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From: Peter Zijlstra <peterz@infradead.org>
To: Boqun Feng <boqun.feng@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>,
	mingo@kernel.org, linux-kernel@vger.kernel.org,
	paulmck@linux.vnet.ibm.com, corbet@lwn.net, mhocko@kernel.org,
	dhowells@redhat.com, torvalds@linux-foundation.org,
	will.deacon@arm.com
Subject: Re: [PATCH 4/4] locking: Introduce smp_cond_acquire()
Date: Wed, 11 Nov 2015 13:12:32 +0100	[thread overview]
Message-ID: <20151111121232.GN17308@twins.programming.kicks-ass.net> (raw)
In-Reply-To: <20151111093939.GA6314@fixme-laptop.cn.ibm.com>

On Wed, Nov 11, 2015 at 05:39:40PM +0800, Boqun Feng wrote:

> Just be curious, should spin_unlock_wait() semantically be an ACQUIRE?

I did wonder the same thing, it would simplify a number of things if
this were so.

  parent reply	other threads:[~2015-11-11 12:12 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-02 13:29 [PATCH 0/4] scheduler ordering bits Peter Zijlstra
2015-11-02 13:29 ` [PATCH 1/4] sched: Better document the try_to_wake_up() barriers Peter Zijlstra
2015-12-04  0:09   ` Byungchul Park
2015-12-04  0:58   ` Byungchul Park
2015-11-02 13:29 ` [PATCH 2/4] sched: Document Program-Order guarantees Peter Zijlstra
2015-11-02 20:27   ` Paul Turner
2015-11-02 20:34     ` Peter Zijlstra
2015-11-02 22:09       ` Paul Turner
2015-11-02 22:12         ` Peter Zijlstra
2015-11-20 10:02     ` Peter Zijlstra
2015-11-20 14:08       ` Boqun Feng
2015-11-20 14:18         ` Peter Zijlstra
2015-11-20 14:21           ` Boqun Feng
2015-11-20 19:41             ` Peter Zijlstra
2015-11-02 13:29 ` [PATCH 3/4] sched: Fix a race in try_to_wake_up() vs schedule() Peter Zijlstra
2015-11-02 13:29 ` [PATCH 4/4] locking: Introduce smp_cond_acquire() Peter Zijlstra
2015-11-02 13:57   ` Peter Zijlstra
2015-11-02 17:43     ` Will Deacon
2015-11-03  1:14       ` Paul E. McKenney
2015-11-03  1:25         ` Linus Torvalds
2015-11-02 17:42   ` Will Deacon
2015-11-02 18:08   ` Linus Torvalds
2015-11-02 18:37     ` Will Deacon
2015-11-02 19:17       ` Linus Torvalds
2015-11-02 19:57         ` Will Deacon
2015-11-02 20:23           ` Peter Zijlstra
2015-11-02 21:56         ` Peter Zijlstra
2015-11-03  1:57         ` Paul E. McKenney
2015-11-03 19:40           ` Linus Torvalds
2015-11-04  3:57             ` Paul E. McKenney
2015-11-04  4:43               ` Linus Torvalds
2015-11-04 12:54                 ` Paul E. McKenney
2015-11-02 20:36     ` David Howells
2015-11-02 20:40       ` Peter Zijlstra
2015-11-02 21:11       ` Linus Torvalds
2015-11-03 17:59   ` Oleg Nesterov
2015-11-03 18:23     ` Peter Zijlstra
2015-11-11  9:39     ` Boqun Feng
2015-11-11 10:34       ` Boqun Feng
2015-11-11 19:53         ` Oleg Nesterov
2015-11-12 13:50         ` Paul E. McKenney
2015-11-11 12:12       ` Peter Zijlstra [this message]
2015-11-11 19:39         ` Oleg Nesterov
2015-11-11 21:23           ` Linus Torvalds
2015-11-12  7:14           ` Boqun Feng
2015-11-12 10:28             ` Peter Zijlstra
2015-11-12 15:00             ` Oleg Nesterov
2015-11-12 14:40               ` Paul E. McKenney
2015-11-12 14:49                 ` Boqun Feng
2015-11-12 15:02                   ` Paul E. McKenney
2015-11-12 21:53                     ` Will Deacon
2015-11-12 14:50                 ` Peter Zijlstra
2015-11-12 15:01                   ` Paul E. McKenney
2015-11-12 15:08                     ` Peter Zijlstra
2015-11-12 15:20                       ` Paul E. McKenney
2015-11-12 21:25                         ` Will Deacon
2015-11-12 15:18               ` Boqun Feng
2015-11-12 18:38                 ` Oleg Nesterov
2015-11-12 18:02                   ` Peter Zijlstra
2015-11-12 19:33                     ` Oleg Nesterov
2015-11-12 18:59                       ` Paul E. McKenney
2015-11-12 21:33                         ` Will Deacon
2015-11-12 23:43                           ` Paul E. McKenney
2015-11-16 13:58                             ` Will Deacon
2015-11-12 18:21             ` Linus Torvalds
2015-11-12 22:09               ` Will Deacon
2015-11-16 15:56               ` Peter Zijlstra
2015-11-16 16:04                 ` Peter Zijlstra
2015-11-16 16:24                   ` Will Deacon
2015-11-16 16:44                     ` Paul E. McKenney
2015-11-16 16:46                       ` Will Deacon
2015-11-16 17:15                         ` Paul E. McKenney
2015-11-16 21:58                     ` Linus Torvalds
2015-11-17 11:51                       ` Will Deacon
2015-11-17 21:01                         ` Paul E. McKenney
2015-11-18 11:25                           ` Will Deacon
2015-11-19 18:01                             ` Will Deacon
2015-11-20 10:09                               ` Peter Zijlstra

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