Re: [PATCH v11 3/6] virtio-balloon: VIRTIO_BALLOON_F_PAGE_CHUNKS

[Michael S. Tsirkin]

On Tue, Jun 13, 2017 at 10:59:07AM -0700, Dave Hansen wrote:
> On 06/13/2017 10:56 AM, Michael S. Tsirkin wrote:
> >> +/* The size of one page_bmap used to record inflated/deflated pages. */
> >> +#define VIRTIO_BALLOON_PAGE_BMAP_SIZE	(8 * PAGE_SIZE)
> > At this size, you probably want alloc_pages to avoid kmalloc
> > overhead.
> 
> For slub, at least, kmalloc() just calls alloc_pages() basically
> directly.  There's virtually no overhead.
> 
> 

OK then.

-- 
MST