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2011-08-02dm raid: tidy includesAlasdair G Kergon
A dm target only needs to use include/linux dm headers. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm ioctl: prevent empty messageAlasdair G Kergon
Detect invalid empty messages in core dm instead of requiring every target to check this. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm raid: cleanup parameter handlingJonathan Brassow
Re-order the parameters so they are handled consistently in the same order where defined, parsed and output. Only include rebuild parameters in the STATUSTYPE_TABLE output if they were supplied in the original table line. Correct the parameter count when outputting rebuild: there are two words, not one. Use case-independent checks for keywords (as in other device-mapper targets). Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm snapshot: style cleanupsJonathan Brassow
Coding style cleanups. Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
2011-08-02dm snapshot: remove unused definitionsMikulas Patocka
Remove a couple of unused #defines. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm kcopyd: remove nr_pages field from job structureMikulas Patocka
The nr_pages field in struct kcopyd_job is only used temporarily in run_pages_job() to count the number of required pages. We can use a local variable instead. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm kcopyd: remove offset field from job structureMikulas Patocka
The offset field in struct kcopyd_job is always zero so remove it. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm: use vzallocJoe Perches
Use vzalloc() instead of vmalloc()+memset(). Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm log: userspace use list_moveKirill A. Shutemov
Replace list_del() followed by list_add() with list_move(). Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm log: clean up bit little endian bitopsAkinobu Mita
Using __test_and_{set,clear}_bit_le() with ignoring its return value can be replaced with __{set,clear}_bit_le(). This also removes unnecessary casts. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm table: fix discard supportMike Snitzer
Remove 'discards_supported' from the dm_table structure. The same information can be easily discovered from the table's target(s) in dm_table_supports_discards(). Before this fix dm_table_supports_discards() would skip checking the individual targets' 'discards_supported' flag if any one target in the table didn't set num_discard_requests > 0. Now the per-target 'discards_supported' flag is effective at insuring the final DM device advertises discard support. But, to be clear, targets that don't support discards (!num_discard_requests) will not receive discard requests. Also DMWARN if a target sets 'discards_supported' override but forgets to set 'num_discard_requests'. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm: suppress endian warningsAlasdair G Kergon
Suppress sparse warnings about cpu_to_le32() by using __le32 types for on-disk data etc. Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm: fix idr leak on module removalAlasdair G Kergon
Destroy _minor_idr when unloading the core dm module. (Found by kmemleak.) Cc: stable@kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm io: flush cpu cache with vmapped ioMikulas Patocka
For normal kernel pages, CPU cache is synchronized by the dma layer. However, this is not done for pages allocated with vmalloc. If we do I/O to/from vmallocated pages, we must synchronize CPU cache explicitly. Prior to doing I/O on vmallocated page we must call flush_kernel_vmap_range to flush dirty cache on the virtual address. After finished read we must call invalidate_kernel_vmap_range to invalidate cache on the virtual address, so that accesses to the virtual address return newly read data and not stale data from CPU cache. This patch fixes metadata corruption on dm-snapshots on PA-RISC and possibly other architectures with caches indexed by virtual address. Cc: stable <stable@kernel.org> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02dm mpath: fix potential NULL pointer in feature arg processingMike Snitzer
Avoid dereferencing a NULL pointer if the number of feature arguments supplied is fewer than indicated. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Cc: stable@kernel.org
2011-08-02dm snapshot: flush disk cache when mergingMikulas Patocka
This patch makes dm-snapshot flush disk cache when writing metadata for merging snapshot. Without cache flushing the disk may reorder metadata write and other data writes and there is a possibility of data corruption in case of power fault. Cc: stable@kernel.org Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2011-08-02bnx2x: Prevent restarting Tx during bnx2x_nic_unloadVladislav Zolotarov
Tx queues were stopped before bp->state was changed to a value different from BNX2X_STATE_OPEN, which allowed the bnx2x_tx_int() called from the NAPI context to re-enable it. This then allowed the netdev->ndo_start_xmit() to be called in the middle of the function reset and rings freeing. This patch changes bp->state to a value different from BNX2X_STATE_OPEN BEFORE disabling the Tx queues in order to restore the broken protection against the above race in the bnx2x_tx_int(). Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-02watchdog: Cleanup WATCHDOG_CORE help textJosh Boyer
The newly added WATCHDOG_CORE option is a bool, but the help text suggests it can be built as a module. Fix it up. Signed-off-by: Josh Boyer <jwboyer@redhat.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-08-02watchdog: Fix POST failure on ASUS P5N32-E SLI and similar boardsMart Gerrits
At present the module does not unset the NO_REBOOT bit upon shutdown, this causes the BIOS to fail the POST once and reset. During the next boot it displays the following error message: ***** Warning: System BOOT Fail ***** Your system last boot fail or POST interrupted. Please enter setup to load default and reboot again. Press F1 to continue, DEL to enter SETUP With this patch the NO_REBOOT flag will be unset on shutdown and thus stop this failure from occurring. Tested on 'ASUS P5N32-E SLI with BIOS revision 1801' and 'ASUS P5N32-E SLI PLUS with BIOS revision 1502'. Signed-off-by: Mart Gerrits <mart1987@gmail.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2011-08-02watchdog: shwdt: fix usage of mod_timerDavid Engraf
Fix the usage of mod_timer() and make the driver usable. mod_timer() must be called with an absolute timeout in jiffies. The old implementation used a relative timeout thus the hardware watchdog was never triggered. Signed-off-by: David Engraf <david.engraf@sysgo.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Wim Van sebroeck <wim@iguana.be> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: stable <stable@kernel.org>
2011-08-02Merge branch 'fix/asoc' into for-linusTakashi Iwai
2011-08-02ALSA: asihpi - Clarify adapter index validity checkEliot Blennerhassett
Avoids assigning possibly invalid address to pa, even if it is never dereferenced. Correct error response to reflect request object/function ids. Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2011-08-02ACPI print OSI(Linux) warning only onceLen Brown
This message gets repeated on some machines: https://bugzilla.kernel.org/show_bug.cgi?id=29292 Signed-off-by: Len Brown <len.brown@intel.com>
2011-08-01fix block device fallout from ->fsync() changesRafael J. Wysocki
blkdev_fsync() needs to write pages in pagecache... Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-08-01oom: task->mm == NULL doesn't mean the memory was freedOleg Nesterov
exit_mm() sets ->mm == NULL then it does mmput()->exit_mmap() which frees the memory. However select_bad_process() checks ->mm != NULL before TIF_MEMDIE, so it continues to kill other tasks even if we have the oom-killed task freeing its memory. Change select_bad_process() to check ->mm after TIF_MEMDIE, but skip the tasks which have already passed exit_notify() to ensure a zombie with TIF_MEMDIE set can't block oom-killer. Alternatively we could probably clear TIF_MEMDIE after exit_mmap(). Signed-off-by: Oleg Nesterov <oleg@redhat.com> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-08-01net: add kerneldoc to skb_copy_bits()Eric Dumazet
Since skb_copy_bits() is called from assembly, add a fat comment to make clear we should think twice before changing its prototype. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01Documentation/bonding.txt: Update to 3.x version numbersJesper Juhl
Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01doc: Update the email address for Paul Moore in various source filesPaul Moore
My @hp.com will no longer be valid starting August 5, 2011 so an update is necessary. My new email address is employer independent so we don't have to worry about doing this again any time soon. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Paul Moore <paul@paul-moore.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01doc: Update the MAINTAINERS info for Paul MoorePaul Moore
My @hp.com will no longer be valid starting August 5, 2011 so an update is necessary. My new email address is employer independent so we don't have to worry about doing this again any time soon. Signed-off-by: Paul Moore <paul.moore@hp.com> Signed-off-by: Paul Moore <paul@paul-moore.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01atm: br2864: sent packets truncated in VC routed modeChas Williams
Reported-by: Pascal Hambourg <pascal@plouf.fr.eu.org> Signed-off-by: Chas Williams <chas@cmf.nrl.navy.mil> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-01Merge 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: (23 commits) regulator: Improve WM831x DVS VSEL selection algorithm regulator: Bootstrap wm831x DVS VSEL value from ON VSEL if not already set regulator: Set up GPIO for WM831x VSEL before enabling VSEL mode regulator: Add EPEs to the MODULE_ALIAS() for wm831x-dcdc regulator: Fix WM831x DCDC DVS VSEL bootstrapping regulator: Fix WM831x regulator ID lookups for multiple WM831xs regulator: Fix argument format type errors in error prints regulator: Fix memory leak in set_machine_constraints() error paths regulator: Make core more chatty about some errors regulator: tps65910: Fix array access out of bounds bug regulator: tps65910: Add missing breaks in switch/case regulator: tps65910: Fix a memory leak in tps65910_probe error path regulator: TWL: Remove entry of RES_ID for 6030 macros ASoC: tlv320aic3x: Add correct hw registers to Line1 cross connect muxes regulator: Add basic per consumer debugfs regulator: Add rdev_crit() macro regulator: Refactor supply implementation to work as regular consumers regulator: Include the device name in the microamps_requested_ file regulator: Increase the limit on sysfs file names regulator: Properly register dummy regulator driver ...
2011-08-01Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (60 commits) ext4: prevent memory leaks from ext4_mb_init_backend() on error path ext4: use EXT4_BAD_INO for buddy cache to avoid colliding with valid inode # ext4: use ext4_msg() instead of printk in mballoc ext4: use ext4_kvzalloc()/ext4_kvmalloc() for s_group_desc and s_group_info ext4: introduce ext4_kvmalloc(), ext4_kzalloc(), and ext4_kvfree() ext4: use the correct error exit path in ext4_init_inode_table() ext4: add missing kfree() on error return path in add_new_gdb() ext4: change umode_t in tracepoint headers to be an explicit __u16 ext4: fix races in ext4_sync_parent() ext4: Fix overflow caused by missing cast in ext4_fallocate() ext4: add action of moving index in ext4_ext_rm_idx for Punch Hole ext4: simplify parameters of reserve_backup_gdb() ext4: simplify parameters of add_new_gdb() ext4: remove lock_buffer in bclean() and setup_new_group_blocks() ext4: simplify journal handling in setup_new_group_blocks() ext4: let setup_new_group_blocks() set multiple bits at a time ext4: fix a typo in ext4_group_extend() ext4: let ext4_group_add_blocks() handle 0 blocks quickly ext4: let ext4_group_add_blocks() return an error code ext4: rename ext4_add_groupblocks() to ext4_group_add_blocks() ... Fix up conflict in fs/ext4/inode.c: commit aacfc19c626e ("fs: simplify the blockdev_direct_IO prototype") had changed the ext4_ind_direct_IO() function for the new simplified calling convention, while commit dae1e52cb126 ("ext4: move ext4_ind_* functions from inode.c to indirect.c") moved the function to another file.
2011-08-01Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: xfs: Fix build breakage in xfs_iops.c when CONFIG_FS_POSIX_ACL is not set VFS: Reorganise shrink_dcache_for_umount_subtree() after demise of dcache_lock VFS: Remove dentry->d_lock locking from shrink_dcache_for_umount_subtree() VFS: Remove detached-dentry counter from shrink_dcache_for_umount_subtree() switch posix_acl_chmod() to umode_t switch posix_acl_from_mode() to umode_t switch posix_acl_equiv_mode() to umode_t * switch posix_acl_create() to umode_t * block: initialise bd_super in bdget() vfs: avoid call to inode_lru_list_del() if possible vfs: avoid taking inode_hash_lock on pipes and sockets vfs: conditionally call inode_wb_list_del() VFS: Fix automount for negative autofs dentries Btrfs: load the key from the dir item in readdir into a fake dentry devtmpfs: missing initialialization in never-hit case hppfs: missing include
2011-08-01Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (37 commits) Improve slave/cyclic DMA engine documentation dmaengine: pl08x: handle the rest of enums in pl08x_width DMA: PL08x: cleanup selection of burst size DMA: PL08x: avoid recalculating cctl at each prepare DMA: PL08x: cleanup selection of buswidth DMA: PL08x: constify plchan->cd and plat->slave_channels DMA: PL08x: separately store source/destination cctl DMA: PL08x: separately store source/destination slave address DMA: PL08x: clean up LLI debugging DMA: PL08x: select LLI bus only once per LLI setup DMA: PL08x: remove unused constants ARM: mxs-dma: reset after disable channel dma: intel_mid_dma: remove redundant pci_set_drvdata calls dma: mxs-dma: fix unterminated platform_device_id table dmaengine: pl330: make platform data optional dmaengine: imx-sdma: return proper error if kzalloc fails pch_dma: Fix CTL register access issue dmaengine: mxs-dma: skip request_irq for NO_IRQ dmaengine/coh901318: fix slave submission semantics dmaengine/ste_dma40: allow memory buswidth/burst to be configured ... Fix trivial whitespace conflict in drivers/dma/mv_xor.c
2011-08-01Merge branch 'gpiolib' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'gpiolib' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Hook up gpiolib support
2011-08-01Merge branch 'pstore-efi' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'pstore-efi' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: efivars: Introduce PSTORE_EFI_ATTRIBUTES efivars: Use string functions in pstore_write efivars: introduce utf16_strncmp efivars: String functions efi: Add support for using efivars as a pstore backend pstore: Allow the user to explicitly choose a backend pstore: Make "part" unsigned pstore: Add extra context for writes and erases pstore: Extend API for more flexibility in new backends
2011-08-01Merge branch 'for_linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jwessel/linux-2.6-kgdb: kdb,kgdb: Allow arbitrary kgdb magic knock sequences kdb: Remove all references to DOING_KGDB2 kdb,kgdb: Implement switch and pass buffer from kdb -> gdb kdb: cleanup unused variables missed in the original kdb merge
2011-08-01drm/i915/dp: wait for previous AUX channel activity to clearJesse Barnes
Before initiating a new read or write on the DP AUX channel, wait for any outstanding activity to complete. This may happen during normal retry behavior. If the wait fails (i.e. after 1ms the AUX channel is still busy) dump a backtrace to make the caller easier to spot. v2: use msleep instead, and timeout after 3ms (only ever saw 1 retry with msleep in testing) v3: fix backtrace check to trigger if the 3ms wait times out Fixes https://bugs.freedesktop.org/show_bug.cgi?id=38136. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Reviewed-by: Keith Packard <keithp@keithp.com> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-01drm/i915: don't use uninitialized EDID bpc values when picking pipe bppJesse Barnes
The EDID parser will zero out the bpc value, and the driver needs to handle that case. In our picker, we'll just ignore 0 values as far as bpp picking goes. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=39323. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Keith Packard <keithp@keithp.com>
2011-08-01ext4: prevent memory leaks from ext4_mb_init_backend() on error pathYu Jian
In ext4_mb_init(), if the s_locality_group allocation fails it will currently cause the allocations made in ext4_mb_init_backend() to be leaked. Moving the ext4_mb_init_backend() allocation after the s_locality_group allocation avoids that problem. Signed-off-by: Yu Jian <yujian@whamcloud.com> Signed-off-by: Andreas Dilger <adilger@whamcloud.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-08-01ext4: use EXT4_BAD_INO for buddy cache to avoid colliding with valid inode #Yu Jian
Signed-off-by: Yu Jian <yujian@whamcloud.com> Signed-off-by: Andreas Dilger <adilger@whamcloud.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-08-01ext4: use ext4_msg() instead of printk in mballocTheodore Ts'o
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2011-08-01Btrfs: don't call writepages from within write_full_pageJosef Bacik
When doing a writepage we call writepages to try and write out any other dirty pages in the area. This could cause problems where we commit a transaction and then have somebody else dirtying metadata in the area as we could end up writing out a lot more than we care about, which could cause latency on anybody who is waiting for the transaction to completely finish committing. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-01Btrfs: Remove unused variable 'last_index' in file.cMitch Harder
The variable 'last_index' is calculated in the __btrfs_buffered_write function and passed as a parameter to the prepare_pages function, but is not used anywhere in the prepare_pages function. Remove instances of 'last_index' in these functions. Signed-off-by: Mitch Harder <mitch.harder@sabayonlinux.org> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-01Btrfs: clean up for find_first_extent_bit()Xiao Guangrong
find_first_extent_bit() and find_first_extent_bit_state() share most of the code, and we can just make the former call the latter. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-01Btrfs: clean up for wait_extent_bit()Xiao Guangrong
We can just use cond_resched_lock(). Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-01Btrfs: clean up for insert_state()Xiao Guangrong
Don't duplicate set_state_bits(). Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-01Btrfs: remove unused members from struct extent_stateXiao Guangrong
These members are not used at all. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-01Btrfs: clean up code for merging extent mapsLi Zefan
unpin_extent_cache() and add_extent_mapping() shares the same code that merges extent maps. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
2011-08-01Btrfs: clean up code for extent_map lookupLi Zefan
lookup_extent_map() and search_extent_map() can share most of code. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
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