Update the NR_BALLOON_PAGES counter when pages are added to or removed from the virtio balloon. Signed-off-by: Nico Pache <npache@xxxxxxxxxx> --- drivers/virtio/virtio_balloon.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c index 89da052f4f68..406414dbb477 100644 --- a/drivers/virtio/virtio_balloon.c +++ b/drivers/virtio/virtio_balloon.c @@ -274,6 +274,8 @@ static unsigned int fill_balloon(struct virtio_balloon *vb, size_t num) set_page_pfns(vb, vb->pfns + vb->num_pfns, page); vb->num_pages += VIRTIO_BALLOON_PAGES_PER_PAGE; + mod_node_page_state(page_pgdat(page), NR_BALLOON_PAGES, + VIRTIO_BALLOON_PAGES_PER_PAGE); if (!virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_DEFLATE_ON_OOM)) adjust_managed_page_count(page, -1); @@ -324,6 +326,8 @@ static unsigned int leak_balloon(struct virtio_balloon *vb, size_t num) set_page_pfns(vb, vb->pfns + vb->num_pfns, page); list_add(&page->lru, &pages); vb->num_pages -= VIRTIO_BALLOON_PAGES_PER_PAGE; + mod_node_page_state(page_pgdat(page), NR_BALLOON_PAGES, + -VIRTIO_BALLOON_PAGES_PER_PAGE); } num_freed_pages = vb->num_pfns; -- 2.48.1
