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From: "Luck, Tony" <tony.luck@intel.com>
To: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Andi Kleen <andi@firstfloor.org>,
	"Wu, Fengguang" <fengguang.wu@intel.com>,
	Wanpeng Li <liwanp@linux.vnet.ibm.com>,
	Dave Chinner <david@fromorbit.com>,
	Jun'ichi Nomura <j-nomura@ce.jp.nec.com>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: RE: [PATCH 4/6] fs/proc/page.c: introduce /proc/kpagecache interface
Date: Thu, 13 Mar 2014 23:09:10 +0000	[thread overview]
Message-ID: <3908561D78D1C84285E8C5FCA982C28F31E04DD3@ORSMSX106.amr.corp.intel.com> (raw)
In-Reply-To: <1394746786-6397-5-git-send-email-n-horiguchi@ah.jp.nec.com>

> 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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  reply	other threads:[~2014-03-13 23:14 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-03-13 21:39 [PATCH 0/6] memory error report/recovery for dirty pagecache v3 Naoya Horiguchi
2014-03-13 21:39 ` [PATCH 1/6] radix-tree: add end_index to support ranged iteration Naoya Horiguchi
2014-03-13 21:39 ` [PATCH 2/6] mm/memory-failure.c: report and recovery for memory error on dirty pagecache Naoya Horiguchi
2014-03-15  3:17   ` Andi Kleen
2014-03-15  6:23     ` Naoya Horiguchi
2014-03-13 21:39 ` [PATCH 3/6] mm/memory-failure.c: add code to resolve quasi-hwpoisoned page Naoya Horiguchi
2014-03-13 21:39 ` [PATCH 4/6] fs/proc/page.c: introduce /proc/kpagecache interface Naoya Horiguchi
2014-03-13 23:09   ` Luck, Tony [this message]
2014-03-13 23:44     ` Naoya Horiguchi
2014-03-13 21:39 ` [PATCH 5/6] tools/vm/page-types.c: add file scanning mode Naoya Horiguchi
2014-03-13 21:39 ` [PATCH 6/6] Documentation: update Documentation/vm/pagemap.txt Naoya Horiguchi
2014-03-13 22:28 ` [PATCH 3/6] mm/memory-failure.c: add code to resolve quasi-hwpoisoned page Naoya Horiguchi

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