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| author | weiping zhang <zhangweiping@didichuxing.com> | 2017-10-13 18:26:54 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-13 18:52:39 +0200 |
| commit | fc186311f2233bb3f69f22b96babdf16a57c88a9 (patch) | |
| tree | 97adaec4c4f9229a959a4e262309ce5bbe5eeda0 | |
| parent | null_blk: update usage hints for submit_queues (diff) | |
| download | linux-fc186311f2233bb3f69f22b96babdf16a57c88a9.tar.xz linux-fc186311f2233bb3f69f22b96babdf16a57c88a9.zip | |
null_blk: add usage hints for no_sched
This parameter provide an option to disable io scheduler when nullb*
in multi-queue mode.
Signed-off-by: weiping zhang <zhangweiping@didichuxing.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | Documentation/block/null_blk.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt index 1f8d92c70458..b7161c8e70f2 100644 --- a/Documentation/block/null_blk.txt +++ b/Documentation/block/null_blk.txt @@ -73,3 +73,7 @@ use_per_node_hctx=[0/1]: Default: 0 use_lightnvm=[0/1]: Default: 0 Register device with LightNVM. Requires blk-mq and CONFIG_NVM to be enabled. + +no_sched=[0/1]: Default: 0 + 0: nullb* use default blk-mq io scheduler. + 1: nullb* doesn't use io scheduler. |