| Message ID | 1315332049-2604-30-git-send-email-paulmck@linux.vnet.ibm.com |
|---|---|
| State | Accepted |
| Commit | 717f98f0f87c16c1e5768ac8f67c27f3d3535a25 |
| Headers | show |
diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 7e2f297..0c6c30d 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -373,13 +373,6 @@ void rcu_enter_nohz(void) smp_mb__after_atomic_inc(); /* Force ordering with next sojourn. */ WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1); local_irq_restore(flags); - - /* If the interrupt queued a callback, get out of dyntick mode. */ - if (in_irq() && - (__get_cpu_var(rcu_sched_data).nxtlist || - __get_cpu_var(rcu_bh_data).nxtlist || - rcu_preempt_needs_cpu(smp_processor_id()))) - set_need_resched(); } /*
The in_irq() check in rcu_enter_nohz() is redundant because if we really are in an interrupt, the attempt to re-enter dyntick-idle mode will invoke rcu_needs_cpu() in any case, which will force the check for RCU callbacks. So this commit removes the check along with the set_need_resched(). Suggested-by: Frederic Weisbecker <fweisbec@gmail.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- kernel/rcutree.c | 7 ------- 1 files changed, 0 insertions(+), 7 deletions(-)