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76 lines
1.6 KiB
76 lines
1.6 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef __LINUX_DEBUG_LOCKING_H |
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#define __LINUX_DEBUG_LOCKING_H |
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#include <linux/atomic.h> |
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#include <linux/bug.h> |
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#include <linux/printk.h> |
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struct task_struct; |
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extern int debug_locks __read_mostly; |
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extern int debug_locks_silent __read_mostly; |
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static __always_inline int __debug_locks_off(void) |
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{ |
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return xchg(&debug_locks, 0); |
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} |
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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 (!oops_in_progress && unlikely(c)) { \ |
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if (debug_locks_off() && !debug_locks_silent) \ |
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WARN(1, "DEBUG_LOCKS_WARN_ON(%s)", #c); \ |
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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_check_no_locks_freed(const void *from, unsigned long len); |
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extern void debug_check_no_locks_held(void); |
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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 |
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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(void) |
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{ |
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} |
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#endif |
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#endif
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