Signed-off-by: Andrew Morton <akpm@osdl.org>
Index: linux-2.6.8-rc1/fs/dcache.c
===================================================================
--- linux-2.6.8-rc1.orig/fs/dcache.c	2004-07-15 02:41:40.000000000 +1000
+++ linux-2.6.8-rc1/fs/dcache.c	2004-07-15 10:03:38.303332222 +1000
@@ -379,6 +379,11 @@
 		struct dentry *dentry;
 		struct list_head *tmp;
 
+		if (unlikely((count & 255) == 0)) {
+			spin_unlock(&dcache_lock);
+			cpu_relax();
+			spin_lock(&dcache_lock);
+		}
 		tmp = dentry_unused.prev;
 		if (tmp == &dentry_unused)
 			break;