NeilBrown 688834e6ae md/failfast: add failfast flag for md to be used by some personalities. ... This patch just adds a 'failfast' per-device flag which can be stored in v0.90 or v1.x metadata. The flag is not used yet but the intent is that it can be used for mirrored (raid1/raid10) arrays where low latency is more important than keeping all devices on-line. Setting the flag for a device effectively gives permission for that device to be marked as Faulty and excluded from the array on the first error. The underlying driver will be directed not to retry requests that result in failures. There is a proviso that the device must not be marked faulty if that would cause the array as a whole to fail, it may only be marked Faulty if the array remains functional, but is degraded. Failures on read requests will cause the device to be marked as Faulty immediately so that further reads will avoid that device. No attempt will be made to correct read errors by over-writing with the correct data. It is expected that if transient errors, such as cable unplug, are possible, then something in user-space will revalidate failed devices and re-add them when they appear to be working again. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: Shaohua Li <shli@fb.com>		2016-11-22 08:58:17 -08:00
..
bcache	block: export bio_free_pages to other modules	2016-09-22 07:48:03 -06:00
persistent-data	dm array: introduce cursor api	2016-09-22 11:15:04 -04:00
bitmap.c	md/bitmap: add blktrace event for writes to the bitmap	2016-11-18 09:34:45 -08:00
bitmap.h	md-cluster: sync bitmap when node received RESYNCING msg	2016-05-04 12:39:35 -07:00
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-bufio.c	. various fixes and cleanups for request-based DM core	2016-10-09 17:16:18 -07:00
dm-bufio.h
dm-builtin.c	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
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 metadata: switch to using the new cursor api for loading metadata	2016-09-22 11:15:05 -04:00
dm-cache-metadata.h	dm cache: make sure every metadata function checks fail_io	2016-03-10 17:12:12 -05:00
dm-cache-policy-cleaner.c	dm cache: speed up writing of the hint array	2016-09-22 11:15:02 -04:00
dm-cache-policy-internal.h	dm cache: speed up writing of the hint array	2016-09-22 11:15:02 -04:00
dm-cache-policy-smq.c	dm cache policy smq: distribute entries to random levels when switching to smq	2016-09-22 11:15:03 -04:00
dm-cache-policy.c
dm-cache-policy.h	dm cache: speed up writing of the hint array	2016-09-22 11:15:02 -04:00
dm-cache-target.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-core.h	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-crypt.c	. various fixes and cleanups for request-based DM core	2016-10-09 17:16:18 -07:00
dm-delay.c	dm: rename target's per_bio_data_size to per_io_data_size	2016-02-22 22:34:37 -05:00
dm-era-target.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-exception-store.c	- Revert a dm-multipath change that caused a regression for unprivledged	2015-11-04 21:19:53 -08:00
dm-exception-store.h	dm snapshot: fix hung bios when copy error occurs	2016-01-08 20:03:05 -05:00
dm-flakey.c	dm flakey: fix reads to be issued if drop_writes configured	2016-08-24 21:55:05 -04:00
dm-io.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-ioctl.c	dm: allow bio-based table to be upgraded to bio-based with DAX support	2016-07-20 23:49:52 -04:00
dm-kcopyd.c	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-linear.c	libnvdimm for 4.8	2016-07-28 17:38:16 -07:00
dm-log-userspace-base.c	dm: drop NULL test before kmem_cache_destroy() and mempool_destroy()	2015-10-31 19:06:00 -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 branch 'for-4.9/block' of git://git.kernel.dk/linux-block	2016-10-07 14:42:05 -07:00
dm-log.c	dm log: fix unitialized bio operation flags	2016-08-24 21:55:05 -04:00
dm-mpath.c	dm mpath: always return reservation conflict without failing over	2016-09-29 10:57:07 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h	dm path selector: remove 'repeat_count' return from .select_path hook	2016-02-22 22:34:42 -05:00
dm-queue-length.c	dm path selector: remove 'repeat_count' return from .select_path hook	2016-02-22 22:34:42 -05:00
dm-raid1.c	dm mirror: use all available legs on multiple failures	2016-10-14 11:55:17 -04:00
dm-raid.c	dm raid: fix activation of existing raid4/10 devices	2016-10-17 16:41:31 -04:00
dm-region-hash.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-round-robin.c	dm round robin: do not use this_cpu_ptr() without having preemption disabled	2016-08-15 09:23:14 -04:00
dm-rq.c	- A couple DM raid and DM mirror fixes	2016-10-28 09:27:58 -07:00
dm-rq.h	dm rq: introduce dm_mq_kick_requeue_list()	2016-09-15 11:16:05 -04:00
dm-service-time.c	dm path selector: remove 'repeat_count' return from .select_path hook	2016-02-22 22:34:42 -05:00
dm-snap-persistent.c	dm: use bio op accessors	2016-06-07 13:41:38 -06:00
dm-snap-transient.c	dm snapshot: fix hung bios when copy error occurs	2016-01-08 20:03:05 -05:00
dm-snap.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-stats.c	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-stats.h	dm stats: support precise timestamps	2015-06-17 12:40:40 -04:00
dm-stripe.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-switch.c	dm switch: simplify conditional in alloc_region_table()	2015-10-31 19:06:06 -04:00
dm-sysfs.c	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
dm-table.c	dm table: fix missing dm_put_target_type() in dm_table_add_target()	2016-10-24 11:17:46 -04:00
dm-target.c	libnvdimm for 4.8	2016-07-28 17:38:16 -07:00
dm-thin-metadata.c	dm thin: fix a race condition between discarding and provisioning a block	2016-07-20 12:43:35 -04:00
dm-thin-metadata.h	dm thin: fix a race condition between discarding and provisioning a block	2016-07-20 12:43:35 -04:00
dm-thin.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm-uevent.c
dm-uevent.h
dm-verity-fec.c	dm verity fec: fix block calculation	2016-07-01 23:29:08 -04:00
dm-verity-fec.h	dm verity: add support for forward error correction	2015-12-10 10:39:03 -05:00
dm-verity-target.c	dm: rename target's per_bio_data_size to per_io_data_size	2016-02-22 22:34:37 -05:00
dm-verity.h	dm verity: add ignore_zero_blocks feature	2015-12-10 10:39:03 -05:00
dm-zero.c	block: rename bio bi_rw to bi_opf	2016-08-07 14:41:02 -06:00
dm.c	- A couple DM raid and DM mirror fixes	2016-10-28 09:27:58 -07:00
dm.h	dm: add infrastructure for DAX support	2016-07-20 23:49:49 -04:00
faulty.c	MD: rename some functions	2016-01-20 13:52:20 -08:00
Kconfig	dm: add missing newline between DM_DEBUG_BLOCK_STACK_TRACING and DM_BUFIO	2016-03-10 17:12:11 -05:00
linear.c	md: add block tracing for bio_remapping	2016-11-18 09:32:50 -08:00
linear.h
Makefile	dm: move request-based code out to dm-rq.[hc]	2016-06-10 15:15:44 -04:00
md-cluster.c	md-cluster: make resync lock also could be interruptted	2016-09-21 09:09:44 -07:00
md-cluster.h	md-cluster: gather resync infos and enable recv_thread after bitmap is ready	2016-05-09 09:24:03 -07:00
md.c	md/failfast: add failfast flag for md to be used by some personalities.	2016-11-22 08:58:17 -08:00
md.h	md/failfast: add failfast flag for md to be used by some personalities.	2016-11-22 08:58:17 -08:00
multipath.c	md/multipath: replace printk() with pr_*()	2016-11-07 15:08:22 -08:00
multipath.h
raid0.c	md: add block tracing for bio_remapping	2016-11-18 09:32:50 -08:00
raid0.h	block: kill merge_bvec_fn() completely	2015-08-13 12:31:57 -06:00
raid1.c	md/raid1, raid10: add blktrace records when IO is delayed	2016-11-18 09:35:37 -08:00
raid1.h	md: define mddev flags, recovery flags and r1bio state bits using enums	2016-11-09 12:53:52 -08:00
raid5-cache.c	md/r5cache: handle FLUSH and FUA	2016-11-18 17:13:49 -08:00
raid5.c	md/r5cache: handle FLUSH and FUA	2016-11-18 17:13:49 -08:00
raid5.h	md/r5cache: handle FLUSH and FUA	2016-11-18 17:13:49 -08:00
raid10.c	md/raid1, raid10: add blktrace records when IO is delayed	2016-11-18 09:35:37 -08:00
raid10.h	raid10: improve random reads performance	2016-07-19 15:20:28 -07:00