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| author | Mike Snitzer <snitzer@redhat.com> | 2018-12-11 09:10:26 -0500 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-12-11 07:40:02 -0700 |
| commit | c4576aed8d85d808cd6443bda58393d525207d01 (patch) | |
| tree | 909ff78658e5c82da4e8d575da1457dcaccd79bd /drivers/md/dm.c | |
| parent | 6451fe73fa0f542a49bfacd7205b88a597897f58 (diff) | |
| download | linux-c4576aed8d85d808cd6443bda58393d525207d01.tar.gz linux-c4576aed8d85d808cd6443bda58393d525207d01.tar.bz2 linux-c4576aed8d85d808cd6443bda58393d525207d01.zip | |
dm: fix request-based dm's use of dm_wait_for_completion
The md->wait waitqueue is used by both bio-based and request-based DM.
Commit dbd3bbd291 ("dm rq: leverage blk_mq_queue_busy() to check for
outstanding IO") lost sight of the requirement that
dm_wait_for_completion() must work with all types of DM devices.
Fix md_in_flight() to call the blk-mq or bio-based method accordingly.
Fixes: dbd3bbd291 ("dm rq: leverage blk_mq_queue_busy() to check for outstanding IO")
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/md/dm.c')
| -rw-r--r-- | drivers/md/dm.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 79ad4b3d215c..c414d40d645d 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -646,7 +646,7 @@ static void free_tio(struct dm_target_io *tio) bio_put(&tio->clone); } -static bool md_in_flight(struct mapped_device *md) +static bool md_in_flight_bios(struct mapped_device *md) { int cpu; struct hd_struct *part = &dm_disk(md)->part0; @@ -660,6 +660,14 @@ static bool md_in_flight(struct mapped_device *md) return sum != 0; } +static bool md_in_flight(struct mapped_device *md) +{ + if (queue_is_mq(md->queue)) + return blk_mq_queue_busy(md->queue); + else + return md_in_flight_bios(md); +} + static void start_io_acct(struct dm_io *io) { struct mapped_device *md = io->md; |