bsd/vfs/vfs_cache.c

635 			tcred = vp->v_cred;
636 			vp->v_cred = NOCRED;
808  * following fields in the vnode: v_cred_timestamp, v_cred, v_authorized_actions
809  * we use this lock so that we can look at the v_cred and v_authorized_actions
826 	    IS_VALID_CRED(vp->v_cred)) {
830 	        tcred = vp->v_cred;
831 		vp->v_cred = NOCRED;
879 		if (vp->v_cred == ucred && (vp->v_authorized_actions & action) == action)
923 	if (vp->v_cred != ucred) {
928 		tcred = vp->v_cred;
929 		vp->v_cred = ucred;
1103 		if ((dp->v_cred != ucred || !(dp->v_authorized_actions & KAUTH_VNODE_SEARCH)) &&
1887 			(vp->v_cred == NOCRED) &&
1905 	tcred = vp->v_cred;
1906 	vp->v_cred = NOCRED;