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NeilBrown 212e7eb7a3 md/raid1: add failfast handling for writes. 
When writing to a fastfail device we use MD_FASTFAIL unless
it is the only device being written to.

For resync/recovery, assume there was a working device to
read from so always use REQ_FASTFAIL_DEV.

If a write for resync/recovery fails, we just fail the
device - there is not much else to do.

If a normal failfast write fails, but the device cannot be
failed (must be only one left), we queue for write error
handling.  This will call narrow_write_error() to retry the
write synchronously and without any FAILFAST flags.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Shaohua Li <shli@fb.com>
2016-11-22 09:14:10 -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: Use REQ_FAILFAST_* on metadata writes where appropriate
2016-11-22 09:11:33 -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: Use REQ_FAILFAST_* on metadata writes where appropriate
2016-11-22 09:11:33 -08:00
md.h
md: Use REQ_FAILFAST_* on metadata writes where appropriate
2016-11-22 09:11:33 -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: add failfast handling for writes.
2016-11-22 09:14:10 -08:00
raid1.h
md/raid1: add failfast handling for reads.
2016-11-22 09:13:18 -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: Use REQ_FAILFAST_* on metadata writes where appropriate
2016-11-22 09:11:33 -08:00
raid10.h
raid10: improve random reads performance
2016-07-19 15:20:28 -07:00