On 06/08/18 at 09:13am, Dave Hansen wrote: > On 06/08/2018 08:17 AM, Baoquan He wrote: > > > > Then inside alloc_usemap_and_memmap(), For each node, we get how many > > present sections on this node, call hook alloc_func(). Then we update > > the pointer to point at a new position of usemap_map[] or map_map[]. > > I think this is the key. > > alloc_usemap_and_memmap() is passed in a "void *" that it needs to > update as things get consumed. But, it knows only the quantity of > objects consumed and not the type. This effectively tells it enough > about the type to let it update the pointer as objects are consumed. > > Right? > > Can we get that in the changelog? Hmm, I like above sentences very much, thanks. Do you means putting it in changelog, but not commit log of patch 3/4, right? I can do this when repost. Thanks Baoquan
