diff options
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-04-27 13:32:28 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2018-07-12 14:27:48 -0700 |
| commit | 78c5a67f1788f59d991c8e78d674ad3c8542f0ac (patch) | |
| tree | 0bd5cc44c844f3697efa3f81f6d86db5ef6ce259 /kernel/rcu | |
| parent | 17ef2fe97c8c8e754e4a702c42f8e5b0ffadf4dd (diff) | |
| download | lwn-78c5a67f1788f59d991c8e78d674ad3c8542f0ac.tar.gz lwn-78c5a67f1788f59d991c8e78d674ad3c8542f0ac.zip | |
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: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu')
| -rw-r--r-- | kernel/rcu/tree.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c index 547112bec26a..002f85357226 100644 --- a/kernel/rcu/tree.c +++ b/kernel/rcu/tree.c @@ -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, |