The rcu_tasks_trace_get_gp_data() is used by rcutorture to diagnose bugs involving the RCU Tasks Trace grace-period kthread, which now no longer exists. This commit therefore removes this function.
Signed-off-by: Paul E. McKenney <[email protected]> Cc: Andrii Nakryiko <[email protected]> Cc: Alexei Starovoitov <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: <[email protected]> --- include/linux/rcupdate_trace.h | 1 - kernel/rcu/rcu.h | 4 ---- kernel/rcu/rcutorture.c | 1 - kernel/rcu/tasks.h | 5 ----- 4 files changed, 11 deletions(-) diff --git a/include/linux/rcupdate_trace.h b/include/linux/rcupdate_trace.h index 3f46cbe6700038..ffd4dcd6339ae4 100644 --- a/include/linux/rcupdate_trace.h +++ b/include/linux/rcupdate_trace.h @@ -136,7 +136,6 @@ static inline void rcu_barrier_tasks_trace(void) } // Placeholders to enable stepwise transition. -void rcu_tasks_trace_get_gp_data(int *flags, unsigned long *gp_seq); void __init rcu_tasks_trace_suppress_unused(void); struct task_struct *get_rcu_tasks_trace_gp_kthread(void); diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h index b397572b4a5331..dc5d614b372c1e 100644 --- a/kernel/rcu/rcu.h +++ b/kernel/rcu/rcu.h @@ -544,10 +544,6 @@ struct task_struct *get_rcu_tasks_rude_gp_kthread(void); void rcu_tasks_rude_get_gp_data(int *flags, unsigned long *gp_seq); #endif // # ifdef CONFIG_TASKS_RUDE_RCU -#ifdef CONFIG_TASKS_TRACE_RCU -void rcu_tasks_trace_get_gp_data(int *flags, unsigned long *gp_seq); -#endif - #ifdef CONFIG_TASKS_RCU_GENERIC void tasks_cblist_init_generic(void); #else /* #ifdef CONFIG_TASKS_RCU_GENERIC */ diff --git a/kernel/rcu/rcutorture.c b/kernel/rcu/rcutorture.c index 5120e1ce811413..485fa822b6a753 100644 --- a/kernel/rcu/rcutorture.c +++ b/kernel/rcu/rcutorture.c @@ -1130,7 +1130,6 @@ static struct rcu_torture_ops tasks_tracing_ops = { .exp_sync = synchronize_rcu_tasks_trace, .call = call_rcu_tasks_trace, .cb_barrier = rcu_barrier_tasks_trace, - .get_gp_data = rcu_tasks_trace_get_gp_data, .cbflood_max = 50000, .irq_capable = 1, .slow_gps = 1, diff --git a/kernel/rcu/tasks.h b/kernel/rcu/tasks.h index 6e2530fe23e620..7a8c1fd9addb7a 100644 --- a/kernel/rcu/tasks.h +++ b/kernel/rcu/tasks.h @@ -1480,11 +1480,6 @@ struct task_struct *get_rcu_tasks_trace_gp_kthread(void) } EXPORT_SYMBOL_GPL(get_rcu_tasks_trace_gp_kthread); -void rcu_tasks_trace_get_gp_data(int *flags, unsigned long *gp_seq) -{ -} -EXPORT_SYMBOL_GPL(rcu_tasks_trace_get_gp_data); - #endif /* #else #ifdef CONFIG_TASKS_TRACE_RCU */ #ifndef CONFIG_TINY_RCU -- 2.40.1
