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

bitmap.c

md/bitmap: always wait for writes on unplug.

2014-10-09 10:07:04 +11:00

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: 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

dm: Refactor for new bio cloning/splitting

2013-11-23 22:33:55 -08:00

dm-bufio.c

Merge tag 'dm-3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2014-12-08 21:10:03 -08:00

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

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

…

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 policy mq: simplify ability to promote sequential IO to the cache

2014-11-10 15:25:30 -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 problematic dual use of a single migration count variable

2015-01-23 11:06:08 -05:00

dm-crypt.c

Merge tag 'dm-3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2014-12-08 21:10:03 -08:00

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-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

…

dm-exception-store.h

…

dm-flakey.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

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

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

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

…

dm-log.c

…

dm-mpath.c

dm mpath: stop queueing IO when no valid paths exist

2014-10-05 20:03:35 -04:00

dm-mpath.h

…

dm-path-selector.c

…

dm-path-selector.h

…

dm-queue-length.c

…

dm-raid1.c

dm raid1: fix immutable biovec related BUG when retrying read bio

2014-02-18 10:48:57 -05:00

dm-raid.c

dm raid: fix inaccessible superblocks causing oops in configure_discard_support

2014-10-29 14:53:27 -04:00

dm-region-hash.c

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

dm-round-robin.c

…

dm-service-time.c

…

dm-snap-persistent.c

dm snapshot: fix metadata corruption

2014-03-03 17:58:13 -05:00

dm-snap-transient.c

…

dm-snap.c

sched: Remove proliferation of wait_on_bit() action functions

2014-07-16 15:10:39 +02:00

dm-stats.c

Merge tag 'dm-3.19-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

2014-12-08 21:10:03 -08:00

dm-stats.h

dm: add statistics support

2013-09-05 20:46:06 -04:00

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

dm sysfs: fix a module unload race

2014-01-14 23:23:04 -05:00

dm-table.c

dm: add presuspend_undo hook to target_type

2014-11-19 11:24:59 -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: 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

…

dm-uevent.h

…

dm-verity.c

dm verity: fix biovecs hash calculation regression

2014-04-15 12:19:24 -04:00

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

block: Abstract out bvec iterator

2013-11-23 22:33:47 -08:00

Kconfig

dm: add era target

2014-03-27 16:56:23 -04:00

linear.c

md: remove unwanted white space from md.c

2014-10-14 13:08:29 +11:00

linear.h

…

Makefile

dm: add era target

2014-03-27 16:56:23 -04:00

md.c

Merge tag 'md/3.19' of git://neil.brown.name/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

…

raid0.c

md: remove unwanted white space from md.c

2014-10-14 13:08:29 +11:00

raid0.h

…

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

…