linux-kernel - Re: [PATCH for 2.6.25] Markers

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Message-Id: <20080401133017.9484a35b.akpm@linux-foundation.org>
Date:	Tue, 1 Apr 2008 13:30:17 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Mathieu Desnoyers <mathieu.desnoyers@...ymtl.ca>
Cc:	paulmck@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH for 2.6.25] Markers - use synchronize_sched()

On Mon, 31 Mar 2008 09:16:09 -0400
Mathieu Desnoyers <mathieu.desnoyers@...ymtl.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.
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