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Date:	Sat, 04 Oct 2014 06:13:27 -0700
From:	Andi Kleen <andi@...stfloor.org>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	linux-api@...r.kernel.org,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH 12/17] mm: sys_remap_anon_pages

Andrea Arcangeli <aarcange@...hat.com> writes:

> This new syscall will move anon pages across vmas, atomically and
> without touching the vmas.
>
> It only works on non shared anonymous pages because those can be
> relocated without generating non linear anon_vmas in the rmap code.

...

> It is an alternative to mremap.

Why a new syscall? Couldn't mremap do this transparently?

-Andi

-- 
ak@...ux.intel.com -- Speaking for myself only
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