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2010-08-28writeback: Fix lost wake-up shutting down writeback threadJ. Bruce Fields
Setting the task state here may cause us to miss the wake up from kthread_stop(), so we need to recheck kthread_should_stop() or risk sleeping forever in the following schedule(). Symptom was an indefinite hang on an NFSv4 mount. (NFSv4 may create multiple mounts in a temporary namespace while traversing the mount path, and since the temporary namespace is immediately destroyed, it may end up destroying a mount very soon after it was created, possibly making this race more likely.) INFO: task mount.nfs4:4314 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. mount.nfs4 D 0000000000000000 2880 4314 4313 0x00000000 ffff88001ed6da28 0000000000000046 ffff88001ed6dfd8 ffff88001ed6dfd8 ffff88001ed6c000 ffff88001ed6c000 ffff88001ed6c000 ffff88001e5003a0 ffff88001ed6dfd8 ffff88001e5003a8 ffff88001ed6c000 ffff88001ed6dfd8 Call Trace: [<ffffffff8196090d>] schedule_timeout+0x1cd/0x2e0 [<ffffffff8106a31c>] ? mark_held_locks+0x6c/0xa0 [<ffffffff819639a0>] ? _raw_spin_unlock_irq+0x30/0x60 [<ffffffff8106a5fd>] ? trace_hardirqs_on_caller+0x14d/0x190 [<ffffffff819671fe>] ? sub_preempt_count+0xe/0xd0 [<ffffffff8195fc80>] wait_for_common+0x120/0x190 [<ffffffff81033c70>] ? default_wake_function+0x0/0x20 [<ffffffff8195fdcd>] wait_for_completion+0x1d/0x20 [<ffffffff810595fa>] kthread_stop+0x4a/0x150 [<ffffffff81061a60>] ? thaw_process+0x70/0x80 [<ffffffff810cc68a>] bdi_unregister+0x10a/0x1a0 [<ffffffff81229dc9>] nfs_put_super+0x19/0x20 [<ffffffff810ee8c4>] generic_shutdown_super+0x54/0xe0 [<ffffffff810ee9b6>] kill_anon_super+0x16/0x60 [<ffffffff8122d3b9>] nfs4_kill_super+0x39/0x90 [<ffffffff810eda45>] deactivate_locked_super+0x45/0x60 [<ffffffff810edfb9>] deactivate_super+0x49/0x70 [<ffffffff81108294>] mntput_no_expire+0x84/0xe0 [<ffffffff811084ef>] release_mounts+0x9f/0xc0 [<ffffffff81108575>] put_mnt_ns+0x65/0x80 [<ffffffff8122cc56>] nfs_follow_remote_path+0x1e6/0x420 [<ffffffff8122cfbf>] nfs4_try_mount+0x6f/0xd0 [<ffffffff8122d0c2>] nfs4_get_sb+0xa2/0x360 [<ffffffff810edcb8>] vfs_kern_mount+0x88/0x1f0 [<ffffffff810ede92>] do_kern_mount+0x52/0x130 [<ffffffff81963d9a>] ? _lock_kernel+0x6a/0x170 [<ffffffff81108e9e>] do_mount+0x26e/0x7f0 [<ffffffff81106b3a>] ? copy_mount_options+0xea/0x190 [<ffffffff811094b8>] sys_mount+0x98/0xf0 [<ffffffff810024d8>] system_call_fastpath+0x16/0x1b 1 lock held by mount.nfs4/4314: #0: (&type->s_umount_key#24){+.+...}, at: [<ffffffff810edfb1>] deactivate_super+0x41/0x70 Signed-off-by: J. Bruce Fields <bfields@redhat.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com> Acked-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2010-08-27net/ipv4: Eliminate kstrdup memory leakJulia Lawall
The string clone is only used as a temporary copy of the argument val within the while loop, and so it should be freed before leaving the function. The call to strsep, however, modifies clone, so a pointer to the front of the string is kept in saved_clone, to make it possible to free it. The sematic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @r exists@ local idexpression x; expression E; identifier l; statement S; @@ *x= \(kasprintf\|kstrdup\)(...); ... if (x == NULL) S ... when != kfree(x) when != E = x if (...) { <... when != kfree(x) * goto l; ...> * return ...; } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-27fsnotify: drop two useless bools in the fnsotify main loopEric Paris
The fsnotify main loop has 2 bools which indicated if we processed the inode or vfsmount mark in that particular pass through the loop. These bool can we replaced with the inode_group and vfsmount_group variables and actually make the code a little easier to understand. Signed-off-by: Eric Paris <eparis@redhat.com>
2010-08-27fsnotify: fix list walk orderEric Paris
Marks were stored on the inode and vfsmonut mark list in order from highest memory address to lowest memory address. The code to walk those lists thought they were in order from lowest to highest with unpredictable results when trying to match up marks from each. It was possible that extra events would be sent to userspace when inode marks ignoring events wouldn't get matched with the vfsmount marks. This problem only affected fanotify when using both vfsmount and inode marks simultaneously. Signed-off-by: Eric Paris <eparis@redhat.com>
2010-08-27fanotify: Return EPERM when a process is not privilegedAndreas Gruenbacher
The appropriate error code when privileged operations are denied is EPERM, not EACCES. Signed-off-by: Andreas Gruenbacher <agruen@suse.de> Signed-off-by: Eric Paris <paris@paris.rdu.redhat.com>
2010-08-27fanotify: resize pid and reorder structureTvrtko Ursulin
resize pid and reorder the fanotify_event_metadata so it is naturally aligned and we can work towards dropping the packed attributed Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@sophos.com> Cc: Andreas Dilger <adilger@dilger.ca> Signed-off-by: Eric Paris <eparis@redhat.com>
2010-08-27Blackfin: bf52x/bf54x boards: drop unused nand page sizeBarry Song
Now that the driver for the Blackfin on-chip NFC no longer uses/respects the page_size from the platform resources (figures out the needs on the fly), drop it from the platform resources. This fixes some build errors since the defines no longer exists. Signed-off-by: Barry Song <barry.song@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-27Blackfin: punt duplicate SPORT MMR definesMike Frysinger
The common bfin_sport.h header now has unified definitions of these, so stop polluting the global namespace. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2010-08-27ASoC: soc-core: fix debugfs_pop_time file permissionsAxel Lin
I think this is a typo, debugfs_pop_time should not be executable. Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Liam Girdwood <lrg@slimloogic.co.uk> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2010-08-27libertas: if_sdio: fix buffer alignment in struct if_sdio_cardMike Rapoport
The commit 886275ce41a9751117367fb387ed171049eb6148 (param: lock if_sdio's lbs_helper_name and lbs_fw_name against sysfs changes) introduced new fields into the if_sdio_card structure. It caused missalignment of the if_sdio_card.buffer field and failure at driver load time: ~# modprobe libertas_sdio [ 62.315124] libertas_sdio: Libertas SDIO driver [ 62.319976] libertas_sdio: Copyright Pierre Ossman [ 63.020629] DMA misaligned error with device 48 [ 63.025207] mmci-omap-hs mmci-omap-hs.1: unexpected dma status 800 [ 66.005035] libertas: command 0x0003 timed out [ 66.009826] libertas: Timeout submitting command 0x0003 [ 66.016296] libertas: PREP_CMD: command 0x0003 failed: -110 Adding explicit alignment attribute for the if_sdio_card.buffer field fixes this problem. Signed-off-by: Mike Rapoport <mike@compulab.co.il> Acked-by: Marek Vasut <marek.vasut@gmail.com> Acked-by: Dan Williams <dcbw@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2010-08-27eCryptfs: Fix encrypted file name lookup regressionTyler Hicks
Fixes a regression caused by 21edad32205e97dc7ccb81a85234c77e760364c8 When file name encryption was enabled, ecryptfs_lookup() failed to use the encrypted and encoded version of the upper, plaintext, file name when performing a lookup in the lower file system. This made it impossible to lookup existing encrypted file names and any newly created files would have plaintext file names in the lower file system. https://bugs.launchpad.net/ecryptfs/+bug/623087 Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-08-27ecryptfs: properly mark init functionsJerome Marchand
Some ecryptfs init functions are not prefixed by __init and thus not freed after initialization. This patch saved about 1kB in ecryptfs module. Signed-off-by: Jerome Marchand <jmarchan@redhat.com> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-08-27fs/ecryptfs: Return -ENOMEM on memory allocation failureJulia Lawall
In this code, 0 is returned on memory allocation failure, even though other failures return -ENOMEM or other similar values. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression ret; expression x,e1,e2,e3; @@ ret = 0 ... when != ret = e1 *x = \(kmalloc\|kcalloc\|kzalloc\)(...) ... when != ret = e2 if (x == NULL) { ... when != ret = e3 return ret; } // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com>
2010-08-27workqueue: Add a workqueue chapter to the tracepoint docbookJason Baron
Add a workqueue chapter to the traceopint docbook. Current book is at: http://www.kernel.org/doc/htmldocs/tracepoint/ Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2010-08-27percpu: fix a mismatch between code and commentNamhyung Kim
When pcpu_build_alloc_info() searches best_upa value, it ignores current value if the number of waste units exceeds 1/3 of the number of total cpus. But the comment on the code says that it will ignore if wastage is over 25%. Modify the comment. Signed-off-by: Namhyung Kim <namhyung@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org>
2010-08-27percpu: fix a memory leak in pcpu_extend_area_map()Huang Shijie
The original code did not free the old map. This patch fixes it. tj: use @old as memcpy source instead of @chunk->map, and indentation and description update Signed-off-by: Huang Shijie <shijie8@gmail.com> Signed-off-by: Tejun Heo <tj@kernel.org> Cc: stable@kernel.org
2010-08-27ARM: S5PV310: Fix on Secondary CPU startupChanghwan Youn
Following occurs on boot message without this patch. CPU1: processor failed to boot Brought up 1 CPUs SMP: Total of 1 processors activated... This patch adds SYSRAM mapping for fixing Secondary CPU startup. CPU1: Booted secondary processor Brought up 2 CPUs SMP: Total of 2 processors activated... Signed-off-by: Changhwan Youn <chaos.youn@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: S5PV310: Bug fix on uclk1 and sclk_pwmJongpill Lee
This patch fixes on enable and ctrlbit of uclk1 and sclk_pwm. Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: S5PV310: Fix missed uart clocksJongpill Lee
This patch adds missed uart clocks for S5PV310/S5PC210. Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: S5PV310: Should be clk_sclk_apll not clk_mout_apllJongpill Lee
This patch adds clk_sclk_apll so that fixes on clk_mout_apll. Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: S5PV310: Fix on PLL setting for S5PV310Jongpill Lee
This patch fixes on PLL setting for S5PV310/S5PC210. Signed-off-by: Jongpill Lee <boyko.lee@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: S5PV310: Add CMU block for S5PV310 ClockKukjin Kim
This patch adds CMU block for S5PV310/S5PC210 clock. (CMU: Clock Management Unit) Of course, changed current clock addresses for it together. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: S5PV310: Fix on typo irqs.h of S5PV310Kukjin Kim
This patch fixes typo 'IRQ_WTD' in the irqs.h of S5PV310. And minor update comments. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27writeback: do not lose wakeup events when forking bdi threadsArtem Bityutskiy
This patch fixes the following issue: INFO: task mount.nfs4:1120 blocked for more than 120 seconds. "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. mount.nfs4 D 00000000fffc6a21 0 1120 1119 0x00000000 ffff880235643948 0000000000000046 ffffffff00000000 ffffffff00000000 ffff880235643fd8 ffff880235314760 00000000001d44c0 ffff880235643fd8 00000000001d44c0 00000000001d44c0 00000000001d44c0 00000000001d44c0 Call Trace: [<ffffffff813bc747>] schedule_timeout+0x34/0xf1 [<ffffffff813bc530>] ? wait_for_common+0x3f/0x130 [<ffffffff8106b50b>] ? trace_hardirqs_on+0xd/0xf [<ffffffff813bc5c3>] wait_for_common+0xd2/0x130 [<ffffffff8104159c>] ? default_wake_function+0x0/0xf [<ffffffff813beaa0>] ? _raw_spin_unlock+0x26/0x2a [<ffffffff813bc6bb>] wait_for_completion+0x18/0x1a [<ffffffff81101a03>] sync_inodes_sb+0xca/0x1bc [<ffffffff811056a6>] __sync_filesystem+0x47/0x7e [<ffffffff81105798>] sync_filesystem+0x47/0x4b [<ffffffff810e7ffd>] generic_shutdown_super+0x22/0xd2 [<ffffffff810e80f8>] kill_anon_super+0x11/0x4f [<ffffffffa00d06d7>] nfs4_kill_super+0x3f/0x72 [nfs] [<ffffffff810e7b68>] deactivate_locked_super+0x21/0x41 [<ffffffff810e7fd6>] deactivate_super+0x40/0x45 [<ffffffff810fc66c>] mntput_no_expire+0xb8/0xed [<ffffffff810fc73b>] release_mounts+0x9a/0xb0 [<ffffffff810fc7bb>] put_mnt_ns+0x6a/0x7b [<ffffffffa00d0fb2>] nfs_follow_remote_path+0x19a/0x296 [nfs] [<ffffffffa00d11ca>] nfs4_try_mount+0x75/0xaf [nfs] [<ffffffffa00d1790>] nfs4_get_sb+0x276/0x2ff [nfs] [<ffffffff810e7dba>] vfs_kern_mount+0xb8/0x196 [<ffffffff810e7ef6>] do_kern_mount+0x48/0xe8 [<ffffffff810fdf68>] do_mount+0x771/0x7e8 [<ffffffff810fe062>] sys_mount+0x83/0xbd [<ffffffff810089c2>] system_call_fastpath+0x16/0x1b The reason of this hang was a race condition: when the flusher thread is forking a bdi thread, we use 'kthread_run()', so we run it _before_ we make it visible in 'bdi->wb.task'. The bdi thread runs, does all works, and goes sleep. 'bdi->wb.task' is still NULL. And this is a dangerous time window. If at this time someone queues a work for this bdi, he does not see the bdi thread and wakes up the forker thread instead! But the forker has already forked this bdi thread, but just did not make it visible yet! The result is that we lose the wake up event for this bdi thread and the NFS4 code waits forever. To fix the problem, we should use 'ktrhead_create()' for creating bdi threads, then make them visible in 'bdi->wb.task', and only after this wake them up. This is exactly what this patch does. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
2010-08-27ARM: S5PV310: Fix on default ZRELADDR of ARCH_S5PV310Kukjin Kim
This patch adds default zreladdr of ARCH_S5PV310. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: S5PV310: Fix on GPIO base addressesKyungmin Park
The S5PV310/S5PC210 has following three GPIO base addresses. Part1 Base Address=0x11400000 Part2 Base Address=0x11000000 Part3 Base Address=0x03860000 Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> [kgene.kim@samsung.com: minor edit of title] Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2010-08-27ARM: SAMSUNG: Fix on build warning regarding VMALLOC_END typeKukjin Kim
Fix this warning: arch/arm/mm/init.c: In function 'mem_init': arch/arm/mm/init.c:644: warning: format '%08lx' expects type 'long unsigned int', but argument 12 has type 'unsigned int' And removes the useless parens and white space. Reported-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> Cc: Ben Dooks <ben-linux@fluff.org>
2010-08-27perf: Initialize callchains roots's childen hitsFrederic Weisbecker
Each histogram entry has a callchain root that stores the callchain samples. However we forgot to initialize the tracking of children hits of these roots, which then got random values on their creation. The root children hits is multiplied by the minimum percentage of hits provided by the user, and the result becomes the minimum hits expected from children branches. If the random value due to the uninitialization is big enough, then this minimum number of hits can be huge and eventually filter every children branches. The end result was invisible callchains. All we need to fix this is to initialize the children hits of the root. Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: 2.6.32.x-2.6.35.y <stable@kernel.org>
2010-08-27mxc_nand: Do not do byte accesses to the NFC buffer.John Ogness
This patch avoids byte access to the NFC buffer. Byte access to the NFC is not allowed. The patch is against linux-next 20100618. Signed-off-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Tested-by: John Ogness <john.ogness@linutronix.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-26net/caif/cfrfml.c: use asm/unaligned.hJeff Mahoney
caif does not build on ia64 starting with 2.6.32-rc1. Using asm/unaligned.h instead of linux/unaligned/le_byteshift.h fixes the issue. include/linux/unaligned/le_byteshift.h:40:50: error: redefinition of 'get_unaligned_le16' include/linux/unaligned/le_byteshift.h:45:50: error: redefinition of 'get_unaligned_le32' include/linux/unaligned/le_byteshift.h:50:50: error: redefinition of 'get_unaligned_le64' include/linux/unaligned/le_byteshift.h:55:51: error: redefinition of 'put_unaligned_le16' include/linux/unaligned/le_byteshift.h:60:51: error: redefinition of 'put_unaligned_le32' include/linux/unaligned/le_byteshift.h:65:51: error: redefinition of 'put_unaligned_le64' include/linux/unaligned/le_struct.h:31:51: note: previous definition of 'put_unaligned_le64' was here Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-27vgaarb: Wrap vga_(get|put) in CONFIG_VGA_ARBChris Wilson
Fix link failure without the vga arbitrator. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Dave Airlie <airlied@redhat.com> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-27drm/radeon/kms: add missing scratch update in dp_detectAlex Deucher
Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-27drm/modes: Fix CVT-R modeline generationAdam Jackson
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16651 Signed-off-by: Adam Jackson <ajax@redhat.com> Tested-by: Adam Serbinski <adam@serbinksi.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-27drm: fix regression in drm locking since BKL removal.Arnd Bergmann
This locking path needs proper auditing but probably too late for changes at this point for 2.6.36, so lets go with the quick fix, which is to drop the lock around schedule. Reported-by: Andreas Schwab <schwab@linux-m68k.org> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-27drm/radeon/kms: remove stray radeon_i2c_destroyAlex Deucher
I missed this one in the i2c unification patch. This is handled in the core radeon i2c code now. Signed-off-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-27drm: mm: fix range restricted allocationsDaniel Vetter
With the code cleanup in 7a6b2896f261894dde287d3faefa4b432cddca53 is the first bad commit commit 7a6b2896f261894dde287d3faefa4b432cddca53 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Fri Jul 2 15:02:15 2010 +0100 drm_mm: extract check_free_mm_node I've botched up the range-restriction checks. The result is usually an X server dying with SIGBUS in libpixman (software fallback rendering). Change the code to adjust the start and end for range restricted allocations. IMHO this even makes the code a bit clearer. Fixes regression bug: https://bugs.freedesktop.org/show_bug.cgi?id=29738 Reported-by-Tested-by: Till MAtthiesen <entropy@everymail.net> Acked-by: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-08-27lguest: Odd FixesRusty Russell
It's been in fix-mode-only for a while now. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2010-08-27lguest: clean up warnings in demonstration launcher.Rusty Russell
These days the headers we use are in glibc. If those are too old, you can add the -I lines to get the kernel headers. In file included from ../../include/linux/if_tun.h:19, from lguest.c:33: ../../include/linux/types.h:13:2: warning: #warning "Attempt to use kernel headers from user space, see http://kernelnewbies.org/KernelHeaders" lguest.c: In function ‘setup_tun_net’: lguest.c:1456: warning: dereferencing pointer ‘sin’ does break strict-aliasing rules lguest.c:1457: warning: dereferencing pointer ‘sin’ does break strict-aliasing rules lguest.c:1450: note: initialized from here Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2010-08-27Merge remote branch 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next into ↵Dave Airlie
drm-fixes * 'nouveau/for-airlied' of /ssd/git/drm-nouveau-next: drm/nouveau: drop drm_global_mutex before sleeping in submission path drm: export drm_global_mutex for drivers to use drm/nv20: Don't use pushbuf calls on the original nv20. drm/nouveau: Fix TMDS on some DCB1.5 boards. drm/nouveau: Fix backlight control on PPC machines with an internal TMDS panel. drm/nv30: Apply modesetting to the correct slave encoder drm/nouveau: Use a helper function to match PCI device/subsystem IDs. drm/nv50: add dcb type 14 to enum to prevent compiler complaint
2010-08-27drm/nouveau: drop drm_global_mutex before sleeping in submission pathBen Skeggs
If we keep hold of the mutex here, the process which currently holds the buffer object will never be able to release it, causing a deadlock. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-08-27drm: export drm_global_mutex for drivers to useBen Skeggs
Nouveau needs to be able to drop the mutex before sleeping to prevent a deadlock from occuring. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2010-08-26ax25: missplaced sock_put(sk)Bernard Pidoux F6BVP
This patch moves a missplaced sock_put(sk) after bh_unlock_sock(sk) like in other parts of AX25 driver. Signed-off-by: Bernard Pidoux <f6bvp@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-26qlge: reset the chip before freeing the buffersBreno Leitao
Qlge is freeing the buffers before stopping the card DMA, and this can cause some severe error, as a EEH event on PPC. This patch just stop the card and then free the resources. Signed-off-by: Breno Leitao <leitao@linux.vnet.ibm.com> Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-26l2tp: test for ethernet header in l2tp_eth_dev_recv()Eric Dumazet
close https://bugzilla.kernel.org/show_bug.cgi?id=16529 Before calling dev_forward_skb(), we should make sure skb head contains at least an ethernet header, even if length included in upper layer said so. Use pskb_may_pull() to make sure this ethernet header is present in skb head. Reported-by: Thomas Heil <heil@terminal-consulting.de> Reported-by: Ian Campbell <Ian.Campbell@eu.citrix.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-08-26PM QoS: Fix inline documentation.Saravana Kannan
Fix the pm_qos_add_request() kerneldoc comment that doesn't reflect the behavior of the function after the last PM QoS update. Signed-off-by: Saravana Kannan <skannan@codeaurora.org> Acked-by: mark gross <markgross@thegnar.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2010-08-26nfsd: fix NULL dereference in nfsd_statfs()Takashi Iwai
The commit ebabe9a9001af0af56c0c2780ca1576246e7a74b pass a struct path to vfs_statfs introduced the struct path initialization, and this seems to trigger an Oops on my machine. fh_dentry field may be NULL and set later in fh_verify(), thus the initialization of path must be after fh_verify(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Minchan Kim <minchan.kim@gmail.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-08-26Merge commit 'v2.6.36-rc1' into HEADJ. Bruce Fields
2010-08-26nfsd4: fix downgrade/lock logicJ. Bruce Fields
If we already had a RW open for a file, and get a readonly open, we were piggybacking on the existing RW open. That's inconsistent with the downgrade logic which blows away the RW open assuming you'll still have a readonly open. Also, make sure there is a readonly or writeonly open available for locking, again to prevent bad behavior in downgrade cases when any RW open may be lost. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-08-26nfsd4: typo fix in find_any_fileJ. Bruce Fields
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2010-08-26nfsd4: bad BUG() in preprocess_stateid_opJ. Bruce Fields
It's OK for this function to return without setting filp--we do it in the special-stateid case. And there's a legitimate case where we can hit this, since we do permit reads on write-only stateid's. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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