hammer2_read_file
static int hammer2_read_file(hammer2_inode_t *ip, struct uio *uio,
error = hammer2_read_file(ip, ap->a_uio, 0);
error = hammer2_read_file(ip, uio, seqcount);
static int hammer2_read_file(hammer2_inode_t *ip, struct uio *uio,
error = hammer2_read_file(ip, ap->a_uio, 0);
error = hammer2_read_file(ip, uio, seqcount);