From: Lukas Czerner <lczerner@redhat.com>
Date: Tue, 24 May 2011 22:28:07 +0000 (-0400)
Subject: ext4: protect bb_first_free in ext4_trim_all_free() with group lock
X-Git-Tag: v3.0-rc1~140^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=28739eea9cd42598b632972f5cc64a458c5d40b3;p=pandora-kernel.git

ext4: protect bb_first_free in ext4_trim_all_free() with group lock

We should protect reading bd_info->bb_first_free with the group lock
because otherwise we might miss some free blocks. This is not a big deal
at all, but the change to do right thing is really simple, so lets do
that.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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