From: Eric Sandeen <sandeen@sandeen.net>
Date: Fri, 18 Jul 2008 07:12:18 +0000 (+1000)
Subject: [XFS] Disable queue flag test in barrier check.
X-Git-Tag: v2.6.27-rc2~91^2~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=deeb5912db12e8b7ccf3f4b1afaad60bc29abed9;p=pandora-kernel.git

[XFS] Disable queue flag test in barrier check.

md raid1 can pass down barriers, but does not set an ordered flag on the
queue, so xfs does not even attempt a barrier write, and will never use
barriers on these block devices.

Remove the flag check and just let the barrier write test determine
barrier support.

A possible risk here is that if something does not set an ordered flag and
also does not properly return an error on a barrier write... but if it's
any consolation jbd/ext3/reiserfs never test the flag, and don't even do a
test write, they just disable barriers the first time an actual journal
barrier write fails.

SGI-PV: 983924

SGI-Modid: xfs-linux-melb:xfs-kern:31377a

Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
---

Reading git-diff-tree failed