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NeilBrown fdb396bd32 md/raid10: Fix memory leak when raid10 reshape completes. 
commit b39685526f upstream.

When a raid10 commences a resync/recovery/reshape it allocates
some buffer space.
When a resync/recovery completes the buffer space is freed.  But not
when the reshape completes.
This can result in a small memory leak.

There is a subtle side-effect of this bug.  When a RAID10 is reshaped
to a larger array (more devices), the reshape is immediately followed
by a "resync" of the new space.  This "resync" will use the buffer
space which was allocated for "reshape".  This can cause problems
including a "BUG" in the SCSI layer.  So this is suitable for -stable.

Fixes: 3ea7daa5d7
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2014-09-17 09:19:24 -07:00
..
bcache Merge branch 'bcache-for-3.14' of git://evilpiepirate.org/~kent/linux-bcache into for-linus 2014-01-30 12:57:55 -07:00
persistent-data dm transaction manager: fix corruption due to non-atomic transaction commit 2014-05-13 13:32:55 +02:00
Kconfig dm: fix Kconfig indentation 2014-03-03 17:31:07 -05:00
Makefile dm sysfs: fix a module unload race 2014-01-14 23:23:04 -05:00
bitmap.c kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly 2013-12-11 15:28:36 -08:00
bitmap.h kernfs: s/sysfs_dirent/kernfs_node/ and rename its friends accordingly 2013-12-11 15:28:36 -08:00
dm-bio-prison.c
…
dm-bio-prison.h
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dm-bio-record.h dm: Refactor for new bio cloning/splitting 2013-11-23 22:33:55 -08:00
dm-bufio.c dm bufio: fully initialize shrinker 2014-08-07 14:52:37 -07:00
dm-bufio.h dm snapshot: use dm-bufio prefetch 2014-01-14 23:23:03 -05:00
dm-builtin.c dm sysfs: fix a module unload race 2014-01-14 23:23:04 -05:00
dm-cache-block-types.h
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dm-cache-metadata.c dm cache metadata: do not allow the data block size to change 2014-07-28 08:06:03 -07:00
dm-cache-metadata.h dm cache: fix a lock-inversion 2014-05-13 13:32:55 +02:00
dm-cache-policy-cleaner.c
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dm-cache-policy-internal.h dm cache: add remove_cblock method to policy interface 2013-11-11 11:37:50 -05:00
dm-cache-policy-mq.c dm cache mq: fix memory allocation failure for large cache devices 2014-02-28 12:18:29 -05:00
dm-cache-policy.c dm cache: add policy name to status output 2014-01-16 13:44:11 -05:00
dm-cache-policy.h dm cache: add policy name to status output 2014-01-16 13:44:11 -05:00
dm-cache-target.c dm cache: fix race affecting dirty block count 2014-08-07 14:52:37 -07:00
dm-crypt.c dm crypt: fix cpu hotplug crash by removing per-cpu structure 2014-06-07 10:28:25 -07:00
dm-delay.c Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block 2014-01-30 11:19:05 -08:00
dm-exception-store.c
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dm-exception-store.h
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dm-flakey.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-io.c dm io: fix a race condition in the wake up code for sync_io 2014-07-17 16:21:05 -07:00
dm-ioctl.c dm: allow remove to be deferred 2013-11-09 18:20:22 -05:00
dm-kcopyd.c dm: stop using WQ_NON_REENTRANT 2013-08-23 09:02:13 -04:00
dm-linear.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-log-userspace-base.c dm log userspace: allow mark requests to piggyback on flush requests 2014-01-21 23:46:27 -05:00
dm-log-userspace-transfer.c
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dm-log-userspace-transfer.h
…
dm-log.c
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dm-mpath.c dm mpath: fix stalls when handling invalid ioctls 2014-02-26 09:44:44 -05:00
dm-mpath.h
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dm-path-selector.c
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dm-path-selector.h
…
dm-queue-length.c
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dm-raid.c
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dm-raid1.c dm raid1: fix immutable biovec related BUG when retrying read bio 2014-02-18 10:48:57 -05:00
dm-region-hash.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-round-robin.c
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dm-service-time.c
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dm-snap-persistent.c dm snapshot: fix metadata corruption 2014-03-03 17:58:13 -05:00
dm-snap-transient.c
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dm-snap.c Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block 2014-01-30 11:19:05 -08:00
dm-stats.c dm stats: initialize read-only module parameter 2013-12-10 19:13:21 -05:00
dm-stats.h dm: add statistics support 2013-09-05 20:46:06 -04:00
dm-stripe.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-switch.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
dm-sysfs.c dm sysfs: fix a module unload race 2014-01-14 23:23:04 -05:00
dm-table.c dm table: remove unused buggy code that extends the targets array 2014-01-07 10:11:44 -05:00
dm-target.c dm: allow error target to replace bio-based and request-based targets 2013-09-05 20:46:05 -04:00
dm-thin-metadata.c dm thin metadata: do not allow the data block size to change 2014-07-28 08:06:03 -07:00
dm-thin-metadata.h dm thin: ensure user takes action to validate data and metadata consistency 2014-03-05 15:25:35 -05:00
dm-thin.c dm thin: update discard_granularity to reflect the thin-pool blocksize 2014-07-09 11:18:26 -07:00
dm-uevent.c
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dm-uevent.h
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dm-verity.c dm verity: fix biovecs hash calculation regression 2014-06-07 10:28:12 -07:00
dm-zero.c
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dm.c dm: allocate a special workqueue for deferred device removal 2014-07-17 16:21:05 -07:00
dm.h dm sysfs: fix a module unload race 2014-01-14 23:23:04 -05:00
faulty.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
linear.c block: Introduce new bio_split() 2013-11-23 22:33:57 -08:00
linear.h
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md.c md: flush writes before starting a recovery. 2014-07-09 11:18:28 -07:00
md.h Driver core / sysfs patches for 3.14-rc1 2014-01-20 15:49:44 -08:00
multipath.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
multipath.h
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raid0.c block: Introduce new bio_split() 2013-11-23 22:33:57 -08:00
raid0.h
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raid1.c md/raid1,raid10: always abort recover on write error. 2014-09-17 09:19:23 -07:00
raid1.h raid1: Rewrite the implementation of iobarrier. 2013-11-19 15:19:18 +11:00
raid5.c md/raid6: avoid data corruption during recovery of double-degraded RAID6 2014-09-17 09:19:23 -07:00
raid5.h md update for 3.13. 2013-11-20 13:05:25 -08:00
raid10.c md/raid10: Fix memory leak when raid10 reshape completes. 2014-09-17 09:19:24 -07:00
raid10.h
…