diff options
| -rw-r--r-- | kernel/rcu/srcutree.c | 22 |
1 files changed, 20 insertions, 2 deletions
diff --git a/kernel/rcu/srcutree.c b/kernel/rcu/srcutree.c index 00f9aed6f7b9..0874e3be6a5a 100644 --- a/kernel/rcu/srcutree.c +++ b/kernel/rcu/srcutree.c @@ -1407,15 +1407,33 @@ void srcutorture_get_gp_data(enum rcutorture_type test_type, } EXPORT_SYMBOL_GPL(srcutorture_get_gp_data); +static const char * const srcu_size_state_name[] = { + "SRCU_SIZE_SMALL", + "SRCU_SIZE_ALLOC", + "SRCU_SIZE_WAIT_BARRIER", + "SRCU_SIZE_WAIT_CALL", + "SRCU_SIZE_WAIT_CBS1", + "SRCU_SIZE_WAIT_CBS2", + "SRCU_SIZE_WAIT_CBS3", + "SRCU_SIZE_WAIT_CBS4", + "SRCU_SIZE_BIG", + "SRCU_SIZE_???", +}; + void srcu_torture_stats_print(struct srcu_struct *ssp, char *tt, char *tf) { int cpu; int idx; unsigned long s0 = 0, s1 = 0; + int ss_state = READ_ONCE(ssp->srcu_size_state); + int ss_state_idx = ss_state; idx = ssp->srcu_idx & 0x1; - pr_alert("%s%s Tree SRCU g%ld per-CPU(idx=%d):", - tt, tf, rcu_seq_current(&ssp->srcu_gp_seq), idx); + if (ss_state < 0 || ss_state >= ARRAY_SIZE(srcu_size_state_name)) + ss_state_idx = ARRAY_SIZE(srcu_size_state_name) - 1; + pr_alert("%s%s Tree SRCU g%ld state %d (%s) per-CPU(idx=%d):", + tt, tf, rcu_seq_current(&ssp->srcu_gp_seq), ss_state, + srcu_size_state_name[ss_state_idx], idx); for_each_possible_cpu(cpu) { unsigned long l0, l1; unsigned long u0, u1; |