diff options
| author | Matias Bjorling <m@bjorling.me> | 2013-12-18 13:41:44 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2013-12-19 08:09:43 -0700 |
| commit | d15ee6b1a43afbe1a6cece3bd8d336a9d5cb7060 (patch) | |
| tree | 6a64d575af71bc7b83076f20ff1a60f33081c020 /drivers/block | |
| parent | 2d263a7856cbaf26dd89b671e2161c4a49f8461b (diff) | |
null_blk: warning on ignored submit_queues param
Let the user know when the number of submission queues are being
ignored.
Signed-off-by: Matias Bjorling <m@bjorling.me>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/null_blk.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index f0aeb2a7a9c..8f2e7c330d6 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -590,9 +590,12 @@ static int __init null_init(void) } #endif - if (queue_mode == NULL_Q_MQ && use_per_node_hctx) + if (queue_mode == NULL_Q_MQ && use_per_node_hctx) { + if (submit_queues > 0) + pr_warn("null_blk: submit_queues param is set to %u.", + nr_online_nodes); submit_queues = nr_online_nodes; - else if (submit_queues > nr_cpu_ids) + } else if (submit_queues > nr_cpu_ids) submit_queues = nr_cpu_ids; else if (!submit_queues) submit_queues = 1; |