X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=include%2Flinux%2Fidr.h;h=dd846df8cd32182f6740ea59f6451079deb3060d;hb=d565b0a1a9b6ee7dff46e1f68b26b526ac11ae50;hp=fa035f96f2a3b340c468e4b58d9010df3b21be69;hpb=29ca069cc6572cce62e42a27efdab01f50190616;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/idr.h b/include/linux/idr.h
index fa035f96f2a..dd846df8cd3 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -52,13 +52,14 @@ struct idr_layer {
 	unsigned long		 bitmap; /* A zero bit means "space here" */
 	struct idr_layer	*ary[1<<IDR_BITS];
 	int			 count;	 /* When zero, we can release it */
+	int			 layer;	 /* distance from leaf */
 	struct rcu_head		 rcu_head;
 };
 
 struct idr {
 	struct idr_layer *top;
 	struct idr_layer *id_free;
-	int		  layers;
+	int		  layers; /* only valid without concurrent changes */
 	int		  id_free_cnt;
 	spinlock_t	  lock;
 };