diff options
| author | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-10-01 17:40:54 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-12-01 12:45:36 -0800 |
| commit | e0aff97355575ac6a28a48a4217533a3953095c5 (patch) | |
| tree | 4826db9f3fc2c1452fa4dd7ce0f803dc69929d1c /kernel/rcu/rcu.h | |
| parent | 61670adcb4a9f66ff3fa8a9e846a623d9a9e1553 (diff) | |
rcutorture: Dump grace-period diagnostics upon forward-progress OOM
This commit adds an OOM notifier during rcutorture forward-progress
testing. If this notifier is invoked, it dumps out some grace-period
state to help debug the forward-progress problem.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Diffstat (limited to 'kernel/rcu/rcu.h')
| -rw-r--r-- | kernel/rcu/rcu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index 0f0f5ae8c3d4..a393e24a9195 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -526,12 +526,14 @@ srcu_batches_completed(struct srcu_struct *sp) { return 0; } static inline void rcu_force_quiescent_state(void) { } static inline void show_rcu_gp_kthreads(void) { } static inline int rcu_get_gp_kthreads_prio(void) { return 0; } +static inline void rcu_fwd_progress_check(unsigned long j) { } #else /* #ifdef CONFIG_TINY_RCU */ unsigned long rcu_get_gp_seq(void); unsigned long rcu_exp_batches_completed(void); unsigned long srcu_batches_completed(struct srcu_struct *sp); void show_rcu_gp_kthreads(void); int rcu_get_gp_kthreads_prio(void); +void rcu_fwd_progress_check(unsigned long j); void rcu_force_quiescent_state(void); extern struct workqueue_struct *rcu_gp_wq; extern struct workqueue_struct *rcu_par_gp_wq; |