From: Minwoo Im <minwoo.im.dev@gmail.com>
To: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Jens Axboe <axboe@kernel.dk>, Minwoo Im <minwoo.im.dev@gmail.com>
Subject: [PATCH 1/3] blk-mq: add helper allocating tagset->tags
Date: Sat, 5 Dec 2020 00:20:53 +0900 [thread overview]
Message-ID: <20201204152055.31605-2-minwoo.im.dev@gmail.com> (raw)
In-Reply-To: <20201204152055.31605-1-minwoo.im.dev@gmail.com>
tagset->set is allocated from blk_mq_alloc_tag_set() rather than being
reallocated. This patch added a helper to make its meaning explicitly
which is to allocate rather than to reallocate.
Signed-off-by: Minwoo Im <minwoo.im.dev@gmail.com>
---
block/blk-mq.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 37c682855a63..69771ba18f1f 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -3377,6 +3377,12 @@ static int blk_mq_realloc_tag_set_tags(struct blk_mq_tag_set *set,
return 0;
}
+static int blk_mq_alloc_tag_set_tags(struct blk_mq_tag_set *set,
+ int new_nr_hw_queues)
+{
+ return blk_mq_realloc_tag_set_tags(set, 0, new_nr_hw_queues);
+}
+
/*
* Alloc a tag set to be associated with one or more request queues.
* May fail with EINVAL for various error conditions. May adjust the
@@ -3430,7 +3436,7 @@ int blk_mq_alloc_tag_set(struct blk_mq_tag_set *set)
if (set->nr_maps == 1 && set->nr_hw_queues > nr_cpu_ids)
set->nr_hw_queues = nr_cpu_ids;
- if (blk_mq_realloc_tag_set_tags(set, 0, set->nr_hw_queues) < 0)
+ if (blk_mq_alloc_tag_set_tags(set, set->nr_hw_queues) < 0)
return -ENOMEM;
ret = -ENOMEM;
--
2.17.1
next prev parent reply other threads:[~2020-12-04 15:22 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-04 15:20 [PATCH 0/3] blk-mq: trivial helper and fixes comments Minwoo Im
2020-12-04 15:20 ` Minwoo Im [this message]
2020-12-04 15:20 ` [PATCH 2/3] blk-mq: update arg in comment of blk_mq_map_queue Minwoo Im
2020-12-11 17:07 ` John Garry
2020-12-04 15:20 ` [PATCH 3/3] blk-mq: fix msec comment from micro to milli seconds Minwoo Im
2020-12-11 17:00 ` John Garry
2020-12-11 11:32 ` [PATCH 0/3] blk-mq: trivial helper and fixes comments Minwoo Im
2020-12-12 18:14 ` Jens Axboe
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