kernel-ark/drivers/md
Mikulas Patocka ede5ea0b8b dm raid1: always return error if all legs fail
If all mirror legs fail, always return an error instead of holding the
bio, even if the handle_errors option was set.  At present it is the
responsibility of the driver underneath us to deal with retries,
multipath etc.

The patch adds the bio to the failures list instead of holding it
directly.  do_failures tests first if all legs failed and, if so,
returns the bio with -EIO.  If any leg is still alive and handle_errors
is set, do_failures calls hold_bio.

Reviewed-by: Takahiro Yasui <tyasui@redhat.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
2010-03-06 02:32:22 +00:00
..
raid6test md: drivers/md/unroll.pl replaced with awk analog 2009-10-16 16:25:19 +11:00
.gitignore
bitmap.c md/bitmap: update dirty flag when bitmap bits are explicitly set. 2009-12-14 12:51:41 +11:00
bitmap.h md: Support write-intent bitmaps with externally managed metadata. 2009-12-14 12:51:41 +11:00
dm-bio-record.h dm: preserve bi_io_vec when resubmitting bios 2009-04-02 19:55:23 +01:00
dm-crypt.c dm crypt: add plain64 iv 2009-12-10 23:52:25 +00:00
dm-delay.c dm table: pass correct dev area size to device_area_is_valid 2009-07-23 20:30:42 +01:00
dm-exception-store.c dm snapshot: move cow ref from exception store to snap core 2009-12-10 23:52:12 +00:00
dm-exception-store.h dm snapshot: add merging 2009-12-10 23:52:32 +00:00
dm-io.c dm io: handle empty barriers 2009-12-10 23:52:22 +00:00
dm-ioctl.c dm: rename dm_suspended to dm_suspended_md 2009-12-10 23:52:26 +00:00
dm-kcopyd.c dm kcopyd: accept zero size jobs 2009-12-10 23:52:13 +00:00
dm-linear.c dm table: pass correct dev area size to device_area_is_valid 2009-07-23 20:30:42 +01:00
dm-log-userspace-base.c dm log: userspace fix incorrect luid cast in userspace_ctr 2009-10-16 23:18:15 +01:00
dm-log-userspace-transfer.c dm log: userspace fix overhead_size calcuations 2010-02-16 18:42:53 +00:00
dm-log-userspace-transfer.h dm log: userspace add luid to distinguish between concurrent log instances 2009-09-04 20:40:34 +01:00
dm-log.c dm raid1: report flush errors separately in status 2009-12-10 23:52:02 +00:00
dm-mpath.c dm mpath: refactor pg_init 2010-03-06 02:32:18 +00:00
dm-mpath.h
dm-path-selector.c dm: path selector use module refcount directly 2009-04-02 19:55:27 +01:00
dm-path-selector.h dm mpath: add start_io and nr_bytes to path selectors 2009-06-22 10:12:27 +01:00
dm-queue-length.c dm mpath: add queue length load balancer 2009-06-22 10:12:27 +01:00
dm-raid1.c dm raid1: always return error if all legs fail 2010-03-06 02:32:22 +00:00
dm-region-hash.c dm raid1: fix null pointer dereference in suspend 2010-02-16 18:42:58 +00:00
dm-round-robin.c dm mpath: add start_io and nr_bytes to path selectors 2009-06-22 10:12:27 +01:00
dm-service-time.c dm mpath: add service time load balancer 2009-06-22 10:12:28 +01:00
dm-snap-persistent.c dm snapshot: persistent annotate work_queue as on stack 2010-02-16 18:42:51 +00:00
dm-snap-transient.c dm snapshot: move cow ref from exception store to snap core 2009-12-10 23:52:12 +00:00
dm-snap.c dm snapshot: use merge origin if snapshot invalid 2009-12-10 23:52:36 +00:00
dm-stripe.c dm stripe: avoid divide by zero with invalid stripe count 2010-02-16 18:42:47 +00:00
dm-sysfs.c dm: sysfs revert add empty release function to avoid debug warning 2010-02-16 18:43:04 +00:00
dm-table.c dm table: remove dm_get from dm_table_get_md 2010-03-06 02:29:52 +00:00
dm-target.c dm target: remove struct tt_internal 2009-04-02 19:55:28 +01:00
dm-uevent.c dm table: remove dm_get from dm_table_get_md 2010-03-06 02:29:52 +00:00
dm-uevent.h
dm-zero.c
dm.c dm table: remove dm_get from dm_table_get_md 2010-03-06 02:29:52 +00:00
dm.h dm: rename dm_suspended to dm_suspended_md 2009-12-10 23:52:26 +00:00
faulty.c md: add MODULE_DESCRIPTION for all md related modules. 2009-12-14 12:51:41 +11:00
Kconfig md: revise Kconfig help for MD_MULTIPATH 2009-12-14 12:51:41 +11:00
linear.c block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors 2010-02-26 13:58:08 +01:00
linear.h md/linear: use call_rcu to free obsolete 'conf' structures. 2009-06-18 08:49:42 +10:00
Makefile md: drivers/md/unroll.pl replaced with awk analog 2009-10-16 16:25:19 +11:00
md.c md: fix some lockdep issues between md and sysfs. 2010-02-10 11:26:09 +11:00
md.h raid: improve MD/raid10 handling of correctable read errors. 2009-12-14 12:51:41 +11:00
mktables.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
multipath.c block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors 2010-02-26 13:58:08 +01:00
multipath.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid0.c block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors 2010-02-26 13:58:08 +01:00
raid0.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
raid1.c block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors 2010-02-26 13:58:08 +01:00
raid1.h md/raid1: add takeover support for raid5->raid1 2009-12-14 12:51:41 +11:00
raid5.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2010-03-03 07:34:18 -08:00
raid5.h percpu: add __percpu sparse annotations to what's left 2010-02-17 11:17:38 +09:00
raid6algos.c md: add MODULE_DESCRIPTION for all md related modules. 2009-12-14 12:51:41 +11:00
raid6altivec.uc md: drivers/md/unroll.pl replaced with awk analog 2009-10-16 16:25:19 +11:00
raid6int.uc md: drivers/md/unroll.pl replaced with awk analog 2009-10-16 16:25:19 +11:00
raid6mmx.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6recov.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6sse1.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6sse2.c md/raid6: move raid6 data processing to raid6_pq.ko 2009-03-31 15:09:39 +11:00
raid6x86.h md: fix typo in FSF address 2009-03-31 14:57:37 +11:00
raid10.c block: Rename blk_queue_max_sectors to blk_queue_max_hw_sectors 2010-02-26 13:58:08 +01:00
raid10.h md: remove mddev_to_conf "helper" macro 2009-06-16 16:54:21 +10:00
unroll.awk md: drivers/md/unroll.pl replaced with awk analog 2009-10-16 16:25:19 +11:00