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| author |   Jens Axboe <axboe@fb.com> | 2014-06-16 11:40:25 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-06-16 11:40:25 -0600 |
| commit | d891fa70876b37941a5c5bed813e73beb53ebcf7 (patch) | |
| tree | 5dbbaf0e783d42042bd05fff3e2d3fa844d1ba6c /drivers/block/null_blk.c | |
| parent | blk-mq: merge blk_mq_drain_queue and __blk_mq_drain_queue (diff) | |
| download | linux-dev-d891fa70876b37941a5c5bed813e73beb53ebcf7.tar.xz linux-dev-d891fa70876b37941a5c5bed813e73beb53ebcf7.zip | |
null_blk: fix softirq completions for queue_mode == 1
Only blk-mq completions have payload attached to the request, for
request_fn mode we have stored it in req->special. This fixes an
oops with queue_mode=1 and softirq completions.
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/block/null_blk.c')
| -rw-r--r-- | drivers/block/null_blk.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index f87c4c4c1c41..a3b042c4d448 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -227,7 +227,10 @@ static void null_cmd_end_timer(struct nullb_cmd *cmd) static void null_softirq_done_fn(struct request *rq) { - end_cmd(blk_mq_rq_to_pdu(rq)); + if (queue_mode == NULL_Q_MQ) + end_cmd(blk_mq_rq_to_pdu(rq)); + else + end_cmd(rq->special); } static inline void null_handle_cmd(struct nullb_cmd *cmd) |