On 11/07/2017 07:18 AM, Minwoo Im wrote:
> add usage explanation for a shared_tags of
> commit 82f402fefa50f1675bf918bcd009981bd6b30ac8
> ("null_blk: add support for shared tags") to this documentation.
>
> Signed-off-by: Minwoo Im <minwoo.im.dev@xxxxxxxxx>
> ---
> Documentation/block/null_blk.txt | 5 +++++
> 1 file changed, 5 insertions(+)
>
> diff --git a/Documentation/block/null_blk.txt b/Documentation/block/null_blk.txt
> index b7161c8..e1d1aa9 100644
> --- a/Documentation/block/null_blk.txt
> +++ b/Documentation/block/null_blk.txt
> @@ -77,3 +77,8 @@ use_lightnvm=[0/1]: Default: 0
> no_sched=[0/1]: Default: 0
> 0: nullb* use default blk-mq io scheduler.
> 1: nullb* doesn't use io scheduler.
> +
> +shared_tags=[0/1]: Default: 0
> + 0: Tag set is not shared.
> + 1: Tag set shared between devices for blk-mq.
> + Requires nr_devices to be bigger than 1.
I have added this, but reworded slightly.
--
Jens Axboe
