SGI-PV: 983394

SGI-Modid: xfs-linux-melb:xfs-kern:31323a
Signed-off-by: NChristoph Hellwig <hch@infradead.org>
Signed-off-by: NTim Shimmin <tes@sgi.com>
Signed-off-by: NLachlan McIlroy <lachlan@sgi.com>