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Commit c49443c5 authored by Gregory Haskins's avatar Gregory Haskins Committed by Ingo Molnar
Browse files

sched: remove some old cpuset logic 



We had support for overlapping cpuset based rto logic in early
prototypes that is no longer used, so remove it.

Signed-off-by: default avatarGregory Haskins <ghaskins@novell.com>
Signed-off-by: default avatarSteven Rostedt <srostedt@redhat.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent cdc8eb98

kernel/sched_rt.c

+0 −33
Original line number Diff line number Diff line
@@ -586,38 +586,6 @@ static int pull_rt_task(struct rq *this_rq) 
			continue;



		src_rq = cpu_rq(cpu);

		if (unlikely(src_rq->rt.rt_nr_running <= 1)) {

			/*

			 * It is possible that overlapping cpusets

			 * will miss clearing a non overloaded runqueue.

			 * Clear it now.

			 */

			if (double_lock_balance(this_rq, src_rq)) {

				/* unlocked our runqueue lock */

				struct task_struct *old_next = next;



				next = pick_next_task_rt(this_rq);

				if (next != old_next)

					ret = 1;

			}

			if (likely(src_rq->rt.rt_nr_running <= 1)) {

				/*

				 * Small chance that this_rq->curr changed

				 * but it's really harmless here.

				 */

				rt_clear_overload(this_rq);

			} else {

				/*

				 * Heh, the src_rq is now overloaded, since

				 * we already have the src_rq lock, go straight

				 * to pulling tasks from it.

				 */

				goto try_pulling;

			}

			spin_unlock(&src_rq->lock);

			continue;

		}



		/*

		 * We can potentially drop this_rq's lock in

		 * double_lock_balance, and another CPU could
@@ -641,7 +609,6 @@ static int pull_rt_task(struct rq *this_rq) 
			continue;

		}



 try_pulling:

		p = pick_next_highest_task_rt(src_rq, this_cpu);



		/*