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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Wed, Jun 08, 2022 at 04:27:48PM +0200, Peter Zijlstra wrote: > No callers left that have already disabled RCU. > > Signed-off-by: Peter Zijlstra (Intel) Acked-by: Mark Rutland Mark. > --- > kernel/time/tick-broadcast-hrtimer.c | 29 ++++++++++++----------------- > 1 file changed, 12 insertions(+), 17 deletions(-) > > --- a/kernel/time/tick-broadcast-hrtimer.c > +++ b/kernel/time/tick-broadcast-hrtimer.c > @@ -56,25 +56,20 @@ static int bc_set_next(ktime_t expires, > * hrtimer callback function is currently running, then > * hrtimer_start() cannot move it and the timer stays on the CPU on > * which it is assigned at the moment. > + */ > + hrtimer_start(&bctimer, expires, HRTIMER_MODE_ABS_PINNED_HARD); > + /* > + * The core tick broadcast mode expects bc->bound_on to be set > + * correctly to prevent a CPU which has the broadcast hrtimer > + * armed from going deep idle. > * > - * As this can be called from idle code, the hrtimer_start() > - * invocation has to be wrapped with RCU_NONIDLE() as > - * hrtimer_start() can call into tracing. > + * As tick_broadcast_lock is held, nothing can change the cpu > + * base which was just established in hrtimer_start() above. So > + * the below access is safe even without holding the hrtimer > + * base lock. > */ > - RCU_NONIDLE( { > - hrtimer_start(&bctimer, expires, HRTIMER_MODE_ABS_PINNED_HARD); > - /* > - * The core tick broadcast mode expects bc->bound_on to be set > - * correctly to prevent a CPU which has the broadcast hrtimer > - * armed from going deep idle. > - * > - * As tick_broadcast_lock is held, nothing can change the cpu > - * base which was just established in hrtimer_start() above. So > - * the below access is safe even without holding the hrtimer > - * base lock. > - */ > - bc->bound_on = bctimer.base->cpu_base->cpu; > - } ); > + bc->bound_on = bctimer.base->cpu_base->cpu; > + > return 0; > } > > > _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv