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Date: Tue, 31 Jan 2012 14:46:46 +0200 From: Pekka Enberg <penberg@...nel.org> To: Maxime Coquelin <maxime.coquelin@...ricsson.com> Cc: Mel Gorman <mel@....ul.ie>, "linux-mm@...ck.org" <linux-mm@...ck.org>, "linaro-mm-sig@...ts.linaro.org" <linaro-mm-sig@...ts.linaro.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, Linus WALLEIJ <linus.walleij@...ricsson.com>, Andrea GALLO <andrea.gallo@...ricsson.com>, Vincent GUITTOT <vincent.guittot@...ricsson.com>, Philippe LANGLAIS <philippe.langlais@...ricsson.com>, Loic PALLARDY <loic.pallardy@...ricsson.com> Subject: Re: [RFCv1 3/6] PASR: mm: Integrate PASR in Buddy allocator On Mon, Jan 30, 2012 at 6:52 PM, Maxime Coquelin <maxime.coquelin@...ricsson.com> wrote: >> What is more likely is that you will get pushed to doing something like >> periodically scanning memory as part of a separate power management >> module and calling into PASR if regions of memory that are found that >> can be powered down in some ways. > > With this solution, we need in any case to add some hooks in the allocator > to ensure the pages being allocated are refreshed. Why do you insist on making this happen at page level when you're only able to power off *much* larger chunks? -- 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/
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