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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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ca31e146d5
These two macros are useful beyond lock debugging. Moved definitions from include/linux/debug_locks.h to include/linux/kernel.h, so code that needs them does not have to include the former, which would have been a less intuitive choice of a header. Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
73 lines
1.5 KiB
C
73 lines
1.5 KiB
C
#ifndef __LINUX_DEBUG_LOCKING_H
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#define __LINUX_DEBUG_LOCKING_H
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#include <linux/kernel.h>
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struct task_struct;
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extern int debug_locks;
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extern int debug_locks_silent;
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/*
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* Generic 'turn off all lock debugging' function:
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*/
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extern int debug_locks_off(void);
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#define DEBUG_LOCKS_WARN_ON(c) \
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({ \
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int __ret = 0; \
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\
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if (unlikely(c)) { \
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if (debug_locks_off() && !debug_locks_silent) \
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WARN_ON(1); \
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__ret = 1; \
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} \
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__ret; \
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})
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#ifdef CONFIG_SMP
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# define SMP_DEBUG_LOCKS_WARN_ON(c) DEBUG_LOCKS_WARN_ON(c)
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#else
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# define SMP_DEBUG_LOCKS_WARN_ON(c) do { } while (0)
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#endif
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#ifdef CONFIG_DEBUG_LOCKING_API_SELFTESTS
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extern void locking_selftest(void);
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#else
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# define locking_selftest() do { } while (0)
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#endif
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struct task_struct;
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#ifdef CONFIG_LOCKDEP
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extern void debug_show_all_locks(void);
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extern void __debug_show_held_locks(struct task_struct *task);
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extern void debug_show_held_locks(struct task_struct *task);
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extern void debug_check_no_locks_freed(const void *from, unsigned long len);
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extern void debug_check_no_locks_held(struct task_struct *task);
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#else
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static inline void debug_show_all_locks(void)
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{
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}
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static inline void __debug_show_held_locks(struct task_struct *task)
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{
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}
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static inline void debug_show_held_locks(struct task_struct *task)
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{
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}
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static inline void
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debug_check_no_locks_freed(const void *from, unsigned long len)
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{
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}
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static inline void
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debug_check_no_locks_held(struct task_struct *task)
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{
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}
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#endif
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#endif
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