From: Arjan van de Ven <arjanv@redhat.com>
To: Andy Isaacson <adi@hexapodia.org>
Cc: Pavel Machek <pavel@ucw.cz>,
linux-kernel@vger.kernel.org, Andrew Morton <akpm@osdl.org>
Subject: Re: Some highmem pages still in use after shrink_all_memory()?
Date: Mon, 08 Mar 2004 10:39:32 +0100 [thread overview]
Message-ID: <1078738772.4678.5.camel@laptop.fenrus.com> (raw)
In-Reply-To: <20040308063639.GA20793@hexapodia.org>
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> Note that there are some applications for which it is a *bug* if an
> mlocked page gets written out to magnetic media. (gpg, for example.)
mlock() does not guarantee things not hitting magnetic media, just as
mlock() doesn't guarantee that the physical address of a page doesn't
change. mlock guarantees that you won't get hard pagefaults and that you
have guaranteed memory for the task at hand (eg for realtime apps and
oom-critical stuff)
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next prev parent reply other threads:[~2004-03-08 9:39 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-07 14:49 Pavel Machek
2004-03-08 0:40 ` Andrew Morton
2004-03-08 6:36 ` Andy Isaacson
2004-03-08 5:41 ` Nigel Cunningham
2004-03-08 9:13 ` Pavel Machek
2004-03-08 9:39 ` Arjan van de Ven [this message]
2004-03-08 15:09 ` Chris Friesen
2004-03-08 15:16 ` Arjan van de Ven
2004-03-08 15:35 ` Chris Friesen
2004-03-08 17:54 ` Zwane Mwaikambo
2004-03-08 16:36 ` Andy Isaacson
2004-03-08 18:34 ` Pavel Machek
2004-03-08 18:52 ` Andy Isaacson
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