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workqueue: remove in_workqueue_context()

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Commit a25909a4 (lockdep: Add an in_workqueue_context() lockdep-based
test function) added in_workqueue_context() but there hasn't been any
in-kernel user and the lockdep annotation in workqueue is scheduled to
change.  Remove the unused function.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
This commit is contained in:
Tejun Heo 2010-10-19 11:28:15 +02:00
parent 31ddd871fc
commit daaae6b010
2 changed files with 0 additions and 19 deletions
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4
include/linux/workqueue.h
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@ -430,8 +430,4 @@ extern bool freeze_workqueues_busy(void);
extern void thaw_workqueues(void); extern void thaw_workqueues(void);
#endif /* CONFIG_FREEZER */ #endif /* CONFIG_FREEZER */
#ifdef CONFIG_LOCKDEP
int in_workqueue_context(struct workqueue_struct *wq);
#endif
#endif #endif

15
kernel/workqueue.c
View File

@ -310,21 +310,6 @@ static inline int __next_wq_cpu(int cpu, const struct cpumask *mask,
(cpu) < WORK_CPU_NONE; \ (cpu) < WORK_CPU_NONE; \
(cpu) = __next_wq_cpu((cpu), cpu_possible_mask, (wq))) (cpu) = __next_wq_cpu((cpu), cpu_possible_mask, (wq)))
#ifdef CONFIG_LOCKDEP
/**
* in_workqueue_context() - in context of specified workqueue?
* @wq: the workqueue of interest
*
* Checks lockdep state to see if the current task is executing from
* within a workqueue item. This function exists only if lockdep is
* enabled.
*/
int in_workqueue_context(struct workqueue_struct *wq)
{
return lock_is_held(&wq->lockdep_map);
}
#endif
#ifdef CONFIG_DEBUG_OBJECTS_WORK #ifdef CONFIG_DEBUG_OBJECTS_WORK
static struct debug_obj_descr work_debug_descr; static struct debug_obj_descr work_debug_descr;