Messages in this thread | | | Date | Tue, 7 Feb 2012 07:37:10 -0800 | From | "Paul E. McKenney" <> | Subject | Re: [PATCH 0/3][RFC] tracing/rcu: Add _rcuidle() tracepoint to handle rcu_idle_exit() tracepoints |
| |
On Tue, Feb 07, 2012 at 09:56:53AM -0500, Steven Rostedt wrote: > This is an RFC patch set for what I plan on pushing out to handle > the tracepoints that are called from within rcu_idle_exit() sections. > > The first patch is the tracepoint infrastructure, > the second is the changes in x86 > the third is the changes in the cpuidle driver. > > I see there's use cases in the arm arch, but as that is in flux, I'll > let the arm folks deal with those.
Please note that the __rcudle() tracepoints depend on patch #45 from my series (https://lkml.org/lkml/2012/2/3/471), though only for code containing tracepoints that are called both from idle and non-idle. I believe that the tracepoints in this patch series are only invoked from idle, so should be no problem.
Thanx, Paul
> -- Steve > > > Steven Rostedt (3): > tracing/rcu: Add trace_##name##__rcuidle() static tracepoint for inside rcu_idle_exit() sections > x86/tracing: Denote the power and cpuidle tracepoints as _rcuidle() > cpuidle/tracing: Denote the tracepoints as being in rcu_idle_exit() section > > ---- > arch/x86/kernel/process.c | 24 ++++++++++++------------ > drivers/cpuidle/cpuidle.c | 8 ++++---- > include/linux/tracepoint.h | 20 ++++++++++++++++---- > 3 files changed, 32 insertions(+), 20 deletions(-) > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ >
| |