Commit a0d06486 authored by Denis V. Lunev's avatar Denis V. Lunev Committed by Michael S. Tsirkin
Browse files

virtio-balloon: add 'available' counter 



The patch for the kernel part is in linux-next already:
commit ac88e7c908b920866e529862f2b2f0129b254ab2
    Author: Igor Redko <redkoi@virtuozzo.com>
    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: default avatarDenis V. Lunev <den@openvz.org>
CC: Igor Redko <redkoi@virtuozzo.com>
CC: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent fc1769b7

hw/virtio/virtio-balloon.c

+1 −0
Original line number Diff line number Diff line
@@ -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

};

include/standard-headers/linux/virtio_balloon.h

+2 −1
Original line number Diff line number Diff line
@@ -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.