From: Mikulas Patocka <mpatocka@redhat.com>
Date: Tue, 21 Oct 2008 16:44:56 +0000 (+0100)
Subject: dm exception store: fix misordered writes
X-Git-Tag: v2.6.28-rc1~41^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7acedc5b98a2fcff64f00c21110aae7d3ac2f7df;p=pandora-kernel.git

dm exception store: fix misordered writes

We must zero the next chunk on disk *before* writing out the current chunk, not
after.  Otherwise if the machine crashes at the wrong time, the "end of metadata"
marker may be missing.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Cc: stable@kernel.org
---

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