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2010-02-02memory hotplug: fix a bug on /dev/mem for 64-bit kernelsShaohui Zheng
Newly added memory can not be accessed via /dev/mem, because we do not update the variables high_memory, max_pfn and max_low_pfn. Add a function update_end_of_memory_vars() to update these variables for 64-bit kernels. [akpm@linux-foundation.org: simplify comment] Signed-off-by: Shaohui Zheng <shaohui.zheng@intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Li Haicheng <haicheng.li@intel.com> Reviewed-by: Wu Fengguang <fengguang.wu@intel.com> Reviewed-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: "H. Peter Anvin" <hpa@zytor.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-02Merge branch 'sh/for-2.6.33' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: Fix access to released memory in clk_debugfs_register_one() sh: Fix access to released memory in dwarf_unwinder_cleanup() usb: r8a66597-hdc disable interrupts fix spi: spi_sh_msiof: Fixed data sampling on the correct edge
2010-02-02Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: 64-bit: Detect virtual memory size MIPS: AR7: Fix USB slave mem range typo MIPS: Alchemy: Fix dbdma ring destruction memory debugcheck.
2010-02-02MIPS: 64-bit: Detect virtual memory sizeGuenter Roeck
Linux kernel 2.6.32 and later allocate address space from the top of the kernel virtual memory address space. This patch implements virtual memory size detection for 64 bit MIPS CPUs to avoid resulting crashes. Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com> Cc: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/935/ Reviewed-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-02sh: Fix access to released memory in clk_debugfs_register_one()Marek Skuczynski
Signed-off-by: Marek Skuczynski <mareksk7@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-02sh: Fix access to released memory in dwarf_unwinder_cleanup()Marek Skuczynski
Signed-off-by: Marek Skuczynski <mareksk7@gmail.com> Acked-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-01MIPS: AR7: Fix USB slave mem range typoAlexander Clouter
Signed-off-by: Alexander Clouter <alex@digriz.org.uk> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/919/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-01MIPS: Alchemy: Fix dbdma ring destruction memory debugcheck.Manuel Lauss
DBDMA descriptors need to be located at 32-byte aligned addresses; however kmalloc in conjunction with the SLAB allocator and CONFIG_DEBUG_SLUB enabled doesn't deliver any. The dbdma code works around that by allocating a larger area and realigning the start address within it. When freeing a channel however this adjustment is not taken into account which results in an oops: Kernel bug detected[#1]: [...] Call Trace: [<80186010>] cache_free_debugcheck+0x284/0x318 [<801869d8>] kfree+0xe8/0x2a0 [<8010b31c>] au1xxx_dbdma_chan_free+0x2c/0x7c [<80388dc8>] au1x_pcm_dbdma_free+0x34/0x4c [<80388fa8>] au1xpsc_pcm_close+0x28/0x38 [<80383cb8>] soc_codec_close+0x14c/0x1cc [<8036dbb4>] snd_pcm_release_substream+0x60/0xac [<8036dc40>] snd_pcm_release+0x40/0xa0 [<8018c7a8>] __fput+0x11c/0x228 [<80188f60>] filp_close+0x7c/0x98 [<80189018>] sys_close+0x9c/0xe4 [<801022a0>] stack_done+0x20/0x3c Fix this by recording the address delivered by kmalloc() and using it as parameter to kfree(). This fix is only necessary with the SLAB allocator and CONFIG_DEBUG_SLAB enabled; non-debug SLAB, SLUB do return nicely aligned addresses, debug-enabled SLUB currently panics early in the boot process. Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com> To: Linux-MIPS <linux-mips@linux-mips.org> Cc: Manuel Lauss <manuel.lauss@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/878/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-02-01Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf, hw_breakpoint, kgdb: Do not take mutex for kernel debugger x86, hw_breakpoints, kgdb: Fix kgdb to use hw_breakpoint API hw_breakpoints: Release the bp slot if arch_validate_hwbkpt_settings() fails. perf: Ignore perf.data.old perf report: Fix segmentation fault when running with '-g none'
2010-02-01Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86/agp: Fix agp_amd64_init regression x86: Add quirk for Intel DG45FC board to avoid low memory corruption x86: Add Dell OptiPlex 760 reboot quirk x86, UV: Fix RTC latency bug by reading replicated cachelines oprofile/x86: add Xeon 7500 series support oprofile/x86: fix crash when profiling more than 28 events lib/dma-debug.c: mark file-local struct symbol static. x86/amd-iommu: Fix deassignment of a device from the pt_domain x86/amd-iommu: Fix IOMMU-API initialization for iommu=pt x86/amd-iommu: Fix NULL pointer dereference in __detach_device() x86/amd-iommu: Fix possible integer overflow
2010-02-01Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: TIF_ABI_PENDING bit removal powerpc/pseries: Fix xics build without CONFIG_SMP powerpc/4xx: Add pcix type 1 transactions powerpc/pci: Add missing call to header fixup powerpc/pci: Add missing hookup to pci_slot powerpc/pci: Add calls to set_pcie_port_type() and set_pcie_hotplug_bridge() powerpc/40x: Update the PowerPC 40x board defconfigs powerpc/44x: Update PowerPC 44x board defconfigs
2010-02-01powerpc: TIF_ABI_PENDING bit removalAndreas Schwab
Here are the powerpc bits to remove TIF_ABI_PENDING now that set_personality() is called at the appropriate place in exec. Signed-off-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-02-01powerpc/pseries: Fix xics build without CONFIG_SMPBenjamin Herrenschmidt
desc->affinity doesn't exit in that case. Let's use a macro for the UP variant of get_irq_server(), it's the easiest way, avoids evaluating arguments. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-01-30perf, hw_breakpoint, kgdb: Do not take mutex for kernel debuggerJason Wessel
This patch fixes the regression in functionality where the kernel debugger and the perf API do not nicely share hw breakpoint reservations. The kernel debugger cannot use any mutex_lock() calls because it can start the kernel running from an invalid context. A mutex free version of the reservation API needed to get created for the kernel debugger to safely update hw breakpoint reservations. The possibility for a breakpoint reservation to be concurrently processed at the time that kgdb interrupts the system is improbable. Should this corner case occur the end user is warned, and the kernel debugger will prohibit updating the hardware breakpoint reservations. Any time the kernel debugger reserves a hardware breakpoint it will be a system wide reservation. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: kgdb-bugreport@lists.sourceforge.net Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: torvalds@linux-foundation.org LKML-Reference: <1264719883-7285-3-git-send-email-jason.wessel@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-30x86, hw_breakpoints, kgdb: Fix kgdb to use hw_breakpoint APIJason Wessel
In the 2.6.33 kernel, the hw_breakpoint API is now used for the performance event counters. The hw_breakpoint_handler() now consumes the hw breakpoints that were previously set by kgdb arch specific code. In order for kgdb to work in conjunction with this core API change, kgdb must use some of the low level functions of the hw_breakpoint API to install, uninstall, and deal with hw breakpoint reservations. The kgdb core required a change to call kgdb_disable_hw_debug anytime a slave cpu enters kgdb_wait() in order to keep all the hw breakpoints in sync as well as to prevent hitting a hw breakpoint while kgdb is active. During the architecture specific initialization of kgdb, it will pre-allocate 4 disabled (struct perf event **) structures. Kgdb will use these to manage the capabilities for the 4 hw breakpoint registers, per cpu. Right now the hw_breakpoint API does not have a way to ask how many breakpoints are available, on each CPU so it is possible that the install of a breakpoint might fail when kgdb restores the system to the run state. The intent of this patch is to first get the basic functionality of hw breakpoints working and leave it to the person debugging the kernel to understand what hw breakpoints are in use and what restrictions have been imposed as a result. Breakpoint constraints will be dealt with in a future patch. While atomic, the x86 specific kgdb code will call arch_uninstall_hw_breakpoint() and arch_install_hw_breakpoint() to manage the cpu specific hw breakpoints. The net result of these changes allow kgdb to use the same pool of hw_breakpoints that are used by the perf event API, but neither knows about future reservations for the available hw breakpoint slots. Signed-off-by: Jason Wessel <jason.wessel@windriver.com> Acked-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: kgdb-bugreport@lists.sourceforge.net Cc: K.Prasad <prasad@linux.vnet.ibm.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: torvalds@linux-foundation.org LKML-Reference: <1264719883-7285-2-git-send-email-jason.wessel@windriver.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-29x86: Add quirk for Intel DG45FC board to avoid low memory corruptionDavid Härdeman
Commit 6aa542a694dc9ea4344a8a590d2628c33d1b9431 added a quirk for the Intel DG45ID board due to low memory corruption. The Intel DG45FC shares the same BIOS (and the same bug) as noted in: http://bugzilla.kernel.org/show_bug.cgi?id=13736 Signed-off-by: David Härdeman <david@hardeman.nu> LKML-Reference: <20100128200254.GA9134@hardeman.nu> Cc: <stable@kernel.org> Cc: Alexey Fisher <bug-track@fisher-privat.net> Cc: ykzhao <yakui.zhao@intel.com> Cc: Tony Bones <aabonesml@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-29sparc: TIF_ABI_PENDING bit removalDavid Miller
Here are the sparc bits to remove TIF_ABI_PENDING now that set_personality() is called at the appropriate place in exec. Signed-off-by: David S. Miller <davem@davemloft.net> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-29x86: get rid of the insane TIF_ABI_PENDING bitH. Peter Anvin
Now that the previous commit made it possible to do the personality setting at the point of no return, we do just that for ELF binaries. And suddenly all the reasons for that insane TIF_ABI_PENDING bit go away, and we can just make SET_PERSONALITY() just do the obvious thing for a 32-bit compat process. Everything becomes much more straightforward this way. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-29Split 'flush_old_exec' into two functionsLinus Torvalds
'flush_old_exec()' is the point of no return when doing an execve(), and it is pretty badly misnamed. It doesn't just flush the old executable environment, it also starts up the new one. Which is very inconvenient for things like setting up the new personality, because we want the new personality to affect the starting of the new environment, but at the same time we do _not_ want the new personality to take effect if flushing the old one fails. As a result, the x86-64 '32-bit' personality is actually done using this insane "I'm going to change the ABI, but I haven't done it yet" bit (TIF_ABI_PENDING), with SET_PERSONALITY() not actually setting the personality, but just the "pending" bit, so that "flush_thread()" can do the actual personality magic. This patch in no way changes any of that insanity, but it does split the 'flush_old_exec()' function up into a preparatory part that can fail (still called flush_old_exec()), and a new part that will actually set up the new exec environment (setup_new_exec()). All callers are changed to trivially comply with the new world order. Signed-off-by: H. Peter Anvin <hpa@zytor.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-01-29Merge commit 'jwb/merge' into mergeBenjamin Herrenschmidt
2010-01-29powerpc/4xx: Add pcix type 1 transactionsStef van Os
Some of the newer 4xx pci cores need an explicit bit set to send type 1 transactions instead of just comparing the bus numbers. This patch enables type 1 transations for pcix nodes, thus enabling devices behind PCI bridges. Signed-off-by: Stef van Os <stef.van.os@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-01-29powerpc/pci: Add missing call to header fixupBenjamin Herrenschmidt
Add missing call to pci_fixup_device(pci_fixup_early, ...) when building the pci_dev from scratch off the Open Firmware device-tree Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-01-29powerpc/pci: Add missing hookup to pci_slotBenjamin Herrenschmidt
Add missing hookup to existing pci_slot when building the pci_dev from scratch off the Open Firmware device-tree Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2010-01-29powerpc/pci: Add calls to set_pcie_port_type() and set_pcie_hotplug_bridge()Benjamin Herrenschmidt
We are missing these when building the pci_dev from scratch off the Open Firmware device-tree Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-01-28Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: x86/PCI: remove IOH range fetching PCI: fix nested spinlock hang in aer_inject
2010-01-28Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds
* master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] Update mach-types [ARM] orion5x: D-link DNS-323 rev. B1 power-off [ARM] Orion5x: add GPIO LED and buttons for wrt350n v2 [ARM] pxa: fix irq suspend/resume for pxa25x [ARM] pxa: fix the incorrect naming of AC97 reset pin config for pxa26x [ARM] pxa/corgi: fix incorrect default GPIO for UDC Vbus [ARM] Kirkwood: drive USB VBUS pin on rd88f6192-nas high on boot [ARM] Orion: fix PCIe inbound window programming when RAM size is not a power of two
2010-01-28[ARM] Update mach-typesRussell King
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2010-01-28Merge branch 'fix' of ↵Russell King
git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6
2010-01-28x86/PCI: remove IOH range fetchingJeff Garrett
Turned out to cause trouble on single IOH machines, and is superceded by _CRS on multi-IOH machines with production BIOSes. Signed-off-by: Jeff Garrett <jeff@jgarrett.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-01-27x86: Add Dell OptiPlex 760 reboot quirkLeann Ogasawara
Dell OptiPlex 760 hangs on reboot unless reboot=bios is used. Add quirk to reboot through the BIOS. BugLink: https://bugs.launchpad.net/bugs/488319 Signed-off-by: Leann Ogasawara <leann.ogasawara@canonical.com> LKML-Reference: <1264634958.27335.1091.camel@emiko> Cc: <stable@kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-28MIPS: PowerTV: Fix support for timer interrupts with > 64 external IRQsDavid VomLehn
The MIPS processor is limited to 64 external interrupt sources. Using a greater number without IRQ sharing requires reading platform-specific registers. On such platforms, reading the IntCtl register to determine which interrupt corresponds to a timer interrupt will not work. On MIPSR2 systems there is a solution - the TI bit in the Cause register, specifically indicates that a timer interrupt has occured. This patch uses that bit to detect interrupts for MIPSR2 processors, which may be expected to work regardless of how the timer interrupt may be routed in the hardware. Signed-off-by: David VomLehn (dvomlehn@cisco.com) To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/804/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-01-28MIPS: PowerTV: Streamline access to platform device registersDavid VomLehn
Pre-compute addresses for the basic ASIC registers. This speeds up access and allows memory for unused configurations to be freed. In addition, uninitialized register addresses will be returned as NULL to catch bad usage quickly. Signed-off-by: David VomLehn <dvomlehn@cisco.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/806/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-01-28MIPS: Fix vmlinuz build for 32bit-only math shellsAlexander Clouter
POSIX requires $((<expression>)) arithmetic in sh only to have long arithmetic so on 32-bit sh binaries might do only 32-bit arithmetic but the arithmetic done in arch/mips/boot/compressed/Makefile needs 64-bit. I play with the AR7 platform, so VMLINUX_LOAD_ADDRESS is 0xffffffff94100000, and for an example 4MiB kernel VMLINUZ_LOAD_ADDRESS is made out to be: ---- alex@berk:~$ bash -c 'printf "%x\n" $((0xffffffff94100000 + 0x400000))' ffffffff94500000 alex@berk:~$ dash -c 'printf "%x\n" $((0xffffffff94100000 + 0x400000))' 80000000003fffff ---- The former is obviously correct whilst the later breaks things royally. Fortunately working with only the lower 32bit's works for both bash and dash: ---- $ bash -c 'printf "%x\n" $((0x94100000 + 0x400000))' 94500000 $ dash -c 'printf "%x\n" $((0x94100000 + 0x400000))' 94500000 ---- So, we can split the original 64bit string to two parts, and only calculate the low 32bit part, which is big enough (1GiB kernel sizes anyone?) for a normal Linux kernel image file, now, we calculate the VMLINUZ_LOAD_ADDRESS like this: 1. if present, append top 32bit of VMLINUX_LOAD_ADDRESS" as a prefix 2. get the sum of the low 32bit of VMLINUX_LOAD_ADDRESS + VMLINUX_SIZE This patch fixes vmlinuz kernel builds on systems where only a 32bit-only math shell is available. Patch Changelog: Version 2 - simplified method by using 'expr' for 'substr' and making it work with dash once again Version 1 - Revert the removals of '-n "$(VMLINUX_SIZE)"' to avoid the error of "make clean" - Consider more cases of the VMLINUX_LOAD_ADDRESS Version 0 - initial release Signed-off-by: Alexander Clouter <alex@digriz.org.uk> Acked-by: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: http://patchwork.linux-mips.org/patch/861/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-01-28MIPS: Add support of LZO-compressed kernelsWu Zhangjin
The necessary changes to the x86 Kconfig and boot/compressed to allow the use of this new compression method. Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com> Cc: linux-mips@linux-mips.org Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com> Patchwork: http://patchwork.linux-mips.org/patch/857/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2010-01-27Merge branch 'for-rmk' of git://git.marvell.com/orionRussell King
2010-01-27Merge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] fix single stepped svcs with TRACE_IRQFLAGS=y [S390] zcrypt: Do not remove coprocessor for error 8/72 [S390] sclp_vt220: set initial terminal window size [S390] use set_current_state in sigsuspend [S390] irqflags: add missing types.h include [S390] dasd: fix possible NULL pointer errors
2010-01-27Merge branch 'x86-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, msr/cpuid: Pass the number of minors when unregistering MSR and CPUID drivers. x86: Remove "x86 CPU features in debugfs" (CONFIG_X86_CPU_DEBUG) Revert "x86: ucode-amd: Load ucode-patches once ..." x86: Disable HPET MSI on ATI SB700/SB800 x86: Set hotpluggable nodes in nodes_possible_map
2010-01-27Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix UP build.
2010-01-27x86, UV: Fix RTC latency bug by reading replicated cachelinesDimitri Sivanich
For SGI UV node controllers (HUB) rev 2.0 or greater, use replicated cachelines to read the RTC timer. This optimization allows faster simulataneous reads from a given socket. Signed-off-by: Dimitri Sivanich <sivanich@sgi.com> Cc: Jack Steiner <steiner@sgi.com> LKML-Reference: <20100122154140.GB4975@sgi.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-01-27Merge branch 'iommu/fixes' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu into x86/urgent
2010-01-27Merge branch 'urgent' of ↵Ingo Molnar
git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile into x86/urgent
2010-01-27[S390] fix single stepped svcs with TRACE_IRQFLAGS=yMartin Schwidefsky
If irq flags tracing is enabled the TRACE_IRQS_ON macros expands to a function call which clobbers registers %r0-%r5. The macro is used in the code path for single stepped system calls. The argument registers %r2-%r6 need to be restored from the stack before the system call function is called. Cc: stable@kernel.org Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-01-27[S390] use set_current_state in sigsuspendMartin Schwidefsky
Use set_current_state instead of a direct assignment to set the task state of the current process. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-01-27[S390] irqflags: add missing types.h includeHeiko Carstens
Add missing types.h include. Otherwise would cause build breakages on hw breakpoint support, because of undefined BITS_PER_LONG. Also fix up the copyright line and remove the superfluous __KERNEL__ ifdef. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2010-01-26x86, msr/cpuid: Pass the number of minors when unregistering MSR and CPUID ↵Russ Anderson
drivers. Pass the number of minors when unregistering MSR and CPUID drivers. Reported-by: Dean Nelson <dnelson@redhat.com> Signed-off-by: Dean Nelson <dnelson@redhat.com> LKML-Reference: <20100127023722.GA22305@sgi.com> Signed-off-by: Russ Anderson <rja@sgi.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2010-01-26sparc64: Fix UP build.David S. Miller
Can't reference irq_desc[].affinity when !SMP. Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-01-25Merge branch 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
* 'kvm-updates/2.6.33' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86: Fix leak of free lapic date in kvm_arch_vcpu_init() KVM: x86: Fix probable memory leak of vcpu->arch.mce_banks KVM: S390: fix potential array overrun in intercept handling KVM: fix spurious interrupt with irqfd eventfd - allow atomic read and waitqueue remove KVM: MMU: bail out pagewalk on kvm_read_guest error KVM: properly check max PIC pin in irq route setup KVM: only allow one gsi per fd KVM: x86: Fix host_mapping_level() KVM: powerpc: Show timing option only on embedded KVM: Fix race between APIC TMR and IRR
2010-01-25Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Fix IRQ ->set_affinity() methods. sparc: cpumask_of_node() should handle -1 as a node sparc64: Update defconfig. sparc: Add missing SW perf fault events. sparc64: Fully support both performance counters. sparc64: Add perf callchain support. sparc: convert to arch_gettimeoffset() sparc: leds_resource.end assigned to itself in clock_board_probe() sparc32: Fix page_to_phys(). sparc: Simplify param.h by simply including <asm-generic/param.h> sparc32: Update defconfig. SPARC: use helpers for rlimits sparc: copy_from_user() should not return -EFAULT
2010-01-25Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (25 commits) OMAP2/3: DMTIMER: Clear pending interrupts when stopping a timer PM debug: Fix warning when no CONFIG_DEBUG_FS OMAP3: PM: DSS PM_WKEN to refill DMA OMAP: timekeeping: time should not stop during suspend OMAP3: PM: Force write last pad config register into save area OMAP: omap3_pm_get_suspend_state() error ignored in pwrdm_suspend_get() OMAP3: PM: Enable wake-up from McBSP2, 3 and 4 modules OMAP3: PM debug: fix build error when !CONFIG_DEBUG_FS OMAP3: PM: Removing redundant and potentially dangerous PRCM configration OMAP3: Fixed ARM aux ctrl register save/restore OMAP3: CPUidle: Fixed timer resolution OMAP3: PM: Remove duplicate code blocks OMAP3: PM: Disable interrupt controller AUTOIDLE before WFI OMAP3: PM: Enable system control module autoidle OMAP3: PM: Ack pending interrupts before entering suspend omap: Enable GPMC clock in gpmc_init OMAP1 clock: fix for "BUG: spinlock lockup on CPU#0" OMAP4: clocks: Fix the clksel_rate struct DPLL divs OMAP4: PRCM: Fix the base address for CHIRONSS reg defines OMAP: dma_chan[lch_head].flag & OMAP_DMA_ACTIVE tested twice in omap_dma_unlink_lch() ...
2010-01-25oprofile/x86: add Xeon 7500 series supportAndi Kleen
Add Xeon 7500 series support to oprofile. Straight forward: it's the same as Core i7, so just detect the model number. No user space changes needed. Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Robert Richter <robert.richter@amd.com>
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