From c141b2928fe20396a9ecdec85526e4b66ae96c90 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Tue, 3 Mar 2009 14:48:37 -0500
Subject: [PATCH] xfs: only issues a cache flush on unmount if barriers are
 enabled

Currently we unconditionally issue a flush from xfs_free_buftarg, but
since 2.6.29-rc1 this gives a warning in the style of

	end_request: I/O error, dev vdb, sector 0

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Felix Blyakher <felixb@sgi.com>
---
Reading git-format-patch failed