linux-kernel - Re: [PATCH 2/2] ufs: don't use the fair tag sharings

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Message-ID: <dcfae203-005f-928b-37d6-7ee5bb4e2971@acm.org>
Date:   Tue, 9 May 2023 07:04:06 -0700
From:   Bart Van Assche <bvanassche@....org>
To:     Avri Altman <Avri.Altman@....com>, Ed Tsai <ed.tsai@...iatek.com>,
        "axboe@...nel.dk" <axboe@...nel.dk>
Cc:     "linux-block@...r.kernel.org" <linux-block@...r.kernel.org>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "martin.petersen@...cle.com" <martin.petersen@...cle.com>,
        "stanley.chu@...iatek.com" <stanley.chu@...iatek.com>,
        "peter.wang@...iatek.com" <peter.wang@...iatek.com>,
        "chun-hung.wu@...iatek.com" <chun-hung.wu@...iatek.com>,
        "alice.chao@...iatek.com" <alice.chao@...iatek.com>,
        "powen.kao@...iatek.com" <powen.kao@...iatek.com>,
        "naomi.chu@...iatek.com" <naomi.chu@...iatek.com>,
        "wsd_upstream@...iatek.com" <wsd_upstream@...iatek.com>
Subject: Re: [PATCH 2/2] ufs: don't use the fair tag sharings

On 5/9/23 01:03, Avri Altman wrote:
> However, I think the decision of that should be of the platform owner,
> And not in the core driver.

Hi Avri,

I don't see any use case in which performance of a UFS device would be improved
by leaving QUEUE_FLAG_FAIR_TAG_SHARING enabled. Are you perhaps aware of such a
use case?

Thanks,

Bart.