From: "Stephen C. Tweedie" <sct@redhat.com>
To: Jamie Lokier <jamie.lokier@cern.ch>
Cc: Chuck Lever <cel@monkey.org>,
linux-mm@kvack.org, "Stephen C. Tweedie" <sct@redhat.com>
Subject: Re: madvise (MADV_FREE)
Date: Wed, 22 Mar 2000 22:44:08 +0000 [thread overview]
Message-ID: <20000322224408.I2850@redhat.com> (raw)
In-Reply-To: <20000322233147.A31795@pcep-jamie.cern.ch>; from jamie.lokier@cern.ch on Wed, Mar 22, 2000 at 11:31:47PM +0100
Hi,
On Wed, Mar 22, 2000 at 11:31:47PM +0100, Jamie Lokier wrote:
>
> No they don't. MADV_DONTNEED always discards private modifications.
> (BTW I think it should be flushing the swap cache while it's at it).
If it is the last user of the page --- ie. if PG_SwapCache is set and
the refcount of the page is one --- then it will do so anyway, because
when I added that swap cache code I made sure that zap_page_range()
does a free_page_and_swap_cache() when freeing pages.
--Stephen
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next prev parent reply other threads:[~2000-03-22 22:44 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20000320135939.A3390@pcep-jamie.cern.ch>
2000-03-20 19:09 ` MADV_SPACEAVAIL and MADV_FREE in pre2-3 Chuck Lever
2000-03-21 1:20 ` madvise (MADV_FREE) Jamie Lokier
2000-03-21 2:24 ` William J. Earl
2000-03-21 14:08 ` Jamie Lokier
2000-03-22 16:24 ` Chuck Lever
2000-03-22 18:05 ` Jamie Lokier
2000-03-22 21:39 ` Chuck Lever
2000-03-22 22:31 ` Jamie Lokier
2000-03-22 22:44 ` Stephen C. Tweedie [this message]
2000-03-23 18:53 ` Chuck Lever
2000-03-24 0:00 ` /dev/recycle Jamie Lokier
2000-03-24 9:14 ` /dev/recycle Christoph Rohland
2000-03-24 13:10 ` /dev/recycle Jamie Lokier
2000-03-24 13:54 ` /dev/recycle Christoph Rohland
2000-03-24 14:17 ` /dev/recycle Jamie Lokier
2000-03-24 17:40 ` /dev/recycle Christoph Rohland
2000-03-24 18:13 ` /dev/recycle Jamie Lokier
2000-03-25 8:35 ` /dev/recycle Christoph Rohland
2000-03-28 0:48 ` /dev/recycle Chuck Lever
2000-03-24 0:21 ` madvise (MADV_FREE) Jamie Lokier
2000-03-24 7:21 ` lars brinkhoff
2000-03-24 17:42 ` Jeff Dike
2000-03-24 16:49 ` Jamie Lokier
2000-03-24 17:08 ` Stephen C. Tweedie
2000-03-24 19:58 ` Jeff Dike
2000-03-25 0:30 ` Stephen C. Tweedie
2000-03-22 22:33 ` Stephen C. Tweedie
2000-03-22 22:45 ` Jamie Lokier
2000-03-22 22:48 ` Stephen C. Tweedie
2000-03-22 22:55 ` Q. about swap-cache orphans Jamie Lokier
2000-03-22 22:58 ` Stephen C. Tweedie
2000-03-22 18:15 ` madvise (MADV_FREE) Christoph Rohland
2000-03-22 18:30 ` Jamie Lokier
2000-03-23 16:56 ` Christoph Rohland
2000-03-21 1:29 ` MADV_DONTNEED Jamie Lokier
2000-03-22 17:04 ` MADV_DONTNEED Chuck Lever
2000-03-22 17:10 ` MADV_DONTNEED Stephen C. Tweedie
2000-03-22 17:32 ` MADV_DONTNEED Jamie Lokier
2000-03-22 17:33 ` MADV_DONTNEED Jamie Lokier
2000-03-22 17:37 ` MADV_DONTNEED Stephen C. Tweedie
2000-03-22 17:43 ` MADV_DONTNEED Jamie Lokier
2000-03-22 21:54 ` MADV_DONTNEED Chuck Lever
2000-03-22 22:41 ` MADV_DONTNEED Jamie Lokier
2000-03-23 19:13 ` MADV_DONTNEED James Antill
2000-03-21 1:47 ` Extensions to mincore Jamie Lokier
2000-03-21 9:11 ` Eric W. Biederman
2000-03-21 9:40 ` lars brinkhoff
2000-03-21 11:34 ` Stephen C. Tweedie
2000-03-21 15:15 ` Jamie Lokier
2000-03-21 15:41 ` Stephen C. Tweedie
2000-03-21 15:55 ` Jamie Lokier
2000-03-21 16:08 ` Stephen C. Tweedie
2000-03-21 16:48 ` Jamie Lokier
2000-03-22 7:36 ` Eric W. Biederman
2000-03-21 1:50 ` MADV flags as mmap options Jamie Lokier
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