Ming Lin 7ef6b12a19 md/raid5: split bio for chunk_aligned_read ... If a read request fits entirely in a chunk, it will be passed directly to the underlying device (providing it hasn't failed of course). If it doesn't fit, the slightly less efficient path that uses the stripe_cache is used. Requests that get to the stripe cache are always completely split up as necessary. So with RAID5, ripping out the merge_bvec_fn doesn't cause it to stop work, but could cause it to take the less efficient path more often. All that is needed to manage this is for 'chunk_aligned_read' do some bio splitting, much like the RAID0 code does. Cc: Neil Brown <neilb@suse.de> Cc: linux-raid@vger.kernel.org Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: Ming Lin <ming.l@ssi.samsung.com> Signed-off-by: Jens Axboe <axboe@fb.com>		2015-08-13 12:31:51 -06:00
..
bcache	bcache: remove driver private bio splitting code	2015-08-13 12:31:40 -06:00
persistent-data	dm space map metadata: fix occasional leak of a metadata block on resize	2015-06-17 10:09:23 -04:00
bitmap.c	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2015-07-04 19:36:06 -07:00
bitmap.h	md-cluster: re-add capabilities	2015-04-22 07:59:39 +10:00
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	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-bufio.h
dm-builtin.c
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: pass a new 'critical' flag to the policies when requesting writeback work	2015-05-29 14:19:04 -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: switch the "default" cache replacement policy from mq to smq	2015-06-17 12:40:38 -04:00
dm-cache-policy-smq.c	dm cache policy smq: fix "default" version to be 1.4.0	2015-06-26 10:14:28 -04:00
dm-cache-policy.c
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	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-crypt.c	block: don't access bio->bi_error after bio_put()	2015-08-11 11:34:32 -06:00
dm-delay.c	dm delay: use msecs_to_jiffies for time conversion	2015-04-15 12:10:21 -04:00
dm-era-target.c
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-io.c	block: don't access bio->bi_error after bio_put()	2015-08-11 11:34:32 -06:00
dm-ioctl.c	dm: only initialize the request_queue once	2015-04-30 10:25:21 -04:00
dm-kcopyd.c
dm-linear.c
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	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-log.c
dm-mpath.c	dm mpath: fix leak of dm_mpath_io structure in blk-mq .queue_rq error path	2015-05-27 17:37:22 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c	dm raid: add support for the MD RAID0 personality	2015-05-29 14:19:00 -04:00
dm-raid1.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: remove unnecessary NULL checks before vfree() calls	2015-02-09 13:06:49 -05:00
dm-snap-transient.c
dm-snap.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-stats.c	dm stats: add support for request-based DM devices	2015-06-17 12:40:41 -04:00
dm-stats.h	dm stats: support precise timestamps	2015-06-17 12:40:40 -04:00
dm-stripe.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-switch.c
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	Revert "block, dm: don't copy bios for request clones"	2015-06-26 10:11:58 -04:00
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: fix a race when entering fail mode	2015-06-11 17:13:06 -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	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-uevent.c
dm-uevent.h
dm-verity.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm-zero.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
dm.c	block: make generic_make_request handle arbitrarily sized bios	2015-08-13 12:31:33 -06:00
dm.h	- Revert block and DM core changes the removed request-based DM's	2015-06-26 12:35:01 -07:00
faulty.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
Kconfig	dm cache: add stochastic-multi-queue (smq) policy	2015-06-11 17:12:59 -04:00
linear.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
linear.h
Makefile	dm cache: add stochastic-multi-queue (smq) policy	2015-06-11 17:12:59 -04:00
md-cluster.c	md-cluster: re-add capabilities	2015-04-22 07:59:39 +10:00
md-cluster.h	md-cluster: re-add capabilities	2015-04-22 07:59:39 +10:00
md.c	block: make generic_make_request handle arbitrarily sized bios	2015-08-13 12:31:33 -06:00
md.h	writeback: separate out include/linux/backing-dev-defs.h	2015-06-02 08:33:34 -06:00
multipath.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
multipath.h
raid0.c	block: add a bi_error field to struct bio	2015-07-29 08:55:15 -06:00
raid0.h
raid1.c	block: manipulate bio->bi_flags through helpers	2015-07-29 08:55:20 -06:00
raid1.h	md: make ->congested robust against personality changes.	2015-02-04 08:35:52 +11:00
raid5.c	md/raid5: split bio for chunk_aligned_read	2015-08-13 12:31:51 -06:00
raid5.h	md/raid5: per hash value and exclusive wait_for_stripe	2015-06-17 10:00:27 +10:00
raid10.c	block: manipulate bio->bi_flags through helpers	2015-07-29 08:55:20 -06:00
raid10.h	md: make ->congested robust against personality changes.	2015-02-04 08:35:52 +11:00