* [PATCH v2] rcu: kasan: record and print kvfree_call_rcu call stack
@ 2020-11-20 3:34 qiang.zhang
0 siblings, 0 replies; only message in thread
From: qiang.zhang @ 2020-11-20 3:34 UTC (permalink / raw)
To: akpm; +Cc: paulmck, aryabinin, glider, walter-zh.wu, linux-kernel, linux-mm
From: Zqiang <qiang.zhang@windriver.com>
Add kasan_record_aux_stack function for kvfree_call_rcu function to
record call stacks.
Cc: Walter Wu <walter-zh.wu@mediatek.com>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>
Signed-off-by: Zqiang <qiang.zhang@windriver.com>
---
v1->v2:
Add Cc tags.
kernel/rcu/tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
index da3414522285..a252b2f0208d 100644
--- a/kernel/rcu/tree.c
+++ b/kernel/rcu/tree.c
@@ -3506,7 +3506,7 @@ void kvfree_call_rcu(struct rcu_head *head, rcu_callback_t func)
success = true;
goto unlock_return;
}
-
+ kasan_record_aux_stack(ptr);
success = kvfree_call_rcu_add_ptr_to_bulk(krcp, ptr);
if (!success) {
run_page_cache_worker(krcp);
--
2.17.1
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