From: Andrea Arcangeli <andrea@suse.de>
To: Andrew Morton <akpm@osdl.org>
Cc: m.c.p@wolk-project.de, linux-kernel@vger.kernel.org, torvalds@osdl.org
Subject: Re: do we want to kill VM_RESERVED or not? [was Re: 2.6.5-rc1-aa3]
Date: Mon, 22 Mar 2004 01:51:24 +0100 [thread overview]
Message-ID: <20040322005124.GG3649@dualathlon.random> (raw)
In-Reply-To: <20040321152427.61d88cea.akpm@osdl.org>
On Sun, Mar 21, 2004 at 03:24:27PM -0800, Andrew Morton wrote:
> I'd prefer to retain VM_RESERVED and work toward removing PageReserved().
> The latter has a real and measurable cost in put_page().
agreed. Unfortunately removing PageReserved won't be so trivial since
it'll be a change to userspace API too, today a PageReserved page
through fork() will act as a MAP_SHARED even if it's under a
MAP_PRIVATE, so slightly subtle userspace stuff can break then.
prev parent reply other threads:[~2004-03-22 0:50 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-20 21:03 2.6.5-rc1-aa3 Andrea Arcangeli
2004-03-20 22:06 ` 2.6.5-rc1-aa3 Andrew Morton
2004-03-21 6:17 ` 2.6.5-rc1-aa3 Martin J. Bligh
2004-03-21 11:51 ` 2.6.5-rc1-aa3 Andrea Arcangeli
2004-03-21 13:26 ` 2.6.5-rc1-aa3 Andrea Arcangeli
2004-03-21 16:23 ` 2.6.5-rc1-aa3 Martin J. Bligh
2004-03-21 10:05 ` 2.6.5-rc1-aa3 Marc-Christian Petersen
2004-03-21 11:49 ` do we want to kill VM_RESERVED or not? [was Re: 2.6.5-rc1-aa3] Andrea Arcangeli
2004-03-21 12:00 ` Andrea Arcangeli
2004-03-21 12:15 ` Andrea Arcangeli
2004-03-21 19:42 ` Marc-Christian Petersen
2004-03-22 0:10 ` Andrea Arcangeli
2004-03-22 12:10 ` Marc-Christian Petersen
2004-03-22 12:42 ` Andrea Arcangeli
2004-03-23 9:54 ` Marc-Christian Petersen
2004-03-21 23:24 ` Andrew Morton
2004-03-22 0:51 ` Andrea Arcangeli [this message]
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