linux-kernel - Re: [PATCH v2 0/3] blk-mq: Optimise blk_mq_queue_tag_busy

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Message-ID: <2d4b2468-a5a8-cc8b-d238-92791a9e813c@huawei.com>
Date:   Mon, 6 Dec 2021 19:59:45 +0000
From:   John Garry <john.garry@...wei.com>
To:     Jens Axboe <axboe@...nel.dk>
CC:     <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <ming.lei@...hat.com>, <kashyap.desai@...adcom.com>, <hare@...e.de>
Subject: Re: [PATCH v2 0/3] blk-mq: Optimise blk_mq_queue_tag_busy_iter() for
 shared tags

On 06/12/2021 19:48, Jens Axboe wrote:
>> The first two patches aren't fixes, but are general dev. As for the
>> last, it prob should go as a fix for 5.16, but I was not sure how you
>> would feel about that - it's not a trivial change, we're late in the
>> cycle, and Kashyap was happy for 5.17 .
>>

Hi Jens,

>> Let me know if the last could be accepted as a fix and I'll re-send
>> separately with a fixes tag.
> Regardless of whether it's going into 5.16 or 5.17 it should have a
> fixes tag.

ok, so patch 3/3 would fix commit e155b0c238b2 ("blk-mq: Use shared tags 
for shared sbitmap support")

I'll reply to that one with a fixes tag and I think that b4 would pick 
it up in case.

Cheers,
John