Re: [PATCH] rcu: Is it safe to enter an RCU read-side critical
section?
[Posted September 11, 2013 by corbet]
| From: |
| "Paul E. McKenney" <paulmck-AT-linux.vnet.ibm.com> |
| To: |
| Steven Rostedt <rostedt-AT-goodmis.org> |
| Subject: |
| Re: [PATCH] rcu: Is it safe to enter an RCU read-side critical section? |
| Date: |
| Mon, 9 Sep 2013 15:34:26 -0700 |
| Message-ID: |
| <20130909223426.GM3966@linux.vnet.ibm.com> |
| Cc: |
| Mathieu Desnoyers <mathieu.desnoyers-AT-efficios.com>, Frederic Weisbecker <fweisbec-AT-gmail.com>, Peter Zijlstra <peterz-AT-infradead.org>, Eric Dumazet <eric.dumazet-AT-gmail.com>, linux-kernel-AT-vger.kernel.org, mingo-AT-elte.hu, laijs-AT-cn.fujitsu.com, dipankar-AT-in.ibm.com, akpm-AT-linux-foundation.org, josh-AT-joshtriplett.org, niv-AT-us.ibm.com, tglx-AT-linutronix.de, dhowells-AT-redhat.com, edumazet-AT-google.com, darren-AT-dvhart.com, sbw-AT-mit.edu |
| Archive-link: |
| Article, Thread
|
On Mon, Sep 09, 2013 at 05:59:17PM -0400, Steven Rostedt wrote:
> On Mon, 9 Sep 2013 17:40:26 -0400
> Mathieu Desnoyers <mathieu.desnoyers@efficios.com> wrote:
>
> > Agreed. So how about rcu_is_online() ?
>
> Nope, what about all_your_base_are_belong_to_rcu()?
Let's see if I can remember the candidates...
rcu_is_cpu_idle() # reversed sense from the others
rcu_is_ignored() # reversed sense from the others
rcu_is_not_active() # reversed sense from the others
rcu_is_watching_cpu()
rcu_read_check()
rcu_is_active()
rcu_is_active_local()
rcu_is_online()
rcu_is_watching_task()
rcu_is_watching_thread()
rcu_is_watching_you()
all_your_base_are_belong_to_rcu()
rcu_is_active_loco()
rcu_kilroy_was_here()
Maybe I should just lock them all in a room overnight and see which
are still alive in the morning.
Thanx, Paul
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