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(parent: 96c3fd1) | patch
md/raid10: preferentially read from replacement device if possible.
authorNeilBrown <neilb@suse.de>
Thu, 22 Dec 2011 23:17:54 +0000 (10:17 +1100)
committerNeilBrown <neilb@suse.de>
Thu, 22 Dec 2011 23:17:54 +0000 (10:17 +1100)
commitabbf098e6e1e23d5d247b9eaaf325e67f67b0328
treee2d8dc88c99ecc14d6d87596d95b3de9b9dc87c9tree | snapshot
parent96c3fd1f3802371610c620cff03f9d825707e80ecommit | diff
md/raid10: preferentially read from replacement device if possible.

When reading (for array reads, not for recovery etc) we read from the
replacement device if it has recovered far enough.
This requires storing the chosen rdev in the 'r10_bio' so we can make
sure to drop the ref on the right device when the read finishes.

Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/raid10.c diff | blob | history
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