linux-kernel - Re: [PATCH v6] add MAP

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Message-ID: <20100118191031.0088f49a@lxorguk.ukuu.org.uk>
Date:	Mon, 18 Jan 2010 19:10:31 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Gleb Natapov <gleb@...hat.com>
Cc:	Pekka Enberg <penberg@...helsinki.fi>, linux-mm@...ck.org,
	kosaki.motohiro@...fujitsu.com, linux-kernel@...r.kernel.org,
	linux-api@...r.kernel.org, akpm@...ux-foundation.org,
	andrew.c.morrow@...il.com,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: Re: [PATCH v6] add MAP_UNLOCKED mmap flag

> I can't realistically chase every address space mapping changes and mlock
> new areas. The only way other then mlockall() is to use custom memory
> allocator that allocates mlocked memory.

Which keeps all the special cases in your app rather than in every single
users kernel. That seems to be the right way up, especially as you can
make a library of it !

Alan
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