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Message-ID: <c6a0eb8d-ad51-01b1-bc17-758acc37f216@acm.org>
Date: Fri, 17 Jun 2022 09:55:34 -0700
From: Bart Van Assche <bvanassche@....org>
To: John Garry <john.garry@...wei.com>, axboe@...nel.dk,
damien.lemoal@...nsource.wdc.com, hch@....de, jejb@...ux.ibm.com,
martin.petersen@...cle.com, hare@...e.de, satishkh@...co.com,
sebaddel@...co.com, kartilak@...co.com
Cc: linux-rdma@...r.kernel.org, linux-mmc@...r.kernel.org,
linux-nvme@...ts.infradead.org, linux-s390@...r.kernel.org,
linux-scsi@...r.kernel.org, mpi3mr-linuxdrv.pdl@...adcom.com,
linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
nbd@...er.debian.org
Subject: Re: [PATCH 5/5] blk-mq: Drop 'reserved' member of busy_tag_iter_fn
On 6/17/22 09:42, John Garry wrote:
> On 17/06/2022 17:33, Bart Van Assche wrote:
>> On 6/17/22 03:55, John Garry wrote:
>>> @@ -276,7 +275,7 @@ static bool bt_iter(struct sbitmap *bitmap,
>>> unsigned int bitnr, void *data)
>>> else
>>> tags = hctx->tags;
>>> - if (!reserved)
>>> + if (!iter_data->reserved)
>>> bitnr += tags->nr_reserved_tags;
>>> /*
>>> * We can hit rq == NULL here, because the tagging functions
>>
>> Is the above change really necessary?
>
> It's not totally necessary. Since local variable 'reserved' would now
> only be used once I thought it was better to get rid of it.
>
> I can keep it if you really think that is better.
I'd prefer that these changes are either left out or that these are
moved into a separate patch. I think that will make this patch series
easier to review.
Thanks,
Bart.
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