| commit | 7aef2e780b13973ea60aed8c556107dabde6a495 | [log] [tgz] |
|---|---|---|
| author | Jianpeng Ma <majianpeng@gmail.com> | Wed Sep 11 13:21:07 2013 -0600 |
| committer | Jens Axboe <axboe@kernel.dk> | Wed Sep 11 13:21:07 2013 -0600 |
| tree | 5265a24ffeaea32e2cefacf83962764d6d661a36 | |
| parent | 6e4664525b1db28f8c4e1130957f70a94c19213e [diff] |
block: trace all devices plug operation In func blk_queue_bio, if list of plug is empty,it will call blk_trace_plug. If process deal with a single device,it't ok.But if process deal with multi devices,it only trace the first device. Using request_count to judge, it can soleve this problem. In addition, i modify the comment. Signed-off-by: Jianpeng Ma <majianpeng@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>