Subject: Re: [PATCH RFT] blk-mq: optimize queue tag busy iter for shared_tags
To:     Kashyap Desai <kashyap.desai@broadcom.com>, <axboe@kernel.dk>
CC:     <linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <ming.lei@redhat.com>,
        Sathya Prakash Veerichetty <sathya.prakash@broadcom.com>
References: <20211221123157.14052-1-kashyap.desai@broadcom.com>
 <e9174a89-b3a4-d737-c5a9-ff3969053479@huawei.com>
 <7028630054e9cd0e8c84670a27c2b164@mail.gmail.com>
 <e7288bcd-cc4d-8f57-a0c8-eadd53732177@huawei.com>
 <c26b40bac76ec1bfbab2419aece544ca@mail.gmail.com>
From:   John Garry <john.garry@huawei.com>
Message-ID: <e50cfdcd-110b-d778-6e3f-edfed9b1c5a4@huawei.com>
Date:   Wed, 22 Dec 2021 11:35:22 +0000
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On 22/12/2021 11:20, Kashyap Desai wrote:
> Yes, above is the same changes I was looking for. I did very basic mistake.
> I applied your above commit while doing megaraid_sas testing.
>   While I move to mpi3mr testing, I did not apply your patch set. 

But I did not think that my patch would help mpi3mr since it does not 
use host_tagset.

> We can drop
> request of this RFT since I tested above series and it serve the same
> purpose.

ok, fine.

And just to confirm, do you now think that we need to fix any older 
kernel with some backport of my changes? I think that we would just need 
to consider 5.16 (when it becomes stable), 5.15, and and 5.10

Thanks,
John