Joe Thornber 9b1cc9f251 dm cache: share cache-metadata object across inactive and active DM tables ... If a DM table is reloaded with an inactive table when the device is not suspended (normal procedure for LVM2), then there will be two dm-bufio objects that can diverge. This can lead to a situation where the inactive table uses bufio to read metadata at the same time the active table writes metadata -- resulting in the inactive table having stale metadata buffers once it is promoted to the active table slot. Fix this by using reference counting and a global list of cache metadata objects to ensure there is only one metadata object per metadata device. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org		2015-01-23 10:57:15 -05:00
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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
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-bufio.c	- Significant DM thin-provisioning performance improvements to meet	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-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 spurious cell_defer when dealing with partial block at end of device	2014-12-01 11:30:13 -05:00
dm-crypt.c	- Significant DM thin-provisioning performance improvements to meet	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
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-linear.c
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
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	- Significant DM thin-provisioning performance improvements to meet	2014-12-08 21:10:03 -08:00
dm-stats.h
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-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 missed error code if .end_io isn't implemented by target_type	2014-12-17 12:31:13 -05:00
dm.h	dm: enhance internal suspend and resume interface	2014-11-19 12:31:17 -05:00
faulty.c
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	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
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