From: Paul Mackerras <paulus@samba.org>
To: Linus Torvalds <torvalds@linux-foundation.org>,
"Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>, Robin Holt <holt@sgi.com>,
"H. Peter Anvin" <hpa@zytor.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Russ Anderson <rja@sgi.com>, Shawn Guo <shawn.guo@linaro.org>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
the arch/x86 maintainers <x86@kernel.org>
Subject: Re: [PATCH] Do not force shutdown/reboot to boot cpu.
Date: Thu, 11 Apr 2013 15:31:06 +1000 [thread overview]
Message-ID: <20130411053106.GA9042@drongo> (raw)
In-Reply-To: <CA+55aFw8bRwMRm8cWtTGRvd1AEP-LR7pYL-pEoBkHqJUuJrjSg@mail.gmail.com>
On Wed, Apr 10, 2013 at 08:10:05AM -0700, Linus Torvalds wrote:
> The optimal solution would be to just speed up the
> disable_nonboot_cpus() code so much that it isn't an issue. That would
> be good for suspending too, although I guess suspend isn't a big issue
> if you have a thousand CPU's.
>
> Has anybody checked whether we could do the cpu_down() on non-boot
> CPU's in parallel? Right now we serialize the thing completely, with
I thought Srivatsa S. Bhat had a patchset that did exactly that.
Srivatsa?
Paul.
next prev parent reply other threads:[~2013-04-11 5:31 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-03 19:37 [PATCH] Do not force shutdown/reboot to boot cpu Robin Holt
2013-04-08 15:57 ` Ingo Molnar
2013-04-08 16:11 ` H. Peter Anvin
2013-04-08 16:59 ` Robin Holt
2013-04-10 11:16 ` Ingo Molnar
2013-04-10 14:01 ` Robin Holt
2013-04-10 15:10 ` Linus Torvalds
2013-04-10 15:29 ` Russ Anderson
2013-04-10 16:59 ` Ingo Molnar
2013-04-10 17:14 ` Robin Holt
2013-04-10 17:22 ` Ingo Molnar
2013-04-10 17:55 ` Robin Holt
2013-04-10 19:00 ` Robin Holt
2013-04-11 8:57 ` Ingo Molnar
2013-04-11 11:34 ` Robin Holt
2013-04-11 12:00 ` Ingo Molnar
2013-04-11 12:03 ` Robin Holt
2013-04-11 12:08 ` Robin Holt
2013-04-11 12:14 ` Ingo Molnar
2013-04-10 17:58 ` H. Peter Anvin
2013-04-10 23:02 ` Russ Anderson
2013-04-10 22:29 ` Russ Anderson
2013-04-11 5:31 ` Paul Mackerras [this message]
2013-04-11 12:45 ` Bulk CPU Hotplug (Was Re: [PATCH] Do not force shutdown/reboot to boot cpu.) Srivatsa S. Bhat
2013-04-11 13:48 ` Robin Holt
2013-04-12 5:37 ` Ingo Molnar
2013-04-12 6:09 ` Srivatsa S. Bhat
2013-04-12 9:31 ` Robin Holt
2013-04-12 10:01 ` Robin Holt
2013-04-13 16:30 ` Oleg Nesterov
2013-04-15 16:04 ` Robin Holt
2013-04-15 16:09 ` Oleg Nesterov
2013-04-15 16:10 ` Robin Holt
2013-04-13 17:01 ` Srivatsa S. Bhat
2013-04-15 10:16 ` Ingo Molnar
2013-04-15 12:02 ` Robin Holt
2013-04-15 15:59 ` Robin Holt
2013-04-16 9:40 ` Ingo Molnar
2013-04-11 14:23 ` Russ Anderson
2013-04-11 14:45 ` Srivatsa S. Bhat
2013-04-11 20:08 ` Russ Anderson
2013-04-11 20:17 ` Srivatsa S. Bhat
2013-04-11 21:08 ` Robin Holt
2013-04-08 16:54 ` [PATCH] Do not force shutdown/reboot to boot cpu Robin Holt
2013-04-08 17:07 ` Russ Anderson
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