[Qemu-devel] [PULL 26/26] virtio-balloon: include statistics of disk/file caches

[Michael S. Tsirkin]

From: Tomáš Golembiovský <address@hidden>

Signed-off-by: Tomáš Golembiovský <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
 include/standard-headers/linux/virtio_balloon.h | 3 ++-
 hw/virtio/virtio-balloon.c                      | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/standard-headers/linux/virtio_balloon.h 
b/include/standard-headers/linux/virtio_balloon.h
index 9d06ccd..7b0a41b 100644
--- a/include/standard-headers/linux/virtio_balloon.h
+++ b/include/standard-headers/linux/virtio_balloon.h
@@ -52,7 +52,8 @@ struct virtio_balloon_config {
 #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_AVAIL    6   /* Available memory as in /proc */
-#define VIRTIO_BALLOON_S_NR       7
+#define VIRTIO_BALLOON_S_CACHES   7   /* Disk caches */
+#define VIRTIO_BALLOON_S_NR       8
 
 /*
  * Memory statistics structure.
diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c
index f2104bf..179c8f5 100644
--- a/hw/virtio/virtio-balloon.c
+++ b/hw/virtio/virtio-balloon.c
@@ -50,6 +50,7 @@ static const char *balloon_stat_names[] = {
    [VIRTIO_BALLOON_S_MEMFREE] = "stat-free-memory",
    [VIRTIO_BALLOON_S_MEMTOT] = "stat-total-memory",
    [VIRTIO_BALLOON_S_AVAIL] = "stat-available-memory",
+   [VIRTIO_BALLOON_S_CACHES] = "stat-disk-caches",
    [VIRTIO_BALLOON_S_NR] = NULL
 };
 
-- 
MST