linux-kernel - Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <Pine.LNX.4.44L0.1005271327560.3239-100000@iolanthe.rowland.org>
Date:	Thu, 27 May 2010 13:29:18 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Peter Zijlstra <peterz@...radead.org>
cc:	Felipe Balbi <felipe.balbi@...ia.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Arve Hjønnevåg <arve@...roid.com>,
	LKML <linux-kernel@...r.kernel.org>,
	Florian Mickler <florian@...kler.org>,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux PM <linux-pm@...ts.linux-foundation.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

On Thu, 27 May 2010, Peter Zijlstra wrote:

> On Thu, 2010-05-27 at 13:04 -0400, Alan Stern wrote:
> > 
> > Does this mean you believe "echo mem >/sys/power/state" is bad and
> > should be removed?  Or "echo disk >/sys/power/state"?  They pay no
> > attention to latencies or other requirements. 
> 
> Those are a whole different beast, those are basically a quick-off
> button like thing. Forced suspend is conceptually a very different beast
> from power-saving a running system.

They may be different conceptually.  Nevertheless, Android uses forced 
suspend as a form of power saving.  Until better mechanisms are in 
place, it makes sense.

Alan Stern

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/