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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: Denis V. Lunev <den@openvz.org>
CC: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Denis V. Lunev 2015-08-20 00:49:48 +03:00 committed by Michael S. Tsirkin
parent 5fa3142da1
commit b4d3403732
1 changed files with 4 additions and 4 deletions
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8
drivers/virtio/virtio_balloon.c
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@ -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;
}