linux-kernel - [PATCH v2 2/3] blk-mq.c: Rework documention of blk_mq_init_sq

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190416032801.200694-2-marcos.souza.org@gmail.com>
Date:   Tue, 16 Apr 2019 00:28:00 -0300
From:   Marcos Paulo de Souza <marcos.souza.org@...il.com>
To:     linux-kernel@...r.kernel.org, marcos.souza.org@...il.com
Cc:     linux-block@...r.kernel.org, axboe@...nel.dk,
        Chaitanya.Kulkarni@....com
Subject: [PATCH v2 2/3] blk-mq.c: Rework documention of blk_mq_init_sq_queue function

Describing better what the function does, what the arguments are meant for, and
what SQ stands for.

Signed-off-by: Marcos Paulo de Souza <marcos.souza.org@...il.com>
---

 Changes from v1:
 * Change "SQ" to "only one hw_queue (SQ)" in the function signature
 	documentation (suggested by Chaitanya)

 block/blk-mq.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 4a8277a54c03..3f13cfb47cf0 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2675,9 +2675,20 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_tag_set *set)
 }
 EXPORT_SYMBOL(blk_mq_init_queue);
 
-/*
- * Helper for setting up a queue with mq ops, given queue depth, and
- * the passed in mq ops flags.
+/**
+ * blk_mq_init_sq_queue - Create a new request queue with only one hw_queue (SQ)
+ * @set: tag set to be associated by the newly created request queue
+ * @ops: operations to be associated with @set
+ * @queue_depth: number of tags of @set
+ * @set_flags: flags of @set
+ *
+ * Description:
+ * @set is initialized using @ops, @queue_depth, @set_flags, and using only one
+ * hw_queue (SQ). Later on blk_mq_alloc_tag_set() is called to validate and/or
+ * adjust values of the tag set. blk_mq_init_queue() is called passing @set as
+ * argument, returning a new request queue with @set associated.
+ *
+ * Returns the newly created request queue on success, or ERR_PTR() on failure.
  */
 struct request_queue *blk_mq_init_sq_queue(struct blk_mq_tag_set *set,
 					   const struct blk_mq_ops *ops,
-- 
2.16.4