linux-kernel - [PATCH 0/2] ACPI / PCI / PM: Delay resuming runtine-suspended devices during system-suspend

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Message-ID: <1853950.oxM3KDpyLu@vostro.rjw.lan>
Date:	Mon, 24 Feb 2014 00:18:22 +0100
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Linux PM list <linux-pm@...r.kernel.org>
Cc:	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux PCI <linux-pci@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH 0/2] ACPI / PCI / PM: Delay resuming runtine-suspended devices during system-suspend

Hi All,

The PCI bus type and the ACPI PM domain resume runtime-suspended devices during
their .prepare() callbacks, which is suboptimal.

One problem caused by that is increasing the time of system suspend if there
are many runtime-suspended devices to resume during it (because the .prepare()
callbacks are executed sequentially).

The following two patches are intended to improve that one aspect slightly
in those two subsystems.

Thanks!

-- 
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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