From: Minwoo Im <minwoo.im.dev@gmail.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, Minwoo Im <dn3108@gmail.com>,
Minwoo Im <minwoo.im.dev@gmail.com>
Subject: [PATCH] null_blk: add an usage for shared tags in documentation
Date: Tue, 7 Nov 2017 23:18:27 +0900 [thread overview]
Message-ID: <1510064307-20916-1-git-send-email-minwoo.im.dev@gmail.com> (raw)
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.
--
2.7.4
next reply other threads:[~2017-11-07 14:18 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-11-07 14:18 Minwoo Im [this message]
2017-11-07 16:24 ` [PATCH] null_blk: add an usage for shared tags in documentation Jens Axboe
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