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698b18c1e8
linux/drivers/md
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NeilBrown 698b18c1e8 md: raid1: Fix restoration of bio between failed read and write. 
When performing a "recovery" or "check" pass on a RAID1 array, we read
from each device and possible, if there is a difference or a read error,
write back to some devices.

We use the same 'bio' for both read and write, resetting various fields
between the two operations.

We forgot to reset bv_offset and bv_len however.  These are often left
unchanged, but in the case where there is an IO error one or two sectors
into a page, they are changed.

This results in correctable errors not being corrected properly.  It does
not result in any data corruption.

Cc: "Fairbanks, David" <David.Fairbanks@stratus.com>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-24 09:56:10 -07:00
..
raid6test md: raid6: clean up the style of raid6test/test.c 2008-02-06 10:41:18 -08:00
.gitignore
bitmap.c md: kill file_path wrapper 2008-05-24 09:56:09 -07:00
dm-bio-list.h dm: bio_list macro renaming 2007-10-20 02:01:11 +01:00
dm-bio-record.h
dm-crypt.c dm crypt: fix ctx pending 2008-03-28 14:45:22 -07:00
dm-delay.c dm: bio_list macro renaming 2007-10-20 02:01:11 +01:00
dm-emc.c block: no need to initialize rq->cmd with blk_get_request 2008-04-29 14:48:55 +02:00
dm-exception-store.c dm: move include files 2008-04-25 13:26:55 +01:00
dm-hw-handler.c dm: use kzalloc 2007-10-20 02:01:07 +01:00
dm-hw-handler.h dm mpath: add retry pg init 2007-10-20 02:01:18 +01:00
dm-io.c dm: unplug queues in threads 2008-04-25 13:26:57 +01:00
dm-ioctl.c dm ioctl: use uninitialized_var 2008-02-08 02:10:16 +00:00
dm-kcopyd.c dm: unplug queues in threads 2008-04-25 13:26:57 +01:00
dm-linear.c [PATCH] dm: map and endio symbolic return codes 2006-12-08 08:29:09 -08:00
dm-log.c dm: move include files 2008-04-25 13:26:55 +01:00
dm-mpath-hp-sw.c block: no need to initialize rq->cmd with blk_get_request 2008-04-29 14:48:55 +02:00
dm-mpath-rdac.c block: no need to initialize rq->cmd with blk_get_request 2008-04-29 14:48:55 +02:00
dm-mpath.c dm mpath: add missing static 2008-02-08 02:10:35 +00:00
dm-mpath.h [PATCH] struct path: rename DM's struct path 2006-12-08 08:28:40 -08:00
dm-path-selector.c dm: use kzalloc 2007-10-20 02:01:07 +01:00
dm-path-selector.h [PATCH] struct path: rename DM's struct path 2006-12-08 08:28:40 -08:00
dm-raid1.c dm: unplug queues in threads 2008-04-25 13:26:57 +01:00
dm-round-robin.c dm: remove duplicate module name from error msgs 2007-07-12 15:01:08 -07:00
dm-snap.c dm: move include files 2008-04-25 13:26:55 +01:00
dm-snap.h dm kcopyd: clean interface 2008-04-25 13:26:44 +01:00
dm-stripe.c dm: stripe enhanced status return 2008-02-08 02:11:24 +00:00
dm-table.c dm: use unlocked variants of queue flag check/set 2008-04-29 10:21:12 -07:00
dm-target.c dm: use kzalloc 2007-10-20 02:01:07 +01:00
dm-uevent.c md: replace remaining __FUNCTION__ occurrences 2008-04-28 08:58:42 -07:00
dm-uevent.h dm: uevent generate events 2007-10-20 02:01:26 +01:00
dm-zero.c Drop 'size' argument from bio_endio and bi_end_io 2007-10-10 09:25:57 +02:00
dm.c dm: remove md argument from specific_minor 2008-04-25 13:27:02 +01:00
dm.h dm: expose macros 2008-04-25 13:26:53 +01:00
faulty.c md: change ITERATE_RDEV to rdev_for_each 2008-02-06 10:41:19 -08:00
Kconfig dm: targets no longer experimental 2008-02-08 02:10:32 +00:00
linear.c Remove blkdev warning triggered by using md 2008-05-14 19:11:15 -07:00
Makefile dm: move include files 2008-04-25 13:26:55 +01:00
md.c md: kill file_path wrapper 2008-05-24 09:56:09 -07:00
mktables.c md: raid6: Fix mktable.c 2008-02-06 10:41:18 -08:00
multipath.c Remove blkdev warning triggered by using md 2008-05-14 19:11:15 -07:00
raid0.c Remove blkdev warning triggered by using md 2008-05-14 19:11:15 -07:00
raid1.c md: raid1: Fix restoration of bio between failed read and write. 2008-05-24 09:56:10 -07:00
raid5.c md: md: raid5 rate limit error printk 2008-05-24 09:56:10 -07:00
raid6.h
raid6algos.c drivers/md: use time_before, time_before_eq, etc 2008-04-28 08:58:42 -07:00
raid6altivec.uc
raid6int.uc
raid6mmx.c x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid6recov.c
raid6sse1.c x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid6sse2.c x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid6x86.h x86 merge fallout: uml 2007-10-29 07:41:32 -07:00
raid10.c Remove blkdev warning triggered by using md 2008-05-14 19:11:15 -07:00
unroll.pl