--- zzzz-none-000/linux-2.4.17/fs/dcache.c	2001-12-21 17:41:55.000000000 +0000
+++ sangam-fb-322/linux-2.4.17/fs/dcache.c	2004-11-24 13:22:16.000000000 +0000
@@ -320,11 +320,24 @@
  
 void prune_dcache(int count)
 {
+	DEFINE_LOCK_COUNT();
+
 	spin_lock(&dcache_lock);
+
+redo:
 	for (;;) {
 		struct dentry *dentry;
 		struct list_head *tmp;
 
+		if (TEST_LOCK_COUNT(100)) {
+			RESET_LOCK_COUNT();
+			debug_lock_break(1);
+			if (conditional_schedule_needed()) {
+				break_spin_lock(&dcache_lock);
+				goto redo;
+			}
+		}
+
 		tmp = dentry_unused.prev;
 
 		if (tmp == &dentry_unused)
@@ -480,6 +493,8 @@
 	struct list_head *next;
 	int found = 0;
 
+	DEFINE_LOCK_COUNT();
+
 	spin_lock(&dcache_lock);
 repeat:
 	next = this_parent->d_subdirs.next;
@@ -493,6 +508,12 @@
 			list_add(&dentry->d_lru, dentry_unused.prev);
 			found++;
 		}
+		if (TEST_LOCK_COUNT(500) && found > 10) {
+			debug_lock_break(1);
+			if (conditional_schedule_needed())
+				goto out;
+			RESET_LOCK_COUNT();
+		}
 		/*
 		 * Descend a level if the d_subdirs list is non-empty.
 		 */
@@ -517,6 +538,7 @@
 #endif
 		goto resume;
 	}
+out:
 	spin_unlock(&dcache_lock);
 	return found;
 }