linux-kernel - Re: [PATCH v3 0/3] Untie the host lock entanglement

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Message-ID: <173077364682.2354920.13530203204903244087.b4-ty@oracle.com>
Date: Mon,  4 Nov 2024 21:32:48 -0500
From: "Martin K. Petersen" <martin.petersen@...cle.com>
To: Avri Altman <avri.altman@....com>
Cc: "Martin K . Petersen" <martin.petersen@...cle.com>,
        linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bart Van Assche <bvanassche@....org>
Subject: Re: [PATCH v3 0/3] Untie the host lock entanglement - part 1

On Thu, 24 Oct 2024 10:50:30 +0300, Avri Altman wrote:

> While trying to simplify the ufs core driver with the guard() macro [1],
> Bart made note of the abuse of the scsi host lock in the ufs driver.
> Indeed, the host lock is deeply entangled in various flows across the
> driver, as if it was some occasional default synchronization mean.
> 
> Here is the first part of defusing it, remove some of those calls around
> host registers accesses, which needs no protection.
> 
> [...]

Applied to 6.13/scsi-queue, thanks!

[1/3] scsi: ufs: core: Remove redundant host_lock calls around UTMRLDBR.
      https://git.kernel.org/mkp/scsi/c/2b314e182caa
[2/3] scsi: ufs: core: Remove redundant host_lock calls around UTMRLCLR
      https://git.kernel.org/mkp/scsi/c/5824e18b3db4
[3/3] scsi: ufs: core: Remove redundant host_lock calls around UTRLCLR.
      https://git.kernel.org/mkp/scsi/c/2a330f16ad30

-- 
Martin K. Petersen	Oracle Linux Engineering