--- 2.4.19pre10aa1/fs/buffer.c.~1~	Thu Jun  6 17:00:29 2002
+++ 2.4.19pre10aa1/fs/buffer.c	Thu Jun  6 17:07:34 2002
@@ -249,7 +249,7 @@ static int write_some_buffers(kdev_t dev
 		struct buffer_head * bh = next;
 		next = bh->b_next_free;
 
-		if (dev && bh->b_dev != dev)
+		if (dev != NODEV && bh->b_dev != dev)
 			continue;
 		if (test_and_set_bit(BH_Lock, &bh->b_state))
 			continue;
@@ -315,7 +315,7 @@ static int wait_for_buffers(kdev_t dev, 
 				__refile_buffer(bh);
 			continue;
 		}
-		if (dev && bh->b_dev != dev)
+		if (dev != NODEV && bh->b_dev != dev)
 			continue;
 
 		get_bh(bh);