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authorNeilBrown <neilb@suse.de>2008-02-06 01:39:52 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2008-02-06 10:41:18 -0800
commitc620727779f7cc8ea96efb71f0651a26349e59c1 (patch)
tree777abdad9c9ef10cb4df5c0efc736e6c64851ed8 /Documentation/drivers
parentc303da6d713b87b7b3f999f5acce8ecc76ff1adb (diff)
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>
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