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7bfa19f274
linux/drivers/md
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NeilBrown 7bfa19f274 [PATCH] md: allow md to update multiple superblocks in parallel. 
currently, md updates all superblocks (one on each device) in series.  It
waits for one write to complete before starting the next.  This isn't a big
problem as superblock updates don't happen that often.

However it is neater to do it in parallel, and if the drives in the array have
gone to "sleep" after a period of idleness, then waking them is parallel is
faster (and someone else should be worrying about power drain).

Futher, we will need parallel superblock updates for a future patch which
keeps the intent-logging bitmap near the superblock.

Also remove the silly code that retired superblock updates 100 times.  This
simply never made sense.

Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-21 19:07:47 -07:00
..
raid6test Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
bitmap.c [PATCH] md: allow md intent bitmap to be stored near the superblock. 2005-06-21 19:07:47 -07:00
dm-bio-list.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-bio-record.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-crypt.c [PATCH] mm: use __GFP_NOMEMALLOC 2005-05-01 08:58:37 -07:00
dm-emc.c [PATCH] device-mapper dm-emc: Fix a memset 2005-05-05 16:36:46 -07:00
dm-exception-store.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-hw-handler.c [PATCH] device-mapper: Some missing statics 2005-05-05 16:36:46 -07:00
dm-hw-handler.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-io.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-io.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-ioctl.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-linear.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-log.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-log.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-mpath.c [PATCH] dm: Handle READA requests in dm-mpath.c 2005-06-08 16:21:14 -07:00
dm-mpath.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-path-selector.c [PATCH] device-mapper: Some missing statics 2005-05-05 16:36:46 -07:00
dm-path-selector.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-raid1.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-round-robin.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-snap.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-snap.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-stripe.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-table.c [PATCH] device-mapper: Some missing statics 2005-05-05 16:36:46 -07:00
dm-target.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dm-zero.c [PATCH] device-mapper: Some missing statics 2005-05-05 16:36:46 -07:00
dm.c [PATCH] device-mapper: tidy dm_suspend 2005-05-05 16:36:46 -07:00
dm.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
faulty.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kcopyd.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
kcopyd.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
linear.c [PATCH] md: fix splitting of md/linear request that cross a device boundary 2005-05-17 07:59:11 -07:00
Makefile [PATCH] md: optimised resync using Bitmap based intent logging 2005-06-21 19:07:43 -07:00
md.c [PATCH] md: allow md to update multiple superblocks in parallel. 2005-06-21 19:07:47 -07:00
mktables.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
multipath.c [PATCH] md: set the unplug_fn and issue_flush_fn for md devices *after* committed to creation 2005-05-17 07:59:12 -07:00
raid0.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid1.c [PATCH] md: fix deadlock due to md thread processing delayed requests. 2005-06-21 19:07:46 -07:00
raid5.c [PATCH] md: fix deadlock due to md thread processing delayed requests. 2005-06-21 19:07:46 -07:00
raid6.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6algos.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6altivec.uc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6int.uc Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6main.c [PATCH] md: fix deadlock due to md thread processing delayed requests. 2005-06-21 19:07:46 -07:00
raid6mmx.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6recov.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6sse1.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6sse2.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid6x86.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
raid10.c [PATCH] md: fix deadlock due to md thread processing delayed requests. 2005-06-21 19:07:46 -07:00
unroll.pl Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
xor.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00