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From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
	mingo@kernel.org, linux-kernel@vger.kernel.org, tj@kernel.org,
	john.stultz@linaro.org, dimitrysh@google.com, romlem@google.com,
	ccross@google.com, tkjos@google.com
Subject: Re: [PATCH 2/2] locking/percpu-rwsem: Introduce bias knob
Date: Fri, 15 Jul 2016 08:38:40 -0700	[thread overview]
Message-ID: <20160715153840.GI7094@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160715134523.GB28589@redhat.com>

On Fri, Jul 15, 2016 at 03:45:24PM +0200, Oleg Nesterov wrote:
> On 07/15, Paul E. McKenney wrote:
> >
> > On Fri, Jul 15, 2016 at 03:27:09PM +0200, Oleg Nesterov wrote:
> > >
> > > Heh ;) I too think it should be renamed. I'd suggest
> > >
> > > 	__rcu_sync_enter(rss);
> > >
> > > although I do not really mind and agree with any name.
> >
> > Hmmm...  Why not just move the checks out into the caller?  That
> > would make the intent much more clear.
> 
> Hmm. which caller?

The ones associated with a percpu_rwsem_bias of PERCPU_RWSEM_READER.

							Thanx, Paul

  reply	other threads:[~2016-07-15 15:38 UTC|newest]

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-14 18:25 [PATCH 0/2] locking/percpu-rwsem: Optimizations/tweaks Peter Zijlstra
2016-07-14 18:25 ` [PATCH 1/2] locking/percpu-rwsem: Optimize readers and reduce global impact Peter Zijlstra
2016-07-15 16:30   ` Oleg Nesterov
2016-07-15 19:47     ` Peter Zijlstra
2016-07-18 18:23   ` kbuild test robot
2016-07-18 22:51   ` kbuild test robot
2016-07-14 18:25 ` [PATCH 2/2] locking/percpu-rwsem: Introduce bias knob Peter Zijlstra
2016-07-14 18:37   ` Peter Zijlstra
2016-07-14 18:43   ` Oleg Nesterov
2016-07-14 18:56     ` Peter Zijlstra
2016-07-14 19:20     ` Peter Zijlstra
2016-07-14 19:29       ` Paul E. McKenney
2016-07-14 19:38         ` Peter Zijlstra
2016-07-14 19:54           ` Paul E. McKenney
2016-07-15 13:27       ` Oleg Nesterov
2016-07-15 13:39         ` Paul E. McKenney
2016-07-15 13:45           ` Oleg Nesterov
2016-07-15 15:38             ` Paul E. McKenney [this message]
2016-07-15 16:49               ` Oleg Nesterov
2016-07-15 18:01                 ` Paul E. McKenney
2016-07-16 17:10                   ` [PATCH] rcu_sync: simplify the state machine, introduce __rcu_sync_enter() Oleg Nesterov
2016-07-16 18:40                     ` Oleg Nesterov
2016-07-18 11:54                     ` Peter Zijlstra
2016-07-18 13:44                       ` Oleg Nesterov
2016-07-19 20:50                     ` Paul E. McKenney
2016-07-20 15:13                       ` Oleg Nesterov
2016-07-20 20:58                         ` Paul E. McKenney
2016-07-21 17:34                           ` Oleg Nesterov
2016-07-20 17:16                       ` Oleg Nesterov
2016-07-20 21:31                         ` Paul E. McKenney
2016-07-21 17:34                           ` Oleg Nesterov
2016-07-22  3:26                             ` Paul E. McKenney
2016-07-25 17:01                               ` Oleg Nesterov
2016-07-25 17:05                                 ` John Stultz
2016-07-25 17:26                                   ` Oleg Nesterov
2016-08-09  8:48                                     ` Peter Zijlstra
2016-07-25 17:49                                 ` Paul E. McKenney
2016-07-15 13:42       ` [PATCH 2/2] locking/percpu-rwsem: Introduce bias knob Oleg Nesterov

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