From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH for 2.6.25] Markers - use synchronize_sched()
Date: Tue, 1 Apr 2008 13:45:42 -0700 [thread overview]
Message-ID: <20080401204542.GA8558@linux.vnet.ibm.com> (raw)
In-Reply-To: <20080401133017.9484a35b.akpm@linux-foundation.org>
On Tue, Apr 01, 2008 at 01:30:17PM -0700, Andrew Morton wrote:
> On Mon, 31 Mar 2008 09:16:09 -0400
> Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> wrote:
>
> > Use synchronize_sched before calling call_rcu in CONFIG_PREEMPT_RCU until we
> > have call_rcu_sched and rcu_barrier_sched in mainline. It will slow down the
> > marker operations in CONFIG_PREEMPT_RCU, but it fixes the current race against
> > the preempt_disable/enable() protected code paths.
>
> A better changelog would have described the bug which is being fixed.
>
> > Paul, is this ok ? It would be good to get this in for 2.6.25 final.
>
> Paul seems to have nodded off. I'll merge it.
Paul seems to have fat-fingered the earlier message. But he does see the
message adding this to -mm, and the patch looks good to me.
Thanx, Paul
next prev parent reply other threads:[~2008-04-01 20:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-31 13:16 [PATCH for 2.6.25] Markers - use synchronize_sched() Mathieu Desnoyers
2008-04-01 20:30 ` Andrew Morton
2008-04-01 20:45 ` Paul E. McKenney [this message]
2008-04-01 22:25 ` Mathieu Desnoyers
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