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From: Peter Zijlstra <peterz@infradead.org>
To: Milton Miller <miltonm@bga.com>
Cc: akpm@linux-foundation.org, Anton Blanchard <anton@samba.org>,
	xiaoguangrong@cn.fujitsu.com, mingo@elte.hu, jaxboe@fusionio.com,
	npiggin@gmail.com, rusty@rustcorp.com.au, efault@gmx.de,
	Jan Beulich <JBeulich@novell.com>,
	Dimitri Sivanich <sivanich@sgi.com>,
	Tony Luck <tony.luck@intel.com>,
	torvalds@linux-foundation.org, paulmck@linux.vnet.ibm.com,
	benh@kernel.crashing.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/4 v3] smp_call_function_many issues from review
Date: Tue, 15 Mar 2011 21:39:29 +0100	[thread overview]
Message-ID: <1300221569.2250.15.camel@laptop> (raw)
In-Reply-To: <smp-call-function-intro-v3@mdm.bga.com>

On Tue, 2011-03-15 at 13:27 -0600, Milton Miller wrote:
> Picking up this thread from the beginning of Feburary,  I updated
> the comments in 3 and 4 based on Paul's review.  I have inserted
> my proposed alternative to Paul's additional patch as patch 2,
> and tweaked the changelog on 1.
> 
> [PATCH 1/4 v3] call_function_many: fix list delete vs add race
> [PATCH 2/4 v3] call_function_many: add missing ordering
> [PATCH 3/4 v3] smp_call_function_many: handle concurrent clearing of mask
> [PATCH 4/4 v3] smp_call_function_interrupt: use typedef and %pf
> 
> Peter Z acked a prior version of patch 1, and Mike Galbraith has
> done some stress testing on the combinaton of 1,3,4, and Paul's patch.
> 
> The prior posting of this series is available here:
> https://patchwork.kernel.org/patch/522021/
> https://patchwork.kernel.org/patch/522031/
> http://marc.info/?l=linux-kernel&m=129654439817236&w=2
> 
> And Paul's additional patch from review was here
> https://patchwork.kernel.org/patch/525891/
> 
> Looking forward, I would suggest 1 and 2 are required for stable, 3 may
> be suitable as it fixes races that otherwise requires cpumask copies
> as in 75c1c91cb92806f960fcd6e53d2a0c21f343081c ([IA64] eliminate race
> condition in smp_flush_tlb_mm).  By contrast 4 is just comments except
> for the %pS to %pf change.

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>

Very interesting that patch #2.


  parent reply	other threads:[~2011-03-15 20:37 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-12  4:07 [PATCH] smp_call_function_many SMP race Anton Blanchard
2011-01-17 18:17 ` Peter Zijlstra
2011-01-18 21:05   ` Milton Miller
2011-01-18 21:06     ` [PATCH 2/2] consolidate writes in smp_call_funtion_interrupt Milton Miller
2011-01-27 16:22       ` Peter Zijlstra
2011-01-27 21:59         ` Milton Miller
2011-01-29  0:20           ` call_function_many: fix list delete vs add race Milton Miller
2011-01-31  7:21             ` Mike Galbraith
2011-01-31 20:26               ` [PATCH] smp_call_function_many: handle concurrent clearing of mask Milton Miller
2011-02-01  3:15                 ` Mike Galbraith
2011-01-31 10:27             ` call_function_many: fix list delete vs add race Peter Zijlstra
2011-01-31 20:26               ` Milton Miller
2011-01-31 20:39                 ` Peter Zijlstra
2011-01-31 21:17             ` Peter Zijlstra
2011-01-31 21:36               ` Milton Miller
2011-02-01  0:22               ` Benjamin Herrenschmidt
2011-02-01  1:39                 ` Linus Torvalds
2011-02-01  2:18                   ` Paul E. McKenney
2011-02-01  2:43                     ` Linus Torvalds
2011-02-01  4:45                       ` Paul E. McKenney
2011-02-01  5:46                         ` Linus Torvalds
2011-02-01  6:18                           ` Benjamin Herrenschmidt
2011-02-01 14:13                           ` Paul E. McKenney
2011-02-01  6:16                       ` Benjamin Herrenschmidt
     [not found]             ` <ipi-list-reply@mdm.bga.com>
2011-02-01  7:12               ` [PATCH 1/3 v2] " Milton Miller
2011-02-01 22:00                 ` Paul E. McKenney
2011-02-01 22:00                   ` Milton Miller
2011-02-02  4:17                     ` Paul E. McKenney
2011-02-06 23:51                       ` Paul E. McKenney
2011-03-15 19:27                         ` [PATCH 0/4 v3] smp_call_function_many issues from review Milton Miller
2011-03-15 20:22                           ` Luck, Tony
2011-03-15 20:32                             ` Dimitri Sivanich
2011-03-15 20:39                           ` Peter Zijlstra [this message]
2011-03-16 17:55                           ` Linus Torvalds
2011-03-16 18:13                             ` Peter Zijlstra
2011-03-17  3:15                           ` Mike Galbraith
2011-02-07  8:12                       ` [PATCH 1/3 v2] call_function_many: fix list delete vs add race Mike Galbraith
2011-02-08 19:36                         ` Paul E. McKenney
2011-08-21  6:17                           ` Mike Galbraith
2011-02-02  6:22                     ` Mike Galbraith
2011-02-01  7:12               ` [PATCH 2/3 v2] smp_call_function_many: handle concurrent clearing of mask Milton Miller
2011-03-15 19:27               ` [PATCH 2/4 v3] call_function_many: add missing ordering Milton Miller
2011-03-16 12:06                 ` Paul E. McKenney
2011-03-15 19:27               ` [PATCH 1/4 v3] call_function_many: fix list delete vs add race Milton Miller
2011-03-15 19:27               ` [PATCH 4/4 v3] smp_call_function_interrupt: use typedef and %pf Milton Miller
2011-03-15 19:27               ` [PATCH 3/4 v3] smp_call_function_many: handle concurrent clearing of mask Milton Miller
2011-03-15 22:32                 ` Catalin Marinas
2011-03-16  7:52                 ` Jan Beulich
2011-01-18 21:07     ` [PATCH 1/2] smp_call_function_many SMP race Milton Miller
2011-01-20  0:41       ` Andrew Morton

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