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ANDROID: workqueue: Export workqueue_execute_start/end tracepoints

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Export workqueue_execute_start/end tracepoints, so that vendor modules
can register probes for these tracepoints.

To debug workqueue-related issue, workqueue_execute_start/end infos must
be necessary to find whether workqueue start and exit normally or not.
And workqueue_execute_start/end also check that workqueue is operated
normally or not.

Bug: 205928005
Change-Id: Ib4c8f39ff8305a1d52fbca9d06b5e792396a3a2d
Signed-off-by: Changki Kim <changki.kim@samsung.com>
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
(cherry picked from commit b50a32b28c9ef57562e284908e7228d1568d7461)
This commit is contained in:
Changki Kim
2020-12-19 14:20:04 +09:00
committed by Treehugger Robot
parent 9eb0d9fb02
commit 3e5c2a96e3
1 changed files with 3 additions and 0 deletions
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kernel/workqueue.c
+3
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@@ -534,6 +534,9 @@ static void show_one_worker_pool(struct worker_pool *pool);
#define CREATE_TRACE_POINTS
#include <trace/events/workqueue.h>
EXPORT_TRACEPOINT_SYMBOL_GPL(workqueue_execute_start);
EXPORT_TRACEPOINT_SYMBOL_GPL(workqueue_execute_end);
#define assert_rcu_or_pool_mutex() \
RCU_LOCKDEP_WARN(!rcu_read_lock_any_held() && \
!lockdep_is_held(&wq_pool_mutex), \