| commit | 75afb352991ff1cd3cf5955bfe611de6d83a0c87 | [log] [tgz] |
|---|---|---|
| author | Jun'ichi Nomura <j-nomura@ce.jp.nec.com> | Sat Sep 21 13:57:47 2013 -0600 |
| committer | Jens Axboe <axboe@kernel.dk> | Sat Sep 21 13:57:47 2013 -0600 |
| tree | 2873c9fa5c098c4dd5134f395207af9463cc21d9 | |
| parent | 7652113c2f508b1c8176640dcd034730fe79bc48 [diff] |
block: Add nr_bios to block_rq_remap tracepoint Adding the number of bios in a remapped request to 'block_rq_remap' tracepoint. Request remapper clones bios in a request to track the completion status of each bio. So the number of bios can be useful information for investigation. Related discussions: http://www.redhat.com/archives/dm-devel/2013-August/msg00084.html http://www.redhat.com/archives/dm-devel/2013-September/msg00024.html Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Acked-by: Mike Snitzer <snitzer@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Jens Axboe <axboe@kernel.dk>