diff options
| author | Jonathan Helman <jonathan.helman@oracle.com> | 2018-03-20 01:14:14 +0300 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2018-04-10 21:23:55 +0300 |
| commit | 6c64fe7f2adcee21d7c4247f1ec021fd18428fc4 (patch) | |
| tree | fd2830b8ed3334508e088771b9745f6be259e7cf | |
| parent | dc32bb678e103afbcfa4d814489af0566307f528 (diff) | |
| download | linux-6c64fe7f2adcee21d7c4247f1ec021fd18428fc4.tar.xz | |
virtio_balloon: export hugetlb page allocation counts
Export the number of successful and failed hugetlb page
allocations via the virtio balloon driver. These 2 counts
come directly from the vm_events HTLB_BUDDY_PGALLOC and
HTLB_BUDDY_PGALLOC_FAIL.
Signed-off-by: Jonathan Helman <jonathan.helman@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Jason Wang <jasowang@redhat.com>
| -rw-r--r-- | drivers/virtio/virtio_balloon.c | 6 | ||||
| -rw-r--r-- | include/uapi/linux/virtio_balloon.h | 4 |
2 files changed, 9 insertions, 1 deletions
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index dfe5684000be..6b237e3f4983 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -272,6 +272,12 @@ static unsigned int update_balloon_stats(struct virtio_balloon *vb) pages_to_bytes(events[PSWPOUT])); update_stat(vb, idx++, VIRTIO_BALLOON_S_MAJFLT, events[PGMAJFAULT]); update_stat(vb, idx++, VIRTIO_BALLOON_S_MINFLT, events[PGFAULT]); +#ifdef CONFIG_HUGETLB_PAGE + update_stat(vb, idx++, VIRTIO_BALLOON_S_HTLB_PGALLOC, + events[HTLB_BUDDY_PGALLOC]); + update_stat(vb, idx++, VIRTIO_BALLOON_S_HTLB_PGFAIL, + events[HTLB_BUDDY_PGALLOC_FAIL]); +#endif #endif update_stat(vb, idx++, VIRTIO_BALLOON_S_MEMFREE, pages_to_bytes(i.freeram)); diff --git a/include/uapi/linux/virtio_balloon.h b/include/uapi/linux/virtio_balloon.h index 4e8b8304b793..40297a3181ed 100644 --- a/include/uapi/linux/virtio_balloon.h +++ b/include/uapi/linux/virtio_balloon.h @@ -53,7 +53,9 @@ struct virtio_balloon_config { #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_CACHES 7 /* Disk caches */ -#define VIRTIO_BALLOON_S_NR 8 +#define VIRTIO_BALLOON_S_HTLB_PGALLOC 8 /* Hugetlb page allocations */ +#define VIRTIO_BALLOON_S_HTLB_PGFAIL 9 /* Hugetlb page allocation failures */ +#define VIRTIO_BALLOON_S_NR 10 /* * Memory statistics structure. |