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2011-06-15xen: When calling power_off, don't call the halt function.Tom Goetz1-1/+8
.. As it won't actually power off the machine. Reported-by: Sven Köhler <[email protected]> Tested-by: Sven Köhler <[email protected]> Signed-off-by: Tom Goetz <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-06-15kbuild: Call depmod.sh via shellMichal Marek1-1/+2
The script has the executable bit in git, but plain old patch(1) can't create executable files. Reported-by: Tetsuo Handa <[email protected]> Signed-off-by: Michal Marek <[email protected]>
2011-06-15perf: clear out make flags when calling kernel make kernelverAndy Whitcroft1-1/+1
When generating the perf version from the kernel version using 'make kernelver' it is necessary to clear out any MAKEFLAGS otherwise they may trigger additional output which pollute the contents. Signed-off-by: Andy Whitcroft <[email protected]> Signed-off-by: Michal Marek <[email protected]>
2011-06-15nfs4.1: mark layout as bad on error path in _pnfs_return_layoutFred Isaman1-0/+2
Signed-off-by: Fred Isaman <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15xen: Fix compile warning when CONFIG_SMP is not defined.Konrad Rzeszutek Wilk1-1/+1
.. which is quite benign. drivers/xen/events.c:398: warning: unused variable ‘desc’ Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-06-15xen: support CONFIG_MAXSMPAndrew Jones2-1/+9
The MAXSMP config option requires CPUMASK_OFFSTACK, which in turn requires we init the memory for the maps while we bring up the cpus. MAXSMP also increases NR_CPUS to 4096. This increase in size exposed an issue in the argument construction for multicalls from xen_flush_tlb_others. The args should only need space for the actual number of cpus. Also in 2.6.39 it exposes a bootup problem. BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff8157a1d3>] set_cpu_sibling_map+0x123/0x30d ... Call Trace: [<ffffffff81039a3f>] ? xen_restore_fl_direct_reloc+0x4/0x4 [<ffffffff819dc4db>] xen_smp_prepare_cpus+0x36/0x135 .. CC: [email protected] Signed-off-by: Andrew Jones <[email protected]> [v2: Updated to compile on 3.0] [v3: Updated to compile when CONFIG_SMP is not defined] Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
2011-06-15Btrfs: set no_trans_join after trying to expand the transactionJosef Bacik1-3/+11
We can lockup if we try to allow new writers join the transaction and we have flushoncommit set or have a pending snapshot. This is because we set no_trans_join and then loop around and try to wait for ordered extents again. The problem is the ordered endio stuff needs to join the transaction, which it can't do because no_trans_join is set. So instead wait until after this loop to set no_trans_join and then make sure to wait for num_writers == 1 in case anybody got started in between us exiting the loop and setting no_trans_join. This could easily be reproduced by mounting -o flushoncommit and running xfstest 13. It cannot be reproduced with this patch. Thanks, Reported-by: Jim Schutt <[email protected]> Signed-off-by: Josef Bacik <[email protected]>
2011-06-15Btrfs: protect the pending_snapshots list with trans_lockJosef Bacik1-0/+2
Currently there is nothing protecting the pending_snapshots list on the transaction. We only hold the directory mutex that we are snapshotting and a read lock on the subvol_sem, so we could race with somebody else creating a snapshot in a different directory and end up with list corruption. So protect this list with the trans_lock. Thanks, Signed-off-by: Josef Bacik <[email protected]>
2011-06-15Btrfs: fix path leakage on subvol deletionJosef Bacik1-0/+1
The delayed ref patch accidently removed the btrfs_free_path in btrfs_unlink_subvol, this puts it back and means we don't leak a path. Thanks, Signed-off-by: Josef Bacik <[email protected]>
2011-06-15nfs4.1: prevent race that allowed use of freed layout in _pnfs_return_layoutFred Isaman1-2/+2
mark_matching_lsegs_invalid could put the last ref to the layout, so the get_layout_hdr needs to be called first. Signed-off-by: Fred Isaman <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFSv4.1: need to put_layout_hdr on _pnfs_return_layout error pathBenny Halevy1-0/+1
We always get a reference on the layout header and we rely on nfs4_layoutreturn_release to put it. If we hit an allocation error before starting the rpc proc we bail out early without dereferncing the layout header properly. Signed-off-by: Benny Halevy <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFS: (d)printks should use %zd for ssize_t argumentsDavid Howells1-1/+1
(d)printks should use %zd for ssize_t arguments not %ld, otherwise they might get a warning. I see the following with MN10300. fs/nfs/objlayout/objlayout.c: In function 'objlayout_read_done': fs/nfs/objlayout/objlayout.c:294: warning: format '%ld' expects type 'long int', but argument 3 has type 'ssize_t' Signed-off-by: David Howells <[email protected]> cc: Trond Myklebust <[email protected]> cc: [email protected] Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFSv4.1: fix break condition in pnfs_find_lsegBenny Halevy1-1/+1
The break condition to skip out of the loop got broken when cmp_layout was change. Essentially, we want to stop looking once we know no layout on the remainder of the list can match the first byte of the looked-up range. Reported-by: Peng Tao <[email protected]> Signed-off-by: Benny Halevy <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15nfs4.1: fix several problems with _pnfs_return_layoutFred Isaman2-7/+9
_pnfs_return_layout had the following problems: - it did not call pnfs_free_lseg_list on all paths - it unintentionally did a forgetful return when there was no outstanding io - it raced with concurrent LAYOUTGETS Signed-off-by: Fred Isaman <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFSv4.1: allow zero fh array in filelayout decode layoutAndy Adamson1-5/+10
Signed-off-by: Andy Adamson <[email protected]> cc:[email protected] [2.6.39] Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFSv4.1: allow nfs_fhget to succeed with mounted on fileidAndy Adamson3-11/+36
Commit 28331a46d88459788c8fca72dbb0415cd7f514c9 "Ensure we request the ordinary fileid when doing readdirplus" changed the meaning of NFS_ATTR_FATTR_FILEID which used to be set when FATTR4_WORD1_MOUNTED_ON_FILED was requested. Allow nfs_fhget to succeed with only a mounted on fileid when crossing a mountpoint or a referral. Ask for the fileid of the absent file system if mounted_on_fileid is not supported. Signed-off-by: Andy Adamson <[email protected]> cc:[email protected] [2.6.39] Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFSv4.1: Fix a refcounting issue in the pNFS device id cacheTrond Myklebust1-0/+1
When we add something to the global device id cache, we need to bump the reference count, so that the cache itself holds a reference. Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFSv4.1: deprecate headerpadsz in CREATE_SESSIONBenny Halevy3-9/+6
We don't support header padding yet so better off ditching it Reported-by: Sid Moore <[email protected]> Signed-off-by: Benny Halevy <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NFS41: do not update isize if inode needs layoutcommitPeng Tao1-1/+2
nfs_update_inode will update isize if there is no queued pages. For pNFS, layoutcommit is supposed to change file size on server, the same effect as queued pages. nfs_update_inode may be called when dirty pages are written back (nfsi->npages==0) but layoutcommit is not sent, and it will change client file size according to server file size. Then client ends up losing what it just writes back in pNFS path. So we should skip updating client file size if file needs layoutcommit. Signed-off-by: Peng Tao <[email protected]> Cc: [email protected] [2.6.39] Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15NLM: Don't hang forever on NLM unlock requestsTrond Myklebust4-2/+13
If the NLM daemon is killed on the NFS server, we can currently end up hanging forever on an 'unlock' request, instead of aborting. Basically, if the rpcbind request fails, or the server keeps returning garbage, we really want to quit instead of retrying. Tested-by: Vasily Averin <[email protected]> Signed-off-by: Trond Myklebust <[email protected]> Cc: [email protected]
2011-06-15NFS: fix umount of pnfs filesystemsWeston Andros Adamson2-5/+12
Unmounting a pnfs filesystem hangs using filelayout and possibly others. This fixes the use of the rcu protected node by making use of a new 'tmpnode' for the temporary purge list. Also, the spinlock shouldn't be held when calling synchronize_rcu(). Signed-off-by: Weston Andros Adamson <[email protected]> Signed-off-by: Andy Adamson <[email protected]> Signed-off-by: Trond Myklebust <[email protected]>
2011-06-15ALSA: lola - Fix section mismatchTakashi Iwai1-1/+1
Add missing __devinit. Signed-off-by: Takashi Iwai <[email protected]>
2011-06-15mwl8k: Tell firmware to generate CCMP headerNishant Sarmukadam1-1/+3
Post commit e4eefec73ea0a740bfe8736e3ac30dfe92fe392b, the stack is not generating the CCMP header for us anymore. This broke the CCMP functionality since firmware was not doing this either. Set a flag to tell the firmware to generate the CCMP header Signed-off-by: Nishant Sarmukadam <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-06-15mwifiex: Fixing NULL pointer dereferenceYogesh Ashok Powar1-0/+2
Following OOPS was seen when booting with card inserted BUG: unable to handle kernel NULL pointer dereference at 0000004c IP: [<f8b7718c>] cfg80211_get_drvinfo+0x21/0x115 [cfg80211] *pde = 00000000 Oops: 0000 [#1] SMP Modules linked in: iwl3945 iwl_legacy mwifiex_sdio mac80211 11 sdhci_pci sdhci pl2303 'ethtool' on the mwifiex device returned this OOPS as wiphy_dev() returned NULL. Adding missing set_wiphy_dev() call to fix the problem. Signed-off-by: Yogesh Ashok Powar <[email protected]> Signed-off-by: John W. Linville <[email protected]>
2011-06-15sched: Check if lowest_mask is initialized in find_lowest_rq()Steven Rostedt1-0/+4
On system boot up, the lowest_mask is initialized with an early_initcall(). But RT tasks may wake up on other early_initcall() callers before the lowest_mask is initialized, causing a system crash. Commit "d72bce0e67 rcu: Cure load woes" was the first commit to wake up RT tasks in early init. Before this commit this bug should not happen. Reported-by: Andrew Theurer <[email protected]> Tested-by: Andrew Theurer <[email protected]> Tested-by: Paul E. McKenney <[email protected]> Signed-off-by: Steven Rostedt <[email protected]> Acked-by: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2011-06-15sched: Fix need_resched() when checking peemptHillf Danton1-1/+1
The RT preempt check tests the wrong task if NEED_RESCHED is set. It currently checks the local CPU task. It is supposed to check the task that is running on the runqueue we are about to wake another task on. Signed-off-by: Hillf Danton <[email protected]> Reviewed-by: Yong Zhang <[email protected]> Signed-off-by: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
2011-06-15ARM: mach-shmobile: mackerel: tidyup usbhs driver settingsKuninori Morimoto1-15/+6
- usb0 pipe is same as default. own pipe config is not needed - usb1 lost get_id function Signed-off-by: Kuninori Morimoto <[email protected]> Acked-by: Magnus Damm <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-06-15fbdev: sh_mobile_hdmi: fix regression: statically enable RTPMGuennadi Liakhovetski1-13/+5
A recent modification to the runtime PM code on mach-shmobile made a wrong RTPM implementation in the sh_mobile_hdmi driver apparent, which broke HDMI hotplug detection support on ap4evb. This patch does not implement a proper dynamic RTPM support for sh_mobile_hdmi, instead it restores the previous working state by statically enabling it. A more power-efficient solution should be implemented for the next kernel version. Signed-off-by: Guennadi Liakhovetski <[email protected]> Signed-off-by: Paul Mundt <[email protected]>
2011-06-14signal.c: fix kernel-doc notationRandy Dunlap1-1/+1
Fix kernel-doc warnings in signal.c: Warning(kernel/signal.c:2374): No description found for parameter 'nset' Warning(kernel/signal.c:2374): Excess function parameter 'set' description in 'sys_rt_sigprocmask' Signed-off-by: Randy Dunlap <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-06-15Merge branch 'for-linus' of git://git.infradead.org/users/eparis/selinux ↵James Morris2-1/+39
into for-linus
2011-06-14rcu: Use softirq to address performance regressionShaohua Li8-6/+35
Commit a26ac2455ffcf3(rcu: move TREE_RCU from softirq to kthread) introduced performance regression. In an AIM7 test, this commit degraded performance by about 40%. The commit runs rcu callbacks in a kthread instead of softirq. We observed high rate of context switch which is caused by this. Out test system has 64 CPUs and HZ is 1000, so we saw more than 64k context switch per second which is caused by RCU's per-CPU kthread. A trace showed that most of the time the RCU per-CPU kthread doesn't actually handle any callbacks, but instead just does a very small amount of work handling grace periods. This means that RCU's per-CPU kthreads are making the scheduler do quite a bit of work in order to allow a very small amount of RCU-related processing to be done. Alex Shi's analysis determined that this slowdown is due to lock contention within the scheduler. Unfortunately, as Peter Zijlstra points out, the scheduler's real-time semantics require global action, which means that this contention is inherent in real-time scheduling. (Yes, perhaps someone will come up with a workaround -- otherwise, -rt is not going to do well on large SMP systems -- but this patch will work around this issue in the meantime. And "the meantime" might well be forever.) This patch therefore re-introduces softirq processing to RCU, but only for core RCU work. RCU callbacks are still executed in kthread context, so that only a small amount of RCU work runs in softirq context in the common case. This should minimize ksoftirqd execution, allowing us to skip boosting of ksoftirqd for CONFIG_RCU_BOOST=y kernels. Signed-off-by: Shaohua Li <[email protected]> Tested-by: "Alex,Shi" <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]>
2011-06-14rcu: Simplify curing of load woesPaul E. McKenney2-54/+22
Make the functions creating the kthreads wake them up. Leverage the fact that the per-node and boost kthreads can run anywhere, thus dispensing with the need to wake them up once the incoming CPU has gone fully online. Signed-off-by: Paul E. McKenney <[email protected]> Tested-by: Daniel J Blueman <[email protected]>
2011-06-14x86 idle: APM requires pm_idle/default_idle unconditionally when a moduleAndy Whitcroft1-2/+2
[ Also from Ben Hutchings <[email protected]> and Vitaliy Ivanov <[email protected]> ] Commit 06ae40ce073d ("x86 idle: EXPORT_SYMBOL(default_idle, pm_idle) only when APM demands it") removed the export for pm_idle/default_idle unless the apm module was modularised and CONFIG_APM_CPU_IDLE was set. But the apm module uses pm_idle/default_idle unconditionally, CONFIG_APM_CPU_IDLE only affects the bios idle threshold. Adjust the export accordingly. [ Used #ifdef instead of #if defined() as it's shorter, and what both Ben and Vitaliy used.. Andy, you're out-voted ;) - Linus ] Reported-by: Randy Dunlap <[email protected]> Acked-by: Jiri Kosina <[email protected]> Acked-by: Ingo Molnar <[email protected]> Acked-by: Len Brown <[email protected]> Signed-off-by: Andy Whitcroft <[email protected]> Signed-off-by: Vitaliy Ivanov <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
2011-06-14Merge branch 'for-linus-fixes' of ↵Linus Torvalds6-40/+74
git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu * 'for-linus-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu: m68k: use kernel processor defines for conditional optimizations m68knommu: create config options for CPU classes m68knommu: fix linker script exported name sections
2011-06-14Merge branch 'for-linus' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: TOMOYO: Fix oops in tomoyo_mount_acl().
2011-06-14Merge branch 'for-linus' of ↵Linus Torvalds19-5/+30
git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/avr32-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/egtvedt/avr32-2.6: avr32, exec: remove redundant set_fs(USER_DS) avr32: make intc_resume() return void to conform to syscore_ops avr32: add some more at91 to cpu.h definition avr32: set CONFIG_CC_OPTIMIZE_FOR_SIZE=y for all defconfigs avr32/at32ap: fix mapping of platform device id for USART avr32: fix use of non-existing portnr variable in at32_map_usart()
2011-06-14Merge branch 'drm-fixes' of ↵Linus Torvalds16-50/+59
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm: Compare only lower 32 bits of framebuffer map offsets drm/i915: Don't leak in i915_gem_shmem_pread_slow() drm/radeon/kms: do bounds checking for 3D_LOAD_VBPNTR and bump array limit drm/radeon/kms: fix mac g5 quirk x86/uv/x2apic: update for change in pci bridge handling. alpha, drm: Remove obsolete Alpha support in MGA DRM code alpha/drm: Cleanup Alpha support in DRM generic code savage: remove unnecessary if statement drm/radeon: fix GUI idle IH debug statements drm/radeon/kms: check modes against max pixel clock drm: fix fbs in DRM_IOCTL_MODE_GETRESOURCES ioctl
2011-06-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds5-42/+73
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] update cifs version to 1.73 [CIFS] trivial cleanup fscache cFYI and cERROR messages cifs: correctly handle NULL tcon pointer in CIFSTCon cifs: show sec= option in /proc/mounts cifs: don't allow cifs_reconnect to exit with NULL socket pointer CIFS: Fix sparse error
2011-06-14Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds8-49/+152
* 'for-linus' of git://neil.brown.name/md: md/raid5: remove unusual use of bio_iovec_idx() md/raid5: fix FUA request handling in ops_run_io() md/raid5: fix raid5_set_bi_hw_segments md:Documentation/md.txt - fix typo md/bitmap: remove unused fields from struct bitmap md/bitmap: use proper accessor macro md: check ->hot_remove_disk when removing disk md: Using poll /proc/mdstat can monitor the events of adding a spare disks MD: use is_power_of_2 macro MD: raid5 do not set fullsync MD: support initial bitmap creation in-kernel MD: add sync_super to mddev_t struct MD: raid1 changes to allow use by device mapper MD: move thread wakeups into resume MD: possible typo MD: no sync IO while suspended MD: no integrity register if no gendisk
2011-06-14Merge branch 'fixes' of ↵Linus Torvalds2-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Remove cpufreq_stats sysfs entries on module unload. MAINTAINERS: Update CPU FREQUENCY patterns
2011-06-14SELinux: skip file_name_trans_write() when policy downgraded.Roy.Li1-0/+3
When policy version is less than POLICYDB_VERSION_FILENAME_TRANS, skip file_name_trans_write(). Signed-off-by: Roy.Li <[email protected]> Signed-off-by: Eric Paris <[email protected]>
2011-06-14[CIFS] update cifs version to 1.73Steve French1-1/+1
Signed-off-by: Steve French <[email protected]>
2011-06-14xfs: fix ->mknod() return value on xfs_get_acl() failureAl Viro1-1/+1
->mknod() should return negative on errors and PTR_ERR() gives already negative value... Signed-off-by: Al Viro <[email protected]> Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Alex Elder <[email protected]>
2011-06-14[CIFS] trivial cleanup fscache cFYI and cERROR messagesSteve French2-30/+27
... for uniformity and cleaner debug logs. Signed-off-by: Suresh Jayaraman <[email protected]> Signed-off-by: Steve French <[email protected]>
2011-06-14Merge branch 'fixes-v3.0-rc3' into devel-fixesTony Lindgren462-2774/+5017
2011-06-14OMAP1: PM: register notifiers with generic clock ops even when !PM_RUNTIMEKevin Hilman2-4/+8
When runtime PM is disabled, device clocks need to be enabled on device add and disabled on device remove. This currently is not happening because in the !PM_RUNTIME case, no notifiers are registered for OMAP1 devices. Fix this by ensuring notifiers are registered, even in the !PM_RUNTIME case. Reported-by: Janusz Krzysztofik <[email protected]> Tested-by: Janusz Krzysztofik <[email protected]> Signed-off-by: Kevin Hilman <[email protected]> Signed-off-by: Tony Lindgren <[email protected]>
2011-06-14avr32, exec: remove redundant set_fs(USER_DS)Mathias Krause1-1/+0
The address limit is already set in flush_old_exec() so this set_fs(USER_DS) is redundant. Signed-off-by: Mathias Krause <[email protected]> Signed-off-by: Hans-Christian Egtvedt <[email protected]>
2011-06-14avr32: make intc_resume() return void to conform to syscore_opsHans-Christian Egtvedt1-3/+1
This patch removes the unneeded, and now wrong, return 0 from intc_resume() and lets the function return void instead. This matches the resume callback in struct syscore_ops. Signed-off-by: Hans-Christian Egtvedt <[email protected]>
2011-06-14avr32: add some more at91 to cpu.h definitionNicolas Ferre1-0/+12
Somme common drivers will need those at91 cpu_is_xxx() definitions. Those definitions are already in Linus' tree so if we want to use them in common drivers, we will need them in AVR32 cpu.h file. Signed-off-by: Nicolas Ferre <[email protected]> Acked-by: Hans-Christian Egtvedt <[email protected]>
2011-06-14avr32: set CONFIG_CC_OPTIMIZE_FOR_SIZE=y for all defconfigsHans-Christian Egtvedt15-0/+15
This patch makes sure the kconfig option CC_OPTIMIZE_FOR_SIZE is set to yes for all default configuration files. This ensures the kernel is optimized for size, and avoids potential relocation truncated to fit problems. Signed-off-by: Hans-Christian Egtvedt <[email protected]>
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