From: Linus Torvalds <torvalds@transmeta.com>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Andrea Arcangeli <andrea@suse.de>, Ingo Molnar <mingo@elte.hu>,
linux-mm@kvack.org, "Stephen C. Tweedie" <sct@redhat.com>
Subject: Re: [highmem bug report against -test5 and -test6] Re: [PATCH] Re: simple FS application that hangs 2.4-test5, mem mgmt problem or FS buffer cache mgmt problem? (fwd)
Date: Mon, 2 Oct 2000 14:16:15 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.10.10010021414330.826-100000@penguin.transmeta.com> (raw)
In-Reply-To: <Pine.LNX.4.21.0010021658040.1067-100000@duckman.distro.conectiva>
On Mon, 2 Oct 2000, Rik van Riel wrote:
>
> Linus, I remember you saying some time ago that you would
> like to keep the buffer heads on a page around so we'd
> have them at the point where we need to swap out again.
Only if it actually simplifies the VM and FS code noticeably.
Right now the VFS code already has all the complexity to handle
re-creating the buffer heads, so there's nothing to be gained from wasting
memory on them.
But we could make it an implementation decision to _always_ have the
buffer heads hanging around, and simplify (and possibly speed up) the code
by having that rule. It's not the case now, though.
Linus
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next prev parent reply other threads:[~2000-10-02 21:16 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-02 19:35 Rik van Riel
2000-10-02 19:56 ` Andrea Arcangeli
2000-10-02 19:59 ` Rik van Riel
2000-10-02 20:17 ` Andrea Arcangeli
2000-10-02 20:24 ` Rik van Riel
2000-10-02 21:16 ` Linus Torvalds [this message]
2000-10-02 20:06 ` Linus Torvalds
2000-10-02 20:16 ` Rik van Riel
2000-10-02 20:25 ` Ingo Molnar
2000-10-02 20:45 ` Rik van Riel
2000-10-02 21:21 ` Linus Torvalds
2000-10-02 21:27 ` Rik van Riel
2000-10-02 21:19 ` Linus Torvalds
2000-10-02 21:23 ` Rik van Riel
2000-10-02 21:31 ` Linus Torvalds
2000-10-02 21:42 ` Rik van Riel
2000-10-02 21:58 ` Linus Torvalds
2000-10-02 22:08 ` Rik van Riel
2000-10-02 22:18 ` Andrea Arcangeli
2000-10-02 22:23 ` Rik van Riel
2000-10-02 23:06 ` Linus Torvalds
2000-10-02 23:12 ` Rik van Riel
2000-10-02 23:16 ` Linus Torvalds
2000-10-02 23:20 ` Andrea Arcangeli
2000-10-02 22:53 ` Linus Torvalds
2000-10-02 23:06 ` Rik van Riel
2000-10-02 23:14 ` Linus Torvalds
2000-10-02 21:57 ` Ingo Molnar
2000-10-02 21:52 ` Rik van Riel
2000-10-02 22:53 ` Ingo Molnar
2000-10-02 23:01 ` Rik van Riel
2000-10-02 23:10 ` Andrea Arcangeli
2000-10-02 23:29 ` Ingo Molnar
2000-10-02 23:25 ` Andrea Arcangeli
2000-10-02 23:32 ` Linus Torvalds
2000-10-03 12:05 ` Ingo Molnar
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