OpenE2K
/
linux
6
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity
linux/drivers/md
History
NeilBrown 856e08e237 md/raid10: avoid reading from known bad blocks - part 1 
This patch just covers the basic read path:
 1/ read_balance needs to check for badblocks, and return not only
    the chosen slot, but also how many good blocks are available
    there.
 2/ read submission must be ready to issue multiple reads to
    different devices as different bad blocks on different devices
    could mean that a single large read cannot be served by any one
    device, but can still be served by the array.
    This requires keeping count of the number of outstanding requests
    per bio.  This count is stored in 'bi_phys_segments'

On read error we currently just fail the request if another target
cannot handle the whole request.  Next patch refines that a bit.

Signed-off-by: NeilBrown <neilb@suse.de>
 		2011-07-28 11:39:23 +10:00
..
Kconfig dm: add flakey target 2011-03-24 13:54:24 +00:00
Makefile dm: add flakey target 2011-03-24 13:54:24 +00:00
bitmap.c MD bitmap: Revert DM dirty log hooks 2011-07-27 11:00:37 +10:00
bitmap.h MD bitmap: Revert DM dirty log hooks 2011-07-27 11:00:37 +10:00
dm-bio-record.h
…
dm-crypt.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/agk/linux-2.6-dm 2011-03-25 20:51:44 -07:00
dm-delay.c dm: convert workqueues to alloc_ordered 2011-01-13 19:59:57 +00:00
dm-exception-store.c dm snapshot: test chunk size against both origin and snapshot 2010-08-12 04:13:51 +01:00
dm-exception-store.h dm snapshot: test chunk size against both origin and snapshot 2010-08-12 04:13:51 +01:00
dm-flakey.c dm: add flakey target 2011-03-24 13:54:24 +00:00
dm-io.c dm io: use fixed initial mempool size 2011-05-29 13:03:09 +01:00
dm-ioctl.c dm ioctl: add flag to wipe buffers for secure data 2011-03-24 13:54:30 +00:00
dm-kcopyd.c dm kcopyd: return client directly and not through a pointer 2011-05-29 13:03:13 +01:00
dm-linear.c dm: use dm_target_offset macro 2010-08-12 04:14:11 +01:00
dm-log-userspace-base.c dm log userspace: add version number to comms 2011-01-13 19:59:52 +00:00
dm-log-userspace-transfer.c netlink: kill eff_cap from struct netlink_skb_parms 2011-03-03 13:32:07 -08:00
dm-log-userspace-transfer.h
…
dm-log.c dm io: use fixed initial mempool size 2011-05-29 13:03:09 +01:00
dm-mpath.c dm mpath: do not fail paths after integrity errors 2011-05-29 13:02:55 +01:00
dm-mpath.h
…
dm-path-selector.c
…
dm-path-selector.h
…
dm-queue-length.c
…
dm-raid.c md/dm - remove remains of plug_fn callback. 2011-04-18 18:25:41 +10:00
dm-raid1.c dm kcopyd: return client directly and not through a pointer 2011-05-29 13:03:13 +01:00
dm-region-hash.c Fix common misspellings 2011-03-31 11:26:23 -03:00
dm-round-robin.c
…
dm-service-time.c include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h 2010-03-30 22:02:32 +09:00
dm-snap-persistent.c dm io: use fixed initial mempool size 2011-05-29 13:03:09 +01:00
dm-snap-transient.c
…
dm-snap.c dm kcopyd: return client directly and not through a pointer 2011-05-29 13:03:13 +01:00
dm-stripe.c dm stripe: implement merge method 2011-03-24 13:54:35 +00:00
dm-sysfs.c Driver core: Constify struct sysfs_ops in struct kobj_type 2010-03-07 17:04:49 -08:00
dm-table.c dm table: reject devices without request fns 2011-05-29 13:02:52 +01:00
dm-target.c dm: error return error for discards 2010-08-12 04:14:14 +01:00
dm-uevent.c
…
dm-uevent.h
…
dm-zero.c dm: zero silently drop discards 2010-08-12 04:14:12 +01:00
dm.c block: fix non-atomic access to genhd inflight structures 2011-03-22 08:35:35 +01:00
dm.h block: Require subsystems to explicitly allocate bio_set integrity mempool 2011-03-17 11:11:05 +01:00
faulty.c Fix common misspellings 2011-03-31 11:26:23 -03:00
linear.c block: Require subsystems to explicitly allocate bio_set integrity mempool 2011-03-17 11:11:05 +01:00
linear.h
…
md.c md: make it easier to wait for bad blocks to be acknowledged. 2011-07-28 11:31:48 +10:00
md.h md: make it easier to wait for bad blocks to be acknowledged. 2011-07-28 11:31:48 +10:00
multipath.c md: make error_handler functions more uniform and correct. 2011-05-11 14:38:44 +10:00
multipath.h md/multipath: discard ->working_disks in favour of ->degraded 2011-05-11 14:38:02 +10:00
raid0.c block: Require subsystems to explicitly allocate bio_set integrity mempool 2011-03-17 11:11:05 +01:00
raid0.h md: fix handling of array level takeover that re-arranges devices. 2010-06-24 13:33:24 +10:00
raid1.c md/raid1: factor several functions out or raid1d() 2011-07-28 11:38:13 +10:00
raid1.h md/raid1: Handle write errors by updating badblock log. 2011-07-28 11:32:41 +10:00
raid5.c md/raid5: Clear bad blocks on successful write. 2011-07-28 11:39:23 +10:00
raid5.h md/raid5: Clear bad blocks on successful write. 2011-07-28 11:39:23 +10:00
raid10.c md/raid10: avoid reading from known bad blocks - part 1 2011-07-28 11:39:23 +10:00
raid10.h md/raid10: avoid reading from known bad blocks - part 1 2011-07-28 11:39:23 +10:00