===== fs/super.c 1.108 vs edited =====
--- 1.108/fs/super.c	Wed Oct  1 15:36:45 2003
+++ edited/fs/super.c	Tue Oct 14 22:52:12 2003
@@ -528,14 +528,22 @@
  * filesystems which don't use real block-devices.  -- jrs
  */
 
-enum {Max_anon = 256};
-static unsigned long unnamed_dev_in_use[Max_anon/(8*sizeof(unsigned long))];
+enum {Max_anon = PAGE_SIZE * 8};
+static void *unnamed_dev_in_use = NULL;
 static spinlock_t unnamed_dev_lock = SPIN_LOCK_UNLOCKED;/* protects the above */
 
 int set_anon_super(struct super_block *s, void *data)
 {
 	int dev;
 	spin_lock(&unnamed_dev_lock);
+
+	if (!unnamed_dev_in_use)
+		unnamed_dev_in_use = (void *)get_zeroed_page(GFP_KERNEL);
+	if (!unnamed_dev_in_use) {
+		spin_unlock(&unnamed_dev_lock);
+		return -ENOMEM;
+	}
+
 	dev = find_first_zero_bit(unnamed_dev_in_use, Max_anon);
 	if (dev == Max_anon) {
 		spin_unlock(&unnamed_dev_lock);