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[PATCH] debug: workqueue locking sanity

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Workqueue functions should not leak locks, assert so, printing the
last function ran.

Use macros in lockdep.h to avoid include dependency pains.

[akpm@osdl.org: build fix]
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Peter Zijlstra 2006-12-06 20:37:26 -08:00 • committed by Linus Torvalds
parent 6fb50ea79c
commit d5abe66917
2 changed files with 18 additions and 0 deletions
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5
include/linux/lockdep.h
View file

@ -243,6 +243,8 @@ extern void lock_release(struct lockdep_map *lock, int nested,
# define INIT_LOCKDEP .lockdep_recursion = 0,
#define lockdep_depth(tsk) ((tsk)->lockdep_depth)
#else /* !LOCKDEP */
static inline void lockdep_off(void)
@ -277,6 +279,9 @@ static inline int lockdep_internal(void)
* The class key takes no space if lockdep is disabled:
*/
struct lock_class_key { };
#define lockdep_depth(tsk) (0)
#endif /* !LOCKDEP */
#if defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_GENERIC_HARDIRQS)