From a0d06486b445985b8d128df172daefbae205bffd Mon Sep 17 00:00:00 2001 From: "Denis V. Lunev" Date: Wed, 24 Feb 2016 10:50:48 +0300 Subject: [PATCH] virtio-balloon: add 'available' counter The patch for the kernel part is in linux-next already: commit ac88e7c908b920866e529862f2b2f0129b254ab2 Author: Igor Redko Date: Thu Feb 18 09:23:01 2016 +1100 virtio_balloon: export 'available' memory to balloon statistics Add a new field, VIRTIO_BALLOON_S_AVAIL, to virtio_balloon memory statistics protocol, corresponding to 'Available' in /proc/meminfo. Signed-off-by: Denis V. Lunev CC: Igor Redko CC: Michael S. Tsirkin Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael S. Tsirkin --- hw/virtio/virtio-balloon.c | 1 + include/standard-headers/linux/virtio_balloon.h | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/hw/virtio/virtio-balloon.c b/hw/virtio/virtio-balloon.c index e97d403c6a..22ad25cc97 100644 --- a/hw/virtio/virtio-balloon.c +++ b/hw/virtio/virtio-balloon.c @@ -53,6 +53,7 @@ static const char *balloon_stat_names[] = { [VIRTIO_BALLOON_S_MINFLT] = "stat-minor-faults", [VIRTIO_BALLOON_S_MEMFREE] = "stat-free-memory", [VIRTIO_BALLOON_S_MEMTOT] = "stat-total-memory", + [VIRTIO_BALLOON_S_AVAIL] = "stat-available-memory", [VIRTIO_BALLOON_S_NR] = NULL }; diff --git a/include/standard-headers/linux/virtio_balloon.h b/include/standard-headers/linux/virtio_balloon.h index 2e2a6dcf3a..0df7c2efdd 100644 --- a/include/standard-headers/linux/virtio_balloon.h +++ b/include/standard-headers/linux/virtio_balloon.h @@ -51,7 +51,8 @@ struct virtio_balloon_config { #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 +#define VIRTIO_BALLOON_S_AVAIL 6 /* Amount of available memory in guest */ +#define VIRTIO_BALLOON_S_NR 7 /* * Memory statistics structure. -- 2.11.4.GIT