linux-kernel - RE: [PATCH 4/6] fs/proc/page.c: introduce /proc/kpagecache interface

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Message-ID: <3908561D78D1C84285E8C5FCA982C28F31E04DD3@ORSMSX106.amr.corp.intel.com>
Date:	Thu, 13 Mar 2014 23:09:10 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	Andi Kleen <andi@...stfloor.org>,
	"Wu, Fengguang" <fengguang.wu@...el.com>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>,
	Dave Chinner <david@...morbit.com>,
	"Jun'ichi Nomura" <j-nomura@...jp.nec.com>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>
Subject: RE: [PATCH 4/6] fs/proc/page.c: introduce /proc/kpagecache interface

> Usage is simple: 1) write a file path to be scanned into the interface,
> and 2) read 64-bit entries, each of which is associated with the page on
> each page index.

Do we have other interfaces that work like that?  I suppose this is file is only open
to "root", so it may be safe to assume that applications using this won't stomp on
each other.

-Tony
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