diff -b -r -c -N 10Mar94.all/lib/ardp/hostname2adr.c 10Mar94+/lib/ardp/hostname2adr.c
*** 10Mar94.all/lib/ardp/hostname2adr.c	Tue Apr 26 16:33:30 1994
--- 10Mar94+/lib/ardp/hostname2adr.c	Wed Apr 27 01:07:43 1994
***************
*** 98,104 ****
  {
        DNSCACHE    dc, nextdc;
         if (alldnscache_count > DNSCACHE_MAX) {
! 	 p_th_mutex_lock(p_th_mutexALLDNSCACHE);
  	 for (dc = alldnscaches; dc ; dc = nextdc) {
  	   nextdc = dc->next;
  	   if (!(--dc->usecount)) {
--- 98,105 ----
  {
    DNSCACHE    dc, nextdc;
    if (alldnscache_count > DNSCACHE_MAX) {
!     if (! p_th_mutex_trylock(p_th_mutexALLDNSCACHE)) {
!       /* Since this is only optimisation, skip if its locked already */
  	 for (dc = alldnscaches; dc ; dc = nextdc) {
  	   nextdc = dc->next;
  	   if (!(--dc->usecount)) {
***************
*** 109,114 ****
--- 110,116 ----
  	 }
  	 p_th_mutex_unlock(p_th_mutexALLDNSCACHE);
         }
+   }
  }
  
  int