Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 78c5a67f authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

rcu: Convert rcu_check_gp_kthread_starvation() to GP sequence number 



This commit switches rcu_check_gp_kthread_starvation() from printing
->gpnum and ->completed to printing ->gp_seq upon detecting a starving
RCU grace-period kthread during an RCU CPU stall warning.

Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 17ef2fe9

kernel/rcu/tree.c

+2 −2
Original line number Diff line number Diff line
@@ -1276,9 +1276,9 @@ static void rcu_check_gp_kthread_starvation(struct rcu_state *rsp) 
	j = jiffies;

	gpa = READ_ONCE(rsp->gp_activity);

	if (j - gpa > 2 * HZ) {

		pr_err("%s kthread starved for %ld jiffies! g%lu c%lu f%#x %s(%d) ->state=%#lx ->cpu=%d\n",

		pr_err("%s kthread starved for %ld jiffies! g%ld f%#x %s(%d) ->state=%#lx ->cpu=%d\n",

		       rsp->name, j - gpa,

		       rsp->gpnum, rsp->completed,

		       (long)rcu_seq_current(&rsp->gp_seq),

		       rsp->gp_flags,

		       gp_state_getname(rsp->gp_state), rsp->gp_state,

		       rsp->gp_kthread ? rsp->gp_kthread->state : ~0,