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authorTejun Heo <tj@kernel.org>2010-10-19 11:28:15 +0200
committerTejun Heo <tj@kernel.org>2010-10-19 11:28:15 +0200
commitdaaae6b010ac0f60c9c35e481589966f9f1fcc22 (patch)
tree94f4f463d898af0ad1926b8d21c15db94a0a411a
parent31ddd871fc3db73e2024cb3eb3ee5051edf5a80f (diff)
workqueue: remove in_workqueue_context()
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>
-rw-r--r--include/linux/workqueue.h4
-rw-r--r--kernel/workqueue.c15
2 files changed, 0 insertions, 19 deletions
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 03bbe903e5ce..070bb7a88936 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -430,8 +430,4 @@ extern bool freeze_workqueues_busy(void);
extern void thaw_workqueues(void);
#endif /* CONFIG_FREEZER */
-#ifdef CONFIG_LOCKDEP
-int in_workqueue_context(struct workqueue_struct *wq);
-#endif
-
#endif
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index eb5c1972443a..30acdb74cc23 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -310,21 +310,6 @@ static inline int __next_wq_cpu(int cpu, const struct cpumask *mask,
(cpu) < WORK_CPU_NONE; \
(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
static struct debug_obj_descr work_debug_descr;