Takahiro Yasui f070304094 dm raid1: fix deadlock when suspending failed device ... To prevent deadlock, bios in the hold list should be flushed before dm_rh_stop_recovery() is called in mirror_suspend(). The recovery can't start because there are pending bios and therefore dm_rh_stop_recovery deadlocks. When there are pending bios in the hold list, the recovery waits for the completion of the bios after recovery_count is acquired. The recovery_count is released when the recovery finished, however, the bios in the hold list are processed after dm_rh_stop_recovery() in mirror_presuspend(). dm_rh_stop_recovery() also acquires recovery_count, then deadlock occurs. Signed-off-by: Takahiro Yasui <tyasui@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Reviewed-by: Mikulas Patocka <mpatocka@redhat.com>		2010-03-06 02:32:35 +00:00
..
raid6test	md: drivers/md/unroll.pl replaced with awk analog	2009-10-16 16:25:19 +11:00
.gitignore
bitmap.c	md/bitmap: update dirty flag when bitmap bits are explicitly set.	2009-12-14 12:51:41 +11:00
bitmap.h	md: Support write-intent bitmaps with externally managed metadata.	2009-12-14 12:51:41 +11:00
dm-bio-record.h
dm-crypt.c	dm table: remove unused dm_get_device range parameters	2010-03-06 02:32:27 +00:00
dm-delay.c	dm table: remove unused dm_get_device range parameters	2010-03-06 02:32:27 +00:00
dm-exception-store.c	dm snapshot: move cow ref from exception store to snap core	2009-12-10 23:52:12 +00:00
dm-exception-store.h	dm snapshot: add merging	2009-12-10 23:52:32 +00:00
dm-io.c	dm io: handle empty barriers	2009-12-10 23:52:22 +00:00
dm-ioctl.c	dm ioctl: introduce flag indicating uevent was generated	2010-03-06 02:32:31 +00:00
dm-kcopyd.c	dm kcopyd: accept zero size jobs	2009-12-10 23:52:13 +00:00
dm-linear.c	dm table: remove unused dm_get_device range parameters	2010-03-06 02:32:27 +00:00
dm-log-userspace-base.c	dm log: userspace fix incorrect luid cast in userspace_ctr	2009-10-16 23:18:15 +01:00
dm-log-userspace-transfer.c	dm log: userspace fix overhead_size calcuations	2010-02-16 18:42:53 +00:00
dm-log-userspace-transfer.h	dm log: userspace add luid to distinguish between concurrent log instances	2009-09-04 20:40:34 +01:00
dm-log.c	dm table: remove unused dm_get_device range parameters	2010-03-06 02:32:27 +00:00
dm-mpath.c	dm table: remove unused dm_get_device range parameters	2010-03-06 02:32:27 +00:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c	dm raid1: fix deadlock when suspending failed device	2010-03-06 02:32:35 +00:00
dm-region-hash.c	dm raid1: fix null pointer dereference in suspend	2010-02-16 18:42:58 +00:00
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: persistent annotate work_queue as on stack	2010-02-16 18:42:51 +00:00
dm-snap-transient.c	dm snapshot: move cow ref from exception store to snap core	2009-12-10 23:52:12 +00:00
dm-snap.c	dm: eliminate some holes data structures	2010-03-06 02:32:33 +00:00
dm-stripe.c	dm table: remove unused dm_get_device range parameters	2010-03-06 02:32:27 +00:00
dm-sysfs.c	dm: sysfs revert add empty release function to avoid debug warning	2010-02-16 18:43:04 +00:00
dm-table.c	dm table: remove unused dm_get_device range parameters	2010-03-06 02:32:27 +00:00
dm-target.c
dm-uevent.c	dm table: remove dm_get from dm_table_get_md	2010-03-06 02:29:52 +00:00
dm-uevent.h
dm-zero.c
dm.c	dm ioctl: introduce flag indicating uevent was generated	2010-03-06 02:32:31 +00:00
dm.h	dm ioctl: introduce flag indicating uevent was generated	2010-03-06 02:32:31 +00:00
faulty.c	md: add MODULE_DESCRIPTION for all md related modules.	2009-12-14 12:51:41 +11:00
Kconfig	md: revise Kconfig help for MD_MULTIPATH	2009-12-14 12:51:41 +11:00
linear.c	block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors	2010-02-26 13:58:08 +01:00
linear.h
Makefile	md: drivers/md/unroll.pl replaced with awk analog	2009-10-16 16:25:19 +11:00
md.c	md: fix some lockdep issues between md and sysfs.	2010-02-10 11:26:09 +11:00
md.h	raid: improve MD/raid10 handling of correctable read errors.	2009-12-14 12:51:41 +11:00
mktables.c
multipath.c	block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors	2010-02-26 13:58:08 +01:00
multipath.h
raid0.c	block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors	2010-02-26 13:58:08 +01:00
raid0.h
raid1.c	block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors	2010-02-26 13:58:08 +01:00
raid1.h	md/raid1: add takeover support for raid5->raid1	2009-12-14 12:51:41 +11:00
raid5.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu	2010-03-03 07:34:18 -08:00
raid5.h	percpu: add __percpu sparse annotations to what's left	2010-02-17 11:17:38 +09:00
raid6algos.c	md: add MODULE_DESCRIPTION for all md related modules.	2009-12-14 12:51:41 +11:00
raid6altivec.uc	md: drivers/md/unroll.pl replaced with awk analog	2009-10-16 16:25:19 +11:00
raid6int.uc	md: drivers/md/unroll.pl replaced with awk analog	2009-10-16 16:25:19 +11:00
raid6mmx.c
raid6recov.c
raid6sse1.c
raid6sse2.c
raid6x86.h
raid10.c	block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors	2010-02-26 13:58:08 +01:00
raid10.h
unroll.awk	md: drivers/md/unroll.pl replaced with awk analog	2009-10-16 16:25:19 +11:00