From: NeilBrown <neilb@suse.de>
Date: Thu, 14 Nov 2013 04:16:15 +0000 (+1100)
Subject: md/raid5.c: add proper locking to error path of raid5_start_reshape.
X-Git-Tag: v3.13-rc1~31^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ba8805b97320416e7c5bb8f55d2bd06d5c319e7d;p=pandora-kernel.git

md/raid5.c: add proper locking to error path of raid5_start_reshape.

If raid5_start_reshape errors out, we need to reset all the fields
that were updated (not just some), and need to use the seq_counter
to ensure make_request() doesn't use an inconsitent state.

Signed-off-by: NeilBrown <neilb@suse.de>
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