[BLOCK] reimplement handling of barrier request
authorTejun Heo <htejun@gmail.com>
Fri, 6 Jan 2006 08:51:03 +0000 (09:51 +0100)
committerJens Axboe <axboe@suse.de>
Fri, 6 Jan 2006 08:51:03 +0000 (09:51 +0100)
Reimplement handling of barrier requests.

* Flexible handling to deal with various capabilities of
  target devices.
* Retry support for falling back.
* Tagged queues which don't support ordered tag can do ordered.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>

No differences found