On Thu, Nov 29, 2012 at 11:30:19AM +0100, Frederic Weisbecker wrote:
> 2012/11/29 Li Zhong :
> > On Tue, 2012-11-27 at 19:33 +0100, Frederic Weisbecker wrote:
> > []
> >> -
> >> - WARN_ON_ONCE(!current->mm);
> >> -
> >> - local_irq_save(flags);
> >> - rdtp = &__get_cpu_var(rcu_dynti
2012/11/29 Li Zhong :
> On Tue, 2012-11-27 at 19:33 +0100, Frederic Weisbecker wrote:
> []
>> -
>> - WARN_ON_ONCE(!current->mm);
>> -
>> - local_irq_save(flags);
>> - rdtp = &__get_cpu_var(rcu_dynticks);
>> - if (!rdtp->ignore_user_qs && !rdtp->in_user) {
>> - rdtp->
On Tue, 2012-11-27 at 19:33 +0100, Frederic Weisbecker wrote:
[]
> -
> - WARN_ON_ONCE(!current->mm);
> -
> - local_irq_save(flags);
> - rdtp = &__get_cpu_var(rcu_dynticks);
> - if (!rdtp->ignore_user_qs && !rdtp->in_user) {
> - rdtp->in_user = true;
> - r
On Tue, Nov 27, 2012 at 08:50:38PM -0500, Steven Rostedt wrote:
> On Tue, 2012-11-27 at 16:59 -0800, Paul E. McKenney wrote:
> > On Tue, Nov 27, 2012 at 07:33:25PM +0100, Frederic Weisbecker wrote:
> > > Create a new subsystem that probes on kernel boundaries
> > > to keep track of the transitions
On Tue, 2012-11-27 at 16:59 -0800, Paul E. McKenney wrote:
> On Tue, Nov 27, 2012 at 07:33:25PM +0100, Frederic Weisbecker wrote:
> > Create a new subsystem that probes on kernel boundaries
> > to keep track of the transitions between level contexts
> > with two basic initial contexts: user or kern
On Tue, Nov 27, 2012 at 07:33:25PM +0100, Frederic Weisbecker wrote:
> Create a new subsystem that probes on kernel boundaries
> to keep track of the transitions between level contexts
> with two basic initial contexts: user or kernel.
>
> This is an abstraction of some RCU code that use such trac
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