exit_ptrace() is called within tasklist_lock context and releases it and
reacquires but was missing proper annotations. Add it.

Signed-off-by: Namhyung Kim <namhyung@gmail.com>
---
 kernel/ptrace.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index f34d798..4afd9b8 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -329,6 +329,8 @@ int ptrace_detach(struct task_struct *child, unsigned int data)
  * and reacquire the lock.
  */
 void exit_ptrace(struct task_struct *tracer)
+	__releases(&tasklist_lock)
+	__acquires(&tasklist_lock)
 {
 	struct task_struct *p, *n;
 	LIST_HEAD(ptrace_dead);
-- 
1.7.0.4

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