diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/rcutree.h | 5 | ||||
| -rw-r--r-- | kernel/rcutree_plugin.h | 4 |
2 files changed, 8 insertions, 1 deletions
diff --git a/kernel/rcutree.h b/kernel/rcutree.h index 8e756099a1a8..26c9bb3166a3 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -325,6 +325,11 @@ struct rcu_data { struct task_struct *nocb_kthread; #endif /* #ifdef CONFIG_RCU_NOCB_CPU */ + /* 8) RCU CPU stall data. */ +#ifdef CONFIG_RCU_CPU_STALL_INFO + unsigned int softirq_snap; /* Snapshot of softirq activity. */ +#endif /* #ifdef CONFIG_RCU_CPU_STALL_INFO */ + int cpu; struct rcu_state *rsp; }; diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index c1cc7e17ff9d..7fcd3bbf67da 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h @@ -2070,10 +2070,11 @@ 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); - printk(KERN_ERR "\t%d: (%lu %s) idle=%03x/%llx/%d %s\n", + printk(KERN_ERR "\t%d: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u %s\n", cpu, ticks_value, ticks_title, atomic_read(&rdtp->dynticks) & 0xfff, rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting, + rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu), fast_no_hz); } @@ -2087,6 +2088,7 @@ static void print_cpu_stall_info_end(void) static void zero_cpu_stall_ticks(struct rcu_data *rdp) { rdp->ticks_this_gp = 0; + rdp->softirq_snap = kstat_softirqs_cpu(RCU_SOFTIRQ, smp_processor_id()); } /* Increment ->ticks_this_gp for all flavors of RCU. */ |