From: Peter Zijlstra <peterz@infradead.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>,
Andrew Morton <akpm@linux-foundation.org>,
LKML <linux-kernel@vger.kernel.org>,
Rusty Russell <rusty@rustcorp.com.au>,
npiggin@suse.de, Ingo Molnar <mingo@elte.hu>,
Thomas Gleixner <tglx@linutronix.de>,
Arjan van de Ven <arjan@infradead.org>,
jens.axboe@oracle.com
Subject: Re: [PATCH -v2] use per cpu data for single cpu ipi calls
Date: Thu, 29 Jan 2009 19:44:40 +0100 [thread overview]
Message-ID: <1233254680.4495.126.camel@laptop> (raw)
In-Reply-To: <alpine.LFD.2.00.0901291030510.3123@localhost.localdomain>
On Thu, 2009-01-29 at 10:39 -0800, Linus Torvalds wrote:
> But you're right, I'm still not seeing anything that looks _likely_ to be
> a problem. But I worry that it's something somebody may want to do.
Well, the kgdb case I looked at did exactly that, and that is a problem.
As for people wanting to do it, we have __smp_call_function_single() to
do just that, all you have to do is provide your own csd.
next prev parent reply other threads:[~2009-01-29 18:45 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-28 16:38 Buggy IPI and MTRR code on low memory Steven Rostedt
2009-01-28 16:41 ` Steven Rostedt
2009-01-28 16:46 ` Peter Zijlstra
2009-01-28 16:56 ` Steven Rostedt
2009-01-28 17:00 ` Peter Zijlstra
2009-01-28 17:24 ` Steven Rostedt
2009-01-28 18:20 ` Peter Zijlstra
2009-01-28 18:52 ` Steven Rostedt
2009-01-28 18:22 ` Arjan van de Ven
2009-01-28 18:34 ` Steven Rostedt
2009-01-28 21:12 ` Andrew Morton
2009-01-28 21:13 ` Andrew Morton
2009-01-28 21:23 ` Steven Rostedt
2009-01-28 22:07 ` Andrew Morton
2009-01-28 22:47 ` Steven Rostedt
2009-01-28 23:20 ` Andrew Morton
2009-01-28 23:50 ` Steven Rostedt
2009-01-28 23:25 ` Rusty Russell
2009-01-28 23:41 ` Steven Rostedt
2009-01-29 0:52 ` [PATCH] use per cpu data for single cpu ipi calls Steven Rostedt
2009-01-29 1:30 ` Andrew Morton
2009-01-29 1:56 ` Steven Rostedt
2009-01-29 8:49 ` Peter Zijlstra
2009-01-29 11:13 ` Ingo Molnar
2009-01-29 11:41 ` Peter Zijlstra
2009-01-29 13:42 ` Ingo Molnar
2009-01-29 14:07 ` Steven Rostedt
2009-01-29 15:08 ` [PATCH -v2] " Steven Rostedt
2009-01-29 15:33 ` Peter Zijlstra
2009-01-29 16:17 ` Ingo Molnar
2009-01-29 17:21 ` Linus Torvalds
2009-01-29 17:44 ` Steven Rostedt
2009-01-29 17:50 ` Steven Rostedt
2009-01-29 18:08 ` Linus Torvalds
2009-01-29 18:11 ` Steven Rostedt
2009-01-29 18:23 ` Peter Zijlstra
2009-01-29 18:31 ` Steven Rostedt
2009-01-29 18:39 ` Linus Torvalds
2009-01-29 18:44 ` Peter Zijlstra [this message]
2009-01-30 11:23 ` Jens Axboe
2009-01-30 12:32 ` [PATCH -v3] " Peter Zijlstra
2009-01-30 12:38 ` Jens Axboe
2009-01-30 12:48 ` Peter Zijlstra
2009-01-30 12:55 ` Jens Axboe
2009-01-30 12:56 ` Jens Axboe
2009-01-30 13:00 ` Peter Zijlstra
2009-01-30 13:02 ` [PATCH -v4] " Peter Zijlstra
2009-01-30 14:51 ` Ingo Molnar
2009-01-30 16:04 ` [PATCH -v3] " Linus Torvalds
2009-01-30 16:16 ` Peter Zijlstra
2009-01-31 8:44 ` Jens Axboe
2009-01-29 18:49 ` [PATCH -v2] " Ingo Molnar
2009-01-30 1:55 ` Rusty Russell
2009-01-29 17:47 ` Peter Zijlstra
2009-01-29 17:55 ` Peter Zijlstra
2009-01-29 18:08 ` Steven Rostedt
2009-01-30 1:11 ` Rusty Russell
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