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| author | wuzhouhui <wuzhouhui14@mails.ucas.ac.cn> | 2018-03-22 15:22:38 +0100 |
|---|---|---|
| committer | Mike Snitzer <snitzer@redhat.com> | 2018-12-18 15:02:25 +0100 |
| commit | 935fcc56abc321ca828f2d1fbb732fd478fd3449 (patch) | |
| tree | b991c09b72301111e7ec702fec18b6e03f888a3a | |
| parent | dm rq: remove unused arguments from rq_completed() (diff) | |
| download | linux-935fcc56abc321ca828f2d1fbb732fd478fd3449.tar.xz linux-935fcc56abc321ca828f2d1fbb732fd478fd3449.zip | |
dm mpath: only flush workqueue when needed
The workqueues are shared by many multipath devices, only flush whole
workqueue when necessary. Otherwise, we just flush works as needed.
Signed-off-by: wuzhouhui <wuzhouhui14@mails.ucas.ac.cn>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
| -rw-r--r-- | drivers/md/dm-mpath.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c index d6a66921daf4..2ee5e357a0a7 100644 --- a/drivers/md/dm-mpath.c +++ b/drivers/md/dm-mpath.c @@ -1211,14 +1211,16 @@ static void flush_multipath_work(struct multipath *m) set_bit(MPATHF_PG_INIT_DISABLED, &m->flags); smp_mb__after_atomic(); - flush_workqueue(kmpath_handlerd); + if (atomic_read(&m->pg_init_in_progress)) + flush_workqueue(kmpath_handlerd); multipath_wait_for_pg_init_completion(m); clear_bit(MPATHF_PG_INIT_DISABLED, &m->flags); smp_mb__after_atomic(); } - flush_workqueue(kmultipathd); + if (m->queue_mode == DM_TYPE_BIO_BASED) + flush_work(&m->process_queued_bios); flush_work(&m->trigger_event); } |