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-rw-r--r--MAINTAINERS10
-rw-r--r--arch/Kconfig4
-rw-r--r--arch/arm/common/it8152.c8
-rw-r--r--arch/arm/mach-ixp4xx/common-pci.c8
-rw-r--r--arch/arm/mach-ixp4xx/include/mach/hardware.h2
-rw-r--r--arch/arm/mach-pxa/include/mach/hardware.h2
-rw-r--r--arch/arm/mach-pxa/include/mach/io.h2
-rw-r--r--arch/powerpc/kernel/signal.c2
-rw-r--r--arch/powerpc/kernel/signal_32.c3
-rw-r--r--arch/powerpc/kernel/signal_64.c2
-rw-r--r--arch/sparc/kernel/perf_event.c14
-rw-r--r--arch/sparc/kernel/signal32.c161
-rw-r--r--arch/sparc/kernel/signal_32.c55
-rw-r--r--arch/sparc/kernel/signal_64.c45
-rw-r--r--arch/um/kernel/exec.c6
-rw-r--r--arch/um/kernel/internal.h2
-rw-r--r--arch/um/kernel/syscall.c4
-rw-r--r--arch/x86/include/asm/hw_breakpoint.h2
-rw-r--r--arch/x86/kernel/hw_breakpoint.c40
-rw-r--r--arch/x86/lguest/boot.c13
-rw-r--r--arch/x86/oprofile/nmi_int.c4
-rw-r--r--block/blk-map.c2
-rw-r--r--block/cfq-iosched.c16
-rw-r--r--drivers/block/cciss.c2
-rw-r--r--drivers/char/agp/intel-agp.c2
-rw-r--r--drivers/char/agp/intel-agp.h2
-rw-r--r--drivers/char/ipmi/ipmi_si_intf.c17
-rw-r--r--drivers/char/mem.c3
-rw-r--r--drivers/char/virtio_console.c6
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c1
-rw-r--r--drivers/gpu/drm/i915/i915_gem.c37
-rw-r--r--drivers/gpu/drm/i915/i915_gem_evict.c9
-rw-r--r--drivers/gpu/drm/i915/i915_suspend.c36
-rw-r--r--drivers/gpu/drm/i915/intel_crt.c4
-rw-r--r--drivers/gpu/drm/i915/intel_display.c8
-rw-r--r--drivers/i2c/busses/i2c-omap.c2
-rw-r--r--drivers/misc/Kconfig2
-rw-r--r--drivers/misc/Makefile2
-rw-r--r--drivers/misc/vmw_balloon.c (renamed from drivers/misc/vmware_balloon.c)0
-rw-r--r--drivers/pci/intel-iommu.c90
-rw-r--r--drivers/rtc/rtc-ab3100.c2
-rw-r--r--drivers/rtc/rtc-s3c.c13
-rw-r--r--drivers/video/console/fbcon.c5
-rw-r--r--drivers/video/efifb.c103
-rw-r--r--drivers/video/sis/sis_main.c3
-rw-r--r--fs/aio.c10
-rw-r--r--fs/ceph/Kconfig1
-rw-r--r--fs/ceph/addr.c7
-rw-r--r--fs/ceph/caps.c27
-rw-r--r--fs/ceph/dir.c10
-rw-r--r--fs/ceph/inode.c11
-rw-r--r--fs/ceph/mds_client.c2
-rw-r--r--fs/ceph/pagelist.c12
-rw-r--r--fs/ceph/snap.c92
-rw-r--r--fs/ceph/super.h5
-rw-r--r--fs/char_dev.c4
-rw-r--r--fs/compat.c2
-rw-r--r--fs/fs-writeback.c23
-rw-r--r--fs/proc/task_mmu.c4
-rw-r--r--fs/proc/vmcore.c2
-rw-r--r--include/linux/dma-mapping.h4
-rw-r--r--include/linux/fs.h4
-rw-r--r--kernel/fork.c2
-rw-r--r--kernel/hw_breakpoint.c3
-rw-r--r--kernel/sched.c8
-rw-r--r--kernel/sched_fair.c2
-rw-r--r--mm/backing-dev.c2
-rw-r--r--mm/mmap.c1
-rw-r--r--mm/oom_kill.c49
-rw-r--r--mm/vmscan.c43
70 files changed, 704 insertions, 382 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index 50b8148448f..4d4881d909d 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1220,7 +1220,7 @@ F: drivers/auxdisplay/
F: include/linux/cfag12864b.h
AVR32 ARCHITECTURE
-M: Haavard Skinnemoen <hskinnemoen@atmel.com>
+M: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
W: http://www.atmel.com/products/AVR32/
W: http://avr32linux.org/
W: http://avrfreaks.net/
@@ -1228,7 +1228,7 @@ S: Supported
F: arch/avr32/
AVR32/AT32AP MACHINE SUPPORT
-M: Haavard Skinnemoen <hskinnemoen@atmel.com>
+M: Hans-Christian Egtvedt <hans-christian.egtvedt@atmel.com>
S: Supported
F: arch/avr32/mach-at32ap/
@@ -2199,6 +2199,12 @@ W: http://acpi4asus.sf.net
S: Maintained
F: drivers/platform/x86/eeepc-laptop.c
+EFIFB FRAMEBUFFER DRIVER
+L: linux-fbdev@vger.kernel.org
+M: Peter Jones <pjones@redhat.com>
+S: Maintained
+F: drivers/video/efifb.c
+
EFS FILESYSTEM
W: http://aeschi.ch.eu.org/efs/
S: Orphan
diff --git a/arch/Kconfig b/arch/Kconfig
index 4877a8c8ee1..fe48fc7a3eb 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -32,8 +32,9 @@ config HAVE_OPROFILE
config KPROBES
bool "Kprobes"
- depends on KALLSYMS && MODULES
+ depends on MODULES
depends on HAVE_KPROBES
+ select KALLSYMS
help
Kprobes allows you to trap at almost any kernel address and
execute a callback function. register_kprobe() establishes
@@ -45,7 +46,6 @@ config OPTPROBES
def_bool y
depends on KPROBES && HAVE_OPTPROBES
depends on !PREEMPT
- select KALLSYMS_ALL
config HAVE_EFFICIENT_UNALIGNED_ACCESS
bool
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index 7974baacafc..1bec96e8519 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -271,6 +271,14 @@ int dma_needs_bounce(struct device *dev, dma_addr_t dma_addr, size_t size)
((dma_addr + size - PHYS_OFFSET) >= SZ_64M);
}
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+ if (mask >= PHYS_OFFSET + SZ_64M - 1)
+ return 0;
+
+ return -EIO;
+}
+
int __init it8152_pci_setup(int nr, struct pci_sys_data *sys)
{
it8152_io.start = IT8152_IO_BASE + 0x12000;
diff --git a/arch/arm/mach-ixp4xx/common-pci.c b/arch/arm/mach-ixp4xx/common-pci.c
index 61cd4d64b98..24498a932ba 100644
--- a/arch/arm/mach-ixp4xx/common-pci.c
+++ b/arch/arm/mach-ixp4xx/common-pci.c
@@ -503,6 +503,14 @@ struct pci_bus * __devinit ixp4xx_scan_bus(int nr, struct pci_sys_data *sys)
return pci_scan_bus(sys->busnr, &ixp4xx_ops, sys);
}
+int dma_set_coherent_mask(struct device *dev, u64 mask)
+{
+ if (mask >= SZ_64M - 1)
+ return 0;
+
+ return -EIO;
+}
+
EXPORT_SYMBOL(ixp4xx_pci_read);
EXPORT_SYMBOL(ixp4xx_pci_write);
diff --git a/arch/arm/mach-ixp4xx/include/mach/hardware.h b/arch/arm/mach-ixp4xx/include/mach/hardware.h
index f91ca6d4fbe..8138371c406 100644
--- a/arch/arm/mach-ixp4xx/include/mach/hardware.h
+++ b/arch/arm/mach-ixp4xx/include/mach/hardware.h
@@ -26,6 +26,8 @@
#define PCIBIOS_MAX_MEM 0x4BFFFFFF
#endif
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
+
#define pcibios_assign_all_busses() 1
/* Register locations and bits */
diff --git a/arch/arm/mach-pxa/include/mach/hardware.h b/arch/arm/mach-pxa/include/mach/hardware.h
index 7f64d24cd56..428cc7bda9a 100644
--- a/arch/arm/mach-pxa/include/mach/hardware.h
+++ b/arch/arm/mach-pxa/include/mach/hardware.h
@@ -309,7 +309,7 @@ extern unsigned long get_clock_tick_rate(void);
#define PCIBIOS_MIN_IO 0
#define PCIBIOS_MIN_MEM 0
#define pcibios_assign_all_busses() 1
+#define ARCH_HAS_DMA_SET_COHERENT_MASK
#endif
-
#endif /* _ASM_ARCH_HARDWARE_H */
diff --git a/arch/arm/mach-pxa/include/mach/io.h b/arch/arm/mach-pxa/include/mach/io.h
index 262691fb97d..fdca3be47d9 100644
--- a/arch/arm/mach-pxa/include/mach/io.h
+++ b/arch/arm/mach-pxa/include/mach/io.h
@@ -6,6 +6,8 @@
#ifndef __ASM_ARM_ARCH_IO_H
#define __ASM_ARM_ARCH_IO_H
+#include <mach/hardware.h>
+
#define IO_SPACE_LIMIT 0xffffffff
/*
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 7109f5b1baa..2300426e531 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -138,6 +138,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
ti->local_flags &= ~_TLF_RESTORE_SIGMASK;
sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
}
+ regs->trap = 0;
return 0; /* no signals delivered */
}
@@ -164,6 +165,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
ret = handle_rt_signal64(signr, &ka, &info, oldset, regs);
}
+ regs->trap = 0;
if (ret) {
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked, &current->blocked,
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 266610119f6..b96a3a010c2 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -511,6 +511,7 @@ static long restore_user_regs(struct pt_regs *regs,
if (!sig)
save_r2 = (unsigned int)regs->gpr[2];
err = restore_general_regs(regs, sr);
+ regs->trap = 0;
err |= __get_user(msr, &sr->mc_gregs[PT_MSR]);
if (!sig)
regs->gpr[2] = (unsigned long) save_r2;
@@ -884,7 +885,6 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
regs->nip = (unsigned long) ka->sa.sa_handler;
/* enter the signal handler in big-endian mode */
regs->msr &= ~MSR_LE;
- regs->trap = 0;
return 1;
badframe:
@@ -1228,7 +1228,6 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
regs->nip = (unsigned long) ka->sa.sa_handler;
/* enter the signal handler in big-endian mode */
regs->msr &= ~MSR_LE;
- regs->trap = 0;
return 1;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index 2fe6fc64b61..27c4a4584f8 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -178,7 +178,7 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
err |= __get_user(regs->xer, &sc->gp_regs[PT_XER]);
err |= __get_user(regs->ccr, &sc->gp_regs[PT_CCR]);
/* skip SOFTE */
- err |= __get_user(regs->trap, &sc->gp_regs[PT_TRAP]);
+ regs->trap = 0;
err |= __get_user(regs->dar, &sc->gp_regs[PT_DAR]);
err |= __get_user(regs->dsisr, &sc->gp_regs[PT_DSISR]);
err |= __get_user(regs->result, &sc->gp_regs[PT_RESULT]);
diff --git a/arch/sparc/kernel/perf_event.c b/arch/sparc/kernel/perf_event.c
index 357ced3c33f..6318e622cfb 100644
--- a/arch/sparc/kernel/perf_event.c
+++ b/arch/sparc/kernel/perf_event.c
@@ -1038,6 +1038,7 @@ static int __hw_perf_event_init(struct perf_event *event)
if (atomic_read(&nmi_active) < 0)
return -ENODEV;
+ pmap = NULL;
if (attr->type == PERF_TYPE_HARDWARE) {
if (attr->config >= sparc_pmu->max_events)
return -EINVAL;
@@ -1046,9 +1047,18 @@ static int __hw_perf_event_init(struct perf_event *event)
pmap = sparc_map_cache_event(attr->config);
if (IS_ERR(pmap))
return PTR_ERR(pmap);
- } else
+ } else if (attr->type != PERF_TYPE_RAW)
return -EOPNOTSUPP;
+ if (pmap) {
+ hwc->event_base = perf_event_encode(pmap);
+ } else {
+ /* User gives us "(encoding << 16) | pic_mask" for
+ * PERF_TYPE_RAW events.
+ */
+ hwc->event_base = attr->config;
+ }
+
/* We save the enable bits in the config_base. */
hwc->config_base = sparc_pmu->irq_bit;
if (!attr->exclude_user)
@@ -1058,8 +1068,6 @@ static int __hw_perf_event_init(struct perf_event *event)
if (!attr->exclude_hv)
hwc->config_base |= sparc_pmu->hv_bit;
- hwc->event_base = perf_event_encode(pmap);
-
n = 0;
if (event->group_leader != event) {
n = collect_events(event->group_leader,
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index ea22cd373c6..75fad425e24 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -453,8 +453,66 @@ static int save_fpu_state32(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
return err;
}
-static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset)
+/* The I-cache flush instruction only works in the primary ASI, which
+ * right now is the nucleus, aka. kernel space.
+ *
+ * Therefore we have to kick the instructions out using the kernel
+ * side linear mapping of the physical address backing the user
+ * instructions.
+ */
+static void flush_signal_insns(unsigned long address)
+{
+ unsigned long pstate, paddr;
+ pte_t *ptep, pte;
+ pgd_t *pgdp;
+ pud_t *pudp;
+ pmd_t *pmdp;
+
+ /* Commit all stores of the instructions we are about to flush. */
+ wmb();
+
+ /* Disable cross-call reception. In this way even a very wide
+ * munmap() on another cpu can't tear down the page table
+ * hierarchy from underneath us, since that can't complete
+ * until the IPI tlb flush returns.
+ */
+
+ __asm__ __volatile__("rdpr %%pstate, %0" : "=r" (pstate));
+ __asm__ __volatile__("wrpr %0, %1, %%pstate"
+ : : "r" (pstate), "i" (PSTATE_IE));
+
+ pgdp = pgd_offset(current->mm, address);
+ if (pgd_none(*pgdp))
+ goto out_irqs_on;
+ pudp = pud_offset(pgdp, address);
+ if (pud_none(*pudp))
+ goto out_irqs_on;
+ pmdp = pmd_offset(pudp, address);
+ if (pmd_none(*pmdp))
+ goto out_irqs_on;
+
+ ptep = pte_offset_map(pmdp, address);
+ pte = *ptep;
+ if (!pte_present(pte))
+ goto out_unmap;
+
+ paddr = (unsigned long) page_address(pte_page(pte));
+
+ __asm__ __volatile__("flush %0 + %1"
+ : /* no outputs */
+ : "r" (paddr),
+ "r" (address & (PAGE_SIZE - 1))
+ : "memory");
+
+out_unmap:
+ pte_unmap(ptep);
+out_irqs_on:
+ __asm__ __volatile__("wrpr %0, 0x0, %%pstate" : : "r" (pstate));
+
+}
+
+static int setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset)
{
struct signal_frame32 __user *sf;
int sigframe_size;
@@ -547,13 +605,7 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (ka->ka_restorer) {
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
} else {
- /* Flush instruction space. */
unsigned long address = ((unsigned long)&(sf->insns[0]));
- pgd_t *pgdp = pgd_offset(current->mm, address);
- pud_t *pudp = pud_offset(pgdp, address);
- pmd_t *pmdp = pmd_offset(pudp, address);
- pte_t *ptep;
- pte_t pte;
regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
@@ -562,34 +614,22 @@ static void setup_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (err)
goto sigsegv;
- preempt_disable();
- ptep = pte_offset_map(pmdp, address);
- pte = *ptep;
- if (pte_present(pte)) {
- unsigned long page = (unsigned long)
- page_address(pte_page(pte));
-
- wmb();
- __asm__ __volatile__("flush %0 + %1"
- : /* no outputs */
- : "r" (page),
- "r" (address & (PAGE_SIZE - 1))
- : "memory");
- }
- pte_unmap(ptep);
- preempt_enable();
+ flush_signal_insns(address);
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
- unsigned long signr, sigset_t *oldset,
- siginfo_t *info)
+static int setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
+ unsigned long signr, sigset_t *oldset,
+ siginfo_t *info)
{
struct rt_signal_frame32 __user *sf;
int sigframe_size;
@@ -687,12 +727,7 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (ka->ka_restorer)
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
else {
- /* Flush instruction space. */
unsigned long address = ((unsigned long)&(sf->insns[0]));
- pgd_t *pgdp = pgd_offset(current->mm, address);
- pud_t *pudp = pud_offset(pgdp, address);
- pmd_t *pmdp = pmd_offset(pudp, address);
- pte_t *ptep;
regs->u_regs[UREG_I7] = (unsigned long) (&(sf->insns[0]) - 2);
@@ -704,38 +739,32 @@ static void setup_rt_frame32(struct k_sigaction *ka, struct pt_regs *regs,
if (err)
goto sigsegv;
- preempt_disable();
- ptep = pte_offset_map(pmdp, address);
- if (pte_present(*ptep)) {
- unsigned long page = (unsigned long)
- page_address(pte_page(*ptep));
-
- wmb();
- __asm__ __volatile__("flush %0 + %1"
- : /* no outputs */
- : "r" (page),
- "r" (address & (PAGE_SIZE - 1))
- : "memory");
- }
- pte_unmap(ptep);
- preempt_enable();
+ flush_signal_insns(address);
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signr, current);
+ return -EFAULT;
}
-static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal32(unsigned long signr, struct k_sigaction *ka,
+ siginfo_t *info,
+ sigset_t *oldset, struct pt_regs *regs)
{
+ int err;
+
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame32(ka, regs, signr, oldset, info);
+ err = setup_rt_frame32(ka, regs, signr, oldset, info);
else
- setup_frame32(ka, regs, signr, oldset);
+ err = setup_frame32(ka, regs, signr, oldset);
+
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -743,6 +772,10 @@ static inline void handle_signal32(unsigned long signr, struct k_sigaction *ka,
sigaddset(&current->blocked,signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart32(unsigned long orig_i0, struct pt_regs *regs,
@@ -789,16 +822,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
if (signr > 0) {
if (restart_syscall)
syscall_restart32(orig_i0, regs, &ka.sa);
- handle_signal32(signr, &ka, &info, oldset, regs);
-
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal32(signr, &ka, &info, oldset, regs) == 0) {
+ /* A signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TS_RESTORE_SIGMASK flag.
+ */
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ }
return;
}
if (restart_syscall &&
@@ -809,12 +840,14 @@ void do_signal32(sigset_t *oldset, struct pt_regs * regs,
regs->u_regs[UREG_I0] = orig_i0;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 9882df92ba0..5e5c5fd0378 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -315,8 +315,8 @@ save_fpu_state(struct pt_regs *regs, __siginfo_fpu_t __user *fpu)
return err;
}
-static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset)
+static int setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset)
{
struct signal_frame __user *sf;
int sigframe_size, err;
@@ -384,16 +384,19 @@ static void setup_frame(struct k_sigaction *ka, struct pt_regs *regs,
/* Flush instruction space. */
flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
}
- return;
+ return 0;
sigill_and_return:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
- int signo, sigset_t *oldset, siginfo_t *info)
+static int setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
+ int signo, sigset_t *oldset, siginfo_t *info)
{
struct rt_signal_frame __user *sf;
int sigframe_size;
@@ -466,22 +469,30 @@ static void setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
/* Flush instruction space. */
flush_sig_insns(current->mm, (unsigned long) &(sf->insns[0]));
}
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static inline void
+static inline int
handle_signal(unsigned long signr, struct k_sigaction *ka,
siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
{
+ int err;
+
if (ka->sa.sa_flags & SA_SIGINFO)
- setup_rt_frame(ka, regs, signr, oldset, info);
+ err = setup_rt_frame(ka, regs, signr, oldset, info);
else
- setup_frame(ka, regs, signr, oldset);
+ err = setup_frame(ka, regs, signr, oldset);
+
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
@@ -489,6 +500,10 @@ handle_signal(unsigned long signr, struct k_sigaction *ka,
sigaddset(&current->blocked, signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -546,17 +561,15 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- handle_signal(signr, &ka, &info, oldset, regs);
-
- /* a signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TIF_RESTORE_SIGMASK flag.
- */
- if (test_thread_flag(TIF_RESTORE_SIGMASK))
- clear_thread_flag(TIF_RESTORE_SIGMASK);
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+ /* a signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TIF_RESTORE_SIGMASK flag.
+ */
+ if (test_thread_flag(TIF_RESTORE_SIGMASK))
+ clear_thread_flag(TIF_RESTORE_SIGMASK);
+ }
return;
}
if (restart_syscall &&
@@ -567,12 +580,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
regs->u_regs[UREG_I0] = orig_i0;
regs->pc -= 4;
regs->npc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->pc -= 4;
regs->npc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* if there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 9fa48c30037..006fe451588 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -409,7 +409,7 @@ static inline void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *
return (void __user *) sp;
}
-static inline void
+static inline int
setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
int signo, sigset_t *oldset, siginfo_t *info)
{
@@ -483,26 +483,37 @@ setup_rt_frame(struct k_sigaction *ka, struct pt_regs *regs,
}
/* 4. return to kernel instructions */
regs->u_regs[UREG_I7] = (unsigned long)ka->ka_restorer;
- return;
+ return 0;
sigill:
do_exit(SIGILL);
+ return -EINVAL;
+
sigsegv:
force_sigsegv(signo, current);
+ return -EFAULT;
}
-static inline void handle_signal(unsigned long signr, struct k_sigaction *ka,
- siginfo_t *info,
- sigset_t *oldset, struct pt_regs *regs)
+static inline int handle_signal(unsigned long signr, struct k_sigaction *ka,
+ siginfo_t *info,
+ sigset_t *oldset, struct pt_regs *regs)
{
- setup_rt_frame(ka, regs, signr, oldset,
- (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+ int err;
+
+ err = setup_rt_frame(ka, regs, signr, oldset,
+ (ka->sa.sa_flags & SA_SIGINFO) ? info : NULL);
+ if (err)
+ return err;
spin_lock_irq(&current->sighand->siglock);
sigorsets(&current->blocked,&current->blocked,&ka->sa.sa_mask);
if (!(ka->sa.sa_flags & SA_NOMASK))
sigaddset(&current->blocked,signr);
recalc_sigpending();
spin_unlock_irq(&current->sighand->siglock);
+
+ tracehook_signal_handler(signr, info, ka, regs, 0);
+
+ return 0;
}
static inline void syscall_restart(unsigned long orig_i0, struct pt_regs *regs,
@@ -571,16 +582,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
if (signr > 0) {
if (restart_syscall)
syscall_restart(orig_i0, regs, &ka.sa);
- handle_signal(signr, &ka, &info, oldset, regs);
-
- /* A signal was successfully delivered; the saved
- * sigmask will have been stored in the signal frame,
- * and will be restored by sigreturn, so we can simply
- * clear the TS_RESTORE_SIGMASK flag.
- */
- current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-
- tracehook_signal_handler(signr, &info, &ka, regs, 0);
+ if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+ /* A signal was successfully delivered; the saved
+ * sigmask will have been stored in the signal frame,
+ * and will be restored by sigreturn, so we can simply
+ * clear the TS_RESTORE_SIGMASK flag.
+ */
+ current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
+ }
return;
}
if (restart_syscall &&
@@ -591,12 +600,14 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
regs->u_regs[UREG_I0] = orig_i0;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
if (restart_syscall &&
regs->u_regs[UREG_I0] == ERESTART_RESTARTBLOCK) {
regs->u_regs[UREG_G1] = __NR_restart_syscall;
regs->tpc -= 4;
regs->tnpc -= 4;
+ pt_regs_clear_syscall(regs);
}
/* If there's no signal to deliver, we just put the saved sigmask
diff --git a/arch/um/kernel/exec.c b/arch/um/kernel/exec.c
index cd145eda357..49b5e1eb326 100644
--- a/arch/um/kernel/exec.c
+++ b/arch/um/kernel/exec.c
@@ -62,7 +62,7 @@ static long execve1(const char *file,
return error;
}
-long um_execve(const char *file, char __user *__user *argv, char __user *__user *env)
+long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env)
{
long err;
@@ -72,8 +72,8 @@ long um_execve(const char *file, char __user *__user *argv, char __user *__user
return err;
}
-long sys_execve(const char __user *file, char __user *__user *argv,
- char __user *__user *env)
+long sys_execve(const char __user *file, const char __user *const __user *argv,
+ const char __user *const __user *env)
{
long error;
char *filename;
diff --git a/arch/um/kernel/internal.h b/arch/um/kernel/internal.h
index 1303a105fe9..5bf97db24a0 100644
--- a/arch/um/kernel/internal.h
+++ b/arch/um/kernel/internal.h
@@ -1 +1 @@
-extern long um_execve(const char *file, char __user *__user *argv, char __user *__user *env);
+extern long um_execve(const char *file, const char __user *const __user *argv, const char __user *const __user *env);
diff --git a/arch/um/kernel/syscall.c b/arch/um/kernel/syscall.c
index 5ddb246626d..f958cb876ee 100644
--- a/arch/um/kernel/syscall.c
+++ b/arch/um/kernel/syscall.c
@@ -60,8 +60,8 @@ int kernel_execve(const char *filename,
fs = get_fs();
set_fs(KERNEL_DS);
- ret = um_execve(filename, (char __user *__user *)argv,
- (char __user *__user *) envp);
+ ret = um_execve(filename, (const char __user *const __user *)argv,
+ (const char __user *const __user *) envp);
set_fs(fs);
return ret;
diff --git a/arch/x86/include/asm/hw_breakpoint.h b/arch/x86/include/asm/hw_breakpoint.h
index 528a11e8d3e..824ca07860d 100644
--- a/arch/x86/include/asm/hw_breakpoint.h
+++ b/arch/x86/include/asm/hw_breakpoint.h
@@ -20,7 +20,7 @@ struct arch_hw_breakpoint {
#include <linux/list.h>
/* Available HW breakpoint length encodings */
-#define X86_BREAKPOINT_LEN_X 0x00
+#define X86_BREAKPOINT_LEN_X 0x40
#define X86_BREAKPOINT_LEN_1 0x40
#define X86_BREAKPOINT_LEN_2 0x44
#define X86_BREAKPOINT_LEN_4 0x4c
diff --git a/arch/x86/kernel/hw_breakpoint.c b/arch/x86/kernel/hw_breakpoint.c
index a474ec37c32..ff15c9dcc25 100644
--- a/arch/x86/kernel/hw_breakpoint.c
+++ b/arch/x86/kernel/hw_breakpoint.c
@@ -206,11 +206,27 @@ int arch_check_bp_in_kernelspace(struct perf_event *bp)
int arch_bp_generic_fields(int x86_len, int x86_type,
int *gen_len, int *gen_type)
{
- /* Len */
- switch (x86_len) {
- case X86_BREAKPOINT_LEN_X:
+ /* Type */
+ switch (x86_type) {
+ case X86_BREAKPOINT_EXECUTE:
+ if (x86_len != X86_BREAKPOINT_LEN_X)
+ return -EINVAL;
+
+ *gen_type = HW_BREAKPOINT_X;
*gen_len = sizeof(long);
+ return 0;
+ case X86_BREAKPOINT_WRITE:
+ *gen_type = HW_BREAKPOINT_W;
break;
+ case X86_BREAKPOINT_RW:
+ *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Len */
+ switch (x86_len) {
case X86_BREAKPOINT_LEN_1:
*gen_len = HW_BREAKPOINT_LEN_1;
break;
@@ -229,21 +245,6 @@ int arch_bp_generic_fields(int x86_len, int x86_type,
return -EINVAL;
}
- /* Type */
- switch (x86_type) {
- case X86_BREAKPOINT_EXECUTE:
- *gen_type = HW_BREAKPOINT_X;
- break;
- case X86_BREAKPOINT_WRITE:
- *gen_type = HW_BREAKPOINT_W;
- break;
- case X86_BREAKPOINT_RW:
- *gen_type = HW_BREAKPOINT_W | HW_BREAKPOINT_R;
- break;
- default:
- return -EINVAL;
- }
-
return 0;
}
@@ -316,9 +317,6 @@ int arch_validate_hwbkpt_settings(struct perf_event *bp)
ret = -EINVAL;
switch (info->len) {
- case X86_BREAKPOINT_LEN_X:
- align = sizeof(long) -1;
- break;
case X86_BREAKPOINT_LEN_1:
align = 0;
break;
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index 9257510b483..9d5f5584845 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -324,9 +324,8 @@ static void lguest_load_gdt(const struct desc_ptr *desc)
}
/*
- * For a single GDT entry which changes, we do the lazy thing: alter our GDT,
- * then tell the Host to reload the entire thing. This operation is so rare
- * that this naive implementation is reasonable.
+ * For a single GDT entry which changes, we simply change our copy and
+ * then tell the host about it.
*/
static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
const void *desc, int type)
@@ -338,9 +337,13 @@ static void lguest_write_gdt_entry(struct desc_struct *dt, int entrynum,
}
/*
- * OK, I lied. There are three "thread local storage" GDT entries which change
+ * There are three "thread local storage" GDT entries which change
* on every context switch (these three entries are how glibc implements
- * __thread variables). So we have a hypercall specifically for this case.
+ * __thread variables). As an optimization, we have a hypercall
+ * specifically for this case.
+ *
+ * Wouldn't it be nicer to have a general LOAD_GDT_ENTRIES hypercall
+ * which took a range of entries?
*/
static void lguest_load_tls(struct thread_struct *t, unsigned int cpu)
{
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index cfe4faabb0f..009b819f48d 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -671,7 +671,9 @@ static int __init ppro_init(char **cpu_type)
case 14:
*cpu_type = "i386/core";
break;
- case 15: case 23:
+ case 0x0f:
+ case 0x16:
+ case 0x17:
*cpu_type = "i386/core_2";
break;
case 0x1a:
diff --git a/block/blk-map.c b/block/blk-map.c
index c65d7593f7f..ade0a08c909 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -307,7 +307,7 @@ int blk_rq_map_kern(struct request_queue *q, struct request *rq, void *kbuf,
return PTR_ERR(bio);
if (rq_data_dir(rq) == WRITE)
- bio->bi_rw |= (1 << REQ_WRITE);
+ bio->bi_rw |= REQ_WRITE;
if (do_copy)
rq->cmd_flags |= REQ_COPY_USER;
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index f65c6f01c47..9eba291eb6f 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1019,10 +1019,20 @@ cfq_find_alloc_cfqg(struct cfq_data *cfqd, struct cgroup *cgroup, int create)
*/
atomic_set(&cfqg->ref, 1);
- /* Add group onto cgroup list */
- sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
- cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
+ /*
+ * Add group onto cgroup list. It might happen that bdi->dev is
+ * not initiliazed yet. Initialize this new group without major
+ * and minor info and this info will be filled in once a new thread
+ * comes for IO. See code above.
+ */
+ if (bdi->dev) {
+ sscanf(dev_name(bdi->dev), "%u:%u", &major, &minor);
+ cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
MKDEV(major, minor));
+ } else
+ cfq_blkiocg_add_blkio_group(blkcg, &cfqg->blkg, (void *)cfqd,
+ 0);
+
cfqg->weight = blkcg_get_weight(blkcg, cfqg->blkg.dev);
/* Add group on cfqd list */
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 6124c2fd2d3..5e4fadcdece 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -4792,7 +4792,7 @@ static int __devinit cciss_init_one(struct pci_dev *pdev,
clean4:
kfree(h->cmd_pool_bits);
/* Free up sg elements */
- for (k = 0; k < h->nr_cmds; k++)
+ for (k-- ; k >= 0; k--)
kfree(h->scatter_list[k]);
kfree(h->scatter_list);
cciss_free_sg_chain_blocks(h->cmd_sg_list, h->nr_cmds);
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index eab58db5f91..cd18493c952 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -806,6 +806,8 @@ static const struct intel_driver_description {
"G45/G43", NULL, &intel_i965_driver },
{ PCI_DEVICE_ID_INTEL_B43_HB, PCI_DEVICE_ID_INTEL_B43_IG,
"B43", NULL, &intel_i965_driver },
+ { PCI_DEVICE_ID_INTEL_B43_1_HB, PCI_DEVICE_ID_INTEL_B43_1_IG,
+ "B43", NULL, &intel_i965_driver },
{ PCI_DEVICE_ID_INTEL_G41_HB, PCI_DEVICE_ID_INTEL_G41_IG,
"G41", NULL, &intel_i965_driver },
{ PCI_DEVICE_ID_INTEL_IRONLAKE_D_HB, PCI_DEVICE_ID_INTEL_IRONLAKE_D_IG,
diff --git a/drivers/char/agp/intel-agp.h b/drivers/char/agp/intel-agp.h
index ee189c74d34..d09b1ab7e8a 100644
--- a/drivers/char/agp/intel-agp.h
+++ b/drivers/char/agp/intel-agp.h
@@ -186,6 +186,8 @@
#define PCI_DEVICE_ID_INTEL_Q33_IG 0x29D2
#define PCI_DEVICE_ID_INTEL_B43_HB 0x2E40
#define PCI_DEVICE_ID_INTEL_B43_IG 0x2E42
+#define PCI_DEVICE_ID_INTEL_B43_1_HB 0x2E90
+#define PCI_DEVICE_ID_INTEL_B43_1_IG 0x2E92
#define PCI_DEVICE_ID_INTEL_GM45_HB 0x2A40
#define PCI_DEVICE_ID_INTEL_GM45_IG 0x2A42
#define PCI_DEVICE_ID_INTEL_EAGLELAKE_HB 0x2E00
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 3822b4f49c8..7bd7c45b53e 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -305,6 +305,9 @@ static int num_force_kipmid;
#ifdef CONFIG_PCI
static int pci_registered;
#endif
+#ifdef CONFIG_ACPI
+static int pnp_registered;
+#endif
#ifdef CONFIG_PPC_OF
static int of_registered;
#endif
@@ -2126,7 +2129,7 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
{
struct acpi_device *acpi_dev;
struct smi_info *info;
- struct resource *res;
+ struct resource *res, *res_second;
acpi_handle handle;
acpi_status status;
unsigned long long tmp;
@@ -2182,13 +2185,13 @@ static int __devinit ipmi_pnp_probe(struct pnp_dev *dev,
info->io.addr_data = res->start;
info->io.regspacing = DEFAULT_REGSPACING;
- res = pnp_get_resource(dev,
+ res_second = pnp_get_resource(dev,
(info->io.addr_type == IPMI_IO_ADDR_SPACE) ?
IORESOURCE_IO : IORESOURCE_MEM,
1);
- if (res) {
- if (res->start > info->io.addr_data)
- info->io.regspacing = res->start - info->io.addr_data;
+ if (res_second) {
+ if (res_second->start > info->io.addr_data)
+ info->io.regspacing = res_second->start - info->io.addr_data;
}
info->io.regsize = DEFAULT_REGSPACING;
info->io.regshift = 0;
@@ -3359,6 +3362,7 @@ static __devinit int init_ipmi_si(void)
#ifdef CONFIG_ACPI
pnp_register_driver(&ipmi_pnp_driver);
+ pnp_registered = 1;
#endif
#ifdef CONFIG_DMI
@@ -3526,7 +3530,8 @@ static __exit void cleanup_ipmi_si(void)
pci_unregister_driver(&ipmi_pci_driver);
#endif
#ifdef CONFIG_ACPI
- pnp_unregister_driver(&ipmi_pnp_driver);
+ if (pnp_registered)
+ pnp_unregister_driver(&ipmi_pnp_driver);
#endif
#ifdef CONFIG_PPC_OF
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index a398ecdbd75..1f528fad351 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -788,10 +788,11 @@ static const struct file_operations zero_fops = {
/*
* capabilities for /dev/zero
* - permits private mappings, "copies" are taken of the source of zeros
+ * - no writeback happens
*/
static struct backing_dev_info zero_bdi = {
.name = "char/mem",
- .capabilities = BDI_CAP_MAP_COPY,
+ .capabilities = BDI_CAP_MAP_COPY | BDI_CAP_NO_ACCT_AND_WRITEBACK,
};
static const struct file_operations full_fops = {
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 942a9826bd2..c810481a5bc 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -596,6 +596,10 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
ssize_t ret;
bool nonblock;
+ /* Userspace could be out to fool us */
+ if (!count)
+ return 0;
+
port = filp->private_data;
nonblock = filp->f_flags & O_NONBLOCK;
@@ -642,7 +646,7 @@ static unsigned int port_fops_poll(struct file *filp, poll_table *wait)
poll_wait(filp, &port->waitqueue, wait);
ret = 0;
- if (port->inbuf)
+ if (!will_read_block(port))
ret |= POLLIN | POLLRDNORM;
if (!will_write_block(port))
ret |= POLLOUT;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 216deb57978..6dbe14cc4f7 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -170,6 +170,7 @@ static const struct pci_device_id pciidlist[] = { /* aka */
INTEL_VGA_DEVICE(0x2e22, &intel_g45_info), /* G45_G */
INTEL_VGA_DEVICE(0x2e32, &intel_g45_info), /* G41_G */
INTEL_VGA_DEVICE(0x2e42, &intel_g45_info), /* B43_G */
+ INTEL_VGA_DEVICE(0x2e92, &intel_g45_info), /* B43_G.1 */
INTEL_VGA_DEVICE(0xa001, &intel_pineview_info),
INTEL_VGA_DEVICE(0xa011, &intel_pineview_info),
INTEL_VGA_DEVICE(0x0042, &intel_ironlake_d_info),
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 16fca1d1799..cf4ffbee1c0 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2351,14 +2351,21 @@ i915_gem_object_get_fence_reg(struct drm_gem_object *obj)
reg->obj = obj;
- if (IS_GEN6(dev))
+ switch (INTEL_INFO(dev)->gen) {
+ case 6:
sandybridge_write_fence_reg(reg);
- else if (IS_I965G(dev))
+ break;
+ case 5:
+ case 4:
i965_write_fence_reg(reg);
- else if (IS_I9XX(dev))
+ break;
+ case 3:
i915_write_fence_reg(reg);
- else
+ break;
+ case 2:
i830_write_fence_reg(reg);
+ break;
+ }
trace_i915_gem_object_get_fence(obj, obj_priv->fence_reg,
obj_priv->tiling_mode);
@@ -2381,22 +2388,26 @@ i915_gem_clear_fence_reg(struct drm_gem_object *obj)
struct drm_i915_gem_object *obj_priv = to_intel_bo(obj);
struct drm_i915_fence_reg *reg =
&dev_priv->fence_regs[obj_priv->fence_reg];
+ uint32_t fence_reg;
- if (IS_GEN6(dev)) {
+ switch (INTEL_INFO(dev)->gen) {
+ case 6:
I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 +
(obj_priv->fence_reg * 8), 0);
- } else if (IS_I965G(dev)) {
+ break;
+ case 5:
+ case 4:
I915_WRITE64(FENCE_REG_965_0 + (obj_priv->fence_reg * 8), 0);
- } else {
- uint32_t fence_reg;
-
- if (obj_priv->fence_reg < 8)
- fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
+ break;
+ case 3:
+ if (obj_priv->fence_reg > 8)
+ fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg - 8) * 4;
else
- fence_reg = FENCE_REG_945_8 + (obj_priv->fence_reg -
- 8) * 4;
+ case 2:
+ fence_reg = FENCE_REG_830_0 + obj_priv->fence_reg * 4;
I915_WRITE(fence_reg, 0);
+ break;
}
reg->obj = NULL;
diff --git a/drivers/gpu/drm/i915/i915_gem_evict.c b/drivers/gpu/drm/i915/i915_gem_evict.c
index 72cae3cccad..e85246ef691 100644
--- a/drivers/gpu/drm/i915/i915_gem_evict.c
+++ b/drivers/gpu/drm/i915/i915_gem_evict.c
@@ -79,6 +79,7 @@ mark_free(struct drm_i915_gem_object *obj_priv,
struct list_head *unwind)
{
list_add(&obj_priv->evict_list, unwind);
+ drm_gem_object_reference(&obj_priv->base);
return drm_mm_scan_add_block(obj_priv->gtt_space);
}
@@ -165,6 +166,7 @@ i915_gem_evict_something(struct drm_device *dev, int min_size, unsigned alignmen
list_for_each_entry(obj_priv, &unwind_list, evict_list) {
ret = drm_mm_scan_remove_block(obj_priv->gtt_space);
BUG_ON(ret);
+ drm_gem_object_unreference(&obj_priv->base);
}
/* We expect the caller to unpin, evict all and try again, or give up.
@@ -181,18 +183,21 @@ found:
* scanning, therefore store to be evicted objects on a
* temporary list. */
list_move(&obj_priv->evict_list, &eviction_list);
- }
+ } else
+ drm_gem_object_unreference(&obj_priv->base);
}
/* Unbinding will emit any required flushes */
list_for_each_entry_safe(obj_priv, tmp_obj_priv,
&eviction_list, evict_list) {
#if WATCH_LRU
- DRM_INFO("%s: evicting %p\n", __func__, obj);
+ DRM_INFO("%s: evicting %p\n", __func__, &obj_priv->base);
#endif
ret = i915_gem_object_unbind(&obj_priv->base);
if (ret)
return ret;
+
+ drm_gem_object_unreference(&obj_priv->base);
}
/* The just created free hole should be on the top of the free stack
diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c
index 2c6b98f2440..31f08581e93 100644
--- a/drivers/gpu/drm/i915/i915_suspend.c
+++ b/drivers/gpu/drm/i915/i915_suspend.c
@@ -789,16 +789,25 @@ int i915_save_state(struct drm_device *dev)
dev_priv->saveSWF2[i] = I915_READ(SWF30 + (i << 2));
/* Fences */
- if (IS_I965G(dev)) {
+ switch (INTEL_INFO(dev)->gen) {
+ case 6:
+ for (i = 0; i < 16; i++)
+ dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_SANDYBRIDGE_0 + (i * 8));
+ break;
+ case 5:
+ case 4:
for (i = 0; i < 16; i++)
dev_priv->saveFENCE[i] = I915_READ64(FENCE_REG_965_0 + (i * 8));
- } else {
- for (i = 0; i < 8; i++)
- dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
-
+ break;
+ case 3:
if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
for (i = 0; i < 8; i++)
dev_priv->saveFENCE[i+8] = I915_READ(FENCE_REG_945_8 + (i * 4));
+ case 2:
+ for (i = 0; i < 8; i++)
+ dev_priv->saveFENCE[i] = I915_READ(FENCE_REG_830_0 + (i * 4));
+ break;
+
}
return 0;
@@ -815,15 +824,24 @@ int i915_restore_state(struct drm_device *dev)
I915_WRITE(HWS_PGA, dev_priv->saveHWS);
/* Fences */
- if (IS_I965G(dev)) {
+ switch (INTEL_INFO(dev)->gen) {
+ case 6:
+ for (i = 0; i < 16; i++)
+ I915_WRITE64(FENCE_REG_SANDYBRIDGE_0 + (i * 8), dev_priv->saveFENCE[i]);
+ break;
+ case 5:
+ case 4:
for (i = 0; i < 16; i++)
I915_WRITE64(FENCE_REG_965_0 + (i * 8), dev_priv->saveFENCE[i]);
- } else {
- for (i = 0; i < 8; i++)
- I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
+ break;
+ case 3:
+ case 2:
if (IS_I945G(dev) || IS_I945GM(dev) || IS_G33(dev))
for (i = 0; i < 8; i++)
I915_WRITE(FENCE_REG_945_8 + (i * 4), dev_priv->saveFENCE[i+8]);
+ for (i = 0; i < 8; i++)
+ I915_WRITE(FENCE_REG_830_0 + (i * 4), dev_priv->saveFENCE[i]);
+ break;
}
i915_restore_display(dev);
diff --git a/drivers/gpu/drm/i915/intel_crt.c b/drivers/gpu/drm/i915/intel_crt.c
index a02a8df7372..197d4f32585 100644
--- a/drivers/gpu/drm/i915/intel_crt.c
+++ b/drivers/gpu/drm/i915/intel_crt.c
@@ -188,7 +188,7 @@ static bool intel_ironlake_crt_detect_hotplug(struct drm_connector *connector)
if (wait_for((I915_READ(PCH_ADPA) & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) == 0,
1000, 1))
- DRM_ERROR("timed out waiting for FORCE_TRIGGER");
+ DRM_DEBUG_KMS("timed out waiting for FORCE_TRIGGER");
if (turn_off_dac) {
I915_WRITE(PCH_ADPA, temp);
@@ -245,7 +245,7 @@ static bool intel_crt_detect_hotplug(struct drm_connector *connector)
if (wait_for((I915_READ(PORT_HOTPLUG_EN) &
CRT_HOTPLUG_FORCE_DETECT) == 0,
1000, 1))
- DRM_ERROR("timed out waiting for FORCE_DETECT to go off");
+ DRM_DEBUG_KMS("timed out waiting for FORCE_DETECT to go off");
}
stat = I915_READ(PORT_HOTPLUG_STAT);
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 19daead5b52..b5bf51a4502 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -2463,11 +2463,19 @@ static bool intel_crtc_mode_fixup(struct drm_crtc *crtc,
struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = crtc->dev;
+
if (HAS_PCH_SPLIT(dev)) {
/* FDI link clock is fixed at 2.7G */
if (mode->clock * 3 > IRONLAKE_FDI_FREQ * 4)
return false;
}
+
+ /* XXX some encoders set the crtcinfo, others don't.
+ * Obviously we need some form of conflict resolution here...
+ */
+ if (adjusted_mode->crtc_htotal == 0)
+ drm_mode_set_crtcinfo(adjusted_mode, 0);
+
return true;
}
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 7674efb5537..b33c78586bf 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -680,6 +680,8 @@ omap_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
if (r == 0)
r = num;
+
+ omap_i2c_wait_for_bb(dev);
out:
omap_i2c_idle(dev);
return r;
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 0b591b65824..b7433126074 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -368,7 +368,7 @@ config VMWARE_BALLOON
If unsure, say N.
To compile this driver as a module, choose M here: the
- module will be called vmware_balloon.
+ module will be called vmw_balloon.
config ARM_CHARLCD
bool "ARM Ltd. Character LCD Driver"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 255a80dc9d7..42eab95cde2 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -33,5 +33,5 @@ obj-$(CONFIG_IWMC3200TOP) += iwmc3200top/
obj-$(CONFIG_HMC6352) += hmc6352.o
obj-y += eeprom/
obj-y += cb710/
-obj-$(CONFIG_VMWARE_BALLOON) += vmware_balloon.o
+obj-$(CONFIG_VMWARE_BALLOON) += vmw_balloon.o
obj-$(CONFIG_ARM_CHARLCD) += arm-charlcd.o
diff --git a/drivers/misc/vmware_balloon.c b/drivers/misc/vmw_balloon.c
index 2a1e804a71a..2a1e804a71a 100644
--- a/drivers/misc/vmware_balloon.c
+++ b/drivers/misc/vmw_balloon.c
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c
index c3ceebb5be8..5ac2aa783f5 100644
--- a/drivers/pci/intel-iommu.c
+++ b/drivers/pci/intel-iommu.c
@@ -71,6 +71,49 @@
#define DMA_32BIT_PFN IOVA_PFN(DMA_BIT_MASK(32))
#define DMA_64BIT_PFN IOVA_PFN(DMA_BIT_MASK(64))
+/* page table handling */
+#define LEVEL_STRIDE (9)
+#define LEVEL_MASK (((u64)1 << LEVEL_STRIDE) - 1)
+
+static inline int agaw_to_level(int agaw)
+{
+ return agaw + 2;
+}
+
+static inline int agaw_to_width(int agaw)
+{
+ return 30 + agaw * LEVEL_STRIDE;
+}
+
+static inline int width_to_agaw(int width)
+{
+ return (width - 30) / LEVEL_STRIDE;
+}
+
+static inline unsigned int level_to_offset_bits(int level)
+{
+ return (level - 1) * LEVEL_STRIDE;
+}
+
+static inline int pfn_level_offset(unsigned long pfn, int level)
+{
+ return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK;
+}
+
+static inline unsigned long level_mask(int level)
+{
+ return -1UL << level_to_offset_bits(level);
+}
+
+static inline unsigned long level_size(int level)
+{
+ return 1UL << level_to_offset_bits(level);
+}
+
+static inline unsigned long align_to_level(unsigned long pfn, int level)
+{
+ return (pfn + level_size(level) - 1) & level_mask(level);
+}
/* VT-d pages must always be _smaller_ than MM pages. Otherwise things
are never going to work. */
@@ -434,8 +477,6 @@ void free_iova_mem(struct iova *iova)
}
-static inline int width_to_agaw(int width);
-
static int __iommu_calculate_agaw(struct intel_iommu *iommu, int max_gaw)
{
unsigned long sagaw;
@@ -646,51 +687,6 @@ out:
spin_unlock_irqrestore(&iommu->lock, flags);
}
-/* page table handling */
-#define LEVEL_STRIDE (9)
-#define LEVEL_MASK (((u64)1 << LEVEL_STRIDE) - 1)
-
-static inline int agaw_to_level(int agaw)
-{
- return agaw + 2;
-}
-
-static inline int agaw_to_width(int agaw)
-{
- return 30 + agaw * LEVEL_STRIDE;
-
-}
-
-static inline int width_to_agaw(int width)
-{
- return (width - 30) / LEVEL_STRIDE;
-}
-
-static inline unsigned int level_to_offset_bits(int level)
-{
- return (level - 1) * LEVEL_STRIDE;
-}
-
-static inline int pfn_level_offset(unsigned long pfn, int level)
-{
- return (pfn >> level_to_offset_bits(level)) & LEVEL_MASK;
-}
-
-static inline unsigned long level_mask(int level)
-{
- return -1UL << level_to_offset_bits(level);
-}
-
-static inline unsigned long level_size(int level)
-{
- return 1UL << level_to_offset_bits(level);
-}
-
-static inline unsigned long align_to_level(unsigned long pfn, int level)
-{
- return (pfn + level_size(level) - 1) & level_mask(level);
-}
-
static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain,
unsigned long pfn)
{
diff --git a/drivers/rtc/rtc-ab3100.c b/drivers/rtc/rtc-ab3100.c
index d26780ea254..261a07e0fb2 100644
--- a/drivers/rtc/rtc-ab3100.c
+++ b/drivers/rtc/rtc-ab3100.c
@@ -235,6 +235,7 @@ static int __init ab3100_rtc_probe(struct platform_device *pdev)
err = PTR_ERR(rtc);
return err;
}
+ platform_set_drvdata(pdev, rtc);
return 0;
}
@@ -244,6 +245,7 @@ static int __exit ab3100_rtc_remove(struct platform_device *pdev)
struct rtc_device *rtc = platform_get_drvdata(pdev);
rtc_device_unregister(rtc);
+ platform_set_drvdata(pdev, NULL);
return 0;
}
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index a0d3ec89d41..f57a87f4ae9 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -310,11 +310,6 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
s3c_rtc_setaie(alrm->enabled);
- if (alrm->enabled)
- enable_irq_wake(s3c_rtc_alarmno);
- else
- disable_irq_wake(s3c_rtc_alarmno);
-
return 0;
}
@@ -587,6 +582,10 @@ static int s3c_rtc_suspend(struct platform_device *pdev, pm_message_t state)
ticnt_en_save &= S3C64XX_RTCCON_TICEN;
}
s3c_rtc_enable(pdev, 0);
+
+ if (device_may_wakeup(&pdev->dev))
+ enable_irq_wake(s3c_rtc_alarmno);
+
return 0;
}
@@ -600,6 +599,10 @@ static int s3c_rtc_resume(struct platform_device *pdev)
tmp = readb(s3c_rtc_base + S3C2410_RTCCON);
writeb(tmp | ticnt_en_save, s3c_rtc_base + S3C2410_RTCCON);
}
+
+ if (device_may_wakeup(&pdev->dev))
+ disable_irq_wake(s3c_rtc_alarmno);
+
return 0;
}
#else
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 84f842331df..7ccc967831f 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -3508,7 +3508,7 @@ static void fbcon_exit(void)
softback_buf = 0UL;
for (i = 0; i < FB_MAX; i++) {
- int pending;
+ int pending = 0;
mapped = 0;
info = registered_fb[i];
@@ -3516,7 +3516,8 @@ static void fbcon_exit(void)
if (info == NULL)
continue;
- pending = cancel_work_sync(&info->queue);
+ if (info->queue.func)
+ pending = cancel_work_sync(&info->queue);
DPRINTK("fbcon: %s pending work\n", (pending ? "canceled" :
"no"));
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 815f84b0793..70477c2e4b6 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -13,7 +13,7 @@
#include <linux/platform_device.h>
#include <linux/screen_info.h>
#include <linux/dmi.h>
-
+#include <linux/pci.h>
#include <video/vga.h>
static struct fb_var_screeninfo efifb_defined __devinitdata = {
@@ -39,17 +39,31 @@ enum {
M_I20, /* 20-Inch iMac */
M_I20_SR, /* 20-Inch iMac (Santa Rosa) */
M_I24, /* 24-Inch iMac */
+ M_I24_8_1, /* 24-Inch iMac, 8,1th gen */
+ M_I24_10_1, /* 24-Inch iMac, 10,1th gen */
+ M_I27_11_1, /* 27-Inch iMac, 11,1th gen */
M_MINI, /* Mac Mini */
+ M_MINI_3_1, /* Mac Mini, 3,1th gen */
+ M_MINI_4_1, /* Mac Mini, 4,1th gen */
M_MB, /* MacBook */
M_MB_2, /* MacBook, 2nd rev. */
M_MB_3, /* MacBook, 3rd rev. */
+ M_MB_5_1, /* MacBook, 5th rev. */
+ M_MB_6_1, /* MacBook, 6th rev. */
+ M_MB_7_1, /* MacBook, 7th rev. */
M_MB_SR, /* MacBook, 2nd gen, (Santa Rosa) */
M_MBA, /* MacBook Air */
M_MBP, /* MacBook Pro */
M_MBP_2, /* MacBook Pro 2nd gen */
+ M_MBP_2_2, /* MacBook Pro 2,2nd gen */
M_MBP_SR, /* MacBook Pro (Santa Rosa) */
M_MBP_4, /* MacBook Pro, 4th gen */
M_MBP_5_1, /* MacBook Pro, 5,1th gen */
+ M_MBP_5_2, /* MacBook Pro, 5,2th gen */
+ M_MBP_5_3, /* MacBook Pro, 5,3rd gen */
+ M_MBP_6_1, /* MacBook Pro, 6,1th gen */
+ M_MBP_6_2, /* MacBook Pro, 6,2th gen */
+ M_MBP_7_1, /* MacBook Pro, 7,1th gen */
M_UNKNOWN /* placeholder */
};
@@ -64,14 +78,28 @@ static struct efifb_dmi_info {
[M_I20] = { "i20", 0x80010000, 1728 * 4, 1680, 1050 }, /* guess */
[M_I20_SR] = { "imac7", 0x40010000, 1728 * 4, 1680, 1050 },
[M_I24] = { "i24", 0x80010000, 2048 * 4, 1920, 1200 }, /* guess */
+ [M_I24_8_1] = { "imac8", 0xc0060000, 2048 * 4, 1920, 1200 },
+ [M_I24_10_1] = { "imac10", 0xc0010000, 2048 * 4, 1920, 1080 },
+ [M_I27_11_1] = { "imac11", 0xc0010000, 2560 * 4, 2560, 1440 },
[M_MINI]= { "mini", 0x80000000, 2048 * 4, 1024, 768 },
+ [M_MINI_3_1] = { "mini31", 0x40010000, 1024 * 4, 1024, 768 },
+ [M_MINI_4_1] = { "mini41", 0xc0010000, 2048 * 4, 1920, 1200 },
[M_MB] = { "macbook", 0x80000000, 2048 * 4, 1280, 800 },
+ [M_MB_5_1] = { "macbook51", 0x80010000, 2048 * 4, 1280, 800 },
+ [M_MB_6_1] = { "macbook61", 0x80010000, 2048 * 4, 1280, 800 },
+ [M_MB_7_1] = { "macbook71", 0x80010000, 2048 * 4, 1280, 800 },
[M_MBA] = { "mba", 0x80000000, 2048 * 4, 1280, 800 },
[M_MBP] = { "mbp", 0x80010000, 1472 * 4, 1440, 900 },
[M_MBP_2] = { "mbp2", 0, 0, 0, 0 }, /* placeholder */
+ [M_MBP_2_2] = { "mbp22", 0x80010000, 1472 * 4, 1440, 900 },
[M_MBP_SR] = { "mbp3", 0x80030000, 2048 * 4, 1440, 900 },
[M_MBP_4] = { "mbp4", 0xc0060000, 2048 * 4, 1920, 1200 },
[M_MBP_5_1] = { "mbp51", 0xc0010000, 2048 * 4, 1440, 900 },
+ [M_MBP_5_2] = { "mbp52", 0xc0010000, 2048 * 4, 1920, 1200 },
+ [M_MBP_5_3] = { "mbp53", 0xd0010000, 2048 * 4, 1440, 900 },
+ [M_MBP_6_1] = { "mbp61", 0x90030000, 2048 * 4, 1920, 1200 },
+ [M_MBP_6_2] = { "mbp62", 0x90030000, 2048 * 4, 1680, 1050 },
+ [M_MBP_7_1] = { "mbp71", 0xc0010000, 2048 * 4, 1280, 800 },
[M_UNKNOWN] = { NULL, 0, 0, 0, 0 }
};
@@ -92,7 +120,12 @@ static const struct dmi_system_id dmi_system_table[] __initconst = {
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "iMac6,1", M_I24),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac6,1", M_I24),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac7,1", M_I20_SR),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac8,1", M_I24_8_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac10,1", M_I24_10_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "iMac11,1", M_I27_11_1),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "Macmini1,1", M_MINI),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini3,1", M_MINI_3_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "Macmini4,1", M_MINI_4_1),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook1,1", M_MB),
/* At least one of these two will be right; maybe both? */
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook2,1", M_MB),
@@ -101,14 +134,23 @@ static const struct dmi_system_id dmi_system_table[] __initconst = {
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBook3,1", M_MB),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook3,1", M_MB),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook4,1", M_MB),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook5,1", M_MB_5_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook6,1", M_MB_6_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBook7,1", M_MB_7_1),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookAir1,1", M_MBA),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro1,1", M_MBP),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,1", M_MBP_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro2,2", M_MBP_2_2),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro2,1", M_MBP_2),
EFIFB_DMI_SYSTEM_ID("Apple Computer, Inc.", "MacBookPro3,1", M_MBP_SR),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro3,1", M_MBP_SR),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro4,1", M_MBP_4),
EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,1", M_MBP_5_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,2", M_MBP_5_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro5,3", M_MBP_5_3),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,1", M_MBP_6_1),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro6,2", M_MBP_6_2),
+ EFIFB_DMI_SYSTEM_ID("Apple Inc.", "MacBookPro7,1", M_MBP_7_1),
{},
};
@@ -116,7 +158,7 @@ static int set_system(const struct dmi_system_id *id)
{
struct efifb_dmi_info *info = id->driver_data;
if (info->base == 0)
- return -ENODEV;
+ return 0;
printk(KERN_INFO "efifb: dmi detected %s - framebuffer at %p "
"(%dx%d, stride %d)\n", id->ident,
@@ -124,18 +166,55 @@ static int set_system(const struct dmi_system_id *id)
info->stride);
/* Trust the bootloader over the DMI tables */
- if (screen_info.lfb_base == 0)
+ if (screen_info.lfb_base == 0) {
+#if defined(CONFIG_PCI)
+ struct pci_dev *dev = NULL;
+ int found_bar = 0;
+#endif
screen_info.lfb_base = info->base;
- if (screen_info.lfb_linelength == 0)
- screen_info.lfb_linelength = info->stride;
- if (screen_info.lfb_width == 0)
- screen_info.lfb_width = info->width;
- if (screen_info.lfb_height == 0)
- screen_info.lfb_height = info->height;
- if (screen_info.orig_video_isVGA == 0)
- screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
- return 0;
+#if defined(CONFIG_PCI)
+ /* make sure that the address in the table is actually on a
+ * VGA device's PCI BAR */
+
+ for_each_pci_dev(dev) {
+ int i;
+ if ((dev->class >> 8) != PCI_CLASS_DISPLAY_VGA)
+ continue;
+ for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+ resource_size_t start, end;
+
+ start = pci_resource_start(dev, i);
+ if (start == 0)
+ break;
+ end = pci_resource_end(dev, i);
+ if (screen_info.lfb_base >= start &&
+ screen_info.lfb_base < end) {
+ found_bar = 1;
+ }
+ }
+ }
+ if (!found_bar)
+ screen_info.lfb_base = 0;
+#endif
+ }
+ if (screen_info.lfb_base) {
+ if (screen_info.lfb_linelength == 0)
+ screen_info.lfb_linelength = info->stride;
+ if (screen_info.lfb_width == 0)
+ screen_info.lfb_width = info->width;
+ if (screen_info.lfb_height == 0)
+ screen_info.lfb_height = info->height;
+ if (screen_info.orig_video_isVGA == 0)
+ screen_info.orig_video_isVGA = VIDEO_TYPE_EFI;
+ } else {
+ screen_info.lfb_linelength = 0;
+ screen_info.lfb_width = 0;
+ screen_info.lfb_height = 0;
+ screen_info.orig_video_isVGA = 0;
+ return 0;
+ }
+ return 1;
}
static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 559bf1727a2..b52f8e4ef1f 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -1701,6 +1701,9 @@ static int sisfb_ioctl(struct fb_info *info, unsigned int cmd,
break;
case FBIOGET_VBLANK:
+
+ memset(&sisvbblank, 0, sizeof(struct fb_vblank));
+
sisvbblank.count = 0;
sisvbblank.flags = sisfb_setupvbblankflags(ivideo, &sisvbblank.vcount, &sisvbblank.hcount);
diff --git a/fs/aio.c b/fs/aio.c
index 1320b2a05fb..250b0a73c8a 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -712,8 +712,16 @@ static ssize_t aio_run_iocb(struct kiocb *iocb)
*/
ret = retry(iocb);
- if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED)
+ if (ret != -EIOCBRETRY && ret != -EIOCBQUEUED) {
+ /*
+ * There's no easy way to restart the syscall since other AIO's
+ * may be already running. Just fail this IO with EINTR.
+ */
+ if (unlikely(ret == -ERESTARTSYS || ret == -ERESTARTNOINTR ||
+ ret == -ERESTARTNOHAND || ret == -ERESTART_RESTARTBLOCK))
+ ret = -EINTR;
aio_complete(iocb, ret, 0);
+ }
out:
spin_lock_irq(&ctx->ctx_lock);
diff --git a/fs/ceph/Kconfig b/fs/ceph/Kconfig
index bc87b9c1d27..0fcd2640c23 100644
--- a/fs/ceph/Kconfig
+++ b/fs/ceph/Kconfig
@@ -3,6 +3,7 @@ config CEPH_FS
depends on INET && EXPERIMENTAL
select LIBCRC32C
select CRYPTO_AES
+ select CRYPTO
help
Choose Y or M here to include support for mounting the
experimental Ceph distributed file system. Ceph is an extremely
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 4cfce1ee31f..efbc604001c 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -411,8 +411,8 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc)
if (i_size < page_off + len)
len = i_size - page_off;
- dout("writepage %p page %p index %lu on %llu~%u\n",
- inode, page, page->index, page_off, len);
+ dout("writepage %p page %p index %lu on %llu~%u snapc %p\n",
+ inode, page, page->index, page_off, len, snapc);
writeback_stat = atomic_long_inc_return(&client->writeback_count);
if (writeback_stat >
@@ -766,7 +766,8 @@ get_more_pages:
/* ok */
if (locked_pages == 0) {
/* prepare async write request */
- offset = page->index << PAGE_CACHE_SHIFT;
+ offset = (unsigned long long)page->index
+ << PAGE_CACHE_SHIFT;
len = wsize;
req = ceph_osdc_new_request(&client->osdc,
&ci->i_layout,
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index a2069b6680a..73c153092f7 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -814,7 +814,7 @@ int __ceph_caps_used(struct ceph_inode_info *ci)
used |= CEPH_CAP_PIN;
if (ci->i_rd_ref)
used |= CEPH_CAP_FILE_RD;
- if (ci->i_rdcache_ref || ci->i_rdcache_gen)
+ if (ci->i_rdcache_ref || ci->vfs_inode.i_data.nrpages)
used |= CEPH_CAP_FILE_CACHE;
if (ci->i_wr_ref)
used |= CEPH_CAP_FILE_WR;
@@ -1195,10 +1195,14 @@ static int __send_cap(struct ceph_mds_client *mdsc, struct ceph_cap *cap,
* asynchronously back to the MDS once sync writes complete and dirty
* data is written out.
*
+ * Unless @again is true, skip cap_snaps that were already sent to
+ * the MDS (i.e., during this session).
+ *
* Called under i_lock. Takes s_mutex as needed.
*/
void __ceph_flush_snaps(struct ceph_inode_info *ci,
- struct ceph_mds_session **psession)
+ struct ceph_mds_session **psession,
+ int again)
__releases(ci->vfs_inode->i_lock)
__acquires(ci->vfs_inode->i_lock)
{
@@ -1227,7 +1231,7 @@ retry:
* pages to be written out.
*/
if (capsnap->dirty_pages || capsnap->writing)
- continue;
+ break;
/*
* if cap writeback already occurred, we should have dropped
@@ -1240,6 +1244,13 @@ retry:
dout("no auth cap (migrating?), doing nothing\n");
goto out;
}
+
+ /* only flush each capsnap once */
+ if (!again && !list_empty(&capsnap->flushing_item)) {
+ dout("already flushed %p, skipping\n", capsnap);
+ continue;
+ }
+
mds = ci->i_auth_cap->session->s_mds;
mseq = ci->i_auth_cap->mseq;
@@ -1276,8 +1287,8 @@ retry:
&session->s_cap_snaps_flushing);
spin_unlock(&inode->i_lock);
- dout("flush_snaps %p cap_snap %p follows %lld size %llu\n",
- inode, capsnap, next_follows, capsnap->size);
+ dout("flush_snaps %p cap_snap %p follows %lld tid %llu\n",
+ inode, capsnap, capsnap->follows, capsnap->flush_tid);
send_cap_msg(session, ceph_vino(inode).ino, 0,
CEPH_CAP_OP_FLUSHSNAP, capsnap->issued, 0,
capsnap->dirty, 0, capsnap->flush_tid, 0, mseq,
@@ -1314,7 +1325,7 @@ static void ceph_flush_snaps(struct ceph_inode_info *ci)
struct inode *inode = &ci->vfs_inode;
spin_lock(&inode->i_lock);
- __ceph_flush_snaps(ci, NULL);
+ __ceph_flush_snaps(ci, NULL, 0);
spin_unlock(&inode->i_lock);
}
@@ -1477,7 +1488,7 @@ void ceph_check_caps(struct ceph_inode_info *ci, int flags,
/* flush snaps first time around only */
if (!list_empty(&ci->i_cap_snaps))
- __ceph_flush_snaps(ci, &session);
+ __ceph_flush_snaps(ci, &session, 0);
goto retry_locked;
retry:
spin_lock(&inode->i_lock);
@@ -1894,7 +1905,7 @@ static void kick_flushing_capsnaps(struct ceph_mds_client *mdsc,
if (cap && cap->session == session) {
dout("kick_flushing_caps %p cap %p capsnap %p\n", inode,
cap, capsnap);
- __ceph_flush_snaps(ci, &session);
+ __ceph_flush_snaps(ci, &session, 1);
} else {
pr_err("%p auth cap %p not mds%d ???\n", inode,
cap, session->s_mds);
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 6e4f43ff23e..a1986eb5204 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1021,11 +1021,15 @@ out_touch:
static void ceph_dentry_release(struct dentry *dentry)
{
struct ceph_dentry_info *di = ceph_dentry(dentry);
- struct inode *parent_inode = dentry->d_parent->d_inode;
- u64 snapid = ceph_snap(parent_inode);
+ struct inode *parent_inode = NULL;
+ u64 snapid = CEPH_NOSNAP;
+ if (!IS_ROOT(dentry)) {
+ parent_inode = dentry->d_parent->d_inode;
+ if (parent_inode)
+ snapid = ceph_snap(parent_inode);
+ }
dout("dentry_release %p parent %p\n", dentry, parent_inode);
-
if (parent_inode && snapid != CEPH_SNAPDIR) {
struct ceph_inode_info *ci = ceph_inode(parent_inode);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index e7cca414da0..62377ec37ed 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -845,7 +845,7 @@ static void ceph_set_dentry_offset(struct dentry *dn)
* the caller) if we fail.
*/
static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
- bool *prehash)
+ bool *prehash, bool set_offset)
{
struct dentry *realdn;
@@ -877,7 +877,8 @@ static struct dentry *splice_dentry(struct dentry *dn, struct inode *in,
}
if ((!prehash || *prehash) && d_unhashed(dn))
d_rehash(dn);
- ceph_set_dentry_offset(dn);
+ if (set_offset)
+ ceph_set_dentry_offset(dn);
out:
return dn;
}
@@ -1062,7 +1063,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
d_delete(dn);
goto done;
}
- dn = splice_dentry(dn, in, &have_lease);
+ dn = splice_dentry(dn, in, &have_lease, true);
if (IS_ERR(dn)) {
err = PTR_ERR(dn);
goto done;
@@ -1105,7 +1106,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req,
goto done;
}
dout(" linking snapped dir %p to dn %p\n", in, dn);
- dn = splice_dentry(dn, in, NULL);
+ dn = splice_dentry(dn, in, NULL, true);
if (IS_ERR(dn)) {
err = PTR_ERR(dn);
goto done;
@@ -1237,7 +1238,7 @@ retry_lookup:
err = PTR_ERR(in);
goto out;
}
- dn = splice_dentry(dn, in, NULL);
+ dn = splice_dentry(dn, in, NULL, false);
if (IS_ERR(dn))
dn = NULL;
}
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index f091b135178..fad95f8f260 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2374,6 +2374,8 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
num_fcntl_locks,
num_flock_locks);
unlock_kernel();
+ } else {
+ err = ceph_pagelist_append(pagelist, &rec, reclen);
}
out_free:
diff --git a/fs/ceph/pagelist.c b/fs/ceph/pagelist.c
index b6859f47d36..46a368b6dce 100644
--- a/fs/ceph/pagelist.c
+++ b/fs/ceph/pagelist.c
@@ -5,10 +5,18 @@
#include "pagelist.h"
+static void ceph_pagelist_unmap_tail(struct ceph_pagelist *pl)
+{
+ struct page *page = list_entry(pl->head.prev, struct page,
+ lru);
+ kunmap(page);
+}
+
int ceph_pagelist_release(struct ceph_pagelist *pl)
{
if (pl->mapped_tail)
- kunmap(pl->mapped_tail);
+ ceph_pagelist_unmap_tail(pl);
+
while (!list_empty(&pl->head)) {
struct page *page = list_first_entry(&pl->head, struct page,
lru);
@@ -26,7 +34,7 @@ static int ceph_pagelist_addpage(struct ceph_pagelist *pl)
pl->room += PAGE_SIZE;
list_add_tail(&page->lru, &pl->head);
if (pl->mapped_tail)
- kunmap(pl->mapped_tail);
+ ceph_pagelist_unmap_tail(pl);
pl->mapped_tail = kmap(page);
return 0;
}
diff --git a/fs/ceph/snap.c b/fs/ceph/snap.c
index 4868b9dcac5..190b6c4a6f2 100644
--- a/fs/ceph/snap.c
+++ b/fs/ceph/snap.c
@@ -119,6 +119,7 @@ static struct ceph_snap_realm *ceph_create_snap_realm(
INIT_LIST_HEAD(&realm->children);
INIT_LIST_HEAD(&realm->child_item);
INIT_LIST_HEAD(&realm->empty_item);
+ INIT_LIST_HEAD(&realm->dirty_item);
INIT_LIST_HEAD(&realm->inodes_with_caps);
spin_lock_init(&realm->inodes_with_caps_lock);
__insert_snap_realm(&mdsc->snap_realms, realm);
@@ -467,7 +468,7 @@ void ceph_queue_cap_snap(struct ceph_inode_info *ci)
INIT_LIST_HEAD(&capsnap->ci_item);
INIT_LIST_HEAD(&capsnap->flushing_item);
- capsnap->follows = snapc->seq - 1;
+ capsnap->follows = snapc->seq;
capsnap->issued = __ceph_caps_issued(ci, NULL);
capsnap->dirty = dirty;
@@ -604,6 +605,7 @@ int ceph_update_snap_trace(struct ceph_mds_client *mdsc,
struct ceph_snap_realm *realm;
int invalidate = 0;
int err = -ENOMEM;
+ LIST_HEAD(dirty_realms);
dout("update_snap_trace deletion=%d\n", deletion);
more:
@@ -626,24 +628,6 @@ more:
}
}
- if (le64_to_cpu(ri->seq) > realm->seq) {
- dout("update_snap_trace updating %llx %p %lld -> %lld\n",
- realm->ino, realm, realm->seq, le64_to_cpu(ri->seq));
- /*
- * if the realm seq has changed, queue a cap_snap for every
- * inode with open caps. we do this _before_ we update
- * the realm info so that we prepare for writeback under the
- * _previous_ snap context.
- *
- * ...unless it's a snap deletion!
- */
- if (!deletion)
- queue_realm_cap_snaps(realm);
- } else {
- dout("update_snap_trace %llx %p seq %lld unchanged\n",
- realm->ino, realm, realm->seq);
- }
-
/* ensure the parent is correct */
err = adjust_snap_realm_parent(mdsc, realm, le64_to_cpu(ri->parent));
if (err < 0)
@@ -651,6 +635,8 @@ more:
invalidate += err;
if (le64_to_cpu(ri->seq) > realm->seq) {
+ dout("update_snap_trace updating %llx %p %lld -> %lld\n",
+ realm->ino, realm, realm->seq, le64_to_cpu(ri->seq));
/* update realm parameters, snap lists */
realm->seq = le64_to_cpu(ri->seq);
realm->created = le64_to_cpu(ri->created);
@@ -668,9 +654,17 @@ more:
if (err < 0)
goto fail;
+ /* queue realm for cap_snap creation */
+ list_add(&realm->dirty_item, &dirty_realms);
+
invalidate = 1;
} else if (!realm->cached_context) {
+ dout("update_snap_trace %llx %p seq %lld new\n",
+ realm->ino, realm, realm->seq);
invalidate = 1;
+ } else {
+ dout("update_snap_trace %llx %p seq %lld unchanged\n",
+ realm->ino, realm, realm->seq);
}
dout("done with %llx %p, invalidated=%d, %p %p\n", realm->ino,
@@ -683,6 +677,14 @@ more:
if (invalidate)
rebuild_snap_realms(realm);
+ /*
+ * queue cap snaps _after_ we've built the new snap contexts,
+ * so that i_head_snapc can be set appropriately.
+ */
+ list_for_each_entry(realm, &dirty_realms, dirty_item) {
+ queue_realm_cap_snaps(realm);
+ }
+
__cleanup_empty_realms(mdsc);
return 0;
@@ -715,7 +717,7 @@ static void flush_snaps(struct ceph_mds_client *mdsc)
igrab(inode);
spin_unlock(&mdsc->snap_flush_lock);
spin_lock(&inode->i_lock);
- __ceph_flush_snaps(ci, &session);
+ __ceph_flush_snaps(ci, &session, 0);
spin_unlock(&inode->i_lock);
iput(inode);
spin_lock(&mdsc->snap_flush_lock);
@@ -816,6 +818,7 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
};
struct inode *inode = ceph_find_inode(sb, vino);
struct ceph_inode_info *ci;
+ struct ceph_snap_realm *oldrealm;
if (!inode)
continue;
@@ -841,18 +844,19 @@ void ceph_handle_snap(struct ceph_mds_client *mdsc,
dout(" will move %p to split realm %llx %p\n",
inode, realm->ino, realm);
/*
- * Remove the inode from the realm's inode
- * list, but don't add it to the new realm
- * yet. We don't want the cap_snap to be
- * queued (again) by ceph_update_snap_trace()
- * below. Queue it _now_, under the old context.
+ * Move the inode to the new realm
*/
spin_lock(&realm->inodes_with_caps_lock);
list_del_init(&ci->i_snap_realm_item);
+ list_add(&ci->i_snap_realm_item,
+ &realm->inodes_with_caps);
+ oldrealm = ci->i_snap_realm;
+ ci->i_snap_realm = realm;
spin_unlock(&realm->inodes_with_caps_lock);
spin_unlock(&inode->i_lock);
- ceph_queue_cap_snap(ci);
+ ceph_get_snap_realm(mdsc, realm);
+ ceph_put_snap_realm(mdsc, oldrealm);
iput(inode);
continue;
@@ -880,43 +884,9 @@ skip_inode:
ceph_update_snap_trace(mdsc, p, e,
op == CEPH_SNAP_OP_DESTROY);
- if (op == CEPH_SNAP_OP_SPLIT) {
- /*
- * ok, _now_ add the inodes into the new realm.
- */
- for (i = 0; i < num_split_inos; i++) {
- struct ceph_vino vino = {
- .ino = le64_to_cpu(split_inos[i]),
- .snap = CEPH_NOSNAP,
- };
- struct inode *inode = ceph_find_inode(sb, vino);
- struct ceph_inode_info *ci;
-
- if (!inode)
- continue;
- ci = ceph_inode(inode);
- spin_lock(&inode->i_lock);
- if (list_empty(&ci->i_snap_realm_item)) {
- struct ceph_snap_realm *oldrealm =
- ci->i_snap_realm;
-
- dout(" moving %p to split realm %llx %p\n",
- inode, realm->ino, realm);
- spin_lock(&realm->inodes_with_caps_lock);
- list_add(&ci->i_snap_realm_item,
- &realm->inodes_with_caps);
- ci->i_snap_realm = realm;
- spin_unlock(&realm->inodes_with_caps_lock);
- ceph_get_snap_realm(mdsc, realm);
- ceph_put_snap_realm(mdsc, oldrealm);
- }
- spin_unlock(&inode->i_lock);
- iput(inode);
- }
-
+ if (op == CEPH_SNAP_OP_SPLIT)
/* we took a reference when we created the realm, above */
ceph_put_snap_realm(mdsc, realm);
- }
__cleanup_empty_realms(mdsc);
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index c33897ae572..b87638e84c4 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -690,6 +690,8 @@ struct ceph_snap_realm {
struct list_head empty_item; /* if i have ref==0 */
+ struct list_head dirty_item; /* if realm needs new context */
+
/* the current set of snaps for this realm */
struct ceph_snap_context *cached_context;
@@ -826,7 +828,8 @@ extern void ceph_put_cap_refs(struct ceph_inode_info *ci, int had);
extern void ceph_put_wrbuffer_cap_refs(struct ceph_inode_info *ci, int nr,
struct ceph_snap_context *snapc);
extern void __ceph_flush_snaps(struct ceph_inode_info *ci,
- struct ceph_mds_session **psession);
+ struct ceph_mds_session **psession,
+ int again);
extern void ceph_check_caps(struct ceph_inode_info *ci, int flags,
struct ceph_mds_session *session);
extern void ceph_check_delayed_caps(struct ceph_mds_client *mdsc);
diff --git a/fs/char_dev.c b/fs/char_dev.c
index f80a4f25123..143d393881c 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -40,7 +40,9 @@ struct backing_dev_info directly_mappable_cdev_bdi = {
#endif
/* permit direct mmap, for read, write or exec */
BDI_CAP_MAP_DIRECT |
- BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP),
+ BDI_CAP_READ_MAP | BDI_CAP_WRITE_MAP | BDI_CAP_EXEC_MAP |
+ /* no writeback happens */
+ BDI_CAP_NO_ACCT_AND_WRITEBACK),
};
static struct kobj_map *cdev_map;
diff --git a/fs/compat.c b/fs/compat.c
index 718c7062aec..0644a154672 100644
--- a/fs/compat.c
+++ b/fs/compat.c
@@ -1153,7 +1153,7 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
{
compat_ssize_t tot_len;
struct iovec iovstack[UIO_FASTIOV];
- struct iovec *iov;
+ struct iovec *iov = iovstack;
ssize_t ret;
io_fn_t fn;
iov_fn_t fnv;
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 81e086d8aa5..5581122bd2c 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -52,8 +52,6 @@ struct wb_writeback_work {
#define CREATE_TRACE_POINTS
#include <trace/events/writeback.h>
-#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info)
-
/*
* We don't actually have pdflush, but this one is exported though /proc...
*/
@@ -71,6 +69,27 @@ int writeback_in_progress(struct backing_dev_info *bdi)
return test_bit(BDI_writeback_running, &bdi->state);
}
+static inline struct backing_dev_info *inode_to_bdi(struct inode *inode)
+{
+ struct super_block *sb = inode->i_sb;
+ struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info;
+
+ /*
+ * For inodes on standard filesystems, we use superblock's bdi. For
+ * inodes on virtual filesystems, we want to use inode mapping's bdi
+ * because they can possibly point to something useful (think about
+ * block_dev filesystem).
+ */
+ if (sb->s_bdi && sb->s_bdi != &noop_backing_dev_info) {
+ /* Some device inodes could play dirty tricks. Catch them... */
+ WARN(bdi != sb->s_bdi && bdi_cap_writeback_dirty(bdi),
+ "Dirtiable inode bdi %s != sb bdi %s\n",
+ bdi->name, sb->s_bdi->name);
+ return sb->s_bdi;
+ }
+ return bdi;
+}
+
static void bdi_queue_work(struct backing_dev_info *bdi,
struct wb_writeback_work *work)
{
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 271afc48b9a..1dbca4e8cc1 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -363,13 +363,13 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
mss->referenced += PAGE_SIZE;
mapcount = page_mapcount(page);
if (mapcount >= 2) {
- if (pte_dirty(ptent))
+ if (pte_dirty(ptent) || PageDirty(page))
mss->shared_dirty += PAGE_SIZE;
else
mss->shared_clean += PAGE_SIZE;
mss->pss += (PAGE_SIZE << PSS_SHIFT) / mapcount;
} else {
- if (pte_dirty(ptent))
+ if (pte_dirty(ptent) || PageDirty(page))
mss->private_dirty += PAGE_SIZE;
else
mss->private_clean += PAGE_SIZE;
diff --git a/fs/proc/vmcore.c b/fs/proc/vmcore.c
index 91c817ff02c..2367fb3f70b 100644
--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -163,7 +163,7 @@ static ssize_t read_vmcore(struct file *file, char __user *buffer,
static const struct file_operations proc_vmcore_operations = {
.read = read_vmcore,
- .llseek = generic_file_llseek,
+ .llseek = default_llseek,
};
static struct vmcore* __init get_new_element(void)
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ce29b815119..ba8319ae5fc 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -102,6 +102,9 @@ static inline u64 dma_get_mask(struct device *dev)
return DMA_BIT_MASK(32);
}
+#ifdef ARCH_HAS_DMA_SET_COHERENT_MASK
+int dma_set_coherent_mask(struct device *dev, u64 mask);
+#else
static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
{
if (!dma_supported(dev, mask))
@@ -109,6 +112,7 @@ static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
dev->coherent_dma_mask = mask;
return 0;
}
+#endif
extern u64 dma_get_required_mask(struct device *dev);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 76041b61475..63d069bd80b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1093,6 +1093,10 @@ struct file_lock {
#include <linux/fcntl.h>
+/* temporary stubs for BKL removal */
+#define lock_flocks() lock_kernel()
+#define unlock_flocks() unlock_kernel()
+
extern void send_sigio(struct fown_struct *fown, int fd, int band);
#ifdef CONFIG_FILE_LOCKING
diff --git a/kernel/fork.c b/kernel/fork.c
index b7e9d60a675..c445f8cc408 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -356,10 +356,10 @@ static int dup_mmap(struct mm_struct *mm, struct mm_struct *oldmm)
if (IS_ERR(pol))
goto fail_nomem_policy;
vma_set_policy(tmp, pol);
+ tmp->vm_mm = mm;
if (anon_vma_fork(tmp, mpnt))
goto fail_nomem_anon_vma_fork;
tmp->vm_flags &= ~VM_LOCKED;
- tmp->vm_mm = mm;
tmp->vm_next = tmp->vm_prev = NULL;
file = tmp->vm_file;
if (file) {
diff --git a/kernel/hw_breakpoint.c b/kernel/hw_breakpoint.c
index d71a987fd2b..c7c2aed9e2d 100644
--- a/kernel/hw_breakpoint.c
+++ b/kernel/hw_breakpoint.c
@@ -433,7 +433,8 @@ register_user_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
struct task_struct *tsk)
{
- return perf_event_create_kernel_counter(attr, -1, tsk->pid, triggered);
+ return perf_event_create_kernel_counter(attr, -1, task_pid_vnr(tsk),
+ triggered);
}
EXPORT_SYMBOL_GPL(register_user_hw_breakpoint);
diff --git a/kernel/sched.c b/kernel/sched.c
index ed09d4f2a69..dc85ceb9083 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -3513,9 +3513,9 @@ void task_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
rtime = nsecs_to_cputime(p->se.sum_exec_runtime);
if (total) {
- u64 temp;
+ u64 temp = rtime;
- temp = (u64)(rtime * utime);
+ temp *= utime;
do_div(temp, total);
utime = (cputime_t)temp;
} else
@@ -3546,9 +3546,9 @@ void thread_group_times(struct task_struct *p, cputime_t *ut, cputime_t *st)
rtime = nsecs_to_cputime(cputime.sum_exec_runtime);
if (total) {
- u64 temp;
+ u64 temp = rtime;
- temp = (u64)(rtime * cputime.utime);
+ temp *= cputime.utime;
do_div(temp, total);
utime = (cputime_t)temp;
} else
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index a171138a940..db3f674ca49 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -3630,7 +3630,7 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
if (time_before(now, nohz.next_balance))
return 0;
- if (!rq->nr_running)
+ if (rq->idle_at_tick)
return 0;
first_pick_cpu = atomic_read(&nohz.first_pick_cpu);
diff --git a/mm/backing-dev.c b/mm/backing-dev.c
index c2bf86f470e..65d420499a6 100644
--- a/mm/backing-dev.c
+++ b/mm/backing-dev.c
@@ -30,6 +30,7 @@ EXPORT_SYMBOL_GPL(default_backing_dev_info);
struct backing_dev_info noop_backing_dev_info = {
.name = "noop",
+ .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK,
};
EXPORT_SYMBOL_GPL(noop_backing_dev_info);
@@ -243,6 +244,7 @@ static int __init default_bdi_init(void)
err = bdi_init(&default_backing_dev_info);
if (!err)
bdi_register(&default_backing_dev_info, NULL, "default");
+ err = bdi_init(&noop_backing_dev_info);
return err;
}
diff --git a/mm/mmap.c b/mm/mmap.c
index 6128dc8e5ed..00161a48a45 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2009,6 +2009,7 @@ static int __split_vma(struct mm_struct * mm, struct vm_area_struct * vma,
removed_exe_file_vma(mm);
fput(new->vm_file);
}
+ unlink_anon_vmas(new);
out_free_mpol:
mpol_put(pol);
out_free_vma:
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index fc81cb22869..4029583a102 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -121,8 +121,8 @@ struct task_struct *find_lock_task_mm(struct task_struct *p)
}
/* return true if the task is not adequate as candidate victim task. */
-static bool oom_unkillable_task(struct task_struct *p, struct mem_cgroup *mem,
- const nodemask_t *nodemask)
+static bool oom_unkillable_task(struct task_struct *p,
+ const struct mem_cgroup *mem, const nodemask_t *nodemask)
{
if (is_global_init(p))
return true;
@@ -208,8 +208,13 @@ unsigned int oom_badness(struct task_struct *p, struct mem_cgroup *mem,
*/
points += p->signal->oom_score_adj;
- if (points < 0)
- return 0;
+ /*
+ * Never return 0 for an eligible task that may be killed since it's
+ * possible that no single user task uses more than 0.1% of memory and
+ * no single admin tasks uses more than 3.0%.
+ */
+ if (points <= 0)
+ return 1;
return (points < 1000) ? points : 1000;
}
@@ -339,26 +344,24 @@ static struct task_struct *select_bad_process(unsigned int *ppoints,
/**
* dump_tasks - dump current memory state of all system tasks
* @mem: current's memory controller, if constrained
+ * @nodemask: nodemask passed to page allocator for mempolicy ooms
*
- * Dumps the current memory state of all system tasks, excluding kernel threads.
+ * Dumps the current memory state of all eligible tasks. Tasks not in the same
+ * memcg, not in the same cpuset, or bound to a disjoint set of mempolicy nodes
+ * are not shown.
* State information includes task's pid, uid, tgid, vm size, rss, cpu, oom_adj
* value, oom_score_adj value, and name.
*
- * If the actual is non-NULL, only tasks that are a member of the mem_cgroup are
- * shown.
- *
* Call with tasklist_lock read-locked.
*/
-static void dump_tasks(const struct mem_cgroup *mem)
+static void dump_tasks(const struct mem_cgroup *mem, const nodemask_t *nodemask)
{
struct task_struct *p;
struct task_struct *task;
pr_info("[ pid ] uid tgid total_vm rss cpu oom_adj oom_score_adj name\n");
for_each_process(p) {
- if (p->flags & PF_KTHREAD)
- continue;
- if (mem && !task_in_mem_cgroup(p, mem))
+ if (oom_unkillable_task(p, mem, nodemask))
continue;
task = find_lock_task_mm(p);
@@ -381,7 +384,7 @@ static void dump_tasks(const struct mem_cgroup *mem)
}
static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
- struct mem_cgroup *mem)
+ struct mem_cgroup *mem, const nodemask_t *nodemask)
{
task_lock(current);
pr_warning("%s invoked oom-killer: gfp_mask=0x%x, order=%d, "
@@ -394,7 +397,7 @@ static void dump_header(struct task_struct *p, gfp_t gfp_mask, int order,
mem_cgroup_print_oom_info(mem, p);
show_mem();
if (sysctl_oom_dump_tasks)
- dump_tasks(mem);
+ dump_tasks(mem, nodemask);
}
#define K(x) ((x) << (PAGE_SHIFT-10))
@@ -436,7 +439,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
unsigned int victim_points = 0;
if (printk_ratelimit())
- dump_header(p, gfp_mask, order, mem);
+ dump_header(p, gfp_mask, order, mem, nodemask);
/*
* If the task is already exiting, don't alarm the sysadmin or kill
@@ -482,7 +485,7 @@ static int oom_kill_process(struct task_struct *p, gfp_t gfp_mask, int order,
* Determines whether the kernel must panic because of the panic_on_oom sysctl.
*/
static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask,
- int order)
+ int order, const nodemask_t *nodemask)
{
if (likely(!sysctl_panic_on_oom))
return;
@@ -496,7 +499,7 @@ static void check_panic_on_oom(enum oom_constraint constraint, gfp_t gfp_mask,
return;
}
read_lock(&tasklist_lock);
- dump_header(NULL, gfp_mask, order, NULL);
+ dump_header(NULL, gfp_mask, order, NULL, nodemask);
read_unlock(&tasklist_lock);
panic("Out of memory: %s panic_on_oom is enabled\n",
sysctl_panic_on_oom == 2 ? "compulsory" : "system-wide");
@@ -509,7 +512,7 @@ void mem_cgroup_out_of_memory(struct mem_cgroup *mem, gfp_t gfp_mask)
unsigned int points = 0;
struct task_struct *p;
- check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, 0);
+ check_panic_on_oom(CONSTRAINT_MEMCG, gfp_mask, 0, NULL);
limit = mem_cgroup_get_limit(mem) >> PAGE_SHIFT;
read_lock(&tasklist_lock);
retry:
@@ -641,6 +644,7 @@ static void clear_system_oom(void)
void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
int order, nodemask_t *nodemask)
{
+ const nodemask_t *mpol_mask;
struct task_struct *p;
unsigned long totalpages;
unsigned long freed = 0;
@@ -670,7 +674,8 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
*/
constraint = constrained_alloc(zonelist, gfp_mask, nodemask,
&totalpages);
- check_panic_on_oom(constraint, gfp_mask, order);
+ mpol_mask = (constraint == CONSTRAINT_MEMORY_POLICY) ? nodemask : NULL;
+ check_panic_on_oom(constraint, gfp_mask, order, mpol_mask);
read_lock(&tasklist_lock);
if (sysctl_oom_kill_allocating_task &&
@@ -688,15 +693,13 @@ void out_of_memory(struct zonelist *zonelist, gfp_t gfp_mask,
}
retry:
- p = select_bad_process(&points, totalpages, NULL,
- constraint == CONSTRAINT_MEMORY_POLICY ? nodemask :
- NULL);
+ p = select_bad_process(&points, totalpages, NULL, mpol_mask);
if (PTR_ERR(p) == -1UL)
goto out;
/* Found nothing?!?! Either we hang forever, or we panic. */
if (!p) {
- dump_header(NULL, gfp_mask, order, NULL);
+ dump_header(NULL, gfp_mask, order, NULL, mpol_mask);
read_unlock(&tasklist_lock);
panic("Out of memory and no killable processes...\n");
}
diff --git a/mm/vmscan.c b/mm/vmscan.c
index c391c320dba..c5dfabf25f1 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -1804,12 +1804,11 @@ static void shrink_zone(int priority, struct zone *zone,
* If a zone is deemed to be full of pinned pages then just give it a light
* scan then give up on it.
*/
-static bool shrink_zones(int priority, struct zonelist *zonelist,
+static void shrink_zones(int priority, struct zonelist *zonelist,
struct scan_control *sc)
{
struct zoneref *z;
struct zone *zone;
- bool all_unreclaimable = true;
for_each_zone_zonelist_nodemask(zone, z, zonelist,
gfp_zone(sc->gfp_mask), sc->nodemask) {
@@ -1827,8 +1826,38 @@ static bool shrink_zones(int priority, struct zonelist *zonelist,
}
shrink_zone(priority, zone, sc);
- all_unreclaimable = false;
}
+}
+
+static bool zone_reclaimable(struct zone *zone)
+{
+ return zone->pages_scanned < zone_reclaimable_pages(zone) * 6;
+}
+
+/*
+ * As hibernation is going on, kswapd is freezed so that it can't mark
+ * the zone into all_unreclaimable. It can't handle OOM during hibernation.
+ * So let's check zone's unreclaimable in direct reclaim as well as kswapd.
+ */
+static bool all_unreclaimable(struct zonelist *zonelist,
+ struct scan_control *sc)
+{
+ struct zoneref *z;
+ struct zone *zone;
+ bool all_unreclaimable = true;
+
+ for_each_zone_zonelist_nodemask(zone, z, zonelist,
+ gfp_zone(sc->gfp_mask), sc->nodemask) {
+ if (!populated_zone(zone))
+ continue;
+ if (!cpuset_zone_allowed_hardwall(zone, GFP_KERNEL))
+ continue;
+ if (zone_reclaimable(zone)) {
+ all_unreclaimable = false;
+ break;
+ }
+ }
+
return all_unreclaimable;
}
@@ -1852,7 +1881,6 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
struct scan_control *sc)
{
int priority;
- bool all_unreclaimable;
unsigned long total_scanned = 0;
struct reclaim_state *reclaim_state = current->reclaim_state;
struct zoneref *z;
@@ -1869,7 +1897,7 @@ static unsigned long do_try_to_free_pages(struct zonelist *zonelist,
sc->nr_scanned = 0;
if (!priority)
disable_swap_token();
- all_unreclaimable = shrink_zones(priority, zonelist, sc);
+ shrink_zones(priority, zonelist, sc);
/*
* Don't shrink slabs when reclaiming memory from
* over limit cgroups
@@ -1931,7 +1959,7 @@ out:
return sc->nr_reclaimed;
/* top priority shrink_zones still had more to do? don't OOM, then */
- if (scanning_global_lru(sc) && !all_unreclaimable)
+ if (scanning_global_lru(sc) && !all_unreclaimable(zonelist, sc))
return 1;
return 0;
@@ -2197,8 +2225,7 @@ loop_again:
total_scanned += sc.nr_scanned;
if (zone->all_unreclaimable)
continue;
- if (nr_slab == 0 &&
- zone->pages_scanned >= (zone_reclaimable_pages(zone) * 6))
+ if (nr_slab == 0 && !zone_reclaimable(zone))
zone->all_unreclaimable = 1;
/*
* If we've done a decent amount of scanning and