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From: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
To: Rusty Russell <rusty@rustcorp.com.au>
Cc: Ingo Molnar <mingo@elte.hu>, Mike Travis <travis@sgi.com>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH -tip/cpus4096-v2] cpumask: fix cpumask of call_function_data
Date: Thu, 30 Oct 2008 10:44:29 -0700	[thread overview]
Message-ID: <4909F27D.7000701@ct.jp.nec.com> (raw)
In-Reply-To: <200810270940.21617.rusty@rustcorp.com.au>

Rusty Russell wrote:
...
> From: Rusty Russell <rusty@rustcorp.com.au>
> cpumask: smp_call_function_many()
> 
> Actually change smp_call_function_mask() to smp_call_function_many().
> 
> S390 has its own version, so we do trivial conversion on that too.
> 
> We have to do some dancing to figure out if 0 or 1 other cpus are in
> the mask supplied and the online mask without allocating a tmp
> cpumask.  It's still fairly cheap.
> 
> We allocate the cpumask at the end of the call_function_data
> structure: if allocation fails we fallback to smp_call_function_single
> rather than using the baroque quiescing code.
> 
> (Thanks to Hiroshi Shimamoto for spotting several bugs in previous versions!)
> 
> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
> Signed-off-by: Mike Travis <travis@sgi.com>
> Cc: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
> Cc: schwidefsky@de.ibm.com
> Cc: heiko.carstens@de.ibm.com

Hi Rusty,

I'd like to know which tree this patch is against for.

thanks,
Hiroshi Shimamoto

  reply	other threads:[~2008-10-30 17:44 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-24  4:47 [PATCH -tip/cpus4096-v2] cpumask: fix cpumask of call_function_data Hiroshi Shimamoto
2008-10-24 11:05 ` Rusty Russell
2008-10-24 21:46   ` Hiroshi Shimamoto
2008-10-26 22:40     ` Rusty Russell
2008-10-30 17:44       ` Hiroshi Shimamoto [this message]
2008-10-24 11:15 ` Rusty Russell
2008-10-27 12:55   ` Ingo Molnar
2008-10-27 12:59     ` Ingo Molnar
2008-10-27 13:02       ` Ingo Molnar
2008-10-27 13:32       ` Ingo Molnar
2008-10-27 23:07         ` Hiroshi Shimamoto
2008-10-28  0:46           ` Rusty Russell
2008-10-27 22:21     ` Rusty Russell

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