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From: Rik van Riel <riel@conectiva.com.br>
To: Mark_H_Johnson@raytheon.com
Cc: Andrew Morton <akpm@digeo.com>, <linux-kernel@vger.kernel.org>,
	<linux-mm@kvack.org>, <owner-linux-mm@kvack.org>
Subject: Re: [PATCH] recognize MAP_LOCKED in mmap() call
Date: Wed, 18 Sep 2002 16:39:48 -0300 (BRT)	[thread overview]
Message-ID: <Pine.LNX.4.44L.0209181639260.1519-100000@duckman.distro.conectiva> (raw)
In-Reply-To: <OFC0C42F8D.E1325D58-ON86256C38.00695CD8@hou.us.ray.com>

On Wed, 18 Sep 2002 Mark_H_Johnson@raytheon.com wrote:
> Andrew Morton wrote:
> >(SuS really only anticipates that mmap needs to look at prior mlocks
> >in force against the address range.  It also says
> >
> >     Process memory locking does apply to shared memory regions,
> >
> >and we don't do that either.  I think we should; can't see why SuS
> >requires this.)
>
> Let me make sure I read what you said correctly. Does this mean that
> Linux 2.4 (or 2.5) kernels do not lock shared memory regions if a
> process uses mlockall?

But it does.  Linux won't evict memory that's MLOCKed...

cheers,

Rik
-- 
Spamtrap of the month: september@surriel.com

http://www.surriel.com/		http://distro.conectiva.com/


  reply	other threads:[~2002-09-18 19:35 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-09-18 19:18 Mark_H_Johnson
2002-09-18 19:39 ` Rik van Riel [this message]
2002-09-18 19:54 ` Andrew Morton
2002-09-25 15:42   ` Hubertus Franke
2002-09-25 16:35     ` Andrew Morton
2002-09-25 15:36 ` Hubertus Franke
  -- strict thread matches above, loose matches on Subject: below --
2002-09-25 16:57 Mark_H_Johnson
2002-09-13  3:33 [PATCH] per-zone kswapd process Dave Hansen
2002-09-13 13:05 ` Alan Cox
2002-09-13 21:30   ` William Lee Irwin III
2002-09-18 16:07     ` [PATCH] recognize MAP_LOCKED in mmap() call Hubertus Franke
2002-09-18 16:29       ` Andrew Morton

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