linux-kernel - Re: [PATCH v5] add MAP

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Message-ID: <20100113173152.GA2666@sequoia.sous-sol.org>
Date:	Wed, 13 Jan 2010 09:31:52 -0800
From:	Chris Wright <chrisw@...s-sol.org>
To:	Gleb Natapov <gleb@...hat.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	linux-api@...r.kernel.org, akpm@...ux-foundation.org
Subject: Re: [PATCH v5] add MAP_UNLOCKED mmap flag

* Gleb Natapov (gleb@...hat.com) wrote:
> If application does mlockall(MCL_FUTURE) it is no longer possible to mmap
> file bigger than main memory or allocate big area of anonymous memory
> in a thread safe manner. Sometimes it is desirable to lock everything
> related to program execution into memory, but still be able to mmap
> big file or allocate huge amount of memory and allow OS to swap them on
> demand. MAP_UNLOCKED allows to do that.
>  
> Signed-off-by: Gleb Natapov <gleb@...hat.com>

Looks good to me.

Acked-by: Chris Wright <chrisw@...s-sol.org>

thanks,
-chris
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