From: Chris Mason <chris.mason@oracle.com>
Date: Fri, 20 Feb 2009 15:55:10 +0000 (-0500)
Subject: Btrfs: check file pointer in btrfs_sync_file
X-Git-Tag: v2.6.29-rc6~19^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2cfbd50b536c878e58ab3681c4e944fa3d99b415;p=pandora-kernel.git

Btrfs: check file pointer in btrfs_sync_file

fsync can be called by NFS with a null file pointer, and btrfs was
oopsing in this case.

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