Messages in this thread Patch in this message | | | Date | Sat, 19 Sep 2009 00:13:34 +0900 | From | "Jun'ichi Nomura" <> | Subject | [PATCH 3/3] dm: Add a remapping trace to request-based dm |
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Add a remapping trace to request-based dm.
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Alasdair G Kergon <agk@redhat.com> Cc: Li Zefan <lizf@cn.fujitsu.com> --- drivers/md/dm.c | 2 ++ 1 file changed, 2 insertions(+)
Index: linux-2.6.31.work/drivers/md/dm.c =================================================================== --- linux-2.6.31.work.orig/drivers/md/dm.c +++ linux-2.6.31.work/drivers/md/dm.c @@ -1503,6 +1503,8 @@ static void map_request(struct dm_target break; case DM_MAPIO_REMAPPED: /* The target has remapped the I/O so dispatch it */ + trace_block_rq_remap(clone->q, clone, disk_devt(dm_disk(md)), + blk_rq_pos(tio->orig)); dm_dispatch_request(clone); break; case DM_MAPIO_REQUEUE:
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