linux-kernel - Re: [PATCH 3/6] ksm: change the KSM_REMOVE_MEMORY

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Date:	Thu, 7 May 2009 13:31:20 +0200
From:	Andrea Arcangeli <aarcange@...hat.com>
To:	Chris Wright <chrisw@...hat.com>
Cc:	Hugh Dickins <hugh@...itas.com>, Izik Eidus <ieidus@...hat.com>,
	Rik van Riel <riel@...hat.com>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, alan@...rguk.ukuu.org.uk,
	device@...ana.org, linux-mm@...ck.org, nickpiggin@...oo.com.au
Subject: Re: [PATCH 3/6] ksm: change the KSM_REMOVE_MEMORY_REGION ioctl.

On Wed, May 06, 2009 at 09:49:45AM -0700, Chris Wright wrote:
> I like merge.  For madvise() approach I had used:
> 
> +#define MADV_SHAREABLE 12              /* can share identical pages */
> +#define MADV_UNSHAREABLE 13            /* can not share identical pages
> 
> But those are maybe better put as MADV_(UN)MERGEABLE (gets a bit confusing when
> you talk of merging vmas ;-)
> */

What this thing does is to create shared pages by merging equal pages...

While I don't care about the naming much myself, one problem I have is
that I've been writing a KSM paper for linuxsymposium and I'd like to
use a nomenclature that is in sync with how this stuff should be
called on lkml, to avoid confusion.

So should I change the simpler word KSM with "Memory Merging feature"
all over the paper?

In addition I consistently use the term "shared KSM pages" often,
should I rename all those instances to "merged pages"? I used the word
'merging' only when describing the operation KSM does when it creates
shared pages, but never to name the generated pages themself.

Thanks,
Andrea
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