diff mbox

null_blk: add an usage for shared tags in documentation

Message ID 1510064307-20916-1-git-send-email-minwoo.im.dev@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Minwoo Im Nov. 7, 2017, 2:18 p.m. UTC 
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@gmail.com>
---
 Documentation/block/null_blk.txt | 5 +++++
 1 file changed, 5 insertions(+)

Comments

Jens Axboe Nov. 7, 2017, 4:24 p.m. UTC | #1 
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@gmail.com>
> ---
>  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.
diff mbox

Patch

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.