From: David Chinner <dgc@sgi.com>
Date: Mon, 14 May 2007 08:24:23 +0000 (+1000)
Subject: [XFS] Barriers need to be dynamically checked and switched off
X-Git-Tag: v2.6.24-rc1~492^2~57
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0bfefc46dc028df60120acdb92062169c9328769;p=pandora-kernel.git

[XFS] Barriers need to be dynamically checked and switched off

If the underlying block device suddenly stops supporting barriers, we need
to handle the -EOPNOTSUPP error in a sane manner rather than shutting
down the filesystem. If we get this error, clear the barrier flag, reissue
the I/O, and tell the world bad things are occurring.

SGI-PV: 964544
SGI-Modid: xfs-linux-melb:xfs-kern:28568a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Tim Shimmin <tes@sgi.com>
---

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