From: "Martin K. Petersen" <martin.petersen@oracle.com>
To: Stanley Chu <stanley.chu@mediatek.com>
Cc: sthumma@codeaurora.org, linux-scsi@vger.kernel.org,
martin.petersen@oracle.com, marc.w.gonzalez@free.fr,
vivek.gautam@codeaurora.org, kernel-team@android.com,
jejb@linux.ibm.com, chun-hung.wu@mediatek.com,
kuohong.wang@mediatek.com, subhashj@codeaurora.org,
evgreen@chromium.org, avri.altman@wdc.com,
linux-mediatek@lists.infradead.org, peter.wang@mediatek.com,
alim.akhtar@samsung.com, andy.teng@mediatek.com,
matthias.bgg@gmail.com, beanhuo@micron.com,
pedrom.sousa@synopsys.com, linux-arm-kernel@lists.infradead.org,
bvanassche@acm.org
Subject: Re: [PATCH v4 0/3] scsi: core: allow auto suspend override by low-level driver
Date: Mon, 30 Sep 2019 23:01:45 -0400 [thread overview]
Message-ID: <yq1o8z1xj6u.fsf@oracle.com> (raw)
In-Reply-To: <1568649411-5127-1-git-send-email-stanley.chu@mediatek.com> (Stanley Chu's message of "Mon, 16 Sep 2019 23:56:48 +0800")
Stanley,
> Until now the scsi mid-layer forbids runtime suspend till userspace
> enables it. This is mainly to quarantine some disks with broken
> runtime power management or have high latencies executing suspend
> resume callbacks. If the userspace doesn't enable the runtime suspend
> the underlying hardware will be always on even when it is not doing
> any useful work and thus wasting power.
Applied to 5.5/scsi-queue, thank you!
--
Martin K. Petersen Oracle Linux Engineering
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prev parent reply other threads:[~2019-10-01 3:02 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-16 15:56 [PATCH v4 0/3] scsi: core: allow auto suspend override by low-level driver Stanley Chu
2019-09-16 15:56 ` [PATCH v4 1/3] " Stanley Chu
2019-09-16 15:56 ` [PATCH v4 2/3] scsi: ufs: override auto suspend tunables for ufs Stanley Chu
2019-09-16 15:56 ` [PATCH v4 3/3] scsi: ufs-mediatek: enable auto suspend capability Stanley Chu
2019-10-01 3:01 ` Martin K. Petersen [this message]
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