From: Dmitry Monakhov <dmonakhov@openvz.org>
Date: Wed, 27 Aug 2014 22:33:49 +0000 (-0400)
Subject: ext4: fix incorect journal credits reservation in ext4_zero_range
X-Git-Tag: omap-fixes-against-v3.17-rc3~28^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=69dc9536405213c1d545fcace1fc15c481d00aae;p=pandora-kernel.git

ext4: fix incorect journal credits reservation in ext4_zero_range

Currently we reserve only 4 blocks but in worst case scenario
ext4_zero_partial_blocks() may want to zeroout and convert two
non adjacent blocks.

Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: stable@vger.kernel.org
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