* [PATCH 1/3] ptrace: annotate lock context change on exit_ptrace()
@ 2010-08-22 10:22 Namhyung Kim
2010-08-23 16:53 ` Roland McGrath
0 siblings, 1 reply; 2+ messages in thread
From: Namhyung Kim @ 2010-08-22 10:22 UTC (permalink / raw)
To: Roland McGrath, Oleg Nesterov; +Cc: linux-kernel
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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH 1/3] ptrace: annotate lock context change on exit_ptrace()
2010-08-22 10:22 [PATCH 1/3] ptrace: annotate lock context change on exit_ptrace() Namhyung Kim
@ 2010-08-23 16:53 ` Roland McGrath
0 siblings, 0 replies; 2+ messages in thread
From: Roland McGrath @ 2010-08-23 16:53 UTC (permalink / raw)
To: Namhyung Kim; +Cc: Oleg Nesterov, linux-kernel
Acked-by: Roland McGrath <roland@redhat.com>
^ permalink raw reply [flat|nested] 2+ messages in thread
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