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-rw-r--r--kernel/rcu/tiny_plugin.h9
1 files changed, 4 insertions, 5 deletions
diff --git a/kernel/rcu/tiny_plugin.h b/kernel/rcu/tiny_plugin.h
index 858c56569127..f94e209a10d6 100644
--- a/kernel/rcu/tiny_plugin.h
+++ b/kernel/rcu/tiny_plugin.h
@@ -145,17 +145,16 @@ static void check_cpu_stall(struct rcu_ctrlblk *rcp)
145 rcp->ticks_this_gp++; 145 rcp->ticks_this_gp++;
146 j = jiffies; 146 j = jiffies;
147 js = ACCESS_ONCE(rcp->jiffies_stall); 147 js = ACCESS_ONCE(rcp->jiffies_stall);
148 if (*rcp->curtail && ULONG_CMP_GE(j, js)) { 148 if (rcp->rcucblist && ULONG_CMP_GE(j, js)) {
149 pr_err("INFO: %s stall on CPU (%lu ticks this GP) idle=%llx (t=%lu jiffies q=%ld)\n", 149 pr_err("INFO: %s stall on CPU (%lu ticks this GP) idle=%llx (t=%lu jiffies q=%ld)\n",
150 rcp->name, rcp->ticks_this_gp, rcu_dynticks_nesting, 150 rcp->name, rcp->ticks_this_gp, DYNTICK_TASK_EXIT_IDLE,
151 jiffies - rcp->gp_start, rcp->qlen); 151 jiffies - rcp->gp_start, rcp->qlen);
152 dump_stack(); 152 dump_stack();
153 }
154 if (*rcp->curtail && ULONG_CMP_GE(j, js))
155 ACCESS_ONCE(rcp->jiffies_stall) = jiffies + 153 ACCESS_ONCE(rcp->jiffies_stall) = jiffies +
156 3 * rcu_jiffies_till_stall_check() + 3; 154 3 * rcu_jiffies_till_stall_check() + 3;
157 else if (ULONG_CMP_GE(j, js)) 155 } else if (ULONG_CMP_GE(j, js)) {
158 ACCESS_ONCE(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check(); 156 ACCESS_ONCE(rcp->jiffies_stall) = jiffies + rcu_jiffies_till_stall_check();
157 }
159} 158}
160 159
161static void reset_cpu_stall_ticks(struct rcu_ctrlblk *rcp) 160static void reset_cpu_stall_ticks(struct rcu_ctrlblk *rcp)