Displaying 4 results from an estimated 4 matches for "virtio_balloon_thp_ord".
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virtio_balloon_thp_order
2020 Mar 12
0
[RFC for QEMU] virtio-balloon: Add option thp-order to set VIRTIO_BALLOON_F_THP_ORDER
...t; - memory_region_unref(section.mr);
> - continue;
> - }
> + if (virtio_has_feature(s->host_features,
> + VIRTIO_BALLOON_F_THP_ORDER))
> + handle_size = BALLOON_PAGE_SIZE << VIRTIO_BALLOON_THP_ORDER;
> +
> + while (handle_size > 0) {
> + section = memory_region_find(get_system_memory(), pa,
> + BALLOON_PAGE_SIZE);
> + if (!section.mr) {
> + trace_virtio_balloon_bad_add...
2020 Mar 12
0
[RFC for Linux] virtio_balloon: Add VIRTIO_BALLOON_F_THP_ORDER to handle THP spilt issue
...d num_pfns;
> struct page *page;
> LIST_HEAD(pages);
> + int page_order = 0;
>
> /* We can only do one array worth at a time. */
> num = min(num, ARRAY_SIZE(vb->pfns));
>
> + if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_THP_ORDER))
> + page_order = VIRTIO_BALLOON_THP_ORDER;
> +
> for (num_pfns = 0; num_pfns < num;
> num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) {
> - struct page *page = balloon_page_alloc();
> + struct page *page;
> +
> + if (page_order)
> + page = alloc_pages(__GFP_HIGHMEM |
> + __GFP_KSWAPD_RECLAIM...
2020 Mar 12
2
[RFC for Linux] virtio_balloon: Add VIRTIO_BALLOON_F_THP_ORDER to handle THP spilt issue
...d num_pfns;
> struct page *page;
> LIST_HEAD(pages);
> + int page_order = 0;
>
> /* We can only do one array worth at a time. */
> num = min(num, ARRAY_SIZE(vb->pfns));
>
> + if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_THP_ORDER))
> + page_order = VIRTIO_BALLOON_THP_ORDER;
> +
> for (num_pfns = 0; num_pfns < num;
> num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) {
> - struct page *page = balloon_page_alloc();
> + struct page *page;
> +
> + if (page_order)
> + page = alloc_pages(__GFP_HIGHMEM |
> + __GFP_KSWAPD_RECLAIM...
2020 Mar 12
2
[RFC for Linux] virtio_balloon: Add VIRTIO_BALLOON_F_THP_ORDER to handle THP spilt issue
...d num_pfns;
> struct page *page;
> LIST_HEAD(pages);
> + int page_order = 0;
>
> /* We can only do one array worth at a time. */
> num = min(num, ARRAY_SIZE(vb->pfns));
>
> + if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_THP_ORDER))
> + page_order = VIRTIO_BALLOON_THP_ORDER;
> +
> for (num_pfns = 0; num_pfns < num;
> num_pfns += VIRTIO_BALLOON_PAGES_PER_PAGE) {
> - struct page *page = balloon_page_alloc();
> + struct page *page;
> +
> + if (page_order)
> + page = alloc_pages(__GFP_HIGHMEM |
> + __GFP_KSWAPD_RECLAIM...