From: Andrew Morton <akpm@osdl.org>
To: Pavel Machek <pavel@ucw.cz>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Some highmem pages still in use after shrink_all_memory()?
Date: Sun, 7 Mar 2004 16:40:52 -0800 [thread overview]
Message-ID: <20040307164052.0c8a212b.akpm@osdl.org> (raw)
In-Reply-To: <20040307144921.GA189@elf.ucw.cz>
Pavel Machek <pavel@ucw.cz> wrote:
>
> Hi!
>
> For swsusp, I need to free as much memory as possible. Well, and it
> would be great if no highmem pages remained, so that I would not have
> to deal with that. Is that possible?
No, it isn't. There are pagetable pages and mlocked user pages which we
cannot do anything with.
We could perhaps swap out the mlocked pages anyway if a suspend is in
progress, but the highmem pagetable pages are not presently reclaimed
by the VM.
next prev parent reply other threads:[~2004-03-08 0:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-03-07 14:49 Some highmem pages still in use after shrink_all_memory()? Pavel Machek
2004-03-08 0:40 ` Andrew Morton [this message]
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
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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