->nr_huge_pages--; h->nr_huge_pages_node[page_to_nid(page)]--; for (i = 0; i < pages_per_huge_page(h); i++) { @@ -970,6 +1007,14 @@ found: return 1; } +static void prep_compound_huge_page(struct page *page, int order) +{ + if (unlikely(order > (MAX_ORDER - 1))) + prep_compound_gigantic_page(page, order); + else + prep_compound_page(page, order); +} + /* Put bootmem huge pages into the standard lists after mem_map is up */ static void __init gather_bootmem_prealloc(void) { @@ -980,7 +1025,7 @@ static void __init gather_bootmem_prealloc(void) struct hstate *h = m->hstate; __ClearPageReserved(page); WARN_ON(page_count(page) != 1); - prep_compound_page(page, h->order); + prep_compound_huge_page(page, h->order); prep_new_huge_page(h, page, page_to_nid(page)); } } @@ -2130,7 +2175,7 @@ same_page: if (zeropage_ok) pages[i] = ZERO_PAGE(0); else - pages[i] = page + pfn_offset; + pages[i] = mem_map_offset(page, pfn_offset); get_page(pages[i]); } diff --git a/mm/internal.h b/mm/internal.h index e4e728bdf32..13333bc2eb6 100644 --- a/mm/internal.h +++ b/mm/internal.h @@ -17,6 +17,7 @@ void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *start_vma, unsigned long floor, unsigned long ceiling); extern void prep_compound_page(struct page *page, unsigned long order); +extern void prep_compound_gigantic_page(struct page *page, unsigned long order); static inline void set_page_count(struct page *page, int v) { @@ -176,6 +177,34 @@ static inline void free_page_mlock(struct page *page) { } #endif /* CONFIG_UNEVICTABLE_LRU */ /* + * Return the mem_map entry representing the 'offset' subpage within + * the maximally aligned gigantic page 'base'. Handle any discontiguity + * in the mem_map at MAX_ORDER_NR_PAGES boundaries. + */ +static inline struct page *mem_map_offset(struct page *base, int offset) +{ + if (unlikely(offset >= MAX_ORDER_NR_PAGES)) + return pfn_to_page(page_to_pfn(base) + offset); + return base + offset; +} + +/* + * Iterator over all subpages withing the maximally aligned gigantic + * page 'base'. Handle any discontiguity in the mem_map. + */ +static inline struct page *mem_map_next(struct page *iter, + struct page *base, int offset) +{ + if (unlikely((offset & (MAX_ORDER_NR_PAGES - 1)) == 0)) { + unsigned long pfn = page_to_pfn(base) + offset; + if (!pfn_valid(pfn)) + return NULL; + return pfn_to_page(pfn); + } + return iter + 1; +} + +/* * FLATMEM and DISCONTIGMEM configurations use alloc_bootmem_node, * so all functions starting at paging_init should be marked __init * in those cases. SPARSEMEM, however, allows for memory hotplug, diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 36f42573a33..e9493b1c111 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -489,12 +489,6 @@ check_range(struct mm_struct *mm, unsigned long start, unsigned long end, int err; struct vm_area_struct *first, *vma, *prev; - if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { - - err = migrate_prep(); - if (err) - return ERR_PTR(err); - } first = find_vma(mm, start); if (!first) @@ -809,9 +803,13 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from_nodes, const nodemask_t *to_nodes, int flags) { int busy = 0; - int err = 0; + int err; nodemask_t tmp; + err = migrate_prep(); + if (err) + return err; + down_read(&mm->mmap_sem); err = migrate_vmas(mm, from_nodes, to_nodes, flags); @@ -974,6 +972,12 @@ static long do_mbind(unsigned long start, unsigned long len, start, start + len, mode, mode_flags, nmask ? nodes_addr(*nmask)[0] : -1); + if (flags & (MPOL_MF_MOVE | MPOL_MF_MOVE_ALL)) { + + err = migrate_prep(); + if (err) + return err; + } down_write(&mm->mmap_sem); vma = check_range(mm, start, end, nmask, flags | MPOL_MF_INVERT, &pagelist); diff --git a/mm/migrate.c b/mm/migrate.c index 6602941bfab..385db89f0c3 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -841,12 +841,12 @@ static int do_move_page_to_node_array(struct mm_struct *mm, struct page_to_node *pp; LIST_HEAD(pagelist); + migrate_prep(); down_read(&mm->mmap_sem); /* * Build a list of pages to migrate */ - migrate_prep(); for (pp = pm; pp->node != MAX_NUMNODES; pp++) { struct vm_area_struct *vma; struct page *page; diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 64e5b4bcd96..a0a01902f55 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -38,7 +38,6 @@ static DEFINE_SPINLOCK(zone_scan_mutex); * badness - calculate a numeric value for how bad this task has been * @p: task struct of which task we should calculate * @uptime: current uptime in seconds - * @mem: target memory controller * * The formula used is relatively simple and documented inline in the * function. The main rationale is that we want to select a good task @@ -295,6 +294,8 @@ static void dump_tasks(const struct mem_cgroup *mem) continue; if (mem && !task_in_mem_cgroup(p, mem)) continue; + if (!thread_group_leader(p)) + continue; task_lock(p); printk(KERN_INFO "[%5d] %5d %5d %8lu %8lu %3d %3d %s\n", diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d0a240fbb8b..54069e64e3a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -263,24 +263,39 @@ void prep_compound_page(struct page *page, unsigned long order) { int i; int nr_pages = 1 << order; + + set_compound_page_dtor(page, free_compound_page); + set_compound_order(page, order); + __SetPageHead(page); + for (i = 1; i < nr_pages; i++) { + struct page *p = page + i; + + __SetPageTail(p); + p->first_page = page; + } +} + +#ifdef CONFIG_HUGETLBFS +void prep_compound_gigantic_page(struct page *page, unsigned long order) +{ + int i; + int nr_pages = 1 << order; struct page *p = page + 1; set_compound_page_dtor(page, free_compound_page); set_compound_order(page, order); __SetPageHead(page); - for (i = 1; i < nr_pages; i++, p++) { - if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0)) - p = pfn_to_page(page_to_pfn(page) + i); + for (i = 1; i < nr_pages; i++, p = mem_map_next(p, page, i)) { __SetPageTail(p); p->first_page = page; } } +#endif static void destroy_compound_page(struct page *page, unsigned long order) { int i; int nr_pages = 1 << order; - struct page *p = page + 1; if (unlikely(compound_order(page) != order)) bad_page(page); @@ -288,9 +303,8 @@ static void destroy_compound_page(struct page *page, unsigned long order) if (unlikely(!PageHead(page))) bad_page(page); __ClearPageHead(page); - for (i = 1; i < nr_pages; i++, p++) { - if (unlikely((i & (MAX_ORDER_NR_PAGES - 1)) == 0)) - p = pfn_to_page(page_to_pfn(page) + i); + for (i = 1; i < nr_pages; i++) { + struct page *p = page + i; if (unlikely(!PageTail(p) | (p->first_page != page))) diff --git a/mm/page_isolation.c b/mm/page_isolation.c index b70a7fec1ff..5e0ffd96745 100644 --- a/mm/page_isolation.c +++ b/mm/page_isolation.c @@ -130,10 +130,11 @@ int test_pages_isolated(unsigned long start_pfn, unsigned long end_pfn) if (page && get_pageblock_migratetype(page) != MIGRATE_ISOLATE) break; } - if (pfn < end_pfn) + page = __first_valid_page(start_pfn, end_pfn - start_pfn); + if ((pfn < end_pfn) || !page) return -EBUSY; /* Check all pages are free or Marked as ISOLATED */ - zone = page_zone(pfn_to_page(pfn)); + zone = page_zone(page); spin_lock_irqsave(&zone->lock, flags); ret = __test_page_isolated_in_pageblock(start_pfn, end_pfn); spin_unlock_irqrestore(&zone->lock, flags); diff --git a/mm/sparse-vmemmap.c b/mm/sparse-vmemmap.c index a91b5f8fcaf..a13ea6401ae 100644 --- a/mm/sparse-vmemmap.c +++ b/mm/sparse-vmemmap.c @@ -64,7 +64,7 @@ void __meminit vmemmap_verify(pte_t *pte, int node, unsigned long pfn = pte_pfn(*pte); int actual_node = early_pfn_to_nid(pfn); - if (actual_node != node) + if (node_distance(actual_node, node) > LOCAL_DISTANCE) printk(KERN_WARNING "[%lx-%lx] potential offnode " "page_structs\n", start, end - 1); } diff --git a/mm/vmalloc.c b/mm/vmalloc.c index f1cc03bbf6a..ba6b0f5f7fa 100644 --- a/mm/vmalloc.c +++ b/mm/vmalloc.c @@ -178,7 +178,7 @@ static int vmap_page_range(unsigned long addr, unsigned long end, static inline int is_vmalloc_or_module_addr(const void *x) { /* - * x86-64 and sparc64 put modules in a special place, + * ARM, x86-64 and sparc64 put modules in a special place, * and fall back on vmalloc() if that fails. Others * just put it in the vmalloc space. */ @@ -592,6 +592,8 @@ static void free_unmap_vmap_area_addr(unsigned long addr) #define VMAP_BLOCK_SIZE (VMAP_BBMAP_BITS * PAGE_SIZE) +static bool vmap_initialized __read_mostly = false; + struct vmap_block_queue { spinlock_t lock; struct list_head free; @@ -828,6 +830,9 @@ void vm_unmap_aliases(void) int cpu; int flush = 0; + if (unlikely(!vmap_initialized)) + return; + for_each_possible_cpu(cpu) { struct vmap_block_queue *vbq = &per_cpu(vmap_block_queue, cpu); struct vmap_block *vb; @@ -942,6 +947,8 @@ void __init vmalloc_init(void) INIT_LIST_HEAD(&vbq->dirty); vbq->nr_dirty = 0; } + + vmap_initialized = true; } void unmap_kernel_range(unsigned long addr, unsigned long size) diff --git a/net/8021q/vlan_core.c b/net/8021q/vlan_core.c index 916061f681b..68ced4bf158 100644 --- a/net/8021q/vlan_core.c +++ b/net/8021q/vlan_core.c @@ -3,11 +3,20 @@ #include <linux/if_vlan.h> #include "vlan.h" +struct vlan_hwaccel_cb { + struct net_device *dev; +}; + +static inline struct vlan_hwaccel_cb *vlan_hwaccel_cb(struct sk_buff *skb) +{ + return (struct vlan_hwaccel_cb *)skb->cb; +} + /* VLAN rx hw acceleration helper. This acts like netif_{rx,receive_skb}(). */ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, u16 vlan_tci, int polling) { - struct net_device_stats *stats; + struct vlan_hwaccel_cb *cb = vlan_hwaccel_cb(skb); if (skb_bond_should_drop(skb)) { dev_kfree_skb_any(skb); @@ -15,23 +24,35 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, } skb->vlan_tci = vlan_tci; + cb->dev = vlan_group_get_device(grp, vlan_tci & VLAN_VID_MASK); + + return (polling ? netif_receive_skb(skb) : netif_rx(skb)); +} +EXPORT_SYMBOL(__vlan_hwaccel_rx); + +int vlan_hwaccel_do_receive(struct sk_buff *skb) +{ + struct vlan_hwaccel_cb *cb = vlan_hwaccel_cb(skb); + struct net_device *dev = cb->dev; + struct net_device_stats *stats; + netif_nit_deliver(skb); - skb->dev = vlan_group_get_device(grp, vlan_tci & VLAN_VID_MASK); - if (skb->dev == NULL) { - dev_kfree_skb_any(skb); - /* Not NET_RX_DROP, this is not being dropped - * due to congestion. */ - return NET_RX_SUCCESS; + if (dev == NULL) { + kfree_skb(skb); + return -1; } - skb->dev->last_rx = jiffies; + + skb->dev = dev; + skb->priority = vlan_get_ingress_priority(dev, skb->vlan_tci); skb->vlan_tci = 0; - stats = &skb->dev->stats; + dev->last_rx = jiffies; + + stats = &dev->stats; stats->rx_packets++; stats->rx_bytes += skb->len; - skb->priority = vlan_get_ingress_priority(skb->dev, vlan_tci); switch (skb->pkt_type) { case PACKET_BROADCAST: break; @@ -43,13 +64,12 @@ int __vlan_hwaccel_rx(struct sk_buff *skb, struct vlan_group *grp, * This allows the VLAN to have a different MAC than the * underlying device, and still route correctly. */ if (!compare_ether_addr(eth_hdr(skb)->h_dest, - skb->dev->dev_addr)) + dev->dev_addr)) skb->pkt_type = PACKET_HOST; break; }; - return (polling ? netif_receive_skb(skb) : netif_rx(skb)); + return 0; } -EXPORT_SYMBOL(__vlan_hwaccel_rx); struct net_device *vlan_dev_real_dev(const struct net_device *dev) { diff --git a/net/9p/client.c b/net/9p/client.c index 67717f69412..4b529454616 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -189,6 +189,9 @@ static struct p9_req_t *p9_tag_alloc(struct p9_client *c, u16 tag) printk(KERN_ERR "Couldn't grow tag array\n"); kfree(req->tc); kfree(req->rc); + kfree(req->wq); + req->tc = req->rc = NULL; + req->wq = NULL; return ERR_PTR(-ENOMEM); } req->tc->sdata = (char *) req->tc + sizeof(struct p9_fcall); @@ -311,12 +314,6 @@ static void p9_free_req(struct p9_client *c, struct p9_req_t *r) r->status = REQ_STATUS_IDLE; if (tag != P9_NOTAG && p9_idpool_check(tag, c->tagpool)) p9_idpool_put(tag, c->tagpool); - - /* if this was a flush request we have to free response fcall */ - if (r->rc->id == P9_RFLUSH) { - kfree(r->tc); - kfree(r->rc); - } } /** @@ -611,19 +608,21 @@ reterr: static struct p9_fid *p9_fid_create(struct p9_client *clnt) { - int err; + int ret; struct p9_fid *fid; + unsigned long flags; P9_DPRINTK(P9_DEBUG_FID, "clnt %p\n", clnt); fid = kmalloc(sizeof(struct p9_fid), GFP_KERNEL); if (!fid) return ERR_PTR(-ENOMEM); - fid->fid = p9_idpool_get(clnt->fidpool); + ret = p9_idpool_get(clnt->fidpool); if (fid->fid < 0) { - err = -ENOSPC; + ret = -ENOSPC; goto error; } + fid->fid = ret; memset(&fid->qid, 0, sizeof(struct p9_qid)); fid->mode = -1; @@ -632,27 +631,28 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt) fid->clnt = clnt; fid->aux = NULL; - spin_lock(&clnt->lock); + spin_lock_irqsave(&clnt->lock, flags); list_add(&fid->flist, &clnt->fidlist); - spin_unlock(&clnt->lock); + spin_unlock_irqrestore(&clnt->lock, flags); return fid; error: kfree(fid); - return ERR_PTR(err); + return ERR_PTR(ret); } static void p9_fid_destroy(struct p9_fid *fid) { struct p9_client *clnt; + unsigned long flags; P9_DPRINTK(P9_DEBUG_FID, "fid %d\n", fid->fid); clnt = fid->clnt; p9_idpool_put(fid->fid, clnt->fidpool); - spin_lock(&clnt->lock); + spin_lock_irqsave(&clnt->lock, flags); list_del(&fid->flist); - spin_unlock(&clnt->lock); + spin_unlock_irqrestore(&clnt->lock, flags); kfree(fid); } @@ -818,7 +818,9 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid, } P9_DPRINTK(P9_DEBUG_9P, "<<< RATTACH qid %x.%llx.%x\n", - qid.type, qid.path, qid.version); + qid.type, + (unsigned long long)qid.path, + qid.version); memmove(&fid->qid, &qid, sizeof(struct p9_qid)); @@ -865,7 +867,9 @@ p9_client_auth(struct p9_client *clnt, char *uname, u32 n_uname, char *aname) } P9_DPRINTK(P9_DEBUG_9P, "<<< RAUTH qid %x.%llx.%x\n", - qid.type, qid.path, qid.version); + qid.type, + (unsigned long long)qid.path, + qid.version); memmove(&afid->qid, &qid, sizeof(struct p9_qid)); p9_free_req(clnt, req); @@ -930,7 +934,8 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, int nwname, char **wnames, for (count = 0; count < nwqids; count++) P9_DPRINTK(P9_DEBUG_9P, "<<< [%d] %x.%llx.%x\n", - count, wqids[count].type, wqids[count].path, + count, wqids[count].type, + (unsigned long long)wqids[count].path, wqids[count].version); if (nwname) @@ -980,7 +985,9 @@ int p9_client_open(struct p9_fid *fid, int mode) } P9_DPRINTK(P9_DEBUG_9P, "<<< ROPEN qid %x.%llx.%x iounit %x\n", - qid.type, qid.path, qid.version, iounit); + qid.type, + (unsigned long long)qid.path, + qid.version, iounit); fid->mode = mode; fid->iounit = iounit; @@ -1023,7 +1030,9 @@ int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode, } P9_DPRINTK(P9_DEBUG_9P, "<<< RCREATE qid %x.%llx.%x iounit %x\n", - qid.type, qid.path, qid.version, iounit); + qid.type, + (unsigned long long)qid.path, + qid.version, iounit); fid->mode = mode; fid->iounit = iounit; @@ -1230,9 +1239,9 @@ struct p9_wstat *p9_client_stat(struct p9_fid *fid) "<<< name=%s uid=%s gid=%s muid=%s extension=(%s)\n" "<<< uid=%d gid=%d n_muid=%d\n", ret->size, ret->type, ret->dev, ret->qid.type, - ret->qid.path, ret->qid.version, ret->mode, - ret->atime, ret->mtime, ret->length, ret->name, - ret->uid, ret->gid, ret->muid, ret->extension, + (unsigned long long)ret->qid.path, ret->qid.version, ret->mode, + ret->atime, ret->mtime, (unsigned long long)ret->length, + ret->name, ret->uid, ret->gid, ret->muid, ret->extension, ret->n_uid, ret->n_gid, ret->n_muid); free_and_error: @@ -1255,9 +1264,9 @@ int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst) " name=%s uid=%s gid=%s muid=%s extension=(%s)\n" " uid=%d gid=%d n_muid=%d\n", wst->size, wst->type, wst->dev, wst->qid.type, - wst->qid.path, wst->qid.version, wst->mode, - wst->atime, wst->mtime, wst->length, wst->name, - wst->uid, wst->gid, wst->muid, wst->extension, + (unsigned long long)wst->qid.path, wst->qid.version, wst->mode, + wst->atime, wst->mtime, (unsigned long long)wst->length, + wst->name, wst->uid, wst->gid, wst->muid, wst->extension, wst->n_uid, wst->n_gid, wst->n_muid); err = 0; clnt = fid->clnt; diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c index 8d6cc4777aa..2f1fe5fc122 100644 --- a/net/9p/trans_rdma.c +++ b/net/9p/trans_rdma.c @@ -45,7 +45,6 @@ #include <net/9p/transport.h> #include <rdma/ib_verbs.h> #include <rdma/rdma_cm.h> -#include <rdma/ib_verbs.h> #define P9_PORT 5640 #define P9_RDMA_SQ_DEPTH 32 @@ -589,6 +588,9 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args) if (IS_ERR(rdma->cm_id)) goto error; + /* Associate the client with the transport */ + client->trans = rdma; + /* Resolve the server's address */ rdma->addr.sin_family = AF_INET; rdma->addr.sin_addr.s_addr = in_aton(addr); @@ -669,7 +671,6 @@ rdma_create_trans(struct p9_client *client, const char *addr, char *args) if (err || (rdma->state != P9_RDMA_CONNECTED)) goto error; - client->trans = rdma; client->status = Connected; return 0; diff --git a/net/core/dev.c b/net/core/dev.c index d9038e328cc..9174c77d311 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2218,6 +2218,9 @@ int netif_receive_skb(struct sk_buff *skb) int ret = NET_RX_DROP; __be16 type; + if (skb->vlan_tci && vlan_hwaccel_do_receive(skb)) + return NET_RX_SUCCESS; + /* if we've gotten here through NAPI, check netpoll */ if (netpoll_receive_skb(skb)) return NET_RX_DROP; diff --git a/net/core/scm.c b/net/core/scm.c index 10f5c65f6a4..ab242cc1acc 100644 --- a/net/core/scm.c +++ b/net/core/scm.c @@ -75,6 +75,7 @@ static int scm_fp_copy(struct cmsghdr *cmsg, struct scm_fp_list **fplp) if (!fpl) return -ENOMEM; *fplp = fpl; + INIT_LIST_HEAD(&fpl->list); fpl->count = 0; } fpp = &fpl->fp[fpl->count]; @@ -106,9 +107,25 @@ void __scm_destroy(struct scm_cookie *scm) if (fpl) { scm->fp = NULL; - for (i=fpl->count-1; i>=0; i--) - fput(fpl->fp[i]); - kfree(fpl); + if (current->scm_work_list) { + list_add_tail(&fpl->list, current->scm_work_list); + } else { + LIST_HEAD(work_list); + + current->scm_work_list = &work_list; + + list_add(&fpl->list, &work_list); + while (!list_empty(&work_list)) { + fpl = list_first_entry(&work_list, struct scm_fp_list, list); + + list_del(&fpl->list); + for (i=fpl->count-1; i>=0; i--) + fput(fpl->fp[i]); + kfree(fpl); + } + + current->scm_work_list = NULL; + } } } @@ -284,6 +301,7 @@ struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl) new_fpl = kmalloc(sizeof(*fpl), GFP_KERNEL); if (new_fpl) { + INIT_LIST_HEAD(&new_fpl->list); for (i=fpl->count-1; i>=0; i--) get_file(fpl->fp[i]); memcpy(new_fpl, fpl, sizeof(*fpl)); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index eccb7165a80..c5aca0bb116 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1374,8 +1374,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, sk->sk_state == TCP_CLOSE || (sk->sk_shutdown & RCV_SHUTDOWN) || !timeo || - signal_pending(current) || - (flags & MSG_PEEK)) + signal_pending(current)) break; } else { if (sock_flag(sk, SOCK_DONE)) diff --git a/net/ipv4/xfrm4_state.c b/net/ipv4/xfrm4_state.c index 07735ed280d..55dc6beab9a 100644 --- a/net/ipv4/xfrm4_state.c +++ b/net/ipv4/xfrm4_state.c @@ -33,6 +33,7 @@ __xfrm4_init_tempsel(struct xfrm_state *x, struct flowi *fl, x->sel.dport_mask = htons(0xffff); x->sel.sport = xfrm_flowi_sport(fl); x->sel.sport_mask = htons(0xffff); + x->sel.family = AF_INET; x->sel.prefixlen_d = 32; x->sel.prefixlen_s = 32; x->sel.proto = fl->proto; diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index eea9542728c..d9da5eb9dcb 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -2483,8 +2483,10 @@ static int addrconf_notify(struct notifier_block *this, unsigned long event, if (!idev && dev->mtu >= IPV6_MIN_MTU) idev = ipv6_add_dev(dev); - if (idev) + if (idev) { idev->if_flags |= IF_READY; + run_pending = 1; + } } else { if (!addrconf_qdisc_ok(dev)) { /* device is still not ready. */ diff --git a/net/ipv6/xfrm6_state.c b/net/ipv6/xfrm6_state.c index 89884a4f23a..60c78cfc273 100644 --- a/net/ipv6/xfrm6_state.c +++ b/net/ipv6/xfrm6_state.c @@ -34,6 +34,7 @@ __xfrm6_init_tempsel(struct xfrm_state *x, struct flowi *fl, x->sel.dport_mask = htons(0xffff); x->sel.sport = xfrm_flowi_sport(fl); x->sel.sport_mask = htons(0xffff); + x->sel.family = AF_INET6; x->sel.prefixlen_d = 128; x->sel.prefixlen_s = 128; x->sel.proto = fl->proto; diff --git a/net/netfilter/nf_conntrack_helper.c b/net/netfilter/nf_conntrack_helper.c index 9c06b9f86ad..c39b6a99413 100644 --- a/net/netfilter/nf_conntrack_helper.c +++ b/net/netfilter/nf_conntrack_helper.c @@ -21,6 +21,7 @@ #include <linux/kernel.h> #include <linux/netdevice.h> #include <linux/rculist.h> +#include <linux/rtnetlink.h> #include <net/netfilter/nf_conntrack.h> #include <net/netfilter/nf_conntrack_l3proto.h> @@ -167,10 +168,12 @@ void nf_conntrack_helper_unregister(struct nf_conntrack_helper *me) */ synchronize_rcu(); + rtnl_lock(); spin_lock_bh(&nf_conntrack_lock); for_each_net(net) __nf_conntrack_helper_unregister(me, net); spin_unlock_bh(&nf_conntrack_lock); + rtnl_unlock(); } EXPORT_SYMBOL_GPL(nf_conntrack_helper_unregister); diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index a59a307e685..592d73344d4 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -22,6 +22,7 @@ #include <linux/notifier.h> #include <linux/kernel.h> #include <linux/netdevice.h> +#include <linux/rtnetlink.h> #include <net/netfilter/nf_conntrack.h> #include <net/netfilter/nf_conntrack_l3proto.h> @@ -221,8 +222,10 @@ void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto) synchronize_rcu(); /* Remove all contrack entries for this protocol */ + rtnl_lock(); for_each_net(net) nf_ct_iterate_cleanup(net, kill_l3proto, proto); + rtnl_unlock(); } EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister); @@ -333,8 +336,10 @@ void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto) synchronize_rcu(); /* Remove all contrack entries for this protocol */ + rtnl_lock(); for_each_net(net) nf_ct_iterate_cleanup(net, kill_l4proto, l4proto); + rtnl_unlock(); } EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister); diff --git a/net/rfkill/rfkill.c b/net/rfkill/rfkill.c index f949a482b00..25ba3bd57e6 100644 --- a/net/rfkill/rfkill.c +++ b/net/rfkill/rfkill.c @@ -603,7 +603,7 @@ static int rfkill_check_duplicity(const struct rfkill *rfkill) } /* 0: first switch of its kind */ - return test_bit(rfkill->type, seen); + return (test_bit(rfkill->type, seen)) ? 1 : 0; } static int rfkill_add_switch(struct rfkill *rfkill) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 4d3c6071b9a..eb90f77bb0e 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -1302,14 +1302,23 @@ static void unix_destruct_fds(struct sk_buff *skb) sock_wfree(skb); } -static void unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb) +static int unix_attach_fds(struct scm_cookie *scm, struct sk_buff *skb) { int i; + + /* + * Need to duplicate file references for the sake of garbage + * collection. Otherwise a socket in the fps might become a + * candidate for GC while the skb is not yet queued. + */ + UNIXCB(skb).fp = scm_fp_dup(scm->fp); + if (!UNIXCB(skb).fp) + return -ENOMEM; + for (i=scm->fp->count-1; i>=0; i--) unix_inflight(scm->fp->fp[i]); - UNIXCB(skb).fp = scm->fp; skb->destructor = unix_destruct_fds; - scm->fp = NULL; + return 0; } /* @@ -1368,8 +1377,11 @@ static int unix_dgram_sendmsg(struct kiocb *kiocb, struct socket *sock, goto out; memcpy(UNIXCREDS(skb), &siocb->scm->creds, sizeof(struct ucred)); - if (siocb->scm->fp) - unix_attach_fds(siocb->scm, skb); + if (siocb->scm->fp) { + err = unix_attach_fds(siocb->scm, skb); + if (err) + goto out_free; + } unix_get_secdata(siocb->scm, skb); skb_reset_transport_header(skb); @@ -1538,8 +1550,13 @@ static int unix_stream_sendmsg(struct kiocb *kiocb, struct socket *sock, size = min_t(int, size, skb_tailroom(skb)); memcpy(UNIXCREDS(skb), &siocb->scm->creds, sizeof(struct ucred)); - if (siocb->scm->fp) - unix_attach_fds(siocb->scm, skb); + if (siocb->scm->fp) { + err = unix_attach_fds(siocb->scm, skb); + if (err) { + kfree_skb(skb); + goto out_err; + } + } if ((err = memcpy_fromiovec(skb_put(skb,size), msg->msg_iov, size)) != 0) { kfree_skb(skb); diff --git a/net/unix/garbage.c b/net/unix/garbage.c index 2a27b84f740..6d4a9a8de5e 100644 --- a/net/unix/garbage.c +++ b/net/unix/garbage.c @@ -186,8 +186,17 @@ static void scan_inflight(struct sock *x, void (*func)(struct unix_sock *), */ struct sock *sk = unix_get_socket(*fp++); if (sk) { - hit = true; - func(unix_sk(sk)); + struct unix_sock *u = unix_sk(sk); + + /* + * Ignore non-candidates, they could + * have been added to the queues after + * starting the garbage collection + */ + if (u->gc_candidate) { + hit = true; + func(u); + } } } if (hit && hitlist != NULL) { @@ -249,11 +258,11 @@ static void inc_inflight_move_tail(struct unix_sock *u) { atomic_long_inc(&u->inflight); /* - * If this is still a candidate, move it to the end of the - * list, so that it's checked even if it was already passed - * over + * If this still might be part of a cycle, move it to the end + * of the list, so that it's checked even if it was already + * passed over */ - if (u->gc_candidate) + if (u->gc_maybe_cycle) list_move_tail(&u->link, &gc_candidates); } @@ -267,6 +276,7 @@ void unix_gc(void) struct unix_sock *next; struct sk_buff_head hitlist; struct list_head cursor; + LIST_HEAD(not_cycle_list); spin_lock(&unix_gc_lock); @@ -282,10 +292,14 @@ void unix_gc(void) * * Holding unix_gc_lock will protect these candidates from * being detached, and hence from gaining an external - * reference. This also means, that since there are no - * possible receivers, the receive queues of these sockets are - * static during the GC, even though the dequeue is done - * before the detach without atomicity guarantees. + * reference. Since there are no possible receivers, all + * buffers currently on the candidates' queues stay there + * during the garbage collection. + * + * We also know that no new candidate can be added onto the + * receive queues. Other, non candidate sockets _can_ be + * added to queue, so we must make sure only to touch + * candidates. */ list_for_each_entry_safe(u, next, &gc_inflight_list, link) { long total_refs; @@ -299,6 +313,7 @@ void unix_gc(void) if (total_refs == inflight_refs) { list_move_tail(&u->link, &gc_candidates); u->gc_candidate = 1; + u->gc_maybe_cycle = 1; } } @@ -325,14 +340,24 @@ void unix_gc(void) list_move(&cursor, &u->link); if (atomic_long_read(&u->inflight) > 0) { - list_move_tail(&u->link, &gc_inflight_list); - u->gc_candidate = 0; + list_move_tail(&u->link, ¬_cycle_list); + u->gc_maybe_cycle = 0; scan_children(&u->sk, inc_inflight_move_tail, NULL); } } list_del(&cursor); /* + * not_cycle_list contains those sockets which do not make up a + * cycle. Restore these to the inflight list. + */ + while (!list_empty(¬_cycle_list)) { + u = list_entry(not_cycle_list.next, struct unix_sock, link); + u->gc_candidate = 0; + list_move_tail(&u->link, &gc_inflight_list); + } + + /* * Now gc_candidates contains only garbage. Restore original * inflight counters for these as well, and remove the skbuffs * which are creating the cycle(s). |