tree 428615c37202b0d44173735a2efe04651aff469b
parent e0d694d638dba768b47be31c22e1a9b4f862f561
author Eric Dumazet <edumazet@google.com> 1570763863 -0700
committer David S. Miller <davem@davemloft.net> 1570986788 -0700

tcp: annotate tp->urg_seq lockless reads

There two places where we fetch tp->urg_seq while
this field can change from IRQ or other cpu.

We need to add READ_ONCE() annotations, and also make
sure write side use corresponding WRITE_ONCE() to avoid
store-tearing.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>