Commit 1f21b50b authored Sep 01, 2016 by Paul E. McKenney

rcu: Remove obsolete comment from __call_rcu()



The __call_rcu() comment about opportunistically noting grace period
beginnings and endings is obsolete.  RCU still does such opportunistic
noting, but in __call_rcu_core() rather than __call_rcu(), and there
already is an appropriate comment in __call_rcu_core().  This commit
therefore removes the obsolete comment.

Reported-by: Michalis Kokologiannakis <mixaskok@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

parent 5403d367

kernel/rcu/tree.c

+0 −7

Original line number	Diff line number	Diff line
		@@ -3131,13 +3131,6 @@ __call_rcu(struct rcu_head *head, rcu_callback_t func,
		}
		head->func = func;
		head->next = NULL;

		/*
		* Opportunistically note grace-period endings and beginnings.
		* Note that we might see a beginning right after we see an
		* end, but never vice versa, since this CPU has to pass through
		* a quiescent state betweentimes.
		*/
		local_irq_save(flags);
		rdp = this_cpu_ptr(rsp->rda);