aboutsummaryrefslogtreecommitdiff
AgeCommit message (Collapse)AuthorFilesLines
2010-12-04parisc: Fix GSC PS/2 driver name for keyboard and mouseGuy Martin1-1/+1
Fix kernel warnings caused by the driver name of GSC PS/2 containing '/'. The following warnings are observed on a K410 system : [ 10.700000] name 'GSC PS/2 keyboard' [ 10.732000] ------------[ cut here ]------------ [ 10.772000] WARNING: at fs/proc/generic.c:323 [ 10.828000] Modules linked in: [ 10.916000] [ 10.916000] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI [ 10.936000] PSW: 00000000000001000000000000001111 Not tainted [ 10.992000] r00-03 0004000f 104fe3e0 10201ea0 00000000 [ 11.060000] r04-07 4fc405c8 00000006 4fc405c8 4fc40694 [ 11.124000] r08-11 4fc40708 10438aa0 00000001 1043bfc8 [ 11.184000] r12-15 104ff2a0 104ff2a0 4fc38634 104ff2a0 [ 11.248000] r16-19 f0001570 10479af0 f000006c 1044fe50 [ 11.308000] r20-23 00000000 00000028 104cd858 00000000 [ 11.372000] r24-27 ffffffff 0000000e 1044fe10 1043bbe0 [ 11.436000] r28-31 0000002b 00000078 4fc40800 0000000d [ 11.496000] sr00-03 00000000 00000000 00000000 00000000 [ 11.560000] sr04-07 00000000 00000000 00000000 00000000 [ 11.624000] [ 11.688000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4 [ 11.704000] IIR: 03ffe01f ISR: 00000000 IOR: 0000000d [ 11.772000] CPU: 0 CR30: 4fc40000 CR31: f01043b0 [ 11.836000] ORIG_R28: 4fc40940 [ 11.904000] IAOQ[0]: __xlate_proc_name+0x90/0xd0 [ 11.940000] IAOQ[1]: __xlate_proc_name+0x94/0xd0 [ 11.996000] RP(r2): __xlate_proc_name+0x90/0xd0 [ 12.052000] Backtrace: [ 12.108000] [<10257790>] vsnprintf+0x290/0x4f4 [ 12.136000] [ 12.188000] ---[ end trace 91bf6ece17e322dd ]--- [ 12.208000] serio: GSC PS/2 keyboard port at 0x0001c000 irq 19 @ 10:12:7 [ 12.264000] name 'GSC PS/2 mouse' [ 12.344000] ------------[ cut here ]------------ [ 12.384000] WARNING: at fs/proc/generic.c:323 [ 12.436000] Modules linked in: [ 12.524000] [ 12.528000] YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI [ 12.544000] PSW: 00000000000001000000000000001111 Tainted: G W [ 12.600000] r00-03 0004000f 104fe3e0 10201ea0 00000000 [ 12.680000] r04-07 4fc405c8 00000006 4fc405c8 4fc40694 [ 12.740000] r08-11 4fc40708 10438aa0 00000001 1043bfc8 [ 12.804000] r12-15 104ff2a0 104ff2a0 4fc38634 104ff2a0 [ 12.868000] r16-19 f0001570 10479af0 f000006c 1044fe50 [ 12.928000] r20-23 00000000 00000025 104cd858 00000000 [ 12.992000] r24-27 ffffffff 0000000e 1044fe10 1043bbe0 [ 13.056000] r28-31 00000028 00000078 4fc40800 0000000d [ 13.116000] sr00-03 00000000 00000000 00000000 00000000 [ 13.180000] sr04-07 00000000 00000000 00000000 00000000 [ 13.244000] [ 13.308000] IASQ: 00000000 00000000 IAOQ: 10201ea0 10201ea4 [ 13.324000] IIR: 03ffe01f ISR: 00000000 IOR: 0000000d [ 13.392000] CPU: 0 CR30: 4fc40000 CR31: f01043b0 [ 13.456000] ORIG_R28: 4fc40940 [ 13.524000] IAOQ[0]: __xlate_proc_name+0x90/0xd0 [ 13.560000] IAOQ[1]: __xlate_proc_name+0x94/0xd0 [ 13.616000] RP(r2): __xlate_proc_name+0x90/0xd0 [ 13.672000] Backtrace: [ 13.728000] [<10257790>] vsnprintf+0x290/0x4f4 [ 13.756000] [ 13.808000] ---[ end trace 91bf6ece17e322de ]--- [ 13.828000] serio: GSC PS/2 mouse port at 0x00020100 irq 19 @ 10:12:8 Signed-off-by: Guy Martin <[email protected]> Acked-by: Helge Deller <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2010-12-04parisc: KittyHawk LCD fixGuy Martin1-4/+13
K class aka KittyHawk don't have LED support on their LCD. Installing HP-UX confirmed this. The current led_wq fills the LCD with black characters each time it runs. The patch prevents the led_wq workqueue and its proc entry to be created for KittyHawk machines. It also increase min_cmd_delay as currently, one character out of two is lost when a string is sent to the LCD. Signed-off-by: Guy Martin <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2010-12-04parisc: convert the rest of the irq handlers to simple/percpuJames Bottomley6-11/+12
The generic conversion eliminates the spurious no_ack and no_end routines, converts all the cascaded handlers to handle_simple_irq() and makes iosapic use a modified handle_percpu_irq() to become the same as the CPU irq's. This isn't an essential change, but it eliminates the mask/unmask overhead of handle_level_irq(). Signed-off-by: James Bottomley <[email protected]> Tested-by: Helge Deller <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2010-12-04parisc: fix dino/gsc interruptsJames Bottomley1-1/+1
The essential problem we're currently having is that dino (and gsc) is a cascaded CPU interrupt. Under the old __do_IRQ() handler, our CPU interrupts basically did an ack followed by an end. In the new scheme, we replaced them with level handlers which do a mask, an ack and then an unmask (but no end). Instead, with the renaming of end to eoi, we actually want to call the percpu flow handlers, because they actually have all the characteristics we want. This patch does the conversion and gets my C360 booting again. Signed-off-by: James Bottomley <[email protected]> Signed-off-by: Kyle McMartin <[email protected]>
2010-12-04drm/i915: Factor in pixel-repeat in FDI M/N calculationChris Wilson1-0/+3
Fixes the modesetting on the secondary panel of the Libretto W100 and presumably many more Ironlake laptops with SDVO LVDS displays. Reported-and-tested-by: Matthew Willoughby <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2010-12-04ARM: 6523/1: iop: ensure sched_clock() is notraceRabin Vincent1-1/+2
Include sched.h to ensure sched_clock() has the notrace annotation, and mark any functions it calls as notrace too. Include sched.h to ensure sched_clock() has the notrace annotation, and mark any functions it calls as notrace too. Acked-by: Dan Williams <[email protected]> Signed-off-by: Rabin Vincent <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-12-04ARM: 6456/1: Fix for building DEBUG with sa11xx_base.c as a module.Marcelo Roberto Jimenez1-0/+1
This patch fixes a compilation issue when compiling PCMCIA SA1100 support as a module with PCMCIA_DEBUG enabled. The symbol soc_pcmcia_debug was not beeing exported. ARM: pcmcia: Fix for building DEBUG with sa11xx_base.c as a module. This patch fixes a compilation issue when compiling PCMCIA SA1100 support as a module with PCMCIA_DEBUG enabled. The symbol soc_pcmcia_debug was not beeing exported. Cc: <[email protected]> Signed-off-by: Marcelo Roberto Jimenez <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-12-04ARM: 6519/1: kuser: Fix incorrect cmpxchg syscall in kuser helpersDave Martin1-1/+1
The existing code invokes the syscall with rubbish in r7, due to what looks like an incorrect literal load idiom. Reviewed-by: Will Deacon <[email protected]> Signed-off-by: Dave Martin <[email protected]> Acked-by: Catalin Marinas <[email protected]> Signed-off-by: Russell King <[email protected]>
2010-12-04ALSA: hda - Enable jack sense for Thinkpad Edge 13Manoj Iyer1-0/+1
Added a quirk to cxt5066_cfg_tbl to enable jack sense for ThinkPad Edge 13. Reference: http://launchpad.net/bugs/685015 Signed-off-by: Manoj Iyer <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2010-12-04slub: Fix a crash during slabinfo -vTero Roponen1-2/+2
Commit f7cb1933621bce66a77f690776a16fe3ebbc4d58 ("SLUB: Pass active and inactive redzone flags instead of boolean to debug functions") missed two instances of check_object(). This caused a lot of warnings during 'slabinfo -v' finally leading to a crash: BUG ext4_xattr: Freepointer corrupt ... BUG buffer_head: Freepointer corrupt ... BUG ext4_alloc_context: Freepointer corrupt ... ... BUG: unable to handle kernel NULL pointer dereference at 0000000000000008 IP: [<ffffffff810a291f>] file_sb_list_del+0x1c/0x35 PGD 79d78067 PUD 79e67067 PMD 0 Oops: 0002 [#1] SMP last sysfs file: /sys/kernel/slab/:t-0000192/validate This patch fixes the problem by converting the two missed instances. Acked-by: Christoph Lameter <[email protected]> Signed-off-by: Tero Roponen <[email protected]> Signed-off-by: Pekka Enberg <[email protected]>
2010-12-03drm/i915: Death to the unnecessary 64bit divideChris Wilson1-13/+5
Use the hardware DDA to calculate the ratio with as much accuracy as is possible. Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2010-12-03Merge branch '2.6.37-rc4-pvhvm-fixes' of ↵Linus Torvalds8-41/+114
git://xenbits.xen.org/people/sstabellini/linux-pvhvm * '2.6.37-rc4-pvhvm-fixes' of git://xenbits.xen.org/people/sstabellini/linux-pvhvm: xen: unplug the emulated devices at resume time xen: fix save/restore for PV on HVM guests with pirq remapping xen: resume the pv console for hvm guests too xen: fix MSI setup and teardown for PV on HVM guests xen: use PHYSDEVOP_get_free_pirq to implement find_unbound_pirq
2010-12-03ARM: mini2440: Fix Kconfig to allow kernel to buildBen Dooks1-0/+3
The MACH_MINI2440 entry requires the backlight LED driver, but this subsystem has not been enabled and the select of LEDS_TRIGGER_BACKLIGHT alone is insufficient to enable the necessary bits of the LED driver. Add NEW_LEDS, LEDS_CLASS and LEDS_TRIGGER to the select to allow the kernel to link. This fixes the following error: drivers/built-in.o: In function `led_trigger_set': /home/ben/linux.git/drivers/leds/led-triggers.c:116: undefined reference to `led_brightness_set' Signed-off-by: Ben Dooks <[email protected]>
2010-12-03Merge branches 'upstream/core' and 'upstream/bugfix' of ↵Linus Torvalds4-35/+26
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen * 'upstream/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: allocate irq descs on any NUMA node xen: prevent crashes with non-HIGHMEM 32-bit kernels with largeish memory xen: use default_idle xen: clean up "extra" memory handling some more * 'upstream/bugfix' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen: xen: x86/32: perform initial startup on initial_page_table xen: don't bother to stop other cpus on shutdown/reboot
2010-12-03drm/i915: Clean conflicting modesetting registers upon initChris Wilson1-0/+51
If we leave the registers in a conflicting state then when we attempt to teardown the active mode, we will not disable the pipes and planes in the correct order -- leaving a plane reading from a disabled pipe and possibly leading to undefined behaviour. Reported-and-tested-by: Andy Whitcroft <[email protected]> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=32078 Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2010-12-03Merge branch 'for-linus' of ↵Linus Torvalds13-27/+35
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ASoC: omap: N810: Don't select CONFIG_OMAP_MUX but make it as dependency ALSA: hda: Use "alienware" model quirk for another SSID ASoC: WM8731: Fix incorrect mask for bypass path disable s6105-ipcam: fix compilation s6000-pcm: fix compilation s6000-i2s: fix compilation ASoC: Fix missing spin_unlock_irqrestore ALSA: Fix SNDCTL_DSP_RESET ioctl for OSS emulation ASoC: Add missing dev_set_drvdata in p1022_ds_probe ASoC: Add missing dev_set_drvdata in mpc8610_hpcd_probe ASoC: Remove unneeded !! operations while checking return value of nuc900_checkready ASoC: Fix compile error for nuc900-pcm.c ASoC: Fix prototype for nuc900_ac97_probe and nuc900_ac97_remove ASoC: Fix compile error for nuc900-ac97.c ALSA: hda: Use BIOS auto-parsing instead of existing model quirk for MEDION MD2
2010-12-03Merge branch 'linux-next' of git://git.infradead.org/ubi-2.6Linus Torvalds2-12/+29
* 'linux-next' of git://git.infradead.org/ubi-2.6: UBI: fix corrupted PEB detection for NOR flash
2010-12-03Merge branch 'sh-fixes-for-linus' of ↵Linus Torvalds10-87/+66
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh: se/7724: Remove FSI/B of GPIO init code sh: se/7724: Update clock framework of FSI clock to non-legacy sh: Assume new page cache pages have dirty dcache lines. sh: boards: mach-se: use IS_ERR() instead of NULL check sh: Add div6_reparent_clks to clock framework for FSI dma: shdma: add a MODULE_ALIAS() to allow module autoloading
2010-12-03Merge branch 'fbdev-fixes-for-linus' of ↵Linus Torvalds4-14/+25
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6 * 'fbdev-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/fbdev-2.6: lxfb: Maintain video processor palette through suspend/resume video: da8xx: Register IRQ as last thing in driver probing. framebuffer: fix fbcmap.c kernel-doc warning
2010-12-03MN10300: Implement asm/syscall.hDavid Howells1-0/+117
Implement asm/syscall.h for the MN10300 arch. Signed-off-by: David Howells <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-03UBI: fix corrupted PEB detection for NOR flashArtem Bityutskiy2-12/+29
My new shiny code for corrupted PEB detection has NOR specific bug. We tread PEB as corrupted and preserve it, if 1. EC header is OK. 2. VID header is corrupted. 3. data area is not "all 0xFFs" In case of NOR we have 'nor_erase_prepare()' quirk, which invalidates the headers before erasing the PEB. And we invalidate first the VID header, and then the EC header. So if a power cut happens after we have invalidated the VID header, but before we have invalidated the EC header, we end up with a PEB which satisfies the above 3 conditions, and the scanning code will treat it as corrupted, and will print scary warnings, wrongly. This patch fixes the issue by firt invalidating the EC header, then invalidating the VID header. In case of power cut inbetween, we still just lose the EC header, and UBI can deal with this situation gracefully. Thanks to Anatolij Gustschin <[email protected]> for tracking this down. Signed-off-by: Artem Bityutskiy <[email protected]> Reported-by: Anatolij Gustschin <[email protected]> Tested-by: Anatolij Gustschin <[email protected]>
2010-12-03ALSA: hda - Fix ThinkPad T410[s] docking station line-outJohn Baboval1-15/+16
On the docking station for the Lenovo T410 and T410s, the line-out doesn't work. The trouble seems to be that it generates a plug event, but then doesn't report that the jack is connected. So automute mutes the jack when you plug something into it. The following patch (next message) fixes it. Signed-off-by: John Baboval <john.baboval at virtualcomputer.com> Signed-off-by: Takashi Iwai <[email protected]>
2010-12-03ALSA: hda: Use model=lg quirk for LG P1 Express to enable playback and captureDaniel T Chen1-0/+1
BugLink: https://launchpad.net/bugs/595482 The original reporter states that audible playback from the internal speaker is inaudible despite the hardware being properly detected. To work around this symptom, he uses the model=lg quirk to properly enable both playback, capture, and jack sense. Another user corroborates this workaround on separate hardware. Add this PCI SSID to the quirk table to enable it for further LG P1 Expresses. Reported-and-tested-by: Philip Peitsch <[email protected]> Tested-by: nikhov Cc: <[email protected]> [2.6.32+] Signed-off-by: Daniel T Chen <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2010-12-03drivers/dma/: Use the ccflag-y instead of EXTRA_CFLAGSTracey Dent1-2/+2
Use the ccflag-y flag instead of EXTRA_CFLAGS because EXTRA_CFLAGS is deprecated and should now be switched. According to (documentation/kbuild/makefiles.txt). Signed-off-by: Tracey Dent <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-12-03dma: intel_mid_dma: fix double free on mid_setup_dma error pathAxel Lin1-2/+0
We should not call kfree(dma) in mid_setup_dma error path because the memory is allocated in intel_mid_dma_probe and will be freed in intel_mid_dma_probe error path if mid_setup_dma return error. Signed-off-by: Axel Lin <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-12-03dma: imx-dma: fix imxdma_probe error pathAxel Lin1-1/+1
otherwise, i will be -1 inside the latest iteration of the while loop. Signed-off-by: Axel Lin <[email protected]> Acked-by: Sascha Hauer <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-12-03Merge branch 'sh/urgent' into sh-fixes-for-linusPaul Mundt1-38/+5
2010-12-03sh: se/7724: Remove FSI/B of GPIO init codeNobuhiro Iwamatsu1-9/+1
se7724 board does not have FSI/B. Signed-off-by: Nobuhiro Iwamatsu <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-12-03sh: se/7724: Update clock framework of FSI clock to non-legacyNobuhiro Iwamatsu1-29/+4
Signed-off-by: Nobuhiro Iwamatsu <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2010-12-03Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French83-501/+763
2010-12-02Merge branch 'for-linus' of ↵Linus Torvalds4-10/+16
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: HID: length resolution should be reported units/mm HID: add support for F430 Force Feedback Wheel HID: egalax: Use kzalloc HID: Remove KERN_DEBUG from dbg_hid use Manually fixed trivial conflict in drivers/hid/hid-input.c (due to removal of KERN_DEBUG from dbg_hid use clashing with new keycode interface switch)
2010-12-02omap: PM debug: fix wake-on-timer debugfs dependencyKevin Hilman1-17/+17
Wakeup-on-timer code does not have/need debugfs dependency. Move the function out of debugfs ifdef. Fixes compile error when CONFIG_DEBUG_FS is disabled but PM debug is enabled. Reported-by: Tony Lindgren <[email protected]> Signed-off-by: Kevin Hilman <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2010-12-02xen: allocate irq descs on any NUMA nodeJeremy Fitzhardinge1-2/+2
Allocate irq descs on any NUMA node (we don't care) rather than specifically node 0, which may not exist. (At the moment NUMA is meaningless within a domain, so any info the kernel has is just from an SRAT table we haven't suppressed/disabled.) Signed-off-by: Jeremy Fitzhardinge <[email protected]>
2010-12-02xen: prevent crashes with non-HIGHMEM 32-bit kernels with largeish memoryJeremy Fitzhardinge1-2/+10
If this is a non-HIGHMEM 32-bit kernel, then the page structures only go up to the limit of addressable memory, even if more memory is physically present. Don't try to add that extra memory to the balloon. Signed-off-by: Jeremy Fitzhardinge <[email protected]>
2010-12-02do_exit(): make sure that we run with get_fs() == USER_DSNelson Elhage1-0/+9
If a user manages to trigger an oops with fs set to KERNEL_DS, fs is not otherwise reset before do_exit(). do_exit may later (via mm_release in fork.c) do a put_user to a user-controlled address, potentially allowing a user to leverage an oops into a controlled write into kernel memory. This is only triggerable in the presence of another bug, but this potentially turns a lot of DoS bugs into privilege escalations, so it's worth fixing. I have proof-of-concept code which uses this bug along with CVE-2010-3849 to write a zero to an arbitrary kernel address, so I've tested that this is not theoretical. A more logical place to put this fix might be when we know an oops has occurred, before we call do_exit(), but that would involve changing every architecture, in multiple places. Let's just stick it in do_exit instead. [[email protected]: update code comment] Signed-off-by: Nelson Elhage <[email protected]> Cc: KOSAKI Motohiro <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02ksm: annotate ksm_thread_mutex is no deadlock sourceKOSAKI Motohiro1-1/+6
commit 62b61f611e ("ksm: memory hotremove migration only") caused the following new lockdep warning. ======================================================= [ INFO: possible circular locking dependency detected ] ------------------------------------------------------- bash/1621 is trying to acquire lock: ((memory_chain).rwsem){.+.+.+}, at: [<ffffffff81079339>] __blocking_notifier_call_chain+0x69/0xc0 but task is already holding lock: (ksm_thread_mutex){+.+.+.}, at: [<ffffffff8113a3aa>] ksm_memory_callback+0x3a/0xc0 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (ksm_thread_mutex){+.+.+.}: [<ffffffff8108b70a>] lock_acquire+0xaa/0x140 [<ffffffff81505d74>] __mutex_lock_common+0x44/0x3f0 [<ffffffff81506228>] mutex_lock_nested+0x48/0x60 [<ffffffff8113a3aa>] ksm_memory_callback+0x3a/0xc0 [<ffffffff8150c21c>] notifier_call_chain+0x8c/0xe0 [<ffffffff8107934e>] __blocking_notifier_call_chain+0x7e/0xc0 [<ffffffff810793a6>] blocking_notifier_call_chain+0x16/0x20 [<ffffffff813afbfb>] memory_notify+0x1b/0x20 [<ffffffff81141b7c>] remove_memory+0x1cc/0x5f0 [<ffffffff813af53d>] memory_block_change_state+0xfd/0x1a0 [<ffffffff813afd62>] store_mem_state+0xe2/0xf0 [<ffffffff813a0bb0>] sysdev_store+0x20/0x30 [<ffffffff811bc116>] sysfs_write_file+0xe6/0x170 [<ffffffff8114f398>] vfs_write+0xc8/0x190 [<ffffffff8114fc14>] sys_write+0x54/0x90 [<ffffffff810028b2>] system_call_fastpath+0x16/0x1b -> #0 ((memory_chain).rwsem){.+.+.+}: [<ffffffff8108b5ba>] __lock_acquire+0x155a/0x1600 [<ffffffff8108b70a>] lock_acquire+0xaa/0x140 [<ffffffff81506601>] down_read+0x51/0xa0 [<ffffffff81079339>] __blocking_notifier_call_chain+0x69/0xc0 [<ffffffff810793a6>] blocking_notifier_call_chain+0x16/0x20 [<ffffffff813afbfb>] memory_notify+0x1b/0x20 [<ffffffff81141f1e>] remove_memory+0x56e/0x5f0 [<ffffffff813af53d>] memory_block_change_state+0xfd/0x1a0 [<ffffffff813afd62>] store_mem_state+0xe2/0xf0 [<ffffffff813a0bb0>] sysdev_store+0x20/0x30 [<ffffffff811bc116>] sysfs_write_file+0xe6/0x170 [<ffffffff8114f398>] vfs_write+0xc8/0x190 [<ffffffff8114fc14>] sys_write+0x54/0x90 [<ffffffff810028b2>] system_call_fastpath+0x16/0x1b But it's a false positive. Both memory_chain.rwsem and ksm_thread_mutex have an outer lock (mem_hotplug_mutex). So they cannot deadlock. Thus, This patch annotate ksm_thread_mutex is not deadlock source. [[email protected]: update comment, from Hugh] Signed-off-by: KOSAKI Motohiro <[email protected]> Acked-by: Hugh Dickins <[email protected]> Cc: Andrea Arcangeli <[email protected]> Cc: Andi Kleen <[email protected]> Cc: KAMEZAWA Hiroyuki <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02mem-hotplug: introduce {un}lock_memory_hotplug()KOSAKI Motohiro3-11/+34
Presently hwpoison is using lock_system_sleep() to prevent a race with memory hotplug. However lock_system_sleep() is a no-op if CONFIG_HIBERNATION=n. Therefore we need a new lock. Signed-off-by: KOSAKI Motohiro <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Kamezawa Hiroyuki <[email protected]> Suggested-by: Hugh Dickins <[email protected]> Acked-by: Hugh Dickins <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02Documentation/filesystems/vfs.txt: fix ->repeasepage() descriptionAndrew Morton1-5/+4
->releasepage() does not remove the page from the mapping. Acked-by: Neil Brown <[email protected]> Cc: Trond Myklebust <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02vmalloc: eagerly clear ptes on vunmapJeremy Fitzhardinge3-15/+17
On stock 2.6.37-rc4, running: # mount lilith:/export /mnt/lilith # find /mnt/lilith/ -type f -print0 | xargs -0 file crashes the machine fairly quickly under Xen. Often it results in oops messages, but the couple of times I tried just now, it just hung quietly and made Xen print some rude messages: (XEN) mm.c:2389:d80 Bad type (saw 7400000000000001 != exp 3000000000000000) for mfn 1d7058 (pfn 18fa7) (XEN) mm.c:964:d80 Attempt to create linear p.t. with write perms (XEN) mm.c:2389:d80 Bad type (saw 7400000000000010 != exp 1000000000000000) for mfn 1d2e04 (pfn 1d1fb) (XEN) mm.c:2965:d80 Error while pinning mfn 1d2e04 Which means the domain tried to map a pagetable page RW, which would allow it to map arbitrary memory, so Xen stopped it. This is because vm_unmap_ram() left some pages mapped in the vmalloc area after NFS had finished with them, and those pages got recycled as pagetable pages while still having these RW aliases. Removing those mappings immediately removes the Xen-visible aliases, and so it has no problem with those pages being reused as pagetable pages. Deferring the TLB flush doesn't upset Xen because it can flush the TLB itself as needed to maintain its invariants. When unmapping a region in the vmalloc space, clear the ptes immediately. There's no point in deferring this because there's no amortization benefit. The TLBs are left dirty, and they are flushed lazily to amortize the cost of the IPIs. This specific motivation for this patch is an oops-causing regression since 2.6.36 when using NFS under Xen, triggered by the NFS client's use of vm_map_ram() introduced in 56e4ebf877b60 ("NFS: readdir with vmapped pages") . XFS also uses vm_map_ram() and could cause similar problems. Signed-off-by: Jeremy Fitzhardinge <[email protected]> Cc: Nick Piggin <[email protected]> Cc: Bryan Schumaker <[email protected]> Cc: Trond Myklebust <[email protected]> Cc: Alex Elder <[email protected]> Cc: Dave Chinner <[email protected]> Cc: Christoph Hellwig <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02cs5535-gpio: apply CS5536 errata workaround for GPIOsAndres Salomon1-2/+14
The AMD Geode CS5536 Companion Device Silicon Revision B1 Specification Update mentions the follow as issue #36: "Atomic write transactions to the atomic GPIO High Bank Feature Bit registers should only affect the bits selected [...]" "after Suspend, an atomic write transaction [...] will clear all non-selected bits of the accessed register." In other words, writing to the high bank for a single GPIO bit will clear every other GPIO bit (but only sometimes after a suspend). The workaround described is obvious and simple; do a read-modify-write. This patch does that, and documents why we're doing it. Signed-off-by: Andres Salomon <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02reiserfs: don't acquire lock recursively in reiserfs_acl_chmodFrederic Weisbecker1-2/+4
reiserfs_acl_chmod() can be called by reiserfs_set_attr() and then take the reiserfs lock a second time. Thereafter it may call journal_begin() that definitely requires the lock not to be nested in order to release it before taking the journal mutex because the reiserfs lock depends on the journal mutex already. So, aviod nesting the lock in reiserfs_acl_chmod(). Reported-by: Pawel Zawora <[email protected]> Signed-off-by: Frederic Weisbecker <[email protected]> Tested-by: Pawel Zawora <[email protected]> Cc: Jeff Mahoney <[email protected]> Cc: <[email protected]> [2.6.32.x+] Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02leds: fix up dependenciesJohannes Berg3-10/+43
It's not useful to build LED triggers when there's no LEDs that can be triggered by them. Therefore, fix up the dependencies so that this cannot happen, and fix a few users that select triggers to depend on LEDS_CLASS as well (there is also one user that also selects LEDS_CLASS, which is OK). Signed-off-by: Johannes Berg <[email protected]> Reported-by: Randy Dunlap <[email protected]> Acked-by: Randy Dunlap <[email protected]> Tested-by: Ingo Molnar <[email protected]> Cc: Arnd Hannemann <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Richard Purdie <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02vmstat: fix dirty threshold orderingWu Fengguang1-2/+2
The nr_dirty_[background_]threshold fields are misplaced before the numa_* fields, and users will read strange values. This is the right order. Before patch, nr_dirty_background_threshold will read as 0 (the value from numa_miss). numa_hit 128501 numa_miss 0 numa_foreign 0 numa_interleave 7388 numa_local 128501 numa_other 0 nr_dirty_threshold 144291 nr_dirty_background_threshold 72145 Signed-off-by: Wu Fengguang <[email protected]> Cc: Michael Rubin <[email protected]> Reviewed-by: KOSAKI Motohiro <[email protected]> Reviewed-by: Minchan Kim <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02mm/mempolicy.c: add rcu read lock to protect pid structureZeng Zhaoming1-0/+3
find_task_by_vpid() should be protected by rcu_read_lock(), to prevent free_pid() reclaiming pid. Signed-off-by: Zeng Zhaoming <[email protected]> Cc: "Paul E. McKenney" <[email protected]> Cc: KOSAKI Motohiro <[email protected]> Cc: Christoph Lameter <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02mm/hugetlb.c: avoid double unlock_page() in hugetlb_fault()Dean Nelson1-1/+2
Have hugetlb_fault() call unlock_page(page) only if it had previously called lock_page(page). Setting CONFIG_DEBUG_VM=y and then running the libhugetlbfs test suite, resulted in the tripping of VM_BUG_ON(!PageLocked(page)) in unlock_page() having been called by hugetlb_fault() when page == pagecache_page. This patch remedied the problem. Signed-off-by: Dean Nelson <[email protected]> Cc: <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2010-12-02drm/i915: Apply a workaround for transitioning from DP on pipe B to HDMI.Eric Anholt1-0/+21
This workaround only applies to Ironlake. Signed-off-by: Eric Anholt <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2010-12-02drm/i915: Always set the DP transcoder config to 8BPC.Eric Anholt2-1/+4
The pipe is always set to 8BPC, but here we were leaving whatever previous bits were set by the BIOS in place. Signed-off-by: Eric Anholt <[email protected]> Tested-by: Keith Packard <[email protected]> Signed-off-by: Chris Wilson <[email protected]> Cc: [email protected]
2010-12-02tulip: fix hang in dmfe driver on sending of big packetAlexander V. Lukyanov1-3/+3
This patch fixes hang in dmfe driver on attempt of sending a big packet. Without this patch the code stops the queue and never wakes it again. Signed-off-by: Alexander V. Lukyanov <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-12-02stmmac: priv->lock can be used uninitializedVlad Lungu1-2/+2
To reproduce: if connman (http://connman.net/) is started, inserting the stmmac module triggers a "BUG: spinlock bad magic on CPU#0". Registering the device in stmmac_probe() sends a notification to connman which brings the interface up before the lock is initialized. Signed-off-by: Vlad Lungu <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-12-02Merge branch 'staging-linus' of ↵Linus Torvalds26-169/+210
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6 * 'staging-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (27 commits) Staging: rt2870: Add USB ID for Buffalo Airstation WLI-UC-GN staging: easycap needs smp_lock.h, fixes build error Staging: batman-adv: ensure that eth_type_trans gets linear memory Staging: batman-adv: Don't remove interface with spinlock held staging: brcm80211: updated maintainers contact information staging: fix winbond build, needs delay.h Staging: line6: fix up my fixup for some sysfs attribute permissions Staging: zram: fix up my fixup for some sysfs attribute permissions Staging: udlfb: fix up my fixup for some sysfs attribute permissions Staging: samsung-laptop: fix up my fixup for some sysfs attribute permissions Staging: iio: adis16220: fix up my fixup for some sysfs attribute permissions Staging: frontier: fix up my fixup for some sysfs attribute permissions Staging: asus_oled: fix up my fixup for some sysfs attribute permissions staging: spectra: fix build error Staging: intel_sst: fix memory leak Staging: rtl8712: signedness bug in init staging: rtl8187se: Change panic to warn when RF switch turned off staging: comedi: fix memory leak Staging: quickstart: free after input_unregister_device() Staging: speakup: free after input_unregister_device() ...
Powered by cgit, Gruvboxed by Blaster4385.