Commit 9f14cb03 authored by Jakub Kicinski's avatar Jakub Kicinski Committed by Paul E. McKenney
Browse files

sched: Un-hide lockdep_tasklist_lock_is_held() for !LOCKDEP 



Currently, variables used only within lockdep expressions are flagged as
unused, requiring that these variables' declarations be decorated with
either #ifdef or __maybe_unused.  This results in ugly code.  This commit
therefore causes the lockdep_tasklist_lock_is_held() function to be
visible even when lockdep is not enabled, thus removing the need for
these decorations.  This approach further relies on dead-code elimination
to remove any references to functions or variables that are not available
in non-lockdep kernels.

Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
Signed-off-by: default avatarPaul E. McKenney <paulmck@kernel.org>
parent 3650b228

include/linux/sched/task.h

+0 −2
Original line number Diff line number Diff line
@@ -47,9 +47,7 @@ extern spinlock_t mmlist_lock; 
extern union thread_union init_thread_union;

extern struct task_struct init_task;



#ifdef CONFIG_PROVE_RCU

extern int lockdep_tasklist_lock_is_held(void);

#endif /* #ifdef CONFIG_PROVE_RCU */



extern asmlinkage void schedule_tail(struct task_struct *prev);

extern void init_idle(struct task_struct *idle, int cpu);