net: prevent load/store tearing on sk->sk_stamp
authorEric Dumazet <edumazet@google.com>
Tue, 5 Nov 2019 05:38:43 +0000 (21:38 -0800)
committerDavid S. Miller <davem@davemloft.net>
Wed, 6 Nov 2019 02:22:30 +0000 (18:22 -0800)
commitf75359f3ac855940c5718af10ba089b8977bf339
treeb41cebe578c5b17b8bb50e837008c3b92e504885
parente7a86c687e64ab24f88330ad24ecc9442ce40c5a
net: prevent load/store tearing on sk->sk_stamp

Add a couple of READ_ONCE() and WRITE_ONCE() to prevent
load-tearing and store-tearing in sock_read_timestamp()
and sock_write_timestamp()

This might prevent another KCSAN report.

Fixes: 3a0ed3e96197 ("sock: Make sock->sk_stamp thread-safe")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Deepa Dinamani <deepa.kernel@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/sock.h