From fcb993712f231a4faea8393513d1276170679107 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 3 Jul 2006 00:25:10 -0700 Subject: [PATCH] lockdep: annotate scheduler runqueue locks Teach per-CPU runqueue locks and recursive locking code to the lock validator. Has no effect on non-lockdep kernels. Signed-off-by: Ingo Molnar Signed-off-by: Arjan van de Ven Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/sched.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'kernel/sched.c') diff --git a/kernel/sched.c b/kernel/sched.c index ae4db0185bb2..f4778d1aef69 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -266,6 +266,7 @@ struct runqueue { unsigned long ttwu_cnt; unsigned long ttwu_local; #endif + struct lock_class_key rq_lock_key; }; static DEFINE_PER_CPU(struct runqueue, runqueues); @@ -6656,6 +6657,7 @@ void __init sched_init(void) rq = cpu_rq(i); spin_lock_init(&rq->lock); + lockdep_set_class(&rq->lock, &rq->rq_lock_key); rq->nr_running = 0; rq->active = rq->arrays; rq->expired = rq->arrays + 1; -- cgit v1.2.3