We've already used rcu_read_lock/unlock inside task_classid(),
so don't use the lock/unlock pair twice in this hot path.
Signed-off-by: Li Zefan <lizf@xxxxxxxxxxxxxx>
---
net/core/sock.c | 2 --
1 files changed, 0 insertions(+), 2 deletions(-)
diff --git a/net/core/sock.c b/net/core/sock.c
index 213c856..c0bab23 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1160,9 +1160,7 @@ void sock_update_classid(struct sock *sk)
{
u32 classid;
- rcu_read_lock(); /* doing current task, which cannot vanish. */
classid = task_cls_classid(current);
- rcu_read_unlock();
if (classid && classid != sk->sk_classid)
sk->sk_classid = classid;
}
--
1.7.3.1
--
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