On Fri, Mar 15, 2019 at 04:44:52PM +0900, Byungchul Park wrote:
> On 03/15/2019 04:31 PM, Byungchul Park wrote:
> > On Mon, Mar 11, 2019 at 09:39:39AM -0400, Joel Fernandes wrote:
> > > On Wed, Aug 29, 2018 at 03:20:34PM -0700, Paul E. McKenney wrote:
> > > > RCU's dyntick-idle code is written to
On Mon, Mar 11, 2019 at 09:39:39AM -0400, Joel Fernandes wrote:
> On Wed, Aug 29, 2018 at 03:20:34PM -0700, Paul E. McKenney wrote:
> > RCU's dyntick-idle code is written to tolerate half-interrupts, that it,
> > either an interrupt that invokes rcu_irq_enter() but never invokes the
> >
On 03/15/2019 04:31 PM, Byungchul Park wrote:
On Mon, Mar 11, 2019 at 09:39:39AM -0400, Joel Fernandes wrote:
On Wed, Aug 29, 2018 at 03:20:34PM -0700, Paul E. McKenney wrote:
RCU's dyntick-idle code is written to tolerate half-interrupts, that it,
either an interrupt that invokes
On Thu, Mar 14, 2019 at 09:37:46AM -0400, Steven Rostedt wrote:
> On Thu, 14 Mar 2019 09:36:57 -0400
> Steven Rostedt wrote:
>
> > On Thu, 14 Mar 2019 08:31:59 -0400
> > Joel Fernandes wrote:
> >
> > > Oh thanks for pointing that out. Yes it does work for me. I agree with the
> > > lockdep API
On Thu, 14 Mar 2019 09:36:57 -0400
Steven Rostedt wrote:
> On Thu, 14 Mar 2019 08:31:59 -0400
> Joel Fernandes wrote:
>
> > Oh thanks for pointing that out. Yes it does work for me. I agree with the
> > lockdep API addition and others could benefit from it too. I will
> > incorporate
> > the
On Thu, 14 Mar 2019 08:31:59 -0400
Joel Fernandes wrote:
> Oh thanks for pointing that out. Yes it does work for me. I agree with the
> lockdep API addition and others could benefit from it too. I will incorporate
> the lockdep API addition into the RCU patch, but let me know if I should
>
On Wed, Mar 13, 2019 at 11:07:30AM -0700, Paul E. McKenney wrote:
> On Wed, Mar 13, 2019 at 12:51:25PM -0400, Steven Rostedt wrote:
> > On Wed, 13 Mar 2019 08:51:55 -0700
> > "Paul E. McKenney" wrote:
> >
> > > Does this mean that there is a better approach that Joel's suggestion?
> > > I
On Wed, Mar 13, 2019 at 12:51:25PM -0400, Steven Rostedt wrote:
> On Wed, 13 Mar 2019 08:51:55 -0700
> "Paul E. McKenney" wrote:
>
> > Does this mean that there is a better approach that Joel's suggestion?
> > I believe he would end up with something like this:
> >
> >
On Wed, 13 Mar 2019 08:51:55 -0700
"Paul E. McKenney" wrote:
> Does this mean that there is a better approach that Joel's suggestion?
> I believe he would end up with something like this:
>
> WARN_ON_ONCE(IS_ENABLED(CONFIG_PROVE_RCU) && !in_irq());
>
> It would be nice if there is
On Wed, Mar 13, 2019 at 11:27:26AM -0400, Steven Rostedt wrote:
> On Wed, 13 Mar 2019 11:09:48 -0400
> Joel Fernandes wrote:
>
> > AFAICS, lockdep does not specifically track when we enter an interrupt, but
> > rather only tracks when interrupts are enabled/disabled.
>
> It does:
>
> #define
On Wed, 13 Mar 2019 11:09:48 -0400
Joel Fernandes wrote:
> AFAICS, lockdep does not specifically track when we enter an interrupt, but
> rather only tracks when interrupts are enabled/disabled.
It does:
#define __irq_enter() \
do {
On Tue, Mar 12, 2019 at 08:20:34AM -0700, Paul E. McKenney wrote:
[snip]
>
> >Could we be more explicit in the code that this function can only
> > be called from an interrupt, and also we change the code comment to be more
> > clear about it (like the following diff)?
>
> That would
On Tue, Mar 12, 2019 at 11:05:14AM -0400, Joel Fernandes wrote:
> On Mon, Mar 11, 2019 at 03:29:03PM -0700, Paul E. McKenney wrote:
> > On Mon, Mar 11, 2019 at 09:39:39AM -0400, Joel Fernandes wrote:
> > > On Wed, Aug 29, 2018 at 03:20:34PM -0700, Paul E. McKenney wrote:
> > > > RCU's dyntick-idle
On Mon, Mar 11, 2019 at 03:29:03PM -0700, Paul E. McKenney wrote:
> On Mon, Mar 11, 2019 at 09:39:39AM -0400, Joel Fernandes wrote:
> > On Wed, Aug 29, 2018 at 03:20:34PM -0700, Paul E. McKenney wrote:
> > > RCU's dyntick-idle code is written to tolerate half-interrupts, that it,
> > > either an
On Mon, Mar 11, 2019 at 09:39:39AM -0400, Joel Fernandes wrote:
> On Wed, Aug 29, 2018 at 03:20:34PM -0700, Paul E. McKenney wrote:
> > RCU's dyntick-idle code is written to tolerate half-interrupts, that it,
> > either an interrupt that invokes rcu_irq_enter() but never invokes the
> >
On Wed, Aug 29, 2018 at 03:20:34PM -0700, Paul E. McKenney wrote:
> RCU's dyntick-idle code is written to tolerate half-interrupts, that it,
> either an interrupt that invokes rcu_irq_enter() but never invokes the
> corresponding rcu_irq_exit() on the one hand, or an interrupt that never
> invokes
RCU's dyntick-idle code is written to tolerate half-interrupts, that it,
either an interrupt that invokes rcu_irq_enter() but never invokes the
corresponding rcu_irq_exit() on the one hand, or an interrupt that never
invokes rcu_irq_enter() but does invoke the "corresponding" rcu_irq_exit()
on the
RCU's dyntick-idle code is written to tolerate half-interrupts, that it,
either an interrupt that invokes rcu_irq_enter() but never invokes the
corresponding rcu_irq_exit() on the one hand, or an interrupt that never
invokes rcu_irq_enter() but does invoke the "corresponding" rcu_irq_exit()
on the
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