linux-kernel - RE: [RFC PATCH 08/12] mm: use mirrorable to switch allocate mirrored memory

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Message-ID: <3908561D78D1C84285E8C5FCA982C28F32A8D5A2@ORSMSX114.amr.corp.intel.com>
Date:	Thu, 4 Jun 2015 17:01:08 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Xishi Qiu <qiuxishi@...wei.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"nao.horiguchi@...il.com" <nao.horiguchi@...il.com>,
	Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"mingo@...e.hu" <mingo@...e.hu>, Xiexiuqi <xiexiuqi@...wei.com>,
	Hanjun Guo <guohanjun@...wei.com>
CC:	Linux MM <linux-mm@...ck.org>, LKML <linux-kernel@...r.kernel.org>
Subject: RE: [RFC PATCH 08/12] mm: use mirrorable to switch allocate
 mirrored memory

> Add a new interface in path /proc/sys/vm/mirrorable. When set to 1, it means
> we should allocate mirrored memory for both user and kernel processes.

With some "to be defined later" mechanism for how the user requests mirror vs.
not mirror.  Plus some capability/ulimit pieces that restrict who can do this and how
much they can get???

-Tony
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