search for: page_bmap_num

...ap_num; i++) { + vb->page_bmap[i] = kmalloc(VIRTIO_BALLOON_PAGE_BMAP_SIZE, + GFP_KERNEL); + if (vb->page_bmap[i]) + allocated_bmap_num++; + else + break; + } + + return allocated_bmap_num; +} + +static void free_extended_page_bmap(struct virtio_balloon *vb, + unsigned int page_bmap_num) +{ + unsigned int i; + + for (i = VIRTIO_BALLOON_PAGE_BMAP_DEFAULT_NUM; i < page_bmap_num; + i++) { + kfree(vb->page_bmap[i]); + vb->page_bmap[i] = NULL; + page_bmap_num--; + } +} + +static void clear_page_bmap(struct virtio_balloon *vb, + unsigned int page_bmap_num) +{ + in...

...ON_PAGE_BMAP_SIZE, > + GFP_KERNEL); > + if (vb->page_bmap[i]) > + allocated_bmap_num++; > + else > + break; > + } > + > + return allocated_bmap_num; > +} > + > +static void free_extended_page_bmap(struct virtio_balloon *vb, > + unsigned int page_bmap_num) > +{ > + unsigned int i; > + > + for (i = VIRTIO_BALLOON_PAGE_BMAP_DEFAULT_NUM; i < page_bmap_num; > + i++) { > + kfree(vb->page_bmap[i]); > + vb->page_bmap[i] = NULL; > + page_bmap_num--; > + } > +} > + > +static void clear_page_bmap(struct vir...

...ON_PAGE_BMAP_SIZE, > + GFP_KERNEL); > + if (vb->page_bmap[i]) > + allocated_bmap_num++; > + else > + break; > + } > + > + return allocated_bmap_num; > +} > + > +static void free_extended_page_bmap(struct virtio_balloon *vb, > + unsigned int page_bmap_num) > +{ > + unsigned int i; > + > + for (i = VIRTIO_BALLOON_PAGE_BMAP_DEFAULT_NUM; i < page_bmap_num; > + i++) { > + kfree(vb->page_bmap[i]); > + vb->page_bmap[i] = NULL; > + page_bmap_num--; > + } > +} > + > +static void clear_page_bmap(struct vir...

..._chunk.page_bmap[i] = + kmalloc(VIRTIO_BALLOON_PAGE_BMAP_SIZE, GFP_KERNEL); + if (vb->balloon_page_chunk.page_bmap[i]) + allocated_bmap_num++; + else + break; + } + + return allocated_bmap_num; +} + +static void free_extended_page_bmap(struct virtio_balloon *vb, + unsigned int page_bmap_num) +{ + unsigned int i; + + for (i = VIRTIO_BALLOON_PAGE_BMAP_DEFAULT_NUM; i < page_bmap_num; + i++) { + kfree(vb->balloon_page_chunk.page_bmap[i]); + vb->balloon_page_chunk.page_bmap[i] = NULL; + page_bmap_num--; + } +} + +static void clear_page_bmap(struct virtio_balloon *vb, +...

This patch series implements the follow two things: 1) Optimization of balloon page transfer: instead of transferring balloon pages to host one by one, the new mechanism transfers them in chunks. 2) A mechanism to report info of guest unused pages: the pages have been unused at some time between when host sent command and when guest reported them. Host uses that by tracking memory changes and

This patch series implements the follow two things: 1) Optimization of balloon page transfer: instead of transferring balloon pages to host one by one, the new mechanism transfers them in chunks. 2) A mechanism to report info of guest unused pages: the pages have been unused at some time between when host sent command and when guest reported them. Host uses that by tracking memory changes and

This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages. Liang Li

This patch series enhances the existing virtio-balloon with the following new features: 1) fast ballooning: transfer ballooned pages between the guest and host in chunks, instead of one by one; and 2) cmdq: a new virtqueue to send commands between the device and driver. Currently, it supports commands to report memory stats (replace the old statq mechanism) and report guest unused pages. Liang Li

...GE_BMAP_SIZE, GFP_KERNEL); > + if (vb->balloon_page_chunk.page_bmap[i]) > + allocated_bmap_num++; > + else > + break; > + } > + > + return allocated_bmap_num; > +} > + > +static void free_extended_page_bmap(struct virtio_balloon *vb, > + unsigned int page_bmap_num) > +{ > + unsigned int i; > + > + for (i = VIRTIO_BALLOON_PAGE_BMAP_DEFAULT_NUM; i < page_bmap_num; > + i++) { > + kfree(vb->balloon_page_chunk.page_bmap[i]); > + vb->balloon_page_chunk.page_bmap[i] = NULL; > + page_bmap_num--; > + } > +} > + > +...

...GE_BMAP_SIZE, GFP_KERNEL); > + if (vb->balloon_page_chunk.page_bmap[i]) > + allocated_bmap_num++; > + else > + break; > + } > + > + return allocated_bmap_num; > +} > + > +static void free_extended_page_bmap(struct virtio_balloon *vb, > + unsigned int page_bmap_num) > +{ > + unsigned int i; > + > + for (i = VIRTIO_BALLOON_PAGE_BMAP_DEFAULT_NUM; i < page_bmap_num; > + i++) { > + kfree(vb->balloon_page_chunk.page_bmap[i]); > + vb->balloon_page_chunk.page_bmap[i] = NULL; > + page_bmap_num--; > + } > +} > + > +...