Messages in this thread | | | Subject | Re: [PATCH 1/2] trace_events_filter: use rcu_assign_pointer() when setting ftrace_event_call->filter | From | Steven Rostedt <> | Date | Wed, 23 Nov 2011 12:06:40 -0500 |
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On Wed, 2011-11-23 at 08:06 -0800, Tejun Heo wrote:
> So, synchronized_sched() being called after isn't relevant. We want > smp_wmb() between data structure initialization and assignment of the > new pointer.
Ah, you're saying that we need to guarantee that the allocated filter is seen before we update the call->filter to point to it. OK, fair enough, this does look like a bug fix.
Is it big enough to be considered for stable?
-- Steve
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