]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
md: allow a maximum extent to be set for resyncing
authorNeilBrown <neilb@suse.de>
Wed, 6 Feb 2008 09:39:52 +0000 (01:39 -0800)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Wed, 6 Feb 2008 18:41:18 +0000 (10:41 -0800)
commitc620727779f7cc8ea96efb71f0651a26349e59c1
tree777abdad9c9ef10cb4df5c0efc736e6c64851ed8
parentc303da6d713b87b7b3f999f5acce8ecc76ff1adb
md: allow a maximum extent to be set for resyncing

This allows userspace to control resync/reshape progress and synchronise it
with other activities, such as shared access in a SAN, or backing up critical
sections during a tricky reshape.

Writing a number of sectors (which must be a multiple of the chunk size if
such is meaningful) causes a resync to pause when it gets to that point.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Documentation/md.txt
drivers/md/md.c
drivers/md/raid1.c
drivers/md/raid10.c
drivers/md/raid5.c
include/linux/raid/md_k.h