| commit | 7db48e983930285b765743ebd665aecf9850582b | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Thu Oct 10 20:17:40 2019 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Sun Oct 13 10:13:08 2019 -0700 |
| tree | 3ee9dad33e8d9a0d27cc576a5f3ebf077f5af2d0 | |
| parent | dba7d9b8c739df27ff3a234c81d6c6b23e3986fa [diff] |
tcp: annotate tp->copied_seq lockless reads There are few places where we fetch tp->copied_seq while this field can change from IRQ or other cpu. We need to add READ_ONCE() annotations, and also make sure write sides use corresponding WRITE_ONCE() to avoid store-tearing. Note that tcp_inq_hint() was already using READ_ONCE(tp->copied_seq) Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>