From: Andi Kleen <ak@suse.de>
To: Chuck Ebbert <76306.1226@compuserve.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
Arjan van de Ven <arjan@infradead.org>,
Ingo Molnar <mingo@elte.hu>, Adrian Bunk <bunk@stusta.de>,
linux-kernel <linux-kernel@vger.kernel.org>,
Linus Torvalds <torvalds@osdl.org>, andrea <andrea@cpushare.com>
Subject: Re: [patch] let CONFIG_SECCOMP default to n II
Date: Thu, 13 Jul 2006 00:14:14 +0200 [thread overview]
Message-ID: <200607130014.14254.ak@suse.de> (raw)
In-Reply-To: <200607122357.48045.ak@suse.de>
On Wednesday 12 July 2006 23:57, Andi Kleen wrote:
>
> > We can just fold the TSC disable stuff into the new thread_flags test
> > at context-switch time:
>
> I don't think it will work because you need to check state of
> both previous and next task. The thread_flags test only checks the
> state of the next task.
Actually scratch that objection. It should work just fine and would
indeed turn it into zero overhead for the common case.
Still I don't think it's actually needed so there might be still
a good case to remove it.
-Andi
prev parent reply other threads:[~2006-07-12 22:14 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-12 21:37 [patch] let CONFIG_SECCOMP default to n Chuck Ebbert
2006-07-12 21:55 ` Linus Torvalds
2006-07-12 22:48 ` andrea
2006-07-12 21:57 ` Andi Kleen
2006-07-12 22:14 ` Andi Kleen [this message]
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