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Message-ID: <1580797600.21785.3.camel@mtksdccf07>
Date: Tue, 4 Feb 2020 14:26:40 +0800
From: Stanley Chu <stanley.chu@...iatek.com>
To: Can Guo <cang@...eaurora.org>
CC: <asutoshd@...eaurora.org>, <nguyenb@...eaurora.org>,
<hongwus@...eaurora.org>, <rnayak@...eaurora.org>,
<linux-scsi@...r.kernel.org>, <kernel-team@...roid.com>,
<saravanak@...gle.com>, <salyzyn@...gle.com>,
Alim Akhtar <alim.akhtar@...sung.com>,
Avri Altman <avri.altman@....com>,
"James E.J. Bottomley" <jejb@...ux.ibm.com>,
"Martin K. Petersen" <martin.petersen@...cle.com>,
Bean Huo <beanhuo@...ron.com>,
"Bart Van Assche" <bvanassche@....org>,
Venkat Gopalakrishnan <venkatg@...eaurora.org>,
Tomas Winkler <tomas.winkler@...el.com>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v5 5/8] scsi: ufs: Fix ufshcd_hold() caused scheduling
while atomic
On Mon, 2020-02-03 at 01:17 -0800, Can Guo wrote:
> The async version of ufshcd_hold(async == true), which is only called
> in queuecommand path as for now, is expected to work in atomic context,
> thus it should not sleep or schedule out. When it runs into the condition
> that clocks are ON but link is still in hibern8 state, it should bail out
> without flushing the clock ungate work.
>
> Signed-off-by: Can Guo <cang@...eaurora.org>
> Reviewed-by: Hongwu Su <hongwus@...eaurora.org>
> Reviewed-by: Asutosh Das <asutoshd@...eaurora.org>
Reviewed-by: Stanley Chu <stanley.chu@...iatek.com>
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