lfs_chkiq
error = lfs_chkiq(ip, 1, cred, 0);
int lfs_chkiq(struct inode *, int32_t, kauth_cred_t, int);
(void)lfs_chkiq(ip, -1, NOCRED, 0);
(void) lfs_chkiq(ip, -1, cred, 0);
if ((error = lfs_chkiq(ip, 1, cred, 0)) == 0)
(void) lfs_chkiq(ip, 1, cred, FORCE);