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linux-sg2042/drivers/md
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Shaohua Li 6e74a9cfb5 raid5-cache: IO error handling 
There are 3 places the raid5-cache dispatches IO. The discard IO error
doesn't matter, so we ignore it. The superblock write IO error can be
handled in MD core. The remaining are log write and flush. When the IO
error happens, we mark log disk faulty and fail all write IO. Read IO is
still allowed to run. Userspace will get a notification too and
corresponding daemon can choose setting raid array readonly for example.

Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: NeilBrown <neilb@suse.com>
 		2015-11-01 13:48:29 +11:00
..
bcache bcache: remove driver private bio splitting code 2015-08-13 12:31:40 -06:00
persistent-data dm: remove unlikely() before IS_ERR() 2015-08-12 11:32:21 -04:00
Kconfig SCSI misc on 20150911 2015-09-11 18:15:18 -07:00
Makefile raid5: add basic stripe log 2015-10-24 17:16:19 +11:00
bitmap.c md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
bitmap.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
dm-bio-prison.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm-bio-prison.h dm bio prison: add dm_cell_promote_or_release() 2015-05-29 14:19:06 -04:00
dm-bio-record.h dm: Refactor for new bio cloning/splitting 2013-11-23 22:33:55 -08:00
dm-bufio.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
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: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
dm-cache-metadata.h dm cache: add fail io mode and needs_check flag 2015-06-11 17:13:00 -04:00
dm-cache-policy-cleaner.c dm cache: fix NULL pointer when switching from cleaner policy 2015-10-09 09:16:29 -04:00
dm-cache-policy-internal.h dm cache: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-policy-mq.c dm cache policy smq: move 'dm-cache-default' module alias to SMQ 2015-08-12 11:27:29 -04:00
dm-cache-policy-smq.c dm cache policy smq: change the mutex to a spinlock 2015-08-12 11:32:19 -04:00
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: age and write back cache entries even without active IO 2015-06-11 17:13:01 -04:00
dm-cache-target.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-crypt.c dm crypt: constrain crypt device's max_segment_size to PAGE_SIZE 2015-09-14 12:04:24 -04:00
dm-delay.c dm: do not override error code returned from dm_get_device() 2015-08-12 11:32:21 -04:00
dm-era-target.c block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
dm-exception-store.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-exception-store.h dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-flakey.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-io.c block: remove bio_get_nr_vecs() 2015-08-13 12:32:04 -06:00
dm-ioctl.c char: make misc_deregister a void function 2015-08-05 10:35:49 -07:00
dm-kcopyd.c dm: stop using WQ_NON_REENTRANT 2013-08-23 09:02:13 -04:00
dm-linear.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-log-userspace-base.c dm log userspace base: fix compile warning 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.c dm log userspace transfer: match wait_for_completion_timeout return type 2015-04-15 12:10:20 -04:00
dm-log-userspace-transfer.h
…
dm-log-writes.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-log.c dm: use memweight() 2012-07-30 17:25:16 -07:00
dm-mpath.c dm-mpath, scsi_dh: request scsi_dh modules in scsi_dh, not dm-mpath 2015-08-28 13:14:55 -07:00
dm-mpath.h
…
dm-path-selector.c
…
dm-path-selector.h
…
dm-queue-length.c
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dm-raid.c dm raid: fix round up of default region size 2015-10-02 12:02:31 -04:00
dm-raid1.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
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: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-snap-transient.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-snap.c dm snapshot: add new persistent store option to support overflow 2015-10-09 16:57:03 -04:00
dm-stats.c dm stats: report precise_timestamps and histogram in @stats_list output 2015-08-18 17:20:03 -04:00
dm-stats.h dm stats: support precise timestamps 2015-06-17 12:40:40 -04:00
dm-stripe.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-switch.c dm switch: efficiently support repetitive patterns 2014-08-01 12:30:37 -04:00
dm-sysfs.c dm: add 'use_blk_mq' module param and expose in per-device ro sysfs attr 2015-04-15 12:10:17 -04:00
dm-table.c block: Replace SG_GAPS with new queue limits mask 2015-08-19 14:26:02 -07:00
dm-target.c dm: allocate requests in target when stacking on blk-mq devices 2015-02-09 13:06:47 -05:00
dm-thin-metadata.c dm thin metadata: delete btrees when releasing metadata snapshot 2015-08-12 10:42:51 -04:00
dm-thin-metadata.h dm thin metadata: add dm_thin_remove_range() 2015-06-11 17:13:04 -04:00
dm-thin.c dm thin: disable discard support for thin devices if pool's is disabled 2015-09-13 21:32:10 -04:00
dm-uevent.c
…
dm-uevent.h
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dm-verity.c Merge tag 'dm-4.3-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm 2015-09-02 16:35:26 -07:00
dm-zero.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
dm.c dm: fix request-based dm error reporting 2015-10-06 10:08:16 -04:00
dm.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
faulty.c block: add a bi_error field to struct bio 2015-07-29 08:55:15 -06:00
linear.c block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
linear.h
…
md-cluster.c md-cluster: remove mddev arg from add_resync_info() 2015-10-24 17:16:18 +11:00
md-cluster.h md-cluster: Fix adding of new disk with new reload code 2015-10-12 03:35:30 -05:00
md.c MD: fix info output for journal disk 2015-11-01 13:48:29 +11:00
md.h md: skip resync for raid array with journal 2015-11-01 13:48:26 +11:00
multipath.c md: drop null test before destroy functions 2015-10-02 17:23:44 +10:00
multipath.h
…
raid0.c md/raid0: apply base queue limits *before* disk_stack_limits 2015-10-02 17:23:44 +10:00
raid0.h block: kill merge_bvec_fn() completely 2015-08-13 12:31:57 -06:00
raid1.c md-cluster: Call update_raid_disks() if another node --grow's raid_disks 2015-10-24 17:16:18 +11:00
raid1.h md-cluster: Use a small window for resync 2015-10-12 01:32:05 -05:00
raid5-cache.c raid5-cache: IO error handling 2015-11-01 13:48:29 +11:00
raid5.c raid5-cache: IO error handling 2015-11-01 13:48:29 +11:00
raid5.h raid5-cache: IO error handling 2015-11-01 13:48:29 +11:00
raid10.c Merge branch 'md-next' of git://github.com/goldwynr/linux into for-next 2015-10-14 07:09:52 +11:00
raid10.h md/raid10: ensure device failure recorded before write request returns. 2015-08-31 19:43:45 +02:00