net: annotate data-race around sk->sk_txrehash
sk_getsockopt() runs locklessly. This means sk->sk_txrehash
can be read while other threads are changing its value.
Other locations were handled in commit
cb6cd2cec799
("tcp: Change SYN ACK retransmit behaviour to account for rehash")
Fixes:
26859240e4ee ("txhash: Add socket option to control TX hash rethink behavior")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Akhmat Karakotov <hmukos@yandex-team.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>