2.4.12-ac4

 lib

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla/lib/brlock.c linux.ac/lib/brlock.c
--- linux.vanilla/lib/brlock.c   Sat Jun 30 03:38:26 2001
+++ linux.ac/lib/brlock.c   Sun Oct 21 18:38:23 2001
@@ -54,6 +54,7 @@
       if (__brlock_array[cpu_logical_map(i)][idx] != 0) {
          spin_unlock(&__br_write_locks[idx].lock);
          barrier();
+         cpu_relax();
          goto again;
       }
 }