This patch series implements two optimizations: 1) transfer pages in chuncks between the guest and host; 2) transfer the guest unused pages to the host so that they can be skipped to migrate in live migration. Please read each patch commit log for details. Changes: v7->v8: 1) Use only one chunk format, instead of two. 2) re-write the virtio-balloon implementation patch. 3) commit changes 4) patch re-org Liang Li (4): virtio-balloon: deflate via a page list virtio-balloon: VIRTIO_BALLOON_F_CHUNK_TRANSFER mm: add inerface to offer info about unused pages virtio-balloon: VIRTIO_BALLOON_F_HOST_REQ_VQ drivers/virtio/virtio_balloon.c | 533 ++++++++++++++++++++++++++++++++---- include/linux/mm.h | 3 + include/uapi/linux/virtio_balloon.h | 31 +++ mm/page_alloc.c | 114 ++++++++ 4 files changed, 635 insertions(+), 46 deletions(-) -- 2.7.4
