diff --git a/src/afs/afs_osidnlc.c b/src/afs/afs_osidnlc.c
index 880702d74e..d8fea44313 100644
--- a/src/afs/afs_osidnlc.c
+++ b/src/afs/afs_osidnlc.c
@@ -61,14 +61,6 @@ int dnlct;
 
 #define dnlcHash(ts, hval) for (hval=0; *ts; ts++) { hval *= 173;  hval  += *ts;   }
 
-#if defined(AFS_FBSD80_ENV) && !defined(UKERNEL)
-#define ma_critical_enter critical_enter
-#define ma_critical_exit critical_exit
-#else
-#define ma_critical_enter() {}
-#define ma_critical_exit() {}
-#endif
-
 static struct nc *
 GetMeAnEntry(void)
 {
@@ -207,18 +199,12 @@ osi_dnlc_lookup(struct vcache *adp, char *aname, int locktype)
     vnode_t tvp;
 #endif
 
-    ma_critical_enter();
-
-    if (!afs_usednlc) {
-      ma_critical_exit();
+    if (!afs_usednlc)
       return 0;
-    }
 
     dnlcHash(ts, key);		/* leaves ts pointing at the NULL */
-    if (ts - aname >= AFSNCNAMESIZE) {
-      ma_critical_exit();
+    if (ts - aname >= AFSNCNAMESIZE)
       return 0;
-    }
     skey = key & (NHSIZE - 1);
 
     TRACE(osi_dnlc_lookupT, skey);
@@ -242,7 +228,6 @@ osi_dnlc_lookup(struct vcache *adp, char *aname, int locktype)
 	    ReleaseReadLock(&afs_xdnlc);
 	    ReleaseReadLock(&afs_xvcache);
 	    osi_dnlc_purge();
-	    ma_critical_exit();
 	    return (0);
 	}
     }
@@ -263,7 +248,6 @@ osi_dnlc_lookup(struct vcache *adp, char *aname, int locktype)
 	    ReleaseReadLock(&afs_xvcache);
 	    dnlcstats.misses++;
 	    osi_dnlc_remove(adp, aname, tvc);
-	    ma_critical_exit();
 	    return 0;
 	}
 #if defined(AFS_DARWIN80_ENV)
@@ -272,7 +256,6 @@ osi_dnlc_lookup(struct vcache *adp, char *aname, int locktype)
 	    ReleaseReadLock(&afs_xvcache);
 	    dnlcstats.misses++;
 	    osi_dnlc_remove(adp, aname, tvc);
-	    ma_critical_exit();
 	    return 0;
 	}
 	if (vnode_ref(tvp)) {
@@ -282,17 +265,9 @@ osi_dnlc_lookup(struct vcache *adp, char *aname, int locktype)
 	    AFS_GLOCK();
 	    dnlcstats.misses++;
 	    osi_dnlc_remove(adp, aname, tvc);
-	    ma_critical_exit();
 	    return 0;
 	}
-#elif defined(AFS_FBSD_ENV)
-	/* can't sleep in a critical section */
-	ma_critical_exit();
 	osi_vnhold(tvc, 0);
-	ma_critical_enter();
-#else
-	osi_vnhold(tvc, 0);
-#endif
 	ReleaseReadLock(&afs_xvcache);
 
 #ifdef	notdef
@@ -329,7 +304,6 @@ osi_dnlc_lookup(struct vcache *adp, char *aname, int locktype)
 #endif
     }
 
-    ma_critical_exit();
     return tvc;
 }