remove stale comment from <linux/hdreg.h>

[safe/jmp/linux-2.6] / include / linux / virtio_balloon.h

diff --git a/include/linux/virtio_balloon.h b/include/linux/virtio_balloon.h
index 979524e..8726ff7 100644 (file)
--- a/include/linux/virtio_balloon.h
+++ b/include/linux/virtio_balloon.h
@@ -1,5 +1,7 @@
 #ifndef _LINUX_VIRTIO_BALLOON_H
 #define _LINUX_VIRTIO_BALLOON_H
+/* This header is BSD licensed so anyone can use the definitions to implement
+ * compatible drivers/servers. */
 #include <linux/virtio_config.h>
 
 /* The ID for virtio_balloon */
@@ -8,6 +10,9 @@
 /* The feature bitmap for virtio balloon */
 #define VIRTIO_BALLOON_F_MUST_TELL_HOST        0 /* Tell before reclaiming pages */
 
+/* Size of a PFN in the balloon interface. */
+#define VIRTIO_BALLOON_PFN_SHIFT 12
+
 struct virtio_balloon_config
 {
        /* Number of pages host wants Guest to give up. */