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| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-10-14 00:26:28 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-13 10:52:37 -0600 |
| commit | 23c4490d2b7f78a855f9c5675e26735fb61afe84 (patch) | |
| tree | 6709092ab74eed57edb1373e384e9dd94607862b | |
| parent | cdd094fd0ad750c94ccaa5b2ee84fd8264f6f433 (diff) | |
| download | linux-23c4490d2b7f78a855f9c5675e26735fb61afe84.tar.bz2 | |
null_blk: update usage hints for submit_queues
update the range of submits_queues, and correct usage hints.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | Documentation/block/null_blk.txt | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt index 3140dbd860d8..1f8d92c70458 100644 --- a/Documentation/block/null_blk.txt +++ b/Documentation/block/null_blk.txt @@ -55,10 +55,10 @@ irqmode=[0-2]: Default: 1-Soft-irq completion_nsec=[ns]: Default: 10.000ns Combined with irqmode=2 (timer). The time each completion event must wait. -submit_queues=[0..nr_cpus]: +submit_queues=[1..nr_cpus]: The number of submission queues attached to the device driver. If unset, it - defaults to 1 on single-queue and bio-based instances. For multi-queue, - it is ignored when use_per_node_hctx module parameter is 1. + defaults to 1. For multi-queue, it is ignored when use_per_node_hctx module + parameter is 1. hw_queue_depth=[0..qdepth]: Default: 64 The hardware queue depth of the device. |