linux-kernel - RE: [PATCH v1 1/5] scsi: ufs: Recheck bkops level if bkops is disabled

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Message-ID: <MN2PR04MB69913E6B58B9B474896BDA76FC770@MN2PR04MB6991.namprd04.prod.outlook.com>
Date:   Tue, 12 Nov 2019 07:10:38 +0000
From:   Avri Altman <Avri.Altman@....com>
To:     Can Guo <cang@...eaurora.org>,
        "asutoshd@...eaurora.org" <asutoshd@...eaurora.org>,
        "nguyenb@...eaurora.org" <nguyenb@...eaurora.org>,
        "rnayak@...eaurora.org" <rnayak@...eaurora.org>,
        "linux-scsi@...r.kernel.org" <linux-scsi@...r.kernel.org>,
        "kernel-team@...roid.com" <kernel-team@...roid.com>,
        "saravanak@...gle.com" <saravanak@...gle.com>,
        "salyzyn@...gle.com" <salyzyn@...gle.com>
CC:     Alim Akhtar <alim.akhtar@...sung.com>,
        Pedro Sousa <pedrom.sousa@...opsys.com>,
        "James E.J. Bottomley" <jejb@...ux.ibm.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        Stanley Chu <stanley.chu@...iatek.com>,
        Bean Huo <beanhuo@...ron.com>,
        Subhash Jadavani <subhashj@...eaurora.org>,
        Tomas Winkler <tomas.winkler@...el.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v1 1/5] scsi: ufs: Recheck bkops level if bkops is
 disabled

> 
> From: Asutosh Das <asutoshd@...eaurora.org>
> 
> Bkops level should be rechecked upon receiving an exception.
> Currently the bkops level is being cached and never updated.
> 
> Update the same each time the level is checked.
> Also do not use the cached bkops level value if it is disabled and then enabled.
> 
> Signed-off-by: Asutosh Das <asutoshd@...eaurora.org>
> Signed-off-by: Can Guo <cang@...eaurora.org>
Acked-by Avri Altman <avri.altman@....com>

This is essentially a bug fix:
Fixes: afdfff59a0e0 (scsi: ufs: handle non spec compliant bkops behaviour by device)