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Date: Tue, 22 Oct 2024 14:08:15 -0600
From: Keith Busch <kbusch@kernel.org>
To: Bart Van Assche <bvanassche@acm.org>
Cc: Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org,
	Christoph Hellwig <hch@lst.de>,
	Peter Wang <peter.wang@mediatek.com>,
	Chao Leng <lengchao@huawei.com>, Ming Lei <ming.lei@redhat.com>,
	stable@vger.kernel.org
Subject: Re: [PATCH] blk-mq: Make blk_mq_quiesce_tagset() hold the tag list
 mutex less long
Message-ID: <ZxgGL_DhYwBcrFvE@kbusch-mbp>
References: <20241022181617.2716173-1-bvanassche@acm.org>
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In-Reply-To: <20241022181617.2716173-1-bvanassche@acm.org>

On Tue, Oct 22, 2024 at 11:16:17AM -0700, Bart Van Assche wrote:
> Make sure that the tag_list_lock mutex is no longer held than necessary.
> This change reduces latency if e.g. blk_mq_quiesce_tagset() is called
> concurrently from more than one thread. This function is used by the
> NVMe core and also by the UFS driver.

Looks good to me.

Reviewed-by: Keith Busch <kbusch@kernel.org>