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Subject: Re: [PATCH 6/10] i386 implementation of cpu bulk removal
From: Shaohua Li <shaohua.li@intel.com>
To: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Cc: lkml <linux-kernel@vger.kernel.org>, Srivatsa Vaddagiri <vatsa@in.ibm.com>,
       Ashok Raj <ashok.raj@intel.com>, Andrew Morton <akpm@osdl.org>
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	 <Pine.LNX.4.64.0605072301201.2496@montezuma.fsmlabs.com>
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Date: Mon, 08 May 2006 14:05:02 +0800
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On Sun, 2006-05-07 at 23:02 -0700, Zwane Mwaikambo wrote:
> On Mon, 8 May 2006, Shaohua Li wrote:
> 
> > +config BULK_CPU_REMOVE
> > +	bool "Support for bulk removal of CPUs (EXPERIMENTAL)"
> > +	depends on HOTPLUG_CPU && EXPERIMENTAL
> > +	help
> > +	  Say Y if need the ability to remove more than one cpu during cpu
> > +	  removal. Current mechanisms may be in-efficient when a NUMA
> > +	  node is being removed, which would involve removing one cpu at a
> > +	  time. This will let interrupts, timers and processes to be bound
> > +	  to a CPU that might be removed right after the current cpu is
> > +	  being offlined.
> > +
> 
> Hello Shaohua,
> 	Is this config option a temporary/staging thing?
I think it's temporary. Bulk cpu removal could be default of CPU
hotplug.

Thanks,
Shaohua