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

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Date:	Fri, 28 May 2010 14:30:36 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Arve Hjønnevåg <arve@...roid.com>,
	Matthew Garrett <mjg59@...f.ucam.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	Florian Mickler <florian@...kler.org>, felipe.balbi@...ia.com,
	Linux OMAP Mailing List <linux-omap@...r.kernel.org>,
	Linux PM <linux-pm@...ts.linux-foundation.org>
Subject: Re: [linux-pm] [PATCH 0/8] Suspend block api (version 8)

On Fri, 2010-05-28 at 13:21 +0100, Alan Cox wrote:
> [Total kernel changes
> 
>         Ability to mark/unmark a scheduler control group as outside of
>         some parts of idle consideration. Generically useful and
>         localised. Group latency will do most jobs fine (Zygo is correct
>         it can't solve his backup case elegantly I think)
> 
>         Test in the idling logic to distinguish the case and only needed
>         for a single Android specific power module. Generically useful
>         and localised] 

I really don't like this..

Why can't we go with the previously suggested: make bad apps block on
QoS resources or send SIGXCPU, SIGSTOP, SIGTERM and eventually SIGKILL?



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