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2010-02-16dm mpath: fix stall when requeueing ioKiyoshi Ueda
This patch fixes the problem that system may stall if target's ->map_rq returns DM_MAPIO_REQUEUE in map_request(). E.g. stall happens on 1 CPU box when a dm-mpath device with queue_if_no_path bounces between all-paths-down and paths-up on I/O load. When target's ->map_rq returns DM_MAPIO_REQUEUE, map_request() requeues the request and returns to dm_request_fn(). Then, dm_request_fn() doesn't exit the I/O dispatching loop and continues processing the requeued request again. This map and requeue loop can be done with interrupt disabled, so 1 CPU system can be stalled if this situation happens. For example, commands below can stall my 1 CPU box within 1 minute or so: # dmsetup table mp mp: 0 2097152 multipath 1 queue_if_no_path 0 1 1 service-time 0 1 2 8:144 1 1 # while true; do dd if=/dev/mapper/mp of=/dev/null bs=1M count=100; done & # while true; do \ > dmsetup message mp 0 "fail_path 8:144" \ > dmsetup suspend --noflush mp \ > dmsetup resume mp \ > dmsetup message mp 0 "reinstate_path 8:144" \ > done To fix the problem above, this patch changes dm_request_fn() to exit the I/O dispatching loop once if a request is requeued in map_request(). Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: stable@kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2010-02-16dm raid1: fix null pointer dereference in suspendTakahiro Yasui
When suspending a failed mirror, bios are completed by mirror_end_io() and __rh_lookup() in dm_rh_dec() returns NULL where a non-NULL return value is required by design. Fix this by not changing the state of the recovery failed region from DM_RH_RECOVERING to DM_RH_NOSYNC in dm_rh_recovery_end(). Issue On 2.6.33-rc1 kernel, I hit the bug when I suspended the failed mirror by dmsetup command. BUG: unable to handle kernel NULL pointer dereference at 00000020 IP: [<f94f38e2>] dm_rh_dec+0x35/0xa1 [dm_region_hash] ... EIP: 0060:[<f94f38e2>] EFLAGS: 00010046 CPU: 0 EIP is at dm_rh_dec+0x35/0xa1 [dm_region_hash] EAX: 00000286 EBX: 00000000 ECX: 00000286 EDX: 00000000 ESI: eff79eac EDI: eff79e80 EBP: f6915cd4 ESP: f6915cc4 DS: 007b ES: 007b FS: 00d8 GS: 0033 SS: 0068 Process dmsetup (pid: 2849, ti=f6914000 task=eff03e80 task.ti=f6914000) ... Call Trace: [<f9530af6>] ? mirror_end_io+0x53/0x1b1 [dm_mirror] [<f9413104>] ? clone_endio+0x4d/0xa2 [dm_mod] [<f9530aa3>] ? mirror_end_io+0x0/0x1b1 [dm_mirror] [<f94130b7>] ? clone_endio+0x0/0xa2 [dm_mod] [<c02d6bcb>] ? bio_endio+0x28/0x2b [<f952f303>] ? hold_bio+0x2d/0x62 [dm_mirror] [<f952f942>] ? mirror_presuspend+0xeb/0xf7 [dm_mirror] [<c02aa3e2>] ? vmap_page_range+0xb/0xd [<f9414c8d>] ? suspend_targets+0x2d/0x3b [dm_mod] [<f9414ca9>] ? dm_table_presuspend_targets+0xe/0x10 [dm_mod] [<f941456f>] ? dm_suspend+0x4d/0x150 [dm_mod] [<f941767d>] ? dev_suspend+0x55/0x18a [dm_mod] [<c0343762>] ? _copy_from_user+0x42/0x56 [<f9417fb0>] ? dm_ctl_ioctl+0x22c/0x281 [dm_mod] [<f9417628>] ? dev_suspend+0x0/0x18a [dm_mod] [<f9417d84>] ? dm_ctl_ioctl+0x0/0x281 [dm_mod] [<c02c3c4b>] ? vfs_ioctl+0x22/0x85 [<c02c422c>] ? do_vfs_ioctl+0x4cb/0x516 [<c02c42b7>] ? sys_ioctl+0x40/0x5a [<c0202858>] ? sysenter_do_call+0x12/0x28 Analysis When recovery process of a region failed, dm_rh_recovery_end() function changes the state of the region from RM_RH_RECOVERING to DM_RH_NOSYNC. When recovery_complete() is executed between dm_rh_update_states() and dm_writes() in do_mirror(), bios are processed with the region state, DM_RH_NOSYNC. However, the region data is freed without checking its pending count when dm_rh_update_states() is called next time. When bios are finished by mirror_end_io(), __rh_lookup() in dm_rh_dec() returns NULL even though a valid return value are expected. Solution Remove the state change of the recovery failed region from DM_RH_RECOVERING to DM_RH_NOSYNC in dm_rh_recovery_end(). We can remove the state change because: - If the region data has been released by dm_rh_update_states(), a new region data is created with the state of DM_RH_NOSYNC, and bios are processed according to the DM_RH_NOSYNC state. - If the region data has not been released by dm_rh_update_states(), a state of the region is DM_RH_RECOVERING and bios are put in the delayed_bio list. The flag change from DM_RH_RECOVERING to DM_RH_NOSYNC in dm_rh_recovery_end() was added in the following commit: dm raid1: handle resync failures author Jonathan Brassow <jbrassow@redhat.com> Thu, 12 Jul 2007 16:29:04 +0000 (17:29 +0100) http://git.kernel.org/linus/f44db678edcc6f4c2779ac43f63f0b9dfa28b724 Signed-off-by: Takahiro Yasui <tyasui@redhat.com> Reviewed-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2010-02-16dm raid1: fail writes if errors are not handled and log failsMikulas Patocka
If the mirror log fails when the handle_errors option was not selected and there is no remaining valid mirror leg, writes return success even though they weren't actually written to any device. This patch completes them with EIO instead. This code path is taken: do_writes: bio_list_merge(&ms->failures, &sync); do_failures: if (!get_valid_mirror(ms)) (false) else if (errors_handled(ms)) (false) else bio_endio(bio, 0); The logic in do_failures is based on presuming that the write was already tried: if it succeeded at least on one leg (without handle_errors) it is reported as success. Reference: https://bugzilla.redhat.com/show_bug.cgi?id=555197 Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2010-02-16dm log: userspace fix overhead_size calcuationsJonathan Brassow
This patch fixes two bugs that revolve around the miscalculation and misuse of the variable 'overhead_size'. 'overhead_size' is the size of the various header structures used during communication. The first bug is the use of 'sizeof' with the pointer of a structure instead of the structure itself - resulting in the wrong size being computed. This is then used in a check to see if the payload (data_size) would be to large for the preallocated structure. Since the bug produces a smaller value for the overhead, it was possible for the structure to be breached. (Although the current users of the code do not currently send enough data to trigger this bug.) The second bug is that the 'overhead_size' value is used to compute how much of the preallocated space should be cleared before populating it with fresh data. This should have simply been 'sizeof(struct cn_msg)' not overhead_size. The fact that 'overhead_size' was computed incorrectly made this problem "less bad" - leaving only a pointer's worth of space at the end uncleared. Thus, this bug was never producing a bad result, but still needs to be fixed - especially now that the value is computed correctly. Cc: stable@kernel.org Signed-off-by: Jonathan Brassow <jbrassow@redhat.com Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2010-02-16dm snapshot: persistent annotate work_queue as on stackMike Snitzer
chunk_io() declares its 'struct mdata_req' on the stack and then initializes its 'struct work_struct' member. Annotate the initialization of this workqueue with INIT_WORK_ON_STACK to suppress a debugobjects warning seen when CONFIG_DEBUG_OBJECTS_WORK is enabled. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2010-02-16dm stripe: avoid divide by zero with invalid stripe countNikanth Karthikesan
If a table containing zero as stripe count is passed into stripe_ctr the code attempts to divide by zero. This patch changes DM_TABLE_LOAD to return -EINVAL if the stripe count is zero. We now get the following error messages: device-mapper: table: 253:0: striped: Invalid stripe count device-mapper: ioctl: error adding target to table Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Cc: stable@kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2010-02-15Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: Btrfs: btrfs_mark_extent_written uses the wrong slot
2010-02-15Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: firewire: ohci: retransmit isochronous transmit packets on cycle loss firewire: net: fix panic in fwnet_write_complete
2010-02-15Merge branch 'fix/hda' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - Correct ASUA blacklist for MSI brokenness
2010-02-15NFS: Too many GETATTR and ACCESS calls after direct I/OChuck Lever
The cached read and write paths initialize fattr->time_start in their setup procedures. The value of fattr->time_start is propagated to read_cache_jiffies by nfs_update_inode(). Subsequent calls to nfs_attribute_timeout() will then use a good time stamp when computing the attribute cache timeout, and squelch unneeded GETATTR calls. Since the direct I/O paths erroneously leave the inode's fattr->time_start field set to zero, read_cache_jiffies for that inode is set to zero after any direct read or write operation. This triggers an otw GETATTR or ACCESS call to update the file's attribute and access caches properly, even when the NFS READ or WRITE replies have usable post-op attributes. Make sure the direct read and write setup code performs the same fattr initialization as the cached I/O paths to prevent unnecessary GETATTR calls. This was likely introduced by commit 0e574af1 in 2.6.15, which appears to add new nfs_fattr_init() call sites in the cached read and write paths, but not in the equivalent places in fs/nfs/direct.c. A subsequent commit in the same series, 33801147, introduces the fattr->time_start field. Interestingly, the direct write reschedule path already has a call to nfs_fattr_init() in the right place. Reported-by: Quentin Barnes <qbarnes@yahoo-inc.com> Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Cc: stable@kernel.org Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-15Merge branch 'timers-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: hrtimer, softirq: Fix hrtimer->softirq trampoline
2010-02-15Merge branch 'reiserfs/kill-bkl' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing * 'reiserfs/kill-bkl' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing: reiserfs: Fix softlockup while waiting on an inode
2010-02-15Merge branch 'drm-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: drm/radeon/kms: make sure retry count increases. drm/radeon/kms/atom: use get_unaligned_le32() for ctx->ps drm/ttm: Fix a bug occuring when validating a buffer object in a range. drm: Fix a bug in the range manager.
2010-02-15Merge branch 'sh/for-2.6.33' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 * 'sh/for-2.6.33' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: sh64: fix tracing of signals.
2010-02-15Merge branch 'tracing-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: tracing/kprobes: Fix probe parsing tracing: Fix circular dead lock in stack trace
2010-02-15Merge branch 'perf-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: perf top: Fix help text alignment perf: Fix hypervisor sample reporting perf: Make bp_len type to u64 generic across the arch
2010-02-15ALSA: hda - Correct ASUA blacklist for MSI brokennessTakashi Iwai
The MSI blacklist entry for ASUS mobo added in the commit 8ce28d6abff34886d3797b25324c940471b99164 was based on the alsa-info output wrongly posted. Fix the id to the right one now. Reported-by: Sid Boyce <sboyce@blueyonder.co.uk> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-15drm/radeon/kms: make sure retry count increases.Dave Airlie
In testing I've never seen it go past 1 retry anyways but better safe than sorry. Reported by Droste on irc. Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-15sh64: fix tracing of signals.Paul Mundt
This follows the parisc change to ensure that tracehook_signal_handler() is aware of when we are single-stepping in order to ptrace_notify() appropriately. While this was implemented for 32-bit SH, sh64 neglected to make use of TIF_SINGLESTEP when it was folded in with the 32-bit code, resulting in ptrace_notify() never being called. As sh64 uses all of the other abstractions already, this simply plugs in the thread flag in the appropriate enable/disable paths and fixes up the tracehook notification accordingly. With this in place, sh64 is brought in line with what 32-bit is already doing. Reported-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2010-02-15drm/radeon/kms/atom: use get_unaligned_le32() for ctx->psMatt Turner
Noticed on a DEC Alpha. Start up into console mode caused 15 unaligned accesses, and starting X caused another 48. Signed-off-by: Matt Turner <mattst88@gmail.com> CC: Jerome Glisse <jglisse@redhat.com> CC: Alex Deucher <alexdeucher@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-15drm/ttm: Fix a bug occuring when validating a buffer object in a range.Thomas Hellstrom
If the buffer object was already in the requested memory type, but outside of the requested range it was never moved into the requested range. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-15drm: Fix a bug in the range manager.Thomas Hellstrom
When searching for free space in a range, the function could return a node extending outside of the given range. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2010-02-14reiserfs: Fix softlockup while waiting on an inodeFrederic Weisbecker
When we wait for an inode through reiserfs_iget(), we hold the reiserfs lock. And waiting for an inode may imply waiting for its writeback. But the inode writeback path may also require the reiserfs lock, which leads to a deadlock. We just need to release the reiserfs lock from reiserfs_iget() to fix this. Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Tested-by: Christian Kujau <lists@nerdbynature.de> Cc: Chris Mason <chris.mason@oracle.com>
2010-02-14firewire: ohci: retransmit isochronous transmit packets on cycle lossClemens Ladisch
In isochronous transmit DMA descriptors, link the skip address pointer back to the descriptor itself. When a cycle is lost, the controller will send the packet in the next cycle, instead of terminating the entire DMA program. There are two reasons for this: * This behaviour is compatible with the old IEEE1394 stack. Old applications would not expect the DMA program to stop in this case. * Since the OHCI driver does not report any uncompleted packets, the context would stop silently; clients would not have any chance to detect and handle this error without a watchdog timer. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Pieter Palmers notes: "The reason I added this retry behavior to the old stack is because some cards now and then fail to send a packet (e.g. the o2micro card in my dell laptop). I couldn't figure out why exactly this happens, my best guess is that the card cannot fetch the payload data on time. This happens much more frequently when sending large packets, which leads me to suspect that there are some contention issues with the DMA that fills the transmit FIFO. In the old stack it was a pretty critical issue as it resulted in a freeze of the userspace application. The omission of a packet doesn't necessarily have to be an issue. E.g. in IEC61883 streams the DBC field can be used to detect discontinuities in the stream. So as long as the other side doesn't bail when no [packet] is present in a cycle, there is not really a problem. I'm not convinced though that retrying is the proper solution, but it is simple and effective for what it had to do. And I think there are no reasons not to do it this way. Userspace can still detect this by checking the cycle the descriptor was sent in." Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (changelog, comment)
2010-02-14perf top: Fix help text alignmentKirill Smelkov
Print this: Mapped keys: [d] display refresh delay. (2) [e] display entries (lines). (46) [f] profile display filter (count). (5) [F] annotate display filter (percent). (5%) [s] annotate symbol. (NULL) [S] stop annotation. [K] hide kernel_symbols symbols. (no) [U] hide user symbols. (no) [z] toggle sample zeroing. (0) [qQ] quit. instead of: Mapped keys: [d] display refresh delay. (2) [e] display entries (lines). (46) [f] profile display filter (count). (5) [F] annotate display filter (percent). (5%) [s] annotate symbol. (NULL) [S] stop annotation. [K] hide kernel_symbols symbols. (no) [U] hide user symbols. (no) [z] toggle sample zeroing. (0) [qQ] quit. Signed-off-by: Kirill Smelkov <kirr@landau.phys.spbu.ru> Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20100212162059.GA30041@landau.phys.spbu.ru> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-14tracing/kprobes: Fix probe parsingHeiko Carstens
Trying to add a probe like: echo p:myprobe 0x10000 > /sys/kernel/debug/tracing/kprobe_events will fail since the wrong pointer is passed to strict_strtoul when trying to convert the address to an unsigned long. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Acked-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> LKML-Reference: <20100210162346.GA6933@osiris.boeblingen.de.ibm.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2010-02-12Btrfs: btrfs_mark_extent_written uses the wrong slotShaohua Li
My test do: fallocate a big file and do write. The file is 512M, but after file write is done btrfs-debug-tree shows: item 6 key (257 EXTENT_DATA 0) itemoff 3516 itemsize 53 extent data disk byte 1103101952 nr 536870912 extent data offset 0 nr 399634432 ram 536870912 extent compression 0 Looks like a regression introducted by 6c7d54ac87f338c479d9729e8392eca3f76e11e1, where we set wrong slot. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Acked-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2010-02-12Linux 2.6.33-rc8Linus Torvalds
2010-02-12Merge branch 'fix/hda' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda - use WARN_ON_ONCE() for zero-division detection
2010-02-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/anholt/drm-intel: drm/i915: hold ref on flip object until it completes drm/i915: Fix crash while aborting hibernation drm/i915: Correctly return -ENOMEM on allocation failure in cmdbuf ioctls. drm/i915: fix pipe source image setting in flip command drm/i915: fix flip done interrupt on Ironlake drm/i915: untangle page flip completion drm/i915: handle FBC and self-refresh better drm/i915: Increase fb alignment to 64k drm/i915: Update write_domains on active list after flush. drm/i915: Rework DPLL calculation parameters for Ironlake
2010-02-12ALSA: hda - use WARN_ON_ONCE() for zero-division detectionTakashi Iwai
Replace the zero-division warning message with WARN_ON_ONCE() per the advice by Linus. This shouldn't happen, but if it happens, it's possible that the bug happens often due to buggy IRQs. Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-02-12parisc: fix tracing of signalsKyle McMartin
Mike Frysinger pointed out that calling tracehook_signal_handler with stepping=0 missed testing the thread flags, resulting in not calling ptrace_notify. Fix this by testing if we're single stepping or branch stepping and setting the flag accordingly. Tested, seems to work. Reported-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-02-12Merge branch 'fix/hda' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 * 'fix/hda' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: ALSA: hda-intel: Avoid divide by zero crash
2010-02-12Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: regulator/lp3971: vol_map out of bounds in lp3971_{ldo,dcdc}_set_voltage() regulator: Fix display of null constraints for regulators
2010-02-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: Fix bmap allocation corner-case bug GFS2: Fix error code
2010-02-12regulator/lp3971: vol_map out of bounds in lp3971_{ldo,dcdc}_set_voltage()Roel Kluin
After `for (val = LDO_VOL_MIN_IDX; val <= LDO_VOL_MAX_IDX; val++)', if no break occurs, val reaches LDO_VOL_MIN_IDX + 1, which is out of bounds for ldo45_voltage_map[] and ldo123_voltage_map[]. Similarly BUCK_TARGET_VOL_MAX_IDX + 1 is out of bounds for buck_voltage_map[]. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-02-12regulator: Fix display of null constraints for regulatorsMark Brown
If the regulator constraints are empty and there is no voltage reported then nothing will be added to the text displayed for the constraints, leading to random stack data being printed. This is unlikely to happen for practical regulators since most will at least report a voltage but should still be fixed. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Cc: stable@kernel.org Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
2010-02-12GFS2: Fix bmap allocation corner-case bugSteven Whitehouse
This patch solves a corner case during allocation which occurs if both metadata (indirect) and data blocks are required but there is an obstacle in the filesystem (e.g. a resource group header or another allocated block) such that when the allocation is requested only enough blocks for the metadata are returned. By changing the exit condition of this loop, we ensure that a minimum of one data block will always be returned. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-02-12GFS2: Fix error codeAbhijith Das
We need this one-liner to signal the mount helper of the 'insufficient journals' condition. Signed-off-by: Abhijith Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
2010-02-11Merge branch 'omap-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6 * 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: OMAP: hsmmc: fix memory leak
2010-02-11Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bpLinus Torvalds
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: amd64_edac: Do not falsely trigger kerneloops
2010-02-11Merge branch 'for-linus' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds
* 'for-linus' of git://git.kernel.dk/linux-2.6-block: cciss: Make cciss_seq_show handle holes in the h->drv[] array cfq-iosched: split seeky coop queues after one slice
2010-02-11Merge branch 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* 'bugfixes' of git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: Fix the mapping of the NFSERR_SERVERFAULT error NFS: Remove a redundant check for PageFsCache in nfs_migrate_page() NFS: Fix a bug in nfs_fscache_release_page()
2010-02-11Merge git://git.infradead.org/users/cbou/battery-2.6.33Linus Torvalds
* git://git.infradead.org/users/cbou/battery-2.6.33: wm97xx_battery: Handle missing platform data gracefully
2010-02-11Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6: [SCSI] qla2xxx: Obtain proper host structure during response-queue processing. [SCSI] compat_ioct: fix bsg SG_IO [SCSI] qla2xxx: make msix interrupt handler safe for irq [SCSI] zfcp: Report FC BSG errors in correct field [SCSI] mptfusion : mptscsih_abort return value should be SUCCESS instead of value 0.
2010-02-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: psmouse - make sure we don't schedule reconnects after cleanup
2010-02-11Merge branch 'drm-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6 * 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (30 commits) vgaarb: fix incorrect dereference of userspace pointer. drm/radeon/kms: retry auxch on 0x20 timeout value. drm/radeon: Skip dma copy test in benchmark if card doesn't have dma engine. drm/vmwgfx: Fix a circular locking dependency bug. drm/vmwgfx: Drop scanout flag compat and add execbuf ioctl parameter members. Bumps major. drm/vmwgfx: Report propper framebuffer_{max|min}_{width|height} drm/vmwgfx: Update the user-space interface. drm/radeon/kms: fix screen clearing before fbcon. nouveau: fix state detection with switchable graphics drm/nouveau: move dereferences after null checks drm/nv50: make the pgraph irq handler loop like the pre-nv50 version drm/nv50: delete ramfc object after disabling fifo, not before drm/nv50: avoid unloading pgraph context when ctxprog is running drm/nv50: align size of buffer object to the right boundaries. drm/nv50: disregard dac outputs in nv50_sor_dpms() drm/nv50: prevent multiple init tables being parsed at the same time drm/nouveau: make dp auxch xfer len check for reads only drm/nv40: make INIT_COMPUTE_MEM a NOP, just like nv50 drm/nouveau: Add proper vgaarb support. drm/nouveau: Fix fbcon on mixed pre-NV50 + NV50 multicard. ...
2010-02-11Merge branch 'fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx * 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: drivers/dma: Correct NULL test async-tx: fix buffer submission error handling in ipu_idma.c dmaengine: correct onstack wait_queue_head declaration ioat: fix infinite timeout checking in ioat2_quiesce dmaengine: fix memleak in dma_async_device_unregister
2010-02-11Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linusLinus Torvalds
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: MIPS: Don't probe reserved EntryHi bits. MIPS: SNI: Correct NULL test MIPS: Fix __devinit __cpuinit confusion in cpu_cache_init MIPS: IP27: Make defconfig useful again. MIPS: Fixup of the r4k timer
2010-02-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: RDMA/cm: Revert association of an RDMA device when binding to loopback