linux-kernel - Re: [RFC 1/3] /dev/low_mem

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Date:	Tue, 24 Jan 2012 18:01:20 +0200
From:	Pekka Enberg <penberg@...nel.org>
To:	Marcelo Tosatti <mtosatti@...hat.com>
Cc:	Rik van Riel <riel@...hat.com>, Minchan Kim <minchan@...nel.org>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>, leonid.moiseichuk@...ia.com,
	kamezawa.hiroyu@...fujitsu.com, mel@....ul.ie, rientjes@...gle.com,
	KOSAKI Motohiro <kosaki.motohiro@...il.com>,
	Johannes Weiner <hannes@...xchg.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ronen Hod <rhod@...hat.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Subject: Re: [RFC 1/3] /dev/low_mem_notify

On Tue, 2012-01-24 at 13:40 -0200, Marcelo Tosatti wrote:
> What is the practical advantage of a syscall, again?

Why do you ask? The advantage for this particular case is not needing to
add ioctls() for configuration and keeping the file read/write ABI
simple.

			Pekka

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