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2011-12-08md: ensure new badblocks are handled promptly.NeilBrown1-0/+1
When we mark blocks as bad we need them to be acknowledged by the metadata handler promptly. For an in-kernel metadata handler that was already being done. But for an external metadata handler we need to alert it of the change by sending a notification through the sysfs file. This adds that notification. Signed-off-by: NeilBrown <neilb@suse.de>
2011-12-08md: bad blocks shouldn't cause a Blocked status on a Faulty device.NeilBrown1-1/+2
Once a device is marked Faulty the badblocks - whether acknowledged or not - become irrelevant. So they shouldn't cause the device to be marked as Blocked. Without this patch, a process might write "-blocked" to clear the Blocked status, but while that will correctly fail the device, it won't remove the apparent 'blocked' status. Signed-off-by: NeilBrown <neilb@suse.de>
2011-12-08md: take a reference to mddev during sysfs access.NeilBrown1-1/+18
When we are accessing an mddev via sysfs we know that the mddev cannot disappear because it has an embedded kobj which is refcounted by sysfs. And we also take the mddev_lock. However this is not enough. The final mddev_put could have been called and the mddev_delayed_delete is waiting for sysfs to let go so it can destroy the kobj and mddev. In this state there are a lot of changes that should not be attempted. To to guard against this we: - initialise mddev->all_mddevs in on last put so the state can be easily detected. - in md_attr_show and md_attr_store, check ->all_mddevs under all_mddevs_lock and mddev_get the mddev if it still appears to be active. This means that if we get to sysfs as the mddev is being deleted we will get -EBUSY. rdev_attr_store and rdev_attr_show are similar but already have sufficient protection. They check that rdev->mddev still points to mddev after taking mddev_lock. As this is cleared before delayed removal which can only be requested under the mddev_lock, this ensure the rdev and mddev are still alive. Signed-off-by: NeilBrown <neilb@suse.de>
2011-12-08md: refine interpretation of "hold_active == UNTIL_IOCTL".NeilBrown1-2/+2
We like md devices to disappear when they really are not needed. However it is not possible to tell from the current state whether it is needed or not. We can only tell from recent history of changes. In particular immediately after we create an md device it looks very similar to immediately after we have finished with it. So we always preserve a newly created md device until something significant happens. This state is stored in 'hold_active'. The normal case is to keep it until an ioctl happens, as that will normally either activate it, or explicitly de-activate it. If it doesn't then it was probably created by mistake and it is now time to get rid of it. We can also modify an array via sysfs (instead of via ioctl) and we currently treat any change via sysfs like an ioctl as a sign that if it now isn't more active, it should be destroyed. However this is not appropriate as changes made via sysfs are more gradual so we should look for a more definitive change. So this patch only clears 'hold_active' from UNTIL_IOCTL to clear when the array_state is changed via sysfs. Other changes via sysfs are ignored. Signed-off-by: NeilBrown <neilb@suse.de>
2011-12-08Merge branch 'fixes' of ↵Olof Johansson2-7/+10
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
2011-12-08Merge branch '3.2-rc-fixes' of ↵Linus Torvalds22-659/+425
git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending * '3.2-rc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (25 commits) iscsi-target: Fix hex2bin warn_unused compile message target: Don't return an error if disabling unsupported features target/rd: fix or rewrite the copy routine target/rd: simplify the page/offset computation target: remove the unused se_dev_list target/file: walk properly over sg list target: remove unused struct fields target: Fix page length in emulated INQUIRY VPD page 86h target: Handle 0 correctly in transport_get_sectors_6() target: Don't return an error status for 0-length READ and WRITE iscsi-target: Use kmemdup rather than duplicating its implementation iscsi-target: Add missing F_BIT for iscsi_tm_rsp iscsi-target: Fix residual count hanlding + remove iscsi_cmd->residual_count target: Reject SCSI data overflow for fabrics using transport_generic_map_mem_to_cmd target: remove the unused t_task_pt_sgl and t_task_pt_sgl_num se_cmd fields target: remove the t_tasks_bidi se_cmd field target: remove the t_tasks_fua se_cmd field target: remove the se_ordered_node se_cmd field target: remove the se_obj_ptr and se_orig_obj_ptr se_cmd fields target: Drop config_item_name usage in fabric TFO->free_wwn() ...
2011-12-08Btrfs: try to allocate from cluster even at LOOP_NO_EMPTY_SIZEAlexandre Oliva1-8/+18
If we reach LOOP_NO_EMPTY_SIZE, we won't even try to use a cluster that others might have set up. Odds are that there won't be one, but if someone else succeeded in setting it up, we might as well use it, even if we don't try to set up a cluster again. Signed-off-by: Alexandre Oliva <oliva@lsd.ic.unicamp.br> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-12-08Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds4-188/+200
* 'for-linus' of git://oss.sgi.com/xfs/xfs: xfs: fix the logspace waiting algorithm xfs: fix nfs export of 64-bit inodes numbers on 32-bit kernels xfs: fix allocation length overflow in xfs_bmapi_write()
2011-12-08Merge branch 'pm-fixes' of ↵Linus Torvalds1-2/+4
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm * 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / Driver core: leave runtime PM enabled during system shutdown
2011-12-08Merge branch 'for-linus' of ↵Linus Torvalds2-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k: m68k: Wire up process_vm_{read,write}v
2011-12-08Merge branch 'perf/urgent' of git://github.com/acmel/linux into perf/urgentIngo Molnar2-2/+3
2011-12-08PM / Driver core: leave runtime PM enabled during system shutdownAlan Stern1-2/+4
Disabling all runtime PM during system shutdown turns out not to be a good idea, because some devices may need to be woken up from a low-power state at that time. The whole point of disabling runtime PM for system shutdown was to prevent untimely runtime-suspend method calls. This patch (as1504) accomplishes the same result by incrementing the usage count for each device and waiting for ongoing runtime-PM callbacks to finish. This is what we already do during system suspend and hibernation, which makes sense since the shutdown method is pretty much a legacy analog of the pm->poweroff method. This fixes a recent regression on some OMAP systems introduced by commit af8db1508f2c9f3b6e633e2d2d906c6557c617f9 (PM / driver core: disable device's runtime PM during shutdown). Reported-and-tested-by: NeilBrown <neilb@suse.de> Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
2011-12-08spi/gpio: fix section mismatch warningManuel Lauss1-2/+2
Fixes: The function __devinit spi_gpio_probe() references a function __init spi_gpio_alloc.isra.4(). If spi_gpio_alloc.isra.4 is only used by spi_gpio_probe then annotate spi_gpio_alloc.isra.4 with a matching annotation. [wsa: fix spi_gpio_request(), too] Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2011-12-08spi/fsl-espi: disable CONFIG_SPI_FSL_ESPI=m buildJiri Slaby1-2/+2
When spi_fsl_espi is chosen to be built as a module, there is a build error because we test only CONFIG_SPI_FSL_ESPI in declaration of struct mpc8xxx_spi in drivers/spi/spi_fsl_lib.h. Also some called functions are not exported. So we forbid CONFIG_SPI_FSL_ESPI to be tristate here. The error looks like: drivers/spi/spi_fsl_espi.c: In function 'fsl_espi_bufs': drivers/spi/spi_fsl_espi.c:232: error: 'struct mpc8xxx_spi' has no member named 'len' ... Signed-off-by: Jiri Slaby <jslaby@suse.cz> Acked-by: Kumar Gala <galak@kernel.crashing.org> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2011-12-08spi/nuc900: Include linux/module.hAxel Lin1-0/+1
Include linux/module.h to fix below build error: CC drivers/spi/spi-nuc900.o drivers/spi/spi-nuc900.c:484: error: 'THIS_MODULE' undeclared here (not in a function) drivers/spi/spi-nuc900.c:489: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-nuc900.c:489: warning: data definition has no type or storage class drivers/spi/spi-nuc900.c:489: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' drivers/spi/spi-nuc900.c:489: warning: function declaration isn't a prototype drivers/spi/spi-nuc900.c:490: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-nuc900.c:490: warning: data definition has no type or storage class drivers/spi/spi-nuc900.c:490: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' drivers/spi/spi-nuc900.c:490: warning: function declaration isn't a prototype drivers/spi/spi-nuc900.c:491: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-nuc900.c:491: warning: data definition has no type or storage class drivers/spi/spi-nuc900.c:491: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' drivers/spi/spi-nuc900.c:491: warning: function declaration isn't a prototype drivers/spi/spi-nuc900.c:492: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-nuc900.c:492: warning: data definition has no type or storage class drivers/spi/spi-nuc900.c:492: warning: type defaults to 'int' in declaration of 'MODULE_ALIAS' drivers/spi/spi-nuc900.c:492: warning: function declaration isn't a prototype make[2]: *** [drivers/spi/spi-nuc900.o] Error 1 make[1]: *** [drivers/spi] Error 2 make: *** [drivers] Error 2 Signed-off-by: Axel Lin <axel.lin@gmail.com> Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2011-12-08spi/ath79: fix compile error due to missing includeGabor Juhos1-0/+1
Whithout including 'linux/module.h' spi-ath79 driver fails to compile with the these errors: drivers/spi/spi-ath79.c:273:12: error: 'THIS_MODULE' undeclared here (not in a function) drivers/spi/spi-ath79.c:278:20: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-ath79.c:278:1: warning: data definition has no type or storage class drivers/spi/spi-ath79.c:278:1: warning: type defaults to 'int' in declaration of 'MODULE_DESCRIPTION' drivers/spi/spi-ath79.c:278:20: warning: function declaration isn't a prototype drivers/spi/spi-ath79.c:279:15: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-ath79.c:279:1: warning: data definition has no type or storage class drivers/spi/spi-ath79.c:279:1: warning: type defaults to 'int' in declaration of 'MODULE_AUTHOR' drivers/spi/spi-ath79.c:279:15: warning: function declaration isn't a prototype drivers/spi/spi-ath79.c:280:16: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-ath79.c:280:1: warning: data definition has no type or storage class drivers/spi/spi-ath79.c:280:1: warning: type defaults to 'int' in declaration of 'MODULE_LICENSE' drivers/spi/spi-ath79.c:280:16: warning: function declaration isn't a prototype drivers/spi/spi-ath79.c:281:14: error: expected declaration specifiers or '...' before string constant drivers/spi/spi-ath79.c:281:1: warning: data definition has no type or storage class drivers/spi/spi-ath79.c:281:1: warning: type defaults to 'int' in declaration of 'MODULE_ALIAS' drivers/spi/spi-ath79.c:281:14: warning: function declaration isn't a prototype Signed-off-by: Gabor Juhos <juhosg@openwrt.org> Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
2011-12-07of/irq: Get rid of NO_IRQ usageAnton Vorontsov1-9/+4
PPC32/64 defines NO_IRQ to zero, so no problems expected. ARM defines NO_IRQ to -1, but OF code relies on IRQ domains support, which returns correct ('0') value in 'no irq' case. So everything should be fine. Other arches might break if some of their OF drivers rely on NO_IRQ being not 0. If so, the drivers must be fixed, finally. [ Rob Herring points out that microblaze should be fixed, and has posted a patch for testing for that. - Linus ] Signed-off-by: Anton Vorontsov <anton.vorontsov@linaro.org> Acked-by: Wolfram Sang <w.sang@pengutronix.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-12-07ALSA: hda/realtek - Fix lost speaker volume controlsTakashi Iwai1-7/+30
When there are the same or more number of HP pins are available, HP pins are used as the primary outputs instead of the speaker pins. But, in some cases (especially with ALC663 & co), some DACs are available only with a later pin and it's assigned to a speaker, and since the driver parses the pins from the lower NID, such a DAC was skipped eventually without assignments. This resulted in a regression, the missing speaker volume control in the new parser. As a workaround for this, now the driver retries the pin->DAC mapping again after restoring the speaker-pins as primary. This is still an ad hoc fix, but it works so far for most of Realtek codecs. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-07ALSA: hda/realtek - Create "Bass Speaker" for two speaker pinsTakashi Iwai1-0/+2
On systems with two speaker pins, the secondary speaker pin is mostly assigned to a bass speaker instead of a surround. Thus it makes more sense to rename the control properly. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-07ALSA: hda/realtek - Don't create extra controls with channel suffixTakashi Iwai1-9/+15
The multiple headphone or speaker pins are usually provided to output the same stream unlike line-out jacks (which are supposed to be multi-channel surrounds). Thus giving a mixer name like "Headphone Surround" is rather confusing. Instead, when multiple headphone volumes are available, use index with the same "Headphone" name. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-07Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds3-7/+11
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: vmwgfx: Use kcalloc instead of kzalloc to allocate array drm/i915: fix infinite recursion on unbind due to ilk vt-d w/a drm/radeon/kms: fix return type for radeon_encoder_get_dp_bridge_encoder_id
2011-12-07Merge branch 'for-linus' of ↵Linus Torvalds7-69/+100
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix apparmor dereferencing potentially freed dentry, sanitize __d_path() API
2011-12-07perf: Do no try to schedule task events if there are noneGleb Natapov1-2/+2
perf_event_sched_in() shouldn't try to schedule task events if there are none otherwise task's ctx->is_active will be set and will not be cleared during sched_out. This will prevent newly added events from being scheduled into the task context. Fixes a boo-boo in commit 1d5f003f5a9 ("perf: Do not set task_ctx pointer in cpuctx if there are no events in the context"). Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20111122140821.GF2557@redhat.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-07vmwgfx: Use kcalloc instead of kzalloc to allocate arrayThomas Meyer1-2/+2
The advantage of kcalloc is, that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107 Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Reviewed-by: Jakob Bornecrantz <jakob@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-07drm/i915: fix infinite recursion on unbind due to ilk vt-d w/aDaniel Vetter1-1/+6
The recursion loop goes retire_requests->unbind->gpu_idle->retire_reqeusts. Every time we go through this we need a - active object that can be retired - and there are no other references to that object than the one from the active list, so that it gets unbound and freed immediately. Otherwise the recursion stops. So the recursion is only limited by the number of objects that fit these requirements sitting in the active list any time retire_request is called. Issue exercised by tests/gem_unref_active_buffers from i-g-t. There's been a decent bikeshed discussion whether it wouldn't be better to pass around a flag, but imo this is o.k. for such a limited case that only supports a w/a. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=42180 Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Chris Wilson <chris@chris-wilson> [ickle- we built better bikesheds, but this keeps the rain off for now] Tested-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-07drm/radeon/kms: fix return type for radeon_encoder_get_dp_bridge_encoder_idAlex Deucher1-4/+3
Seems like something got mis-merged here. Noticed by kallisti5 on IRC. Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2011-12-07Merge branch 'samsung-fixes-2' of ↵Arnd Bergmann4-24/+8
git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
2011-12-07fix apparmor dereferencing potentially freed dentry, sanitize __d_path() APIAl Viro7-69/+100
__d_path() API is asking for trouble and in case of apparmor d_namespace_path() getting just that. The root cause is that when __d_path() misses the root it had been told to look for, it stores the location of the most remote ancestor in *root. Without grabbing references. Sure, at the moment of call it had been pinned down by what we have in *path. And if we raced with umount -l, we could have very well stopped at vfsmount/dentry that got freed as soon as prepend_path() dropped vfsmount_lock. It is safe to compare these pointers with pre-existing (and known to be still alive) vfsmount and dentry, as long as all we are asking is "is it the same address?". Dereferencing is not safe and apparmor ended up stepping into that. d_namespace_path() really wants to examine the place where we stopped, even if it's not connected to our namespace. As the result, it looked at ->d_sb->s_magic of a dentry that might've been already freed by that point. All other callers had been careful enough to avoid that, but it's really a bad interface - it invites that kind of trouble. The fix is fairly straightforward, even though it's bigger than I'd like: * prepend_path() root argument becomes const. * __d_path() is never called with NULL/NULL root. It was a kludge to start with. Instead, we have an explicit function - d_absolute_root(). Same as __d_path(), except that it doesn't get root passed and stops where it stops. apparmor and tomoyo are using it. * __d_path() returns NULL on path outside of root. The main caller is show_mountinfo() and that's precisely what we pass root for - to skip those outside chroot jail. Those who don't want that can (and do) use d_path(). * __d_path() root argument becomes const. Everyone agrees, I hope. * apparmor does *NOT* try to use __d_path() or any of its variants when it sees that path->mnt is an internal vfsmount. In that case it's definitely not mounted anywhere and dentry_path() is exactly what we want there. Handling of sysctl()-triggered weirdness is moved to that place. * if apparmor is asked to do pathname relative to chroot jail and __d_path() tells it we it's not in that jail, the sucker just calls d_absolute_path() instead. That's the other remaining caller of __d_path(), BTW. * seq_path_root() does _NOT_ return -ENAMETOOLONG (it's stupid anyway - the normal seq_file logics will take care of growing the buffer and redoing the call of ->show() just fine). However, if it gets path not reachable from root, it returns SEQ_SKIP. The only caller adjusted (i.e. stopped ignoring the return value as it used to do). Reviewed-by: John Johansen <john.johansen@canonical.com> ACKed-by: John Johansen <john.johansen@canonical.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: stable@vger.kernel.org
2011-12-07xfs: fix the logspace waiting algorithmChristoph Hellwig2-183/+177
Apply the scheme used in log_regrant_write_log_space to wake up any other threads waiting for log space before the newly added one to log_regrant_write_log_space as well, and factor the code into readable helpers. For each of the queues we have add two helpers: - one to try to wake up all waiting threads. This helper will also be usable by xfs_log_move_tail once we remove the current opportunistic wakeups in it. - one to sleep on t_wait until enough log space is available, loosely modelled after Linux waitqueues. And use them to reimplement the guts of log_regrant_write_log_space and log_regrant_write_log_space. These two function now use one and the same algorithm for waiting on log space instead of subtly different ones before, with an option to completely unify them in the near future. Also move the filesystem shutdown handling to the common caller given that we had to touch it anyway. Based on hard debugging and an earlier patch from Chandra Seetharaman <sekharan@us.ibm.com>. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chandra Seetharaman <sekharan@us.ibm.com> Tested-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Ben Myers <bpm@sgi.com>
2011-12-07Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds19-132/+155
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: net: Silence seq_scale() unused warning ipv4:correct description for tcp_max_syn_backlog pasemi_mac: Fix building as module netback: Fix alert message. r8169: fix Rx index race between FIFO overflow recovery and NAPI handler. r8169: Rx FIFO overflow fixes. ipv4: Fix peer validation on cached lookup. ipv4: make sure RTO_ONLINK is saved in routing cache iwlwifi: change the default behavior of watchdog timer iwlwifi: do not re-configure HT40 after associated iwlagn: fix HW crypto for TX-only keys Revert "mac80211: clear sta.drv_priv on reconfiguration" mac80211: fill rate filter for internal scan requests cfg80211: amend regulatory NULL dereference fix cfg80211: fix race on init and driver registration
2011-12-06Merge branch 'perf-urgent-for-linus' of ↵Linus Torvalds6-5/+15
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: ftrace: Fix hash record accounting bug perf: Fix parsing of __print_flags() in TP_printk() jump_label: jump_label_inc may return before the code is patched ftrace: Remove force undef config value left for testing tracing: Restore system filter behavior tracing: fix event_subsystem ref counting
2011-12-06m68k: Wire up process_vm_{read,write}vGeert Uytterhoeven2-1/+5
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Greg Ungerer <gerg@uclinux.org>
2011-12-06net: Silence seq_scale() unused warningStephen Boyd1-0/+2
On a CONFIG_NET=y build net/core/secure_seq.c:22: warning: 'seq_scale' defined but not used Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06ipv4:correct description for tcp_max_syn_backlogPeter Pan(潘卫平)2-8/+9
Since commit c5ed63d66f24(tcp: fix three tcp sysctls tuning), sysctl_max_syn_backlog is determined by tcp_hashinfo->ehash_mask, and the minimal value is 128, and it will increase in proportion to the memory of machine. The original description for tcp_max_syn_backlog and sysctl_max_syn_backlog are out of date. Changelog: V2: update description for sysctl_max_syn_backlog Signed-off-by: Weiping Pan <panweiping3@gmail.com> Reviewed-by: Shan Wei <shanwei88@gmail.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06lockdep, kmemcheck: Annotate ->lock in lockdep_init_map()Yong Zhang1-1/+7
Since commit f59de89 ("lockdep: Clear whole lockdep_map on initialization"), lockdep_init_map() will clear all the struct. But it will break lock_set_class()/lock_set_subclass(). A typical race condition is like below: CPU A CPU B lock_set_subclass(lockA); lock_set_class(lockA); lockdep_init_map(lockA); /* lockA->name is cleared */ memset(lockA); __lock_acquire(lockA); /* lockA->class_cache[] is cleared */ register_lock_class(lockA); look_up_lock_class(lockA); WARN_ON_ONCE(class->name != lock->name); lock->name = name; So restore to what we have done before commit f59de89 but annotate ->lock with kmemcheck_mark_initialized() to suppress the kmemcheck warning reported in commit f59de89. Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Reported-by: Borislav Petkov <bp@alien8.de> Suggested-by: Vegard Nossum <vegard.nossum@gmail.com> Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: <stable@kernel.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/20111109080451.GB8124@zhy Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-06xfs: fix nfs export of 64-bit inodes numbers on 32-bit kernelsChristoph Hellwig1-4/+4
The i_ino field in the VFS inode is of type unsigned long and thus can't hold the full 64-bit inode number on 32-bit kernels. We have the full inode number in the XFS inode, so use that one for nfs exports. Note that I've also switched the 32-bit file handles types to it, just to make the code more consistent and copy & paste errors less likely to happen. Reported-by: Guoquan Yang <ygq51@hotmail.com> Reported-by: Hank Peng <pengxihan@gmail.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
2011-12-06Merge branch 'fixes' of git://gitorious.org/linux-davinci/linux-davinci into ↵Arnd Bergmann6-16/+18
fixes
2011-12-06Merge branch 'mxs/fixes' of git://git.linaro.org/people/shawnguo/linux-2.6 ↵Arnd Bergmann5-6/+7
into fixes
2011-12-06Merge branch 'fixes' of ↵Arnd Bergmann2-0/+2
git://gitorious.org/sirfprima2-kernel/sirfprima2-kernel into fixes
2011-12-06iommu/amd: Fix typo in kernel-parameters.txtSedat Dilek1-1/+1
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com> Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
2011-12-06Merge branch 'imx/fix-irqdomain' of ↵Arnd Bergmann3-14/+19
git://git.linaro.org/people/shawnguo/linux-2.6 into fixes
2011-12-06Merge branch 'at91-fixes' of git://github.com/at91linux/linux-at91 into fixesArnd Bergmann6-8/+8
2011-12-06x86/intel_mid: Kconfig select fixAlan Cox1-0/+3
If we select a symbol it should have a type declared first otherwise in some situations the config tools get upset. They are currently perhaps a bit too resilient which is why this wasn't noticed initially. Signed-off-by: Alan Cox <alan@linux.intel.com> Link: http://lkml.kernel.org/r/20111206132811.4041.32549.stgit@bob.linux.org.uk Signed-off-by: Ingo Molnar <mingo@elte.hu>
2011-12-06Merge branch 'fix/asoc' into for-linusTakashi Iwai7-16/+45
2011-12-06ALSA: hda - Fix remaining VREF mute-LED NID check in post-3.1 changesTakashi Iwai1-1/+1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-06Merge branch 'fix/hda-idt-fix' into fix/hdaTakashi Iwai1-21/+24
2011-12-06ALSA: hda - Fix GPIO LED setup for IDT 92HD75 codecsTakashi Iwai1-21/+24
Some HP laptops with IDT 92HD75 codecs may use a GPIO > 4 for the mute LED, but currently the driver doesn't check this properly, and confuses the mute LED behavior. This ended up with the silent output on some HP laptops due to having another GPIO used as external amp control. This patch fixes the problem by checking the max GPIO count and comparing with the given value from DMI entry instead of magic fixed value 4 and 8, and adding a new field to indicate the VREF mute-LED behavior. Reported-and-tested-by: Vitaliy Kulikov <Vitaliy.Kulikov@idt.com> Cc: <stable@kernel.org> [v3.1] Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-12-06perf header: Use event_name() to get an event nameAndrew Vagin1-1/+1
perf_evsel.name may be not initialized Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Arun Sharma <asharma@fb.com> Cc: devel@openvz.org Link: http://lkml.kernel.org/r/1322471015-107825-2-git-send-email-avagin@openvz.org Signed-off-by: Andrew Vagin <avagin@openvz.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2011-12-06alarmtimers: Fix time comparisonThomas Gleixner1-1/+1
The expiry function compares the timer against current time and does not expire the timer when the expiry time is >= now. That's wrong. If the timer is set for now, then it must expire. Make the condition expiry > now for breaking out the loop. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <john.stultz@linaro.org> Cc: stable@kernel.org
2011-12-06ptp: Fix clock_getres() implementationThomas Gleixner1-1/+3
The clock_getres() function must return the resolution in the timespec argument and return 0 for success. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: John Stultz <john.stultz@linaro.org> Cc: stable@kernel.org Cc: Richard Cochran <richard.cochran@omicron.at>