Mikulas Patocka 73dfd078cf dm snapshot: trigger exceptions in remaining snapshots during merge ...

When there is one merging snapshot and other non-merging snapshots,
snapshot_merge_process() must make exceptions in the non-merging
snapshots.

Use a sequence count to resolve the race between I/O to chunks that are
about to be merged.  The count increases each time an exception
reallocation finishes.  Use wait_event() to wait until the count
changes.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

2009-12-10 23:52:34 +00:00

..

raid6test

md: drivers/md/unroll.pl replaced with awk analog

2009-10-16 16:25:19 +11:00

.gitignore

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bitmap.c

md: remove clumsy usage of do_sync_mapping_range from bitmap code

2009-10-16 15:56:01 +11:00

bitmap.h

…

dm-bio-record.h

…

dm-crypt.c

dm crypt: add plain64 iv

2009-12-10 23:52:25 +00:00

dm-delay.c

dm table: pass correct dev area size to device_area_is_valid

2009-07-23 20:30:42 +01:00

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: rename dm_suspended to dm_suspended_md

2009-12-10 23:52:26 +00:00

dm-kcopyd.c

dm kcopyd: accept zero size jobs

2009-12-10 23:52:13 +00:00

dm-linear.c

dm table: pass correct dev area size to device_area_is_valid

2009-07-23 20:30:42 +01:00

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/connector: Only process connector packages from privileged processes

2009-10-02 10:54:10 -07:00

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 raid1: report flush errors separately in status

2009-12-10 23:52:02 +00:00

dm-mpath.c

dm mpath: reject messages when device is suspended

2009-12-10 23:52:27 +00:00

dm-mpath.h

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dm-path-selector.c

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dm-path-selector.h

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dm-queue-length.c

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dm-raid1.c

dm raid1: explicitly initialise bio_lists

2009-12-10 23:52:06 +00:00

dm-region-hash.c

dm raid1: remove bio_endio from dm_rh_mark_nosync

2009-12-10 23:52:05 +00:00

dm-round-robin.c

…

dm-service-time.c

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dm-snap-persistent.c

dm exception store: add merge specific methods

2009-12-10 23:52:29 +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 snapshot: trigger exceptions in remaining snapshots during merge

2009-12-10 23:52:34 +00:00

dm-stripe.c

block: Optimal I/O limit wrapper

2009-09-14 08:24:52 +02:00

dm-sysfs.c

dm: rename dm_suspended to dm_suspended_md

2009-12-10 23:52:26 +00:00

dm-table.c

dm: bind new table before destroying old

2009-12-10 23:52:23 +00:00

dm-target.c

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dm-uevent.c

dm: avoid _hash_lock deadlock

2009-12-10 23:51:52 +00:00

dm-uevent.h

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dm-zero.c

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dm.c

dm: export suspended state to targets

2009-12-10 23:52:27 +00:00

dm.h

dm: rename dm_suspended to dm_suspended_md

2009-12-10 23:52:26 +00:00

faulty.c

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Kconfig

Merge branch 'dmaengine' into async-tx-next

2009-09-08 17:55:21 -07:00

linear.c

md: report device as congested when suspended

2009-09-23 18:10:29 +10:00

linear.h

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Makefile

md: drivers/md/unroll.pl replaced with awk analog

2009-10-16 16:25:19 +11:00

md.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6

2009-12-08 07:38:50 -08:00

md.h

md: report device as congested when suspended

2009-09-23 18:10:29 +10:00

mktables.c

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multipath.c

md: remove unnecessary memset from multipath.

2009-09-23 18:16:31 +10:00

multipath.h

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raid0.c

md: report device as congested when suspended

2009-09-23 18:10:29 +10:00

raid0.h

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raid1.c

md: revert incorrect fix for read error handling in raid1.

2009-12-01 17:30:59 +11:00

raid1.h

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raid5.c

md/raid5: Allow dirty-degraded arrays to be assembled when only party is degraded.

2009-11-13 17:47:00 +11:00

raid5.h

md: fix problems with RAID6 calculations for DDF.

2009-10-16 16:27:34 +11:00

raid6algos.c

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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

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raid6recov.c

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raid6sse1.c

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raid6sse2.c

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raid6x86.h

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raid10.c

md: raid1/raid10: handle allocation errors during array setup.

2009-10-16 15:55:44 +11:00

raid10.h

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unroll.awk

md: drivers/md/unroll.pl replaced with awk analog

2009-10-16 16:25:19 +11:00