From: Andrew Morton <akpm@zip.com.au>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
Rik van Riel <riel@conectiva.com.br>
Subject: Re: [patch 2/13] remove pages from the LRU in __free_pages_ok()
Date: Sun, 28 Jul 2002 17:59:52 -0700 [thread overview]
Message-ID: <3D449388.7CE9A47A@zip.com.au> (raw)
In-Reply-To: Pine.LNX.4.44.0207281733370.8208-100000@home.transmeta.com
Linus Torvalds wrote:
>
> On Sun, 28 Jul 2002, Andrew Morton wrote:
> >
> > OK. This means that put_page() against userspace-mapped pages
> > is to be avoided.
>
> Yes. I think we've gotten most of it, and I just fixed the
> access_process_vm() thing in my tree.
OK. Please do the smbfs one as well. That's an outright
race with truncate now. Because we took the lru_cache_del()
out of truncate_complete_page() in the rmap merge.
And we took the lru_cache_del() out of truncate_complete_page()
because, err, I forget. There was a situation in which the page
could still be mapped into process pagetables, and the lru_cache_del()
would have left it unswappable until process exit.
Rik, can you remember the exact scenario?
-
next prev parent reply other threads:[~2002-07-29 0:47 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-28 7:32 [patch 2/13] remove pages from the LRU in __free_pages_ok() Andrew Morton
2002-07-28 23:54 ` Linus Torvalds
2002-07-29 0:32 ` Andrew Morton
2002-07-29 0:37 ` Linus Torvalds
2002-07-29 0:59 ` Andrew Morton [this message]
2002-07-29 0:59 ` Rik van Riel
2002-07-29 2:50 ` David S. Miller
2002-07-29 3:51 ` Linus Torvalds
2002-07-29 3:43 ` David S. Miller
2002-07-29 4:21 ` Linus Torvalds
2002-07-29 5:43 ` David S. Miller
2002-07-29 6:16 ` Linus Torvalds
2002-07-29 6:10 ` David S. Miller
2002-07-29 6:27 ` Linus Torvalds
2002-07-29 6:59 ` Andrew Morton
2002-07-30 11:30 ` Ed Tomlinson
[not found] ` <200208011942.49342.tomlins@cam.org>
[not found] ` <3D49C951.AB7C527E@zip.com.au>
2002-08-03 19:27 ` [PATCH] slablru for linux-2.5 bk tree Ed Tomlinson
2002-08-03 19:27 ` Ed Tomlinson
2002-08-03 20:43 ` Rik van Riel
2002-08-03 20:43 ` Rik van Riel
2002-08-04 3:17 ` Andrew Morton
2002-08-04 3:17 ` Andrew Morton
2002-07-29 8:35 ` [patch 2/13] remove pages from the LRU in __free_pages_ok() Rik van Riel
2002-07-29 4:25 ` Andrew Morton
2002-07-29 4:28 ` Linus Torvalds
2002-07-29 4:52 ` Andrew Morton
2002-07-29 4:50 ` Linus Torvalds
2002-07-29 5:15 ` Andrew Morton
2002-07-29 4:17 ` Andrew Morton
2002-07-29 4:23 ` Linus Torvalds
2002-07-29 5:43 ` David S. Miller
2002-07-29 6:24 ` Paul Mackerras
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