diff options
author | David S. Miller <davem@davemloft.net> | 2012-11-25 12:49:17 -0500 |
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committer | David S. Miller <davem@davemloft.net> | 2012-11-25 12:49:17 -0500 |
commit | 24bc518a6888e4c97add5a5ebbff11c1ccac219f (patch) | |
tree | d125270f4e8432cebcbc8af9079dece51dd798a0 /block/blk-exec.c | |
parent | b3e3bd71b429c04490d6a57671f2bbe2121d4f5a (diff) | |
parent | 194d9831f0419b5125dc94ec0ece4434d8ef74f0 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Conflicts:
drivers/net/wireless/iwlwifi/pcie/tx.c
Minor iwlwifi conflict in TX queue disabling between 'net', which
removed a bogus warning, and 'net-next' which added some status
register poking code.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'block/blk-exec.c')
-rw-r--r-- | block/blk-exec.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/block/blk-exec.c b/block/blk-exec.c index 8b6dc5bd4dd0..f71eac35c1b9 100644 --- a/block/blk-exec.c +++ b/block/blk-exec.c @@ -52,11 +52,17 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, rq_end_io_fn *done) { int where = at_head ? ELEVATOR_INSERT_FRONT : ELEVATOR_INSERT_BACK; + bool is_pm_resume; WARN_ON(irqs_disabled()); rq->rq_disk = bd_disk; rq->end_io = done; + /* + * need to check this before __blk_run_queue(), because rq can + * be freed before that returns. + */ + is_pm_resume = rq->cmd_type == REQ_TYPE_PM_RESUME; spin_lock_irq(q->queue_lock); @@ -71,7 +77,7 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk, __elv_add_request(q, rq, where); __blk_run_queue(q); /* the queue is stopped so it won't be run */ - if (rq->cmd_type == REQ_TYPE_PM_RESUME) + if (is_pm_resume) q->request_fn(q); spin_unlock_irq(q->queue_lock); } |