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9403cf2302
Since the request socket is created locally, it'd make more sense to use reqsk_free() instead of reqsk_put() in TFO and syncookies' error path. However, tcp_get_cookie_sock() may set ->rsk_refcnt before freeing the socket; tcp_conn_request() may also have non-null ->rsk_refcnt because of tcp_try_fastopen(). In both cases 'req' hasn't been exposed to the outside world and is safe to free immediately, but that'd trigger the WARN_ON_ONCE in reqsk_free(). Define __reqsk_free() for these situations where we know nobody's referencing the socket, even though ->rsk_refcnt might be non-null. Now we can consolidate the error path of tcp_get_cookie_sock() and tcp_conn_request(). Signed-off-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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