diff options
| author | Bart Van Assche <bart.vanassche@sandisk.com> | 2016-08-31 15:17:49 -0700 |
|---|---|---|
| committer | Mister Oyster <oysterized@gmail.com> | 2017-04-11 10:58:58 +0200 |
| commit | e6ced5b08f85fd6105ec5040968b55d63258499c (patch) | |
| tree | 32e9ca23cc8317b5f080d5d1231065c563c4d7b2 /drivers | |
| parent | 9eb0a9e063d15cd9cccbf422d71ce1433c3f6112 (diff) | |
dm: mark request_queue dead before destroying the DM device
commit 3b785fbcf81c3533772c52b717f77293099498d3 upstream.
This avoids that new requests are queued while __dm_destroy() is in
progress.
[js] use md->queue instead of non-present helper
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/md/dm.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index f69fed826..a77ef6cac 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c @@ -2323,6 +2323,7 @@ EXPORT_SYMBOL_GPL(dm_device_name); static void __dm_destroy(struct mapped_device *md, bool wait) { + struct request_queue *q = md->queue; struct dm_table *map; might_sleep(); @@ -2333,6 +2334,10 @@ static void __dm_destroy(struct mapped_device *md, bool wait) set_bit(DMF_FREEING, &md->flags); spin_unlock(&_minor_lock); + spin_lock_irq(q->queue_lock); + queue_flag_set(QUEUE_FLAG_DYING, q); + spin_unlock_irq(q->queue_lock); + /* * Take suspend_lock so that presuspend and postsuspend methods * do not race with internal suspend. |