From cc66b4512cae8df4ed1635483210aabf7690ec27 Mon Sep 17 00:00:00 2001
From: Jens Axboe <jens.axboe@oracle.com>
Date: Tue, 4 Mar 2008 11:47:46 +0100
Subject: [PATCH] block: fix blkdev_issue_flush() not detecting and passing
 EOPNOTSUPP back

This is important to eg dm, that tries to decide whether to stop using
barriers or not.

Tested as working by Anders Henke <anders.henke@1und1.de>

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---
Reading git-format-patch failed