#ifndef __LINUX_DEBUG_LOCKING_H #define __LINUX_DEBUG_LOCKING_H #include <linux/kernel.h> #include <asm/atomic.h> #include <asm/system.h> struct task_struct; extern int debug_locks; extern int debug_locks_silent; static inline int __debug_locks_off(void) { return xchg(&debug_locks, 0); } /* * Generic 'turn off all lock debugging' function: */ extern int debug_locks_off(void); #define DEBUG_LOCKS_WARN_ON(c) \ ({ \ int __ret = 0; \ \ if (!oops_in_progress && unlikely(c)) { \ if (debug_locks_off() && !debug_locks_silent) \ WARN_ON(1); \ __ret = 1; \ } \ __ret; \ }) #ifdef CONFIG_SMP # define SMP_DEBUG_LOCKS_WARN_ON(c) DEBUG_LOCKS_WARN_ON(c) #else # define SMP_DEBUG_LOCKS_WARN_ON(c) do { } while (0) #endif #ifdef CONFIG_DEBUG_LOCKING_API_SELFTESTS extern void locking_selftest(void); #else # define locking_selftest() do { } while (0) #endif struct task_struct; #ifdef CONFIG_LOCKDEP extern void debug_show_all_locks(void); extern void __debug_show_held_locks(struct task_struct *task); extern void debug_show_held_locks(struct task_struct *task); extern void debug_check_no_locks_freed(const void *from, unsigned long len); extern void debug_check_no_locks_held(struct task_struct *task); #else static inline void debug_show_all_locks(void) { } static inline void __debug_show_held_locks(struct task_struct *task) { } static inline void debug_show_held_locks(struct task_struct *task) { } static inline void debug_check_no_locks_freed(const void *from, unsigned long len) { } static inline void debug_check_no_locks_held(struct task_struct *task) { } #endif #endif