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fc1ff9588a
linux/drivers/md
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Jonathan Brassow fc1ff9588a dm raid1: handle log failure 
When writing to a mirror, the log must be updated first.  Failure
to update the log could result in the log not properly reflecting
the state of the mirror if the machine should crash.

We change the return type of the rh_flush function to give us
the ability to check if a log write was successful.  If the
log write was unsuccessful, we fail the writes to avoid the
case where the log does not properly reflect the state of the
mirror.

A follow-up patch - which is dependent on the ability to
requeue I/O's to core device-mapper - will requeue the I/O's
for retry (allowing the mirror to be reconfigured.)

Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-12 15:01:08 -07:00
..
raid6test
.gitignore
bitmap.c md: don't write more than is required of the last page of a bitmap 2007-05-23 20:14:14 -07:00
dm-bio-list.h dm: bio_list prefetch removal 2007-07-12 15:01:08 -07:00
dm-bio-record.h
dm-crypt.c dm: disable barriers 2007-07-12 15:01:08 -07:00
dm-delay.c dm delay: cleanup 2007-07-12 15:01:08 -07:00
dm-emc.c [PATCH] struct path: rename DM's struct path 2006-12-08 08:28:40 -08:00
dm-exception-store.c dm snapshot: permit invalid activation 2007-07-12 15:01:08 -07:00
dm-hw-handler.c BUG_ON() Conversion in md/dm-hw-handler.c 2006-03-24 18:36:27 +01:00
dm-hw-handler.h dm mpath: log device name 2007-05-09 12:30:46 -07:00
dm-io.c dm io: fix panic on large request 2007-07-12 15:01:08 -07:00
dm-io.h dm io: remove old interface 2007-05-09 12:30:47 -07:00
dm-ioctl.c [PATCH] mark struct file_operations const 4 2007-02-12 09:48:45 -08:00
dm-linear.c [PATCH] dm: map and endio symbolic return codes 2006-12-08 08:29:09 -08:00
dm-log.c dm log: fix resume failed log device 2007-05-09 12:30:48 -07:00
dm-log.h [PATCH] dm: log: rename complete_resync_work 2006-12-08 08:29:09 -08:00
dm-mpath.c dm: disable barriers 2007-07-12 15:01:08 -07:00
dm-mpath.h [PATCH] struct path: rename DM's struct path 2006-12-08 08:28:40 -08:00
dm-path-selector.c BUG_ON() Conversion in md/dm-path-selector.c 2006-03-26 18:21:58 +02:00
dm-path-selector.h [PATCH] struct path: rename DM's struct path 2006-12-08 08:28:40 -08:00
dm-raid1.c dm raid1: handle log failure 2007-07-12 15:01:08 -07:00
dm-round-robin.c dm: remove duplicate module name from error msgs 2007-07-12 15:01:08 -07:00
dm-snap.c dm: disable barriers 2007-07-12 15:01:08 -07:00
dm-snap.h dm: use kmem_cache macro 2007-07-12 15:01:08 -07:00
dm-stripe.c [PATCH] dm: map and endio symbolic return codes 2006-12-08 08:29:09 -08:00
dm-table.c dm: allow offline devices 2007-05-09 12:30:47 -07:00
dm-target.c [PATCH] dm: improve error message consistency 2006-06-26 09:58:36 -07:00
dm-zero.c [PATCH] dm: map and endio symbolic return codes 2006-12-08 08:29:09 -08:00
dm.c dm: disable barriers 2007-07-12 15:01:08 -07:00
dm.h dm: add ratelimit logging macros 2007-07-12 15:01:08 -07:00
faulty.c [PATCH] md: Don't assume that READ==0 and WRITE==1 - use the names explicitly 2006-12-13 09:05:48 -08:00
Kconfig dm: delay target 2007-05-09 12:30:47 -07:00
kcopyd.c dm: use kmem_cache macro 2007-07-12 15:01:08 -07:00
kcopyd.h
linear.c md: fix bug with linear hot-add and elsewhere 2007-05-23 20:14:14 -07:00
Makefile dm: delay target 2007-05-09 12:30:47 -07:00
md.c md: fix bug with linear hot-add and elsewhere 2007-05-23 20:14:14 -07:00
mktables.c
multipath.c [PATCH] md: fix up maintenance of ->degraded in multipath 2006-10-28 11:30:51 -07:00
raid0.c md: avoid overflow in raid0 calculation with large components 2007-05-23 20:14:14 -07:00
raid1.c md: fix bug in error handling during raid1 repair 2007-06-16 13:16:15 -07:00
raid5.c Revert "md: improve partition detection in md array" 2007-05-09 18:51:36 -07:00
raid6.h
raid6algos.c [PATCH] drivers/md/raid6algos.c: fix a NULL dereference 2006-06-23 07:43:08 -07:00
raid6altivec.uc
raid6int.uc
raid6mmx.c [PATCH] md: RAID6: clean up CPUID and FPU enter/exit code 2007-03-01 14:53:36 -08:00
raid6recov.c
raid6sse1.c [PATCH] md: RAID6: clean up CPUID and FPU enter/exit code 2007-03-01 14:53:36 -08:00
raid6sse2.c [PATCH] md: RAID6: clean up CPUID and FPU enter/exit code 2007-03-01 14:53:36 -08:00
raid6x86.h [PATCH] md: RAID6: clean up CPUID and FPU enter/exit code 2007-03-01 14:53:36 -08:00
raid10.c md: fix two raid10 bugs 2007-06-16 13:16:15 -07:00
unroll.pl
xor.c