EXP sched: Make non-production PREEMPT cond_resched() help Tasks RCU
In CONFIG_PREEMPT=y kernels, cond_resched() is a complete no-op, and
thus cannot help advance Tasks-RCU grace periods. However, such grace
periods are only an issue in non-production benchmarking runs of the
Linux kernel. This commit therefore makes cond_resched() invoke
rcu_note_voluntary_context_switch() for kernels implementing Tasks RCU
even in CONFIG_PREEMPT=y kernels.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
1 file changed
