- 16 Nov, 2011 11 commits
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Jan Kara authored
There is no reason why task in balance_dirty_pages() shouldn't be killable and it helps in recovering from some error conditions (like when filesystem goes in error state and cannot accept writeback anymore but we still want to kill processes using it to be able to unmount it). There will be follow up patches to further abort the generic_perform_write() and other filesystem write loops, to avoid large write + SIGKILL combination exceeding the dirty limit and possibly strange OOM. Reported-by: Kazuya Mio <k-mio@sx.jp.nec.com> Tested-by: Kazuya Mio <k-mio@sx.jp.nec.com> Reviewed-by: Neil Brown <neilb@suse.de> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Wu Fengguang <fengguang.wu@intel.com>
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git://git390.marist.edu/pub/scm/linux-2.6Linus Torvalds authored
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6: [S390] topology: fix topology on z10 machines [S390] crypto: avoid MSA3 and MSA4 instructions in ESA mode [S390] avoid STCKF if running in ESA mode [S390] zfcpdump: Do not initialize zfcpdump in kdump mode [S390] ap: Setup processing for messages in request queue. [S390] Kconfig: Select CONFIG_KEXEC for CONFIG_CRASH_DUMP [S390] incorrect note program header [S390] pfault: ignore leftover completion interrupts [S390] fix pgste update logic [S390] wire up process_vm syscalls
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git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds authored
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: lantiq: use export.h in favour of module.h MAINTAINERS: The MIPS git tree has moved. MIPS: Fix build error due to missing inclusion of <linux/export.h>. MIPS: ASID conflict after CPU hotplug MIPS: Octeon: Fix compile error in arch/mips/cavium-octeon/flash_setup.c MIPS: errloongson2_clock: Fix build error by including linux/module.h STAGING: octeon-ethernet: Fix compile error caused by skb_frag_struct change MIPS: Hook up process_vm_readv and process_vm_writev system calls. MIPS: Kernel hangs occasionally during boot. MIPS: Octeon: Mark SMP-IPI interrupt as IRQF_NO_THREAD MIPS: BCM47xx: fix build with GENERIC_GPIO configuration MIPS: NXP: Remove unused source files. MIPS: Yosemite, Emma: Fix off-by-two in arcs_cmdline buffer size check
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git://people.freedesktop.org/~airlied/linuxLinus Torvalds authored
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: drm/radeon/kms: fix segfault in pm rework drm/radeon/kms: fix up gpio i2c mask bits for r4xx drm/radeon: add some missing FireMV pci ids vgaarb: a NULL bridge is acceptable for root devices. drm: Remove utterly bogus preempt_disable() sections
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Hillf Danton authored
If we fail to prepare an anon_vma, the {new, old}_page should be released, or they will leak. Signed-off-by: Hillf Danton <dhillf@gmail.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Johannes Weiner <jweiner@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Jean Delvare authored
The current implementation of dmi_name_in_vendors() is an invitation to lazy coding and false positives [1]. Searching for a string in 8 know what you're looking for, so you should know where to look. strstr isn't fast, especially when it fails, so we should avoid calling it when it just can't succeed. Looking at the current users of the function, it seems clear to me that they are looking for a system or board vendor name, so let's limit dmi_name_in_vendors to these two DMI fields. This much better matches the function name, BTW. [1] We currently have code looking for short names in DMI data, such as "IBM", "ASUS" or "Acer". I let you guess what will happen the day other vendors ship products named, for example, "SCHREIBMEISTER", "PEGASUS" or "Acerola". Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Andi Kleen <andi@firstfloor.org> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Michal Hocko authored
Commit c9f01245 ("oom: remove oom_disable_count") has removed the oom_disable_count counter which has been used for early break out from oom_badness so we could never select a task with oom_score_adj set to OOM_SCORE_ADJ_MIN (oom disabled). Now that the counter is gone we are always going through heuristics calculation and we always return a non zero positive value. This means that we can end up killing a task with OOM disabled because it is indistinguishable from regular tasks with 1% resp. CAP_SYS_ADMIN tasks with 3% usage of memory or tasks with oom_score_adj set but OOM enabled. Let's break out early if the task should have OOM disabled. Signed-off-by: Michal Hocko <mhocko@suse.cz> Acked-by: David Rientjes <rientjes@google.com> Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Ying Han <yinghan@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Paul Bolle authored
The driver for the DigsyMTC display configuration EEPROMs device got added by commit 469dded1 ("misc/eeprom: add eeprom access driver for digsy_mtc board"). Its Kconfig symbol depends on PPC_MPC5200_GPIO. But at the time that driver got added PPC_MPC5200_GPIO was already renamed to GPIO_MPC5200, by commit 6eae1ace ("gpio: Move mpc5200 gpio driver to drivers/gpio"). So make this driver depend on GPIO_MPC5200. And since GPIO_MPC5200 itself implies that GPIOLIB is set, that dependency can be dropped. Signed-off-by: Paul Bolle <pebolle@tiscali.nl> Acked-by: Anatolij Gustschin <agust@denx.de> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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KAMEZAWA Hiroyuki authored
As discussed at Kernel Summit(2011), new cgroups mailing list is opened by James. This list is for discussing general cgroup design and patches including all subsystems and for getting more attentions to cgroups/namespaces related issues by developpers. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Johan Hovold authored
Revert commit 6123b0e2. The problem this patch intends to solve has alreadqy been fixed by commit 7a5caabd ("drivers/leds/ledtrig-timer.c: fix broken sysfs delay handling"). Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: Antonio Ospite <ospite@studenti.unina.it> Cc: Johannes Berg <johannes@sipsolutions.net> Cc: Richard Purdie <rpurdie@rpsys.net> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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David Howells authored
Fix a NULL pointer deref in the user-defined key type whereby updating a negative key into a fully instantiated key will cause an oops to occur when the code attempts to free the non-existent old payload. This results in an oops that looks something like the following: BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff81085fa1>] __call_rcu+0x11/0x13e PGD 3391d067 PUD 3894a067 PMD 0 Oops: 0002 [#1] SMP CPU 1 Pid: 4354, comm: keyctl Not tainted 3.1.0-fsdevel+ #1140 /DG965RY RIP: 0010:[<ffffffff81085fa1>] [<ffffffff81085fa1>] __call_rcu+0x11/0x13e RSP: 0018:ffff88003d591df8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000006e RDX: ffffffff8161d0c0 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff88003d591e18 R08: 0000000000000000 R09: ffffffff8152fa6c R10: 0000000000000000 R11: 0000000000000300 R12: ffff88003b8f9538 R13: ffffffff8161d0c0 R14: ffff88003b8f9d50 R15: ffff88003c69f908 FS: 00007f97eb18c720(0000) GS:ffff88003bd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000008 CR3: 000000003d47a000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process keyctl (pid: 4354, threadinfo ffff88003d590000, task ffff88003c78a040) Stack: ffff88003e0ffde0 ffff88003b8f9538 0000000000000001 ffff88003b8f9d50 ffff88003d591e28 ffffffff810860f0 ffff88003d591e68 ffffffff8117bfea ffff88003d591e68 ffffffff00000000 ffff88003e0ffde1 ffff88003e0ffde0 Call Trace: [<ffffffff810860f0>] call_rcu_sched+0x10/0x12 [<ffffffff8117bfea>] user_update+0x8d/0xa2 [<ffffffff8117723a>] key_create_or_update+0x236/0x270 [<ffffffff811789b1>] sys_add_key+0x123/0x17e [<ffffffff813b84bb>] system_call_fastpath+0x16/0x1b Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Jeff Layton <jlayton@redhat.com> Acked-by: Neil Horman <nhorman@redhat.com> Acked-by: Steve Dickson <steved@redhat.com> Acked-by: James Morris <jmorris@namei.org> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 15 Nov, 2011 10 commits
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Alex Deucher authored
Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Alex Deucher authored
Fixes i2c test failures when i2c_algo_bit.bit_test=1. The hw doesn't actually require a mask, so just set it to the default mask bits for r1xx-r4xx radeon ddc. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Cc: Jean Delvare <khali@linux-fr.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Alex Deucher authored
Noticed by Egbert. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@kernel.org Cc: Egbert Eich <eich@suse.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
* 'iommu/fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: iommu: omap: Fix compile failure
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git://git.linaro.org/people/triad/linux-pinctrlLinus Torvalds authored
* 'fixes' of git://git.linaro.org/people/triad/linux-pinctrl: pinctrl: hide subsystem from the populace pinctrl: fix "warning: 'struct pinctrl_dev' declared inside parameter list"
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git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linuxLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: fsl-rio: fix compile error
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git://git.secretlab.ca/git/linux-2.6Linus Torvalds authored
* 'gpio/merge' of git://git.secretlab.ca/git/linux-2.6: gpio: pca953x: propagate the errno from the chip_init functions gpio: pca953x: remove unneeded check for chip type gpio/omap: check return value from irq_alloc_generic_chip gpio/omap: replace MOD_REG_BIT macro with static inline
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git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfinLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lliubbo/blackfin: blackfin: Fixup export.h includes Blackfin: add serial TX IRQ in individual platform resource
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Dan Carpenter authored
On a corrupted file system the ->len field could be wrong leading to a buffer overflow. Reported-and-acked-by: Clement LECIGNE <clement.lecigne@netasq.com> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Cc: stable@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- 14 Nov, 2011 19 commits
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Liu Gang authored
The "#include <linux/module.h>" was replaced by "#include <linux/export.h>" in the patch "powerpc: various straight conversions from module.h --> export.h". This will cause the following compile problem: arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_mcheck_exception': arch/powerpc/sysdev/fsl_rio.c:296: error: implicit declaration of function 'search_exception_tables'. The file fsl_rio.c needs the declaration of function "search_exception_tables" in the header file "linux/module.h". Signed-off-by: Liu Gang <Gang.Liu@freescale.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
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John Crispin authored
The code located at arch/mips/lantiq/ included module.h to be able to use the EXPORT_SYMBOL* macros. These can now be directly included using export.h. Signed-off-by: John Crispin <blogic@openwrt.org> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2937/Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Ralf Baechle authored
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Heiko Carstens authored
Make sure that all cpus in a book on a z10 appear as book siblings and not as core siblings. This fixes some performance regressions that appeared after the book scheduling domain got introduced. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Jan Glauber authored
MSA3 and MSA4 instructions are only available under CONFIG_64BIT. Bail out before using any of these instructions if the kernel is running in 31 bit mode. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Jan Glauber authored
In ESA mode STCKF is not defined even if the facility bit is enabled. To prevent an illegal operation we must also check if we run a 64 bit kernel. To make the check perform well add the STCKF bit to the machine flags. Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Michael Holzheu authored
When the kernel is started in kdump mode, zfcpdump should not be initialized because both dump methods can't be used at the same time. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Holger Dengler authored
Setup timer for processing messages in request queue, if sending an AP message returns with reason code AP_RESPONSE_RESET_IN_PROGRESS. Signed-off-by: Holger Dengler <hd@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Michael Holzheu authored
The kdump infrastructure is built on top of kexec. Therefore CONFIG_KEXEC has to be enabled when CONFIG_CRASH_DUMP is selected. Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
'readelf -n' on the s390 vmlinux file generates lots of warnings about corrupt notes. The reason is that the 'NOTE' program header has incorrect file and memory sizes. The problem is that the section following the NOTES section do not switch to a different phdr and they get added to the NOTE program section. Add a dummy entry to the linker script that switches to the data phdr before the start of the RODATA section. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Ignore completion interrupts if the initial interrupt hasn't been received and the addressed task is not running. This case can only happen if leftover (pending) completion interrupt gets delivered which wasn't removed with the PFAULT CANCEL operation during cpu hotplug. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Martin Schwidefsky authored
The pgste_update_all / pgste_update_young and pgste_set_pte need to check if the pte entry contains a valid page address before the storage key can be accessed. In addition pgste_set_pte needs to set the access key and fetch protection bit of the new pte entry, not the old entry. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Heiko Carstens authored
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Dave Airlie authored
I assumed all PCI buses had a bridge, but playing with qemu recently, I discovered vgaarb bug where it wasn't detecting both devices shared a bridge at the root level. Don't check for NULL, if two buses have a NULL bridge, assume they share the root bus. Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Thomas Gleixner authored
commit 27641c3f (drm/vblank: Add support for precise vblank timestamping) adds preempt_disable()/enable() around a spin locked section with the comments: * Disable preemption, so vblank_time_lock is held as short as * possible, even under a kernel with PREEMPT_RT patches. /* Disable preemption while holding vblank_time_lock. Do * it explicitely to guard against PREEMPT_RT kernel. Just that this has never been tested on a RT kernel which would have granted that nonsense with a might_sleep() warning because dev->vblank_time_lock is converted to a "sleeping" spinlock on RT. So this is activly wrong on RT and superflous on mainline. Remove it. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Mario Kleiner <mario.kleiner@tuebingen.mpg.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Lars-Peter Clausen authored
Commit 8dc7a9c8 ("blackfin: Add export.h to files using EXPORT_SYMBOL/THIS_MODULE") inserted some of the include statements into sections protected by an unrelated #if CONFIG_... statement. This can cause, depending on the configuration used, warnings like this one: arch/blackfin/mach-bf537/boards/stamp.c:2940: warning: data definition has no type or storage class arch/blackfin/mach-bf537/boards/stamp.c:2940: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL’ arch/blackfin/mach-bf537/boards/stamp.c:2940: warning: parameter names (without types) in function declaration This patch fixes it by moving the includes out of the #if protected sections. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
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Sonic Zhang authored
The serial TX IRQ is not simply (RX IRQ + 1) on some Blackfin chips, so move the values to the platform resources. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bob Liu <lliubbo@gmail.com>
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git://github.com/pmundt/linux-shLinus Torvalds authored
* 'rmobile-fixes-for-linus' of git://github.com/pmundt/linux-sh: ARM: mach-shmobile: cpuidle single/global and last_state fixes ARM: mach-shmobile: move helper macro PORTCR to sh_pfc.h ARM: mach-shmobile: move helper macro PORT_xx to sh_pfc.h ARM: mach-shmobile: move helper macro PORT_DATA_xx to sh_pfc.h ARM: mach-shmobile: ap4evb: remove white space from end of line ARM: mach-shmobile: clock-sh7372: remove un-necessary index ARM: mach-shmobile: kota2: add comment out separator ARM: mach-shmobile: sh73a0: add MMC data pin pull-up
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git://github.com/pmundt/linux-shLinus Torvalds authored
* 'sh-fixes-for-linus' of git://github.com/pmundt/linux-sh: mailmap: Fix up some renesas attributions sh: clkfwk: Kill off remaining debugfs cruft. drivers: sh: Kill off dead pathname for runtime PM stub. drivers: sh: Generalize runtime PM platform stub. sh: Wire up process_vm syscalls. sh: clkfwk: add clk_rate_mult_range_round() serial: sh-sci: Fix up SH-2A SCIF support. sh: Fix cached/uncaced address calculation in 29bit mode
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