idr: cosmetic updates to struct / initializer definitions

* Tab align fields like a normal person.

* Drop the unnecessary 0 inits from IDR_INIT().

This patch is purely cosmetic.
Signed-off-by: NTejun Heo <tj@kernel.org>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/linux/idr.h

@@ -59,17 +59,13 @@ struct idr_layer {
 struct idr {
 	struct idr_layer __rcu	*top;
 	struct idr_layer	*id_free;
-	int		  layers; /* only valid without concurrent changes */
+	int			layers;	/* only valid w/o concurrent changes */
 	int			id_free_cnt;
 	spinlock_t		lock;
 };
 
 #define IDR_INIT(name)							\
 {									\
-	.top		= NULL,					\
-	.id_free	= NULL,					\
-	.layers 	= 0,					\
-	.id_free_cnt	= 0,					\
 	.lock			= __SPIN_LOCK_UNLOCKED(name.lock),	\
 }
 #define DEFINE_IDR(name)	struct idr name = IDR_INIT(name)