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| author | Josef Bacik <jbacik@fb.com> | 2018-07-03 11:15:00 -0400 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-07-09 09:07:54 -0600 |
| commit | 67b42d0bf7a8fd1ec0cf1acdc9550e688d7c8578 (patch) | |
| tree | f6aab5ca56ab6ba71846d93ff81afd0d34d3a3c1 /block/bio.c | |
| parent | c1c80384c8f47021a01a0cc42894a06bed2b801b (diff) | |
| download | lwn-67b42d0bf7a8fd1ec0cf1acdc9550e688d7c8578.tar.gz lwn-67b42d0bf7a8fd1ec0cf1acdc9550e688d7c8578.zip | |
rq-qos: introduce dio_bio callback
wbt cares only about request completion time, but controllers may need
information that is on the bio itself, so add a done_bio callback for
rq-qos so things like blk-iolatency can use it to have the bio when it
completes.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/bio.c')
| -rw-r--r-- | block/bio.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/block/bio.c b/block/bio.c index 5f84f5c3887b..f3536bfc8298 100644 --- a/block/bio.c +++ b/block/bio.c @@ -32,6 +32,7 @@ #include <trace/events/block.h> #include "blk.h" +#include "blk-rq-qos.h" /* * Test patch to inline a certain number of bi_io_vec's inside the bio @@ -1808,6 +1809,9 @@ again: if (!bio_integrity_endio(bio)) return; + if (bio->bi_disk) + rq_qos_done_bio(bio->bi_disk->queue, bio); + /* * Need to have a real endio function for chained bios, otherwise * various corner cases will break (like stacking block devices that |