Commit 7df2a2a0 authored by Frederic Weisbecker's avatar Frederic Weisbecker
Browse files

rcu: Use rcu_segcblist_segempty() instead of open coding it 



This makes the code more readable.

Reviewed-by: default avatarQiuxu Zhuo <qiuxu.zhuo@intel.com>
Reviewed-by: default avatarJoel Fernandes (Google) <joel@joelfernandes.org>
Reviewed-by: default avatarPaul E. McKenney <paulmck@kernel.org>
Signed-off-by: default avatarFrederic Weisbecker <frederic@kernel.org>
parent 5f98fd03

kernel/rcu/rcu_segcblist.c

+2 −2
Original line number Diff line number Diff line
@@ -368,7 +368,7 @@ bool rcu_segcblist_entrain(struct rcu_segcblist *rsclp, 
	smp_mb(); /* Ensure counts are updated before callback is entrained. */

	rhp->next = NULL;

	for (i = RCU_NEXT_TAIL; i > RCU_DONE_TAIL; i--)

		if (rsclp->tails[i] != rsclp->tails[i - 1])

		if (!rcu_segcblist_segempty(rsclp, i))

			break;

	rcu_segcblist_inc_seglen(rsclp, i);

	WRITE_ONCE(*rsclp->tails[i], rhp);
@@ -551,7 +551,7 @@ bool rcu_segcblist_accelerate(struct rcu_segcblist *rsclp, unsigned long seq) 
	 * as their ->gp_seq[] grace-period completion sequence number.

	 */

	for (i = RCU_NEXT_READY_TAIL; i > RCU_DONE_TAIL; i--)

		if (rsclp->tails[i] != rsclp->tails[i - 1] &&

		if (!rcu_segcblist_segempty(rsclp, i) &&

		    ULONG_CMP_LT(rsclp->gp_seq[i], seq))

			break;