[pve-kernel-2.6.32.git] / fix-idr-header-for-drbd-compilation.patch

The DRBD module does not compile without that 

Those definitions are part of the original RHEL kernel. Not sure
why openvz patches removes that.

--- ../linux-2.6-2.6.32/include/linux/idr.h	2013-11-14 11:18:46.000000000 +0100
+++ linux-2.6.32-358.23.2.el6/include/linux/idr.h	2013-09-14 10:52:55.000000000 +0200
@@ -42,6 +42,12 @@
 #define MAX_ID_BIT (1U << MAX_ID_SHIFT)
 #define MAX_ID_MASK (MAX_ID_BIT - 1)
 
+/* Leave the possibility of an incomplete final layer */
+#define MAX_LEVEL (MAX_ID_SHIFT + IDR_BITS - 1) / IDR_BITS
+
+/* Number of id_layer structs to leave in free list */
+#define IDR_FREE_MAX MAX_LEVEL + MAX_LEVEL
+
 struct idr_layer {
 	unsigned long		 bitmap; /* A zero bit means "space here" */
 	struct idr_layer	*ary[1<<IDR_BITS];
Commit	Line	Data
88f21415 DM	1	The DRBD module does not compile without that
	2
	3	Those definitions are part of the original RHEL kernel. Not sure
	4	why openvz patches removes that.
	5
	6	--- ../linux-2.6-2.6.32/include/linux/idr.h 2013-11-14 11:18:46.000000000 +0100
	7	+++ linux-2.6.32-358.23.2.el6/include/linux/idr.h 2013-09-14 10:52:55.000000000 +0200
	8	@@ -42,6 +42,12 @@
	9	#define MAX_ID_BIT (1U << MAX_ID_SHIFT)
	10	#define MAX_ID_MASK (MAX_ID_BIT - 1)
	11
	12	+/* Leave the possibility of an incomplete final layer */
	13	+#define MAX_LEVEL (MAX_ID_SHIFT + IDR_BITS - 1) / IDR_BITS
	14	+
	15	+/* Number of id_layer structs to leave in free list */
	16	+#define IDR_FREE_MAX MAX_LEVEL + MAX_LEVEL
	17	+
	18	struct idr_layer {
	19	unsigned long bitmap; /* A zero bit means "space here" */
	20	struct idr_layer *ary[1<<IDR_BITS];