From: Manfred Spraul <manfred@colorfullife.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [RFC,PATCH] use nonatomic bitops for cpumask_t
Date: Sat, 29 May 2004 11:46:45 +0200 [thread overview]
Message-ID: <40B85C05.5080302@colorfullife.com> (raw)
In-Reply-To: <40B85071.8090402@colorfullife.com>
Manfred Spraul wrote:
> Hi,
>
> I'm checking for callers that rely on the atomicity of the bitops, but
> so far everyone has it's own locks.
One exception is the x86 tlb flush code, thus my patch is wrong. We
could add nonatomic __cpu_set and __cpu_clear bitops, but I'm not sure
if it's worth the effort, cpu bitops aren't that common
(kernel/rcupdate.c and balance_node could use the __ versions).
Sorry for the noise (and don't check who wrote the x86 tlb flush code)
--
Manfred
next prev parent reply other threads:[~2004-05-29 9:46 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-05-29 8:57 [RFC,PATCH] use nonatomic bitops for cpumask_t Manfred Spraul
2004-05-29 9:46 ` Manfred Spraul [this message]
-- strict thread matches above, loose matches on Subject: below --
2004-05-29 11:02 Mikael Pettersson
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