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9a3e1101b8
linux/drivers/md
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NeilBrown 9a3e1101b8 md/raid5: detect and handle replacements during recovery. 
During recovery we want to write to the replacement but not
the original.  So we have two new flags
 - R5_NeedReplace if this stripe has a replacement that needs to
   be written at some stage
 - R5_WantReplace if NeedReplace, and the data is available, and
   a 'sync' has been requested on this stripe.

We also distinguish between 'sync and replace' which need to read
all other devices, and 'replace' which only needs to read the
devices being replaced.

Note that during resync we always write to any replacement device.
It might not need to be written to, but as we don't read to compare,
we have to write to be sure.

Signed-off-by: NeilBrown <neilb@suse.de>
2011-12-23 10:17:53 +11:00
..
persistent-data device-mapper: using EXPORT_SYBOL in dm-space-map-checker.c needs export.h 2011-11-07 10:29:10 -08:00
bitmap.c md/bitmap: be more consistent when setting new bits in memory bitmap. 2011-12-23 10:17:51 +11:00
bitmap.h md: remove typedefs: mddev_t -> struct mddev 2011-10-11 16:47:53 +11:00
dm-bio-record.h
dm-bufio.c device-mapper: dm-bufio.c needs to include module.h 2011-11-07 10:29:10 -08:00
dm-bufio.h dm: add bufio 2011-10-31 20:19:09 +00:00
dm-crypt.c dm crypt: always disable discard_zeroes_data 2011-09-25 23:26:21 +01:00
dm-delay.c
dm-exception-store.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-exception-store.h
dm-flakey.c dm: flakey fix corrupt_bio_byte error path 2011-09-25 23:26:15 +01:00
dm-io.c dm io: flush cpu cache with vmapped io 2011-08-02 12:32:01 +01:00
dm-ioctl.c dm table: add immutable feature 2011-10-31 20:19:04 +00:00
dm-kcopyd.c dm kcopyd: add dm_kcopyd_zero to zero an area 2011-10-31 20:18:58 +00:00
dm-linear.c
dm-log-userspace-base.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
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: use vzalloc 2011-08-02 12:32:02 +01:00
dm-mpath.c dm table: share target argument parsing functions 2011-08-02 12:32:04 +01:00
dm-mpath.h
dm-path-selector.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-path-selector.h
dm-queue-length.c atomic: use <linux/atomic.h> 2011-07-26 16:49:47 -07:00
dm-raid1.c dm kcopyd: return client directly and not through a pointer 2011-05-29 13:03:13 +01:00
dm-raid.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
dm-region-hash.c Fix common misspellings 2011-03-31 11:26:23 -03:00
dm-round-robin.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-service-time.c md: Add module.h to all files using it implicitly 2011-10-31 19:31:18 -04:00
dm-snap-persistent.c md: Add in export.h for files using EXPORT_SYMBOL 2011-10-31 19:31:19 -04:00
dm-snap-transient.c md: Add in export.h for files using EXPORT_SYMBOL 2011-10-31 19:31:19 -04:00
dm-snap.c dm snapshot: skip reading origin when overwriting complete chunk 2011-08-02 12:32:04 +01:00
dm-stripe.c dm stripe: implement merge method 2011-03-24 13:54:35 +00:00
dm-sysfs.c
dm-table.c dm table: add immutable feature 2011-10-31 20:19:04 +00:00
dm-target.c
dm-thin-metadata.c dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
dm-thin-metadata.h dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
dm-thin.c dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
dm-uevent.c md: Add in export.h for files using EXPORT_SYMBOL 2011-10-31 19:31:19 -04:00
dm-uevent.h
dm-zero.c
dm.c Merge branch 'for-3.2/core' of git://git.kernel.dk/linux-block 2011-11-04 17:06:58 -07:00
dm.h dm table: add immutable feature 2011-10-31 20:19:04 +00:00
faulty.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
Kconfig dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
linear.c md/linear: fix hot-add of devices to linear arrays. 2011-12-23 09:56:55 +11:00
linear.h md/linear: typedef removal: linear_conf_t -> struct linear_conf 2011-10-11 16:48:54 +11:00
Makefile dm: add thin provisioning target 2011-10-31 20:21:18 +00:00
md.c md: create externally visible flags for supporting hot-replace. 2011-12-23 10:17:51 +11:00
md.h md: create externally visible flags for supporting hot-replace. 2011-12-23 10:17:51 +11:00
multipath.c md: change hot_remove_disk to take an rdev rather than a number. 2011-12-23 10:17:51 +11:00
multipath.h md/multipath: typedef removal: multipath_conf_t -> struct mpconf 2011-10-11 16:48:57 +11:00
raid0.c Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux 2011-11-06 19:44:47 -08:00
raid0.h md/raid0: typedef removal: raid0_conf_t -> struct r0conf 2011-10-11 16:48:59 +11:00
raid1.c md: change hot_remove_disk to take an rdev rather than a number. 2011-12-23 10:17:51 +11:00
raid1.h md: add proper write-congestion reporting to RAID1 and RAID10. 2011-10-11 16:50:01 +11:00
raid5.c md/raid5: detect and handle replacements during recovery. 2011-12-23 10:17:53 +11:00
raid5.h md/raid5: detect and handle replacements during recovery. 2011-12-23 10:17:53 +11:00
raid10.c md: change hot_remove_disk to take an rdev rather than a number. 2011-12-23 10:17:51 +11:00
raid10.h md: add proper write-congestion reporting to RAID1 and RAID10. 2011-10-11 16:50:01 +11:00