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Commit b4d34037 authored by Denis V. Lunev's avatar Denis V. Lunev Committed by Michael S. Tsirkin
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virtio_ballon: change stub of release_pages_by_pfn 



and rename it to release_pages_balloon. The function originally takes
arrays of pfns and now it takes pointer to struct virtio_ballon.
This change is necessary to conditionally call adjust_managed_page_count
in the next patch.

Signed-off-by: default avatarDenis V. Lunev <den@openvz.org>
CC: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 5fa3142d

drivers/virtio/virtio_balloon.c

+4 −4
Original line number Diff line number Diff line
@@ -166,13 +166,13 @@ static void fill_balloon(struct virtio_balloon *vb, size_t num) 
	mutex_unlock(&vb->balloon_lock);

}



static void release_pages_by_pfn(const u32 pfns[], unsigned int num)

static void release_pages_balloon(struct virtio_balloon *vb)

{

	unsigned int i;



	/* Find pfns pointing at start of each page, get pages and free them. */

	for (i = 0; i < num; i += VIRTIO_BALLOON_PAGES_PER_PAGE) {

		struct page *page = balloon_pfn_to_page(pfns[i]);

	for (i = 0; i < vb->num_pfns; i += VIRTIO_BALLOON_PAGES_PER_PAGE) {

		struct page *page = balloon_pfn_to_page(vb->pfns[i]);

		adjust_managed_page_count(page, 1);

		put_page(page); /* balloon reference */

	}
@@ -206,7 +206,7 @@ static unsigned leak_balloon(struct virtio_balloon *vb, size_t num) 
	if (vb->num_pfns != 0)

		tell_host(vb, vb->deflate_vq);

	mutex_unlock(&vb->balloon_lock);

	release_pages_by_pfn(vb->pfns, vb->num_pfns);

	release_pages_balloon(vb);

	return num_freed_pages;

}