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authorPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-04-28 14:15:40 -0700
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2018-07-12 14:27:53 -0700
commit8aa670cdacc1820cb0597e4b4b413ef91ede2dd9 (patch)
tree4b07ca775c3c60f7a26038ff28988b6954851156 /kernel/rcu/tree_plugin.h
parentba04107fc901ddce49686944f7e038b4f0b0a359 (diff)
rcu: Convert ->rcu_iw_gpnum to ->gp_seq
This commit switches the interrupt-disabled detection mechanism to ->gp_seq. This mechanism is used as part of RCU CPU stall warnings, and detects cases where the stall is due to a CPU having interrupts disabled. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcu/tree_plugin.h')
-rw-r--r--kernel/rcu/tree_plugin.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 5b10904669c5..bc32e1f434a6 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1763,7 +1763,7 @@ static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
ticks_value = rsp->gpnum - rdp->gpnum;
}
print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
- delta = rdp->mynode->gpnum - rdp->rcu_iw_gpnum;
+ delta = rcu_seq_ctr(rdp->mynode->gp_seq - rdp->rcu_iw_gp_seq);
pr_err("\t%d-%c%c%c%c: (%lu %s) idle=%03x/%ld/%ld softirq=%u/%u fqs=%ld %s\n",
cpu,
"O."[!!cpu_online(cpu)],