From: David Woodhouse <dwmw2@infradead.org>
To: linux-kernel@vger.kernel.org
Subject: Re: [ANNOUNCE] Kernel Janitor's TODO list
Date: Tue, 30 Jan 2001 17:10:39 +0000 [thread overview]
Message-ID: <11875.980874639@redhat.com> (raw)
In-Reply-To: <Mdiqd.A.qe.yEvd6@dinero.interactivesi.com>
In-Reply-To: <Mdiqd.A.qe.yEvd6@dinero.interactivesi.com> <Pine.LNX.4.21.0101291018080.5353-100000@ns-01.hislinuxbox.com> <Pine.LNX.4.21.0101291018080.5353-100000@ns-01.hislinuxbox.com>
ttabi@interactivesi.com said:
> What is wrong with sleep_on()?
Are you asking me? If so, why did I not receive a copy in my inbox? If I
want to filter duplicates locally, I can. I don't.
It's almost impossible to use it safely, and the few ways you _can_ use it
safely are frowned upon, because they mostly involve using the BKL, usage of
which is slowly being phased out in favour of finer-grained locking.
This kind of code is far too common:
if (!event) {
/* BUT WHAT IF THE EVENT ARRIVES _NOW_? */
sleep_on(&event_wait);
}
--
dwmw2
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next prev parent reply other threads:[~2001-01-30 17:11 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-28 16:14 [ANNOUNCE] Kernel Janitor's TODO list Manfred Spraul
2001-01-28 14:36 ` Arnaldo Carvalho de Melo
2001-01-28 16:45 ` Manfred Spraul
2001-01-28 17:07 ` David Woodhouse
2001-01-28 17:40 ` Manfred Spraul
2001-01-28 18:51 ` Roman Zippel
2001-01-29 17:01 ` Timur Tabi
2001-01-29 17:10 ` John Levon
2001-01-29 18:27 ` David D.W. Downey
2001-01-29 20:44 ` davej
2001-01-29 20:51 ` Timur Tabi
2001-01-29 20:56 ` Rasmus Andersen
2001-01-30 0:29 ` Peter Samuelson
2001-01-30 0:20 ` Ingo Oeser
2001-01-30 11:11 ` David Woodhouse
2001-01-30 16:52 ` Timur Tabi
2001-01-31 0:06 ` Daniel Phillips
2001-01-31 0:09 ` Timur Tabi
2001-01-31 9:14 ` David Woodhouse
2001-01-30 17:10 ` David Woodhouse [this message]
2001-01-29 17:26 ` Andi Kleen
2001-01-29 19:47 ` Roman Zippel
2001-01-29 20:35 ` Andi Kleen
2001-02-16 14:29 ` Andrea Arcangeli
2001-02-16 14:26 ` Andrea Arcangeli
2001-01-31 17:57 ` Alan Cox
2001-01-31 19:15 ` Manfred Spraul
-- strict thread matches above, loose matches on Subject: below --
2001-01-30 1:22 Rusty Russell
2001-01-30 3:08 ` Andrew Morton
2001-01-27 17:11 Arnaldo Carvalho de Melo
2001-01-28 15:20 ` David Woodhouse
2001-01-28 14:03 ` Arnaldo Carvalho de Melo
2001-01-28 15:49 ` Michael H. Warfield
2001-01-28 16:13 ` Andrew Morton
2001-01-28 14:28 ` Arnaldo Carvalho de Melo
2001-01-28 14:33 ` Arnaldo Carvalho de Melo
2001-01-30 1:05 ` Rusty Russell
2001-01-30 11:19 ` Daniel Phillips
2001-01-30 17:49 ` Daniel Phillips
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