linux-kernel - Re: [PATCH] blk-mq: don't dispatch request in blk_mq_request_direct

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Message-ID: <5f7edaad-6541-4e9d-996c-db982fa283a9@kernel.dk>
Date:   Wed, 17 Jan 2018 21:39:20 -0700
From:   Jens Axboe <axboe@...nel.dk>
To:     Ming Lei <ming.lei@...hat.com>, linux-block@...r.kernel.org,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com
Cc:     Christoph Hellwig <hch@...radead.org>,
        Bart Van Assche <bart.vanassche@...disk.com>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] blk-mq: don't dispatch request in
 blk_mq_request_direct_issue if queue is busy

On 1/17/18 9:06 PM, Ming Lei wrote:
> If we run into blk_mq_request_direct_issue(), when queue is busy, we
> don't want to dispatch this request into hctx->dispatch_list, and
> what we need to do is to return the queue busy info to caller, so
> that caller can deal with it well.

Thanks for fixing this up, applied.

-- 
Jens Axboe