From: NeilBrown <neilb@suse.de>
Date: Fri, 22 May 2015 05:20:04 +0000 (+1000)
Subject: md/raid5: Ensure a batch member is not handled prematurely.
X-Git-Tag: omap-for-v4.2/wakeirq-drivers-v2^2~2^2~44^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b15a9dbdbfe72848b7ed4cd3f97fe80daaf99c89;p=pandora-kernel.git

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>
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