writeback: fixups for !dirty_writeback_centisecs

[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..a50ecd1 100644 (file)
--- a/include/linux/virtio_balloon.h
+++ b/include/linux/virtio_balloon.h
@@ -1,12 +1,16 @@
 #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_ids.h>
 #include <linux/virtio_config.h>
 
-/* The ID for virtio_balloon */
-#define VIRTIO_ID_BALLOON      5
-
 /* The feature bitmap for virtio balloon */
 #define VIRTIO_BALLOON_F_MUST_TELL_HOST        0 /* Tell before reclaiming pages */
+#define VIRTIO_BALLOON_F_STATS_VQ      1 /* Memory Stats virtqueue */
+
+/* Size of a PFN in the balloon interface. */
+#define VIRTIO_BALLOON_PFN_SHIFT 12
 
 struct virtio_balloon_config
 {
@@ -15,4 +19,18 @@ struct virtio_balloon_config
        /* Number of pages we've actually got in balloon. */
        __le32 actual;
 };
+
+#define VIRTIO_BALLOON_S_SWAP_IN  0   /* Amount of memory swapped in */
+#define VIRTIO_BALLOON_S_SWAP_OUT 1   /* Amount of memory swapped out */
+#define VIRTIO_BALLOON_S_MAJFLT   2   /* Number of major faults */
+#define VIRTIO_BALLOON_S_MINFLT   3   /* Number of minor faults */
+#define VIRTIO_BALLOON_S_MEMFREE  4   /* Total amount of free memory */
+#define VIRTIO_BALLOON_S_MEMTOT   5   /* Total amount of memory */
+#define VIRTIO_BALLOON_S_NR       6
+
+struct virtio_balloon_stat {
+       u16 tag;
+       u64 val;
+} __attribute__((packed));
+
 #endif /* _LINUX_VIRTIO_BALLOON_H */