NETFS_RREQ_UPLOAD_TO_SERVER
__set_bit(NETFS_RREQ_UPLOAD_TO_SERVER, &wreq->flags);
unlikely(!test_bit(NETFS_RREQ_UPLOAD_TO_SERVER, &wreq->flags))) {
set_bit(NETFS_RREQ_UPLOAD_TO_SERVER, &wreq->flags);
if (__test_and_set_bit(NETFS_RREQ_UPLOAD_TO_SERVER, &wreq->flags))