diff options
Diffstat (limited to 'drivers/md')
| -rw-r--r-- | drivers/md/dm.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/md/dm.c b/drivers/md/dm.c index 02db9183ca0..77e6eff41ca 100644 --- a/drivers/md/dm.c +++ b/drivers/md/dm.c | |||
| @@ -740,8 +740,14 @@ static void rq_completed(struct mapped_device *md, int rw, int run_queue) | |||
| 740 | if (!md_in_flight(md)) | 740 | if (!md_in_flight(md)) |
| 741 | wake_up(&md->wait); | 741 | wake_up(&md->wait); |
| 742 | 742 | ||
| 743 | /* | ||
| 744 | * Run this off this callpath, as drivers could invoke end_io while | ||
| 745 | * inside their request_fn (and holding the queue lock). Calling | ||
| 746 | * back into ->request_fn() could deadlock attempting to grab the | ||
| 747 | * queue lock again. | ||
| 748 | */ | ||
| 743 | if (run_queue) | 749 | if (run_queue) |
| 744 | blk_run_queue(md->queue); | 750 | blk_run_queue_async(md->queue); |
| 745 | 751 | ||
| 746 | /* | 752 | /* |
| 747 | * dm_put() must be at the end of this function. See the comment above | 753 | * dm_put() must be at the end of this function. See the comment above |