From: Andrew Morton <akpm@digeo.com>
To: Nigel Cunningham <ncunningham@clear.net.nz>
Cc: cat@zip.com.au, pavel@ucw.cz, mbligh@aracnet.com,
gigerstyle@gmx.ch, geert@linux-m68k.org,
linux-kernel@vger.kernel.org
Subject: Re: Fix SWSUSP & !SWAP
Date: Wed, 23 Apr 2003 17:37:20 -0700 [thread overview]
Message-ID: <20030423173720.6cc5ee50.akpm@digeo.com> (raw)
In-Reply-To: <1051143408.4305.15.camel@laptop-linux>
Nigel Cunningham <ncunningham@clear.net.nz> wrote:
>
> On Thu, 2003-04-24 at 12:17, CaT wrote:
> > I'm curious. What does a swapfile solve that a swapdev does not? Either
> > way you need to prealloc the case (either have a chunky file in a
> > partition or a partition set aside) or you need to keep enough room
> > avail to fit the file when it's needed.
>
> Nothing but further bloat in swsusp :> With a swapfile, we need to know
> the location of the file (and be able to find it again when it changes,
> and know how to find the next block in the file system - it might be
> fragmented).
That's because swsusp is using the mm/page_io.c functions for suspend, but
is using the fs/buffer.c functions direct to the blockdev for resume.
If you can use the swapper_space a_ops for both suspend and resume (say:
"cleanup") then it will just work.
next prev parent reply other threads:[~2003-04-24 0:27 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-23 13:51 Fix SWSUSP & !SWAP Pavel Machek
2003-04-23 14:32 ` Geert Uytterhoeven
2003-04-23 14:47 ` Pavel Machek
2003-04-23 15:56 ` gigerstyle
2003-04-23 19:41 ` Nigel Cunningham
2003-04-23 20:36 ` Marc Giger
2003-04-23 22:25 ` Nigel Cunningham
2003-04-23 23:28 ` Martin J. Bligh
2003-04-23 23:58 ` Pavel Machek
2003-04-23 23:55 ` Martin J. Bligh
2003-04-24 0:07 ` Andrew Morton
2003-04-24 0:17 ` CaT
2003-04-24 0:16 ` Nigel Cunningham
2003-04-24 0:26 ` Randy.Dunlap
2003-04-24 0:31 ` CaT
2003-04-24 0:38 ` Andrew Morton
2003-04-24 0:54 ` CaT
2003-04-24 1:06 ` Andrew Morton
2003-04-24 8:48 ` John Bradford
2003-04-24 0:37 ` Andrew Morton [this message]
2003-04-24 9:12 ` Pavel Machek
2003-04-24 9:25 ` Andrew Morton
2003-04-24 9:35 ` Pavel Machek
2003-04-24 9:46 ` Andrew Morton
2003-04-24 11:13 ` Nigel Cunningham
2003-04-24 11:36 ` Andrew Morton
2003-04-24 14:26 ` Pavel Machek
2003-04-24 16:37 ` Andreas Dilger
2003-04-24 20:48 ` Pavel Machek
2003-04-24 21:46 ` Andreas Dilger
2003-04-25 1:09 ` Nigel Cunningham
2003-04-25 12:59 ` Pavel Machek
2003-04-25 16:20 ` Andreas Dilger
2003-04-25 18:28 ` Nigel Cunningham
2003-04-25 19:32 ` Jamie Lokier
2003-04-25 19:58 ` Andreas Dilger
2003-04-27 18:59 ` Pavel Machek
2003-04-24 11:36 ` Geert Uytterhoeven
2003-04-25 1:22 ` H. Peter Anvin
2003-04-25 1:19 ` Nigel Cunningham
2003-04-25 1:31 ` Hua Zhong
2003-04-25 19:41 ` H. Peter Anvin
2003-04-25 4:27 ` Andreas Dilger
2003-04-25 4:33 ` H. Peter Anvin
2003-04-24 0:25 ` Pavel Machek
2003-04-24 9:01 ` Andrew Morton
2003-04-24 9:14 ` Pavel Machek
2003-04-24 9:05 ` Jamie Lokier
2003-04-24 9:34 ` Pavel Machek
2003-04-24 15:22 ` Carl-Daniel Hailfinger
2003-04-24 8:00 ` Marc Giger
-- strict thread matches above, loose matches on Subject: below --
2003-04-23 23:47 Grover, Andrew
2003-04-24 0:03 ` Pavel Machek
2003-04-23 23:57 ` Martin J. Bligh
2003-04-24 0:25 ` Pavel Machek
2003-04-24 0:37 ` CaT
2003-04-24 0:49 ` Martin J. Bligh
2003-04-24 9:16 ` Pavel Machek
2003-04-24 0:02 ` Nigel Cunningham
2003-04-24 0:23 ` Pavel Machek
2003-04-24 0:45 ` Martin J. Bligh
2003-04-24 3:17 ` Nigel Cunningham
2003-04-24 4:37 ` Martin J. Bligh
2003-04-24 7:49 ` Marc Giger
2003-04-24 9:27 ` Pavel Machek
2003-04-24 3:49 ` David Ford
2003-04-24 6:54 ` Jörn Engel
2003-04-24 7:01 ` Elladan
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