From: Alasdair G Kergon <agk@redhat.com>
Date: Tue, 21 Oct 2008 16:44:55 +0000 (+0100)
Subject: dm exception store: refactor zero_area
X-Git-Tag: v2.6.28-rc1~41^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7c9e6c17325fab380fbe9c9787680ff7d4a51abd;p=pandora-kernel.git

dm exception store: refactor zero_area

Use a separate buffer for writing zeroes to the on-disk snapshot
exception store, make the updating of ps->current_area explicit and
refactor the code in preparation for the fix in the next patch.

No functional change.

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