From: Linus Torvalds <torvalds@linux-foundation.org>
To: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: Andi Kleen <andi@firstfloor.org>, linux-kernel@vger.kernel.org
Subject: Re: [GIT PULL] Please pull NFS client bugfixes....
Date: Thu, 7 Jan 2010 16:34:33 -0800 (PST) [thread overview]
Message-ID: <alpine.LFD.2.00.1001071633200.7821@localhost.localdomain> (raw)
In-Reply-To: <1262909682.2659.45.camel@localhost>
On Thu, 7 Jan 2010, Trond Myklebust wrote:
>
> Yes. I want to pursue Peter Zijlstra's patches, which split up the mmap
> function into a set of parts which require the mmap_sem, and other parts
> which don't, and that adds a filesystem callback that allows for
> revalidation to occur outside the mmap_sem.
I'm sorry, but that just sounds STUPID.
Why?
Because it means that you can trivially take page faults before the thing
is validated (think threads).
If that is ok, then why do the revalidate at all? Just do the open/close
consistency and validate at open time, not mmap time.
Linus
next prev parent reply other threads:[~2010-01-08 0:35 UTC|newest]
Thread overview: 119+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-07 20:29 [GIT PULL] Please pull NFS client bugfixes Trond Myklebust
2010-01-07 21:00 ` Andi Kleen
2010-01-07 21:23 ` Peter Staubach
2010-01-07 21:35 ` Andi Kleen
2010-01-07 21:53 ` Trond Myklebust
2010-01-07 23:51 ` Andi Kleen
2010-01-08 0:14 ` Trond Myklebust
2010-01-08 0:34 ` Linus Torvalds [this message]
2010-01-08 0:45 ` Andi Kleen
2010-01-08 1:03 ` Trond Myklebust
2010-01-08 1:03 ` Trond Myklebust
2010-01-08 1:12 ` Linus Torvalds
2010-01-08 1:22 ` Trond Myklebust
2010-01-08 1:26 ` Trond Myklebust
2010-01-09 0:56 ` [RFC PATCH 0/2] Fix up the NFS mmap code Trond Myklebust
2010-01-09 0:56 ` [RFC PATCH 2/2] NFS: Fix a potential deadlock in nfs_file_mmap() Trond Myklebust
2010-01-09 1:54 ` Al Viro
2010-01-09 1:54 ` Al Viro
2010-01-09 0:56 ` [RFC PATCH 1/2] VFS: Add a mmap_file() callback to struct file_operations Trond Myklebust
2010-01-09 0:56 ` Trond Myklebust
2010-01-09 1:17 ` [RFC PATCH 0/2] Fix up the NFS mmap code Linus Torvalds
2010-01-09 1:17 ` Linus Torvalds
2010-01-09 1:38 ` Al Viro
2010-01-09 1:38 ` Al Viro
2010-01-09 1:46 ` Al Viro
2010-01-09 1:57 ` Linus Torvalds
2010-01-09 2:11 ` Al Viro
2010-01-09 2:11 ` Al Viro
2010-01-09 2:22 ` Linus Torvalds
2010-01-09 2:30 ` Al Viro
2010-01-09 2:30 ` Al Viro
2010-01-09 2:40 ` Al Viro
2010-01-09 2:43 ` Al Viro
2010-01-10 2:00 ` Andi Kleen
2010-01-10 2:00 ` Andi Kleen
2010-01-08 1:30 ` [GIT PULL] Please pull NFS client bugfixes Linus Torvalds
2010-01-08 1:35 ` Linus Torvalds
2010-01-08 2:00 ` Linus Torvalds
2010-01-14 13:18 ` Peter Zijlstra
2010-01-08 5:19 ` Andi Kleen
2010-01-08 1:22 ` Linus Torvalds
2010-01-08 0:43 ` Andi Kleen
-- strict thread matches above, loose matches on Subject: below --
2023-01-07 18:09 Trond Myklebust
2023-01-07 18:43 ` pr-tracker-bot
2022-09-12 21:34 Trond Myklebust
2022-09-12 21:57 ` pr-tracker-bot
2021-01-12 14:31 Trond Myklebust
2021-01-12 18:00 ` pr-tracker-bot
2020-09-28 17:27 Trond Myklebust
2020-09-28 18:16 ` pr-tracker-bot
2020-05-15 21:00 Trond Myklebust
2020-05-15 21:10 ` pr-tracker-bot
2020-05-02 13:35 Trond Myklebust
2020-05-02 18:45 ` pr-tracker-bot
2019-08-27 19:26 Trond Myklebust
2019-08-27 20:55 ` pr-tracker-bot
2019-08-08 21:26 Trond Myklebust
2019-08-09 1:30 ` pr-tracker-bot
2019-06-05 21:02 Schumaker, Anna
2019-04-13 14:56 Trond Myklebust
2019-04-13 22:00 ` pr-tracker-bot
2018-12-19 16:49 Trond Myklebust
2018-12-20 2:50 ` pr-tracker-bot
2018-12-20 15:23 ` Geert Uytterhoeven
2018-03-12 17:29 Trond Myklebust
2018-03-12 17:29 ` Trond Myklebust
2018-02-25 17:02 Trond Myklebust
2018-02-25 17:02 ` Trond Myklebust
2017-01-28 17:04 Trond Myklebust
2017-01-28 17:04 ` Trond Myklebust
2017-01-16 20:14 Trond Myklebust
2017-01-16 20:14 ` Trond Myklebust
2016-10-21 20:30 Anna Schumaker
2015-10-07 2:52 Trond Myklebust
2015-09-25 15:14 Trond Myklebust
2015-07-28 16:03 Trond Myklebust
2015-03-06 3:46 Trond Myklebust
2015-01-29 21:37 Trond Myklebust
2015-01-16 14:35 Trond Myklebust
2014-11-14 23:04 Trond Myklebust
2014-09-19 19:32 Trond Myklebust
2014-01-31 21:41 Trond Myklebust
2013-12-05 17:20 Trond Myklebust
2013-11-16 21:09 Myklebust, Trond
2013-09-30 22:02 Myklebust, Trond
2013-09-30 22:02 ` Myklebust, Trond
2013-05-26 19:29 Myklebust, Trond
2013-03-26 18:26 Myklebust, Trond
2013-03-03 0:08 Myklebust, Trond
2013-02-21 3:38 Myklebust, Trond
2013-01-07 15:45 Myklebust, Trond
2012-11-03 19:48 Myklebust, Trond
2012-11-03 19:48 ` Myklebust, Trond
2012-10-22 17:42 Myklebust, Trond
2012-10-22 17:42 ` Myklebust, Trond
2012-09-12 19:19 Myklebust, Trond
2012-09-12 19:19 ` Myklebust, Trond
2012-07-13 15:14 Myklebust, Trond
2012-07-13 15:14 ` Myklebust, Trond
2012-05-02 3:57 Myklebust, Trond
2012-05-02 3:57 ` Myklebust, Trond
2012-04-24 20:18 [GIT PULL] please " Myklebust, Trond
2012-04-24 20:18 ` Myklebust, Trond
2011-12-20 6:15 [GIT PULL] Please " Trond Myklebust
2011-11-22 11:50 Trond Myklebust
2011-08-19 1:05 Trond Myklebust
2011-07-12 23:30 Trond Myklebust
2011-05-13 20:23 Trond Myklebust
2011-04-08 18:40 [GIT PULL] please " Trond Myklebust
2011-03-14 18:09 [GIT PULL] Please " Trond Myklebust
2010-11-26 18:56 Trond Myklebust
2010-05-26 19:42 Trond Myklebust
2010-05-07 2:22 Trond Myklebust
2010-04-29 16:48 Trond Myklebust
2010-03-23 17:00 Trond Myklebust
2010-03-17 21:55 Trond Myklebust
2010-02-04 19:10 Trond Myklebust
2009-05-26 19:06 Trond Myklebust
2009-05-26 19:06 ` Trond Myklebust
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