tree 8f96be9db22c086efa3751c5c3a80f0ac6007c9f
parent 56d94a37f63ad1c9da3bc8e903f79d0ee1e80170
author Jens Axboe <jens.axboe@oracle.com> 1204627666 +0100
committer Jens Axboe <jens.axboe@oracle.com> 1204627666 +0100

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>