From: Chris Mason <chris.mason@oracle.com>
Date: Thu, 1 Oct 2009 16:29:10 +0000 (-0400)
Subject: Btrfs: take i_mutex before generic_write_checks
X-Git-Tag: v2.6.32-rc3~13^2~2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab93dbecfba72bbc04b7036343d180aaff1b61a3;p=pandora-kernel.git

Btrfs: take i_mutex before generic_write_checks

btrfs_file_write was incorrectly calling generic_write_checks without
taking i_mutex.  This lead to problems with racing around i_size when
doing O_APPEND writes.

The fix here is to move i_mutex higher.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
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