From a0e3a3aa2841d5720a277de53b6882eb8b2ef698 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Sat, 5 Dec 2015 17:34:10 -0800 Subject: [PATCH] rcutorture: Flag nonexistent RCU GP kthread Currently, if the RCU grace-period kthread has not yet been created, in which case the starvation-check code will print zero for the state, which maps to TASK_RUNNING. This could clearly be quite confusing, so this commit prints ~0, which does not map to any legal ->state value. Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett --- kernel/rcu/tree.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 81aa1cdc6bc9..e2315fb57b23 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -1201,7 +1201,7 @@ static void rcu_check_gp_kthread_starvation(struct rcu_state *rsp) rsp->name, j - gpa, rsp->gpnum, rsp->completed, rsp->gp_flags, rsp->gp_state, - rsp->gp_kthread ? rsp->gp_kthread->state : 0); + rsp->gp_kthread ? rsp->gp_kthread->state : ~0); } /*