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From: Peter Zijlstra <peterz@infradead.org>
To: linux-kernel@vger.kernel.org, torvalds@linux-foundation.org,
	manfred@colorfullife.com, dave@stgolabs.net,
	paulmck@linux.vnet.ibm.com, will.deacon@arm.com
Cc: boqun.feng@gmail.com, Waiman.Long@hpe.com, tj@kernel.org,
	pablo@netfilter.org, kaber@trash.net, davem@davemloft.net,
	oleg@redhat.com, netfilter-devel@vger.kernel.org,
	sasha.levin@oracle.com, hofrat@osadl.org
Subject: [RFC][PATCH 0/3] spin_unlock_wait and assorted borkage
Date: Tue, 24 May 2016 16:27:23 +0200	[thread overview]
Message-ID: <20160524142723.178148277@infradead.org> (raw)

As per recent discussions spin_unlock_wait() has an unintuitive 'feature'.

  lkml.kernel.org/r/20160520053926.GC31084@linux-uzut.site

These patches pull the existing solution into generic code; annotate all
spin_unlock_wait() users and fix nf_conntrack more.

The alternative -- putting smp_acquire__after_ctrl_dep() into
spin_unlock_wait() can be done later if desired, now that al users are audited
and corrected.

Please (very) carefully consider.

             reply	other threads:[~2016-05-24 14:38 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-05-24 14:27 Peter Zijlstra [this message]
2016-05-24 14:27 ` [RFC][PATCH 1/3] locking: Introduce smp_acquire__after_ctrl_dep Peter Zijlstra
     [not found]   ` <57451581.6000700@hpe.com>
2016-05-25  4:53     ` Paul E. McKenney
2016-05-25  5:39       ` Boqun Feng
2016-05-25 14:29         ` Paul E. McKenney
2016-05-25 15:20       ` Waiman Long
2016-05-25 15:57         ` Paul E. McKenney
2016-05-25 16:28           ` Peter Zijlstra
2016-05-25 16:54             ` Linus Torvalds
2016-05-25 18:59               ` Paul E. McKenney
2016-06-03  9:18           ` Vineet Gupta
2016-06-03  9:38             ` Peter Zijlstra
2016-06-03 12:08               ` Paul E. McKenney
2016-06-03 12:23                 ` Peter Zijlstra
2016-06-03 12:27                   ` Peter Zijlstra
2016-06-03 13:33                     ` Paul E. McKenney
2016-06-03 13:32                   ` Paul E. McKenney
2016-06-03 13:45                     ` Will Deacon
2016-06-04 15:29                       ` Paul E. McKenney
2016-06-06 17:28                         ` Paul E. McKenney
2016-06-07  7:15                           ` Peter Zijlstra
2016-06-07 12:41                             ` Hannes Frederic Sowa
2016-06-07 13:06                               ` Paul E. McKenney
2016-06-07 14:59                                 ` Hannes Frederic Sowa
2016-06-07 15:23                                   ` Paul E. McKenney
2016-06-07 17:48                                     ` Peter Zijlstra
2016-06-07 18:44                                       ` Paul E. McKenney
2016-06-07 18:01                                     ` Will Deacon
2016-06-07 18:44                                       ` Paul E. McKenney
2016-06-07 18:54                                       ` Paul E. McKenney
2016-06-07 18:37                                     ` Hannes Frederic Sowa
2016-05-24 14:27 ` [RFC][PATCH 2/3] locking: Annotate spin_unlock_wait() users Peter Zijlstra
2016-05-24 16:17   ` Linus Torvalds
2016-05-24 16:22     ` Tejun Heo
2016-05-24 16:58       ` Peter Zijlstra
2016-05-25 19:28         ` Tejun Heo
2016-05-24 16:57     ` Peter Zijlstra
2016-05-24 14:27 ` [RFC][PATCH 3/3] locking,netfilter: Fix nf_conntrack_lock() Peter Zijlstra
2016-05-24 14:42   ` Peter Zijlstra
     [not found]   ` <3e1671fc-be0f-bc95-4fbb-6bfc56e6c15b@colorfullife.com>
2016-05-26 13:54     ` Peter Zijlstra

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