]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
md/raid5: Ensure a batch member is not handled prematurely.
authorNeilBrown <neilb@suse.de>
Fri, 22 May 2015 05:20:04 +0000 (15:20 +1000)
committerNeilBrown <neilb@suse.de>
Thu, 28 May 2015 01:35:47 +0000 (11:35 +1000)
commitb15a9dbdbfe72848b7ed4cd3f97fe80daaf99c89
tree6ded7e7742996dea5e05f46802b2cb800fbfa49d
parentd0852df543e5aa7db34c1ad26d053782bcbf48f1
md/raid5: Ensure a batch member is not handled prematurely.

If a stripe is a member of a batch, but not the head, it must
not be handled separately from the rest of the batch.

'clear_batch_ready()' handles this requirement to some
extent but not completely.  If a member is passed to handle_stripe()
a second time it returns '0' indicating the stripe can be handled,
which is wrong.
So add an extra test.

Signed-off-by: NeilBrown <neilb@suse.de>
drivers/md/raid5.c