virtio-balloon: include statistics of disk/file caches

Signed-off-by: Tomáš Golembiovský <[email protected]> Reviewed-by: Michael S. Tsirkin <[email protected]> Signed-off-by: Michael S. Tsirkin <[email protected]>
merwick · Feb 13, 2018 · bf1e714 · bf1e714
1 parent e89e7ea
commit bf1e714
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diff --git 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
 };
 

diff --git 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.