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| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-08-03 00:27:37 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-08-07 15:15:38 -0600 |
| commit | d424681cc9ebaaeac2b6af842d2f497ba7ccf349 (patch) | |
| tree | c28044f1134edf417ef7e7ba6224c14242932175 | |
| parent | 558ab300c8f2e8843cbd2f30b358815b01b790e1 (diff) | |
| download | blackbird-op-linux-d424681cc9ebaaeac2b6af842d2f497ba7ccf349.tar.gz blackbird-op-linux-d424681cc9ebaaeac2b6af842d2f497ba7ccf349.zip | |
null_blk: make sure submit_queues > 0
set submit_queues to 1 by default, and make sure it's value > 0.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | drivers/block/null_blk.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index 72e2bc5017d4..f1d0ca020999 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -65,7 +65,7 @@ enum { NULL_Q_MQ = 2, }; -static int submit_queues; +static int submit_queues = 1; module_param(submit_queues, int, S_IRUGO); MODULE_PARM_DESC(submit_queues, "Number of submission queues"); @@ -849,7 +849,7 @@ static int __init null_init(void) } } else if (submit_queues > nr_cpu_ids) submit_queues = nr_cpu_ids; - else if (!submit_queues) + else if (submit_queues <= 0) submit_queues = 1; if (queue_mode == NULL_Q_MQ && shared_tags) { |
