linux-kernel - Re: [PATCH 07/10] ksm: Kernel SamePage Merging

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Message-ID: <4A64B90E.2090509@redhat.com>
Date:	Mon, 20 Jul 2009 14:35:58 -0400
From:	Rik van Riel <riel@...hat.com>
To:	Izik Eidus <ieidus@...hat.com>
CC:	akpm@...ux-foundation.org, hugh.dickins@...cali.co.uk,
	aarcange@...hat.com, chrisw@...hat.com, avi@...hat.com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	nickpiggin@...oo.com.au
Subject: Re: [PATCH 07/10] ksm: Kernel SamePage Merging

Izik Eidus wrote:
> From: Izik Eidus <ieidus@...hat.com>
> 
> Ksm is code that allows merging of identical pages between one or
> more applications, in a way invisible to the applications that use it.
> Pages that are merged are marked as read-only, then COWed when any
> application tries to change them.
> 
> Whereas fork() allows sharing anonymous pages between parent and child,
> ksm can share anonymous pages between unrelated processes.

Acked-by: Rik van Riel <riel@...hat.com>

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