From: Jonathan Corbet <corbet@lwn.net>
To: Andi Kleen <andi@firstfloor.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, andi@firstfloor.org,
viro@ZenIV.linux.org.uk, oleg@redhat.com,
linux-api@vger.kernel.org, alan@lxorguk.ukuu.org.uk
Subject: Re: [PATCH, RFC] Remove fasync() BKL usage, take 3325
Date: Thu, 22 Jan 2009 23:01:45 -0700 [thread overview]
Message-ID: <20090122230145.7e434dee@tpl> (raw)
In-Reply-To: <20090123055404.GL15750@one.firstfloor.org>
On Fri, 23 Jan 2009 06:54:04 +0100
Andi Kleen <andi@firstfloor.org> wrote:
> The state needs to be protected while the per driver ->fasync callback
> runs, otherwise the bit can get out of sync with what the driver
> thinks it is.
>
> Mind you imho the best way would be to move the bit manipulation for
> that into the drivers, but that would require to change them all.
You know, I'm not sure why I didn't look into that. Do we want drivers
reaching directly into struct file and making changes? Maybe a helper
would be better. Hmm, maybe we could call it fasync_helper() and it
could just do the right thing? Will investigate further...
jon
next prev parent reply other threads:[~2009-01-23 6:02 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-15 22:32 [PATCH, RFC] Remove fasync() BKL usage, take 3325 Jonathan Corbet
2009-01-22 14:51 ` Andrew Morton
2009-01-22 16:09 ` Andi Kleen
2009-01-23 5:21 ` Jonathan Corbet
2009-01-22 20:32 ` Christoph Hellwig
2009-01-23 4:56 ` Andi Kleen
2009-01-28 0:53 ` Andrew Morton
2009-01-28 0:55 ` Andrew Morton
2009-01-28 3:14 ` Oleg Nesterov
2009-01-28 3:57 ` Jonathan Corbet
2009-01-28 4:23 ` Oleg Nesterov
2009-01-28 14:13 ` Jonathan Corbet
2009-01-28 17:36 ` Christoph Hellwig
2009-01-28 17:44 ` Jonathan Corbet
2009-01-28 17:55 ` Christoph Hellwig
2009-01-28 18:13 ` Matt Mackall
2009-01-28 21:05 ` Jonathan Corbet
2009-01-28 18:14 ` David Daney
2009-01-29 14:37 ` Andi Kleen
2009-01-23 5:15 ` Jonathan Corbet
2009-01-23 5:31 ` Andrew Morton
2009-01-23 5:45 ` Matt Mackall
2009-01-23 6:15 ` Andi Kleen
2009-01-23 10:45 ` Bernd Petrovitsch
2009-01-23 5:54 ` Andi Kleen
2009-01-23 6:01 ` Jonathan Corbet [this message]
2009-01-23 6:57 ` Andrew Morton
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