This parameter provide an option to disable io scheduler when nullb* in multi-queue mode. Signed-off-by: weiping zhang <zhangweiping@xxxxxxxxxxxxxxx> --- Documentation/block/null_blk.txt | 4 ++++ 1 file changed, 4 insertions(+) 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. -- 2.14.2
