Bart Van Assche 7083abbbfc dm mpath: avoid that path removal can trigger an infinite loop ... If blk_get_request() fails, check whether the failure is due to a path being removed. If that is the case, fail the path by triggering a call to fail_path(). This avoids that the following scenario can be encountered while removing paths: * CPU usage of a kworker thread jumps to 100%. * Removing the DM device becomes impossible. Delay requeueing if blk_get_request() returns -EBUSY or -EWOULDBLOCK, and the queue is not dying, because in these cases immediate requeuing is inappropriate. Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com> Cc: Hannes Reinecke <hare@suse.com> Cc: Christoph Hellwig <hch@lst.de> Cc: <stable@vger.kernel.org> Signed-off-by: Mike Snitzer <snitzer@redhat.com>		2017-04-27 17:04:27 -04:00
..
bcache	sched/headers: Prepare to use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h>	2017-03-02 08:42:38 +01:00
persistent-data	dm btree: fix for dm_btree_find_lowest_key()	2017-04-24 14:47:49 -04:00
bitmap.c
bitmap.h
dm-bio-prison-v1.c	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-prison-v1.h	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-prison-v2.c	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-prison-v2.h	dm bio prison v2: new interface for the bio prison	2017-03-07 11:30:16 -05:00
dm-bio-record.h
dm-bufio.c	dm bufio: add sector start offset to dm-bufio interface	2017-03-07 13:28:33 -05:00
dm-bufio.h	dm bufio: add sector start offset to dm-bufio interface	2017-03-07 13:28:33 -05:00
dm-builtin.c
dm-cache-background-tracker.c	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-background-tracker.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-block-types.h
dm-cache-metadata.c
dm-cache-metadata.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-policy-internal.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-policy-smq.c	dm cache policy smq: make the cleaner policy write-back more aggressively	2017-03-31 11:41:05 -04:00
dm-cache-policy.c
dm-cache-policy.h	dm cache: significant rework to leverage dm-bio-prison-v2	2017-03-07 13:28:31 -05:00
dm-cache-target.c	dm cache: set/clear the cache core's dirty_bitset when loading mappings	2017-03-31 11:33:44 -04:00
dm-core.h
dm-crypt.c	dm crypt: replace custom implementation of hex2bin()	2017-04-27 12:08:31 -04:00
dm-delay.c	dm: mark targets that pass integrity data	2017-04-24 12:04:32 -04:00
dm-era-target.c	dm era: save spacemap metadata root after the pre-commit	2017-04-24 15:02:14 -04:00
dm-exception-store.c
dm-exception-store.h
dm-flakey.c
dm-integrity.c	dm integrity: use previously calculated log2 of sectors_per_block	2017-04-27 12:16:32 -04:00
dm-io.c
dm-ioctl.c	dm ioctl: prevent stack leak in dm ioctl call	2017-04-27 13:55:13 -04:00
dm-kcopyd.c
dm-linear.c	dm: mark targets that pass integrity data	2017-04-24 12:04:32 -04:00
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log-writes.c
dm-log.c
dm-mpath.c	dm mpath: avoid that path removal can trigger an infinite loop	2017-04-27 17:04:27 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid1.c
dm-raid.c	dm raid: add raid4/5/6 journal write-back support via journal_mode option	2017-03-27 12:08:07 -04:00
dm-region-hash.c
dm-round-robin.c
dm-rq.c	dm mpath: requeue after a small delay if blk_get_request() fails	2017-04-24 15:06:19 -04:00
dm-rq.h
dm-service-time.c
dm-snap-persistent.c
dm-snap-transient.c
dm-snap.c
dm-stats.c
dm-stats.h
dm-stripe.c	dm: mark targets that pass integrity data	2017-04-24 12:04:32 -04:00
dm-switch.c
dm-sysfs.c
dm-table.c	dm: mark targets that pass integrity data	2017-04-24 12:04:32 -04:00
dm-target.c
dm-thin-metadata.c
dm-thin-metadata.h
dm-thin.c	dm thin: fix a memory leak when passing discard bio down	2017-04-24 14:58:10 -04:00
dm-uevent.c
dm-uevent.h
dm-verity-fec.c	dm verity: switch to using asynchronous hash crypto API	2017-04-24 15:37:04 -04:00
dm-verity-fec.h
dm-verity-target.c	dm verity: switch to using asynchronous hash crypto API	2017-04-24 15:37:04 -04:00
dm-verity.h	dm verity: switch to using asynchronous hash crypto API	2017-04-24 15:37:04 -04:00
dm-zero.c
dm.c	dm: mark targets that pass integrity data	2017-04-24 12:04:32 -04:00
dm.h
faulty.c
Kconfig	dm raid: select the Kconfig option CONFIG_MD_RAID0	2017-03-30 11:17:08 -04:00
linear.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md	2017-02-24 14:42:19 -08:00
linear.h
Makefile	dm: add integrity target	2017-03-24 15:49:07 -04:00
md-cluster.c
md-cluster.h
md.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
md.h
multipath.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md	2017-02-24 14:42:19 -08:00
multipath.h
raid0.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md	2017-02-24 14:42:19 -08:00
raid0.h
raid1.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
raid1.h
raid5-cache.c	md: add raid4/5/6 journal mode switching API	2017-03-27 11:13:47 -04:00
raid5.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>	2017-03-02 08:42:29 +01:00
raid5.h	md: add raid4/5/6 journal mode switching API	2017-03-27 11:13:47 -04:00
raid10.c	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/shli/md	2017-02-24 14:42:19 -08:00
raid10.h