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linux/drivers/md
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Mikulas Patocka 96b26c8c64 dm: fix handling of multiple internal suspends 
Commit ffcc393641 ("dm: enhance internal suspend and resume interface")
attempted to handle multiple internal suspends on the same device, but
it did that incorrectly.  When these functions are called in this order
on the same device the device is no longer suspended, but it should be:
	dm_internal_suspend_noflush
	dm_internal_suspend_noflush
	dm_internal_resume

Fix this bug by maintaining an 'internal_suspend_count' and resuming
the device when this count drops to zero.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
 		2015-01-24 14:50:08 -05:00
..
bcache md/bcache: use generic io stats accounting functions to simplify io stat accounting 2014-11-24 08:05:12 -07:00
persistent-data dm space map metadata: fix sm_bootstrap_get_count() 2014-12-02 10:25:06 -05:00
Kconfig
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Makefile
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bitmap.c md/bitmap: always wait for writes on unplug. 2014-10-09 10:07:04 +11:00
bitmap.h
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dm-bio-prison.c dm bio prison: introduce support for locking ranges of blocks 2014-11-10 15:25:30 -05:00
dm-bio-prison.h dm bio prison: introduce support for locking ranges of blocks 2014-11-10 15:25:30 -05:00
dm-bio-record.h
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dm-bufio.c - Significant DM thin-provisioning performance improvements to meet 2014-12-08 21:10:03 -08:00
dm-bufio.h
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dm-builtin.c
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dm-cache-block-types.h dm cache: revert "remove remainder of distinct discard block size" 2014-11-10 15:25:30 -05:00
dm-cache-metadata.c dm cache: share cache-metadata object across inactive and active DM tables 2015-01-23 10:57:15 -05:00
dm-cache-metadata.h dm cache: revert "remove remainder of distinct discard block size" 2014-11-10 15:25:30 -05:00
dm-cache-policy-cleaner.c
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dm-cache-policy-internal.h
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dm-cache-policy-mq.c dm cache policy mq: simplify ability to promote sequential IO to the cache 2014-11-10 15:25:30 -05:00
dm-cache-policy.c
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dm-cache-policy.h
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dm-cache-target.c dm cache: fix problematic dual use of a single migration count variable 2015-01-23 11:06:08 -05:00
dm-crypt.c - Significant DM thin-provisioning performance improvements to meet 2014-12-08 21:10:03 -08:00
dm-delay.c
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dm-era-target.c dm era: check for a non-NULL metadata object before closing it 2014-06-03 13:44:08 -04:00
dm-exception-store.c
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dm-exception-store.h
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dm-flakey.c
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dm-io.c dm io: simplify dec_count and sync_io 2014-08-01 12:30:30 -04:00
dm-ioctl.c dm: enhance internal suspend and resume interface 2014-11-19 12:31:17 -05:00
dm-kcopyd.c
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dm-linear.c
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dm-log-userspace-base.c
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dm-log-userspace-transfer.c dm log userspace: fix memory leak in dm_ulog_tfr_init failure path 2014-10-05 20:03:38 -04:00
dm-log-userspace-transfer.h
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dm-log.c
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dm-mpath.c dm mpath: stop queueing IO when no valid paths exist 2014-10-05 20:03:35 -04:00
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-raid.c dm raid: fix inaccessible superblocks causing oops in configure_discard_support 2014-10-29 14:53:27 -04:00
dm-raid1.c
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dm-region-hash.c
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dm-round-robin.c
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dm-service-time.c
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dm-snap-persistent.c
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dm-snap-transient.c
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dm-snap.c sched: Remove proliferation of wait_on_bit() action functions 2014-07-16 15:10:39 +02:00
dm-stats.c - Significant DM thin-provisioning performance improvements to meet 2014-12-08 21:10:03 -08:00
dm-stats.h
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dm-stripe.c dm stripe: fix potential for leak in stripe_ctr error path 2014-10-10 22:05:18 -04:00
dm-switch.c dm switch: efficiently support repetitive patterns 2014-08-01 12:30:37 -04:00
dm-sysfs.c
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dm-table.c dm: add presuspend_undo hook to target_type 2014-11-19 11:24:59 -05:00
dm-target.c
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dm-thin-metadata.c dm thin: prefetch missing metadata pages 2014-11-10 15:25:27 -05:00
dm-thin-metadata.h dm thin: prefetch missing metadata pages 2014-11-10 15:25:27 -05:00
dm-thin.c dm thin: fix crash by initializing thin device's refcount and completion earlier 2014-12-17 12:06:25 -05:00
dm-uevent.c
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dm-uevent.h
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dm-verity.c
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dm-zero.c dm crypt, dm zero: update author name following legal name change 2014-07-10 16:44:14 -04:00
dm.c dm: fix handling of multiple internal suspends 2015-01-24 14:50:08 -05:00
dm.h dm: enhance internal suspend and resume interface 2014-11-19 12:31:17 -05:00
faulty.c
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linear.c md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
linear.h
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md.c Three fixes for md 2014-12-14 12:13:05 -08:00
md.h md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
multipath.c md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
multipath.h
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raid0.c md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
raid0.h
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raid1.c md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
raid1.h md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
raid5.c md/raid5: fetch_block must fetch all the blocks handle_stripe_dirtying wants. 2014-12-03 16:07:58 +11:00
raid5.h md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
raid10.c md: remove unwanted white space from md.c 2014-10-14 13:08:29 +11:00
raid10.h
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