Bian Yu edfa1f651e raid5: Retry R5_ReadNoMerge flag when hit a read error. ... Because of block layer merge, one bio fails will cause other bios which belongs to the same request fails, so raid5_end_read_request will record all these bios as badblocks. If retry request with R5_ReadNoMerge flag to avoid bios merge, badblocks can only record sector which is bad exactly. test: hdparm --yes-i-know-what-i-am-doing --make-bad-sector 300000 /dev/sdb mdadm -C /dev/md0 -l5 -n3 /dev/sd[bcd] --assume-clean mdadm /dev/md0 -f /dev/sdd mdadm /dev/md0 -r /dev/sdd mdadm --zero-superblock /dev/sdd mdadm /dev/md0 -a /dev/sdd 1. Without this patch: cat /sys/block/md0/md/rd*/bad_blocks 299776 256 299776 256 2. With this patch: cat /sys/block/md0/md/rd*/bad_blocks 300000 8 300000 8 Signed-off-by: Bian Yu <bianyu@kedacom.com> Signed-off-by: NeilBrown <neilb@suse.de>		2013-11-19 15:18:24 +11:00
..
bcache	bcache: Fixed incorrect order of arguments to bio_alloc_bioset()	2013-10-23 07:55:36 +01:00
persistent-data	dm space map: optimise sm_ll_dec and sm_ll_inc	2013-08-23 09:02:14 -04:00
bitmap.c	sysfs: clean up sysfs_get_dirent()	2013-09-26 15:33:18 -07:00
bitmap.h
dm-bio-prison.c
dm-bio-prison.h
dm-bio-record.h
dm-bufio.c	drivers: convert shrinkers to new count/scan API	2013-09-10 18:56:32 -04:00
dm-bufio.h
dm-cache-block-types.h
dm-cache-metadata.c
dm-cache-metadata.h
dm-cache-policy-cleaner.c
dm-cache-policy-internal.h
dm-cache-policy-mq.c	dm cache: avoid conflicting remove_mapping() in mq policy	2013-08-16 15:56:51 -04:00
dm-cache-policy.c
dm-cache-policy.h
dm-cache-target.c	dm cache: eliminate holes in cache structure	2013-08-23 09:02:14 -04:00
dm-crypt.c	dm: stop using WQ_NON_REENTRANT	2013-08-23 09:02:13 -04:00
dm-delay.c
dm-exception-store.c
dm-exception-store.h
dm-flakey.c	dm flakey: correct ctr alloc failure mesg	2013-07-10 23:41:17 +01:00
dm-io.c	dm: add reserved_bio_based_ios module parameter	2013-09-23 10:42:24 -04:00
dm-ioctl.c	dm: add statistics support	2013-09-05 20:46:06 -04:00
dm-kcopyd.c	dm: stop using WQ_NON_REENTRANT	2013-08-23 09:02:13 -04:00
dm-linear.c
dm-log-userspace-base.c
dm-log-userspace-transfer.c
dm-log-userspace-transfer.h
dm-log.c
dm-mpath.c	dm: add reserved_rq_based_ios module parameter	2013-09-23 10:42:24 -04:00
dm-mpath.h
dm-path-selector.c
dm-path-selector.h
dm-queue-length.c
dm-raid.c
dm-raid1.c	dm: stop using WQ_NON_REENTRANT	2013-08-23 09:02:13 -04:00
dm-region-hash.c
dm-round-robin.c
dm-service-time.c
dm-snap-persistent.c	dm snapshot: fix data corruption	2013-10-16 03:17:47 +01:00
dm-snap-transient.c
dm-snap.c	dm-snapshot: fix performance degradation due to small hash size	2013-09-20 10:36:34 -04:00
dm-stats.c	dm stats: fix possible counter corruption on 32-bit systems	2013-09-18 14:41:06 -04:00
dm-stats.h	dm: add statistics support	2013-09-05 20:46:06 -04:00
dm-stripe.c	dm stripe: silence a couple sparse warnings	2013-09-06 11:36:01 -04:00
dm-switch.c	dm: add switch target	2013-07-10 23:41:19 +01:00
dm-sysfs.c
dm-table.c	dm ioctl: increase granularity of type_lock when loading table	2013-09-05 20:46:06 -04:00
dm-target.c	dm: allow error target to replace bio-based and request-based targets	2013-09-05 20:46:05 -04:00
dm-thin-metadata.c
dm-thin-metadata.h
dm-thin.c	dm thin: do not expose non-zero discard limits if discards disabled	2013-09-23 10:42:06 -04:00
dm-uevent.c
dm-uevent.h
dm-verity.c	dm verity: use __ffs and __fls	2013-07-10 23:41:17 +01:00
dm-zero.c
dm.c	dm: add reserved_bio_based_ios module parameter	2013-09-23 10:42:24 -04:00
dm.h	dm: add reserved_bio_based_ios module parameter	2013-09-23 10:42:24 -04:00
faulty.c
Kconfig	dm: add switch target	2013-07-10 23:41:19 +01:00
linear.c
linear.h
Makefile	dm: add statistics support	2013-09-05 20:46:06 -04:00
md.c	md: fix calculation of stacking limits on level change.	2013-11-14 15:16:15 +11:00
md.h	sysfs: clean up sysfs_get_dirent()	2013-09-26 15:33:18 -07:00
multipath.c
multipath.h
raid0.c
raid0.h
raid1.c	md: Fix skipping recovery for read-only arrays.	2013-10-24 12:55:17 +11:00
raid1.h
raid5.c	raid5: Retry R5_ReadNoMerge flag when hit a read error.	2013-11-19 15:18:24 +11:00
raid5.h	raid5: relieve lock contention in get_active_stripe()	2013-11-19 15:18:22 +11:00
raid10.c	md: Fix skipping recovery for read-only arrays.	2013-10-24 12:55:17 +11:00
raid10.h