> +#if defined(CONFIG_VIRTIO_BALLOON) || defined(CONFIG_VIRTIO_BALLOON_MODULE) > +/* > + * Balloon pages special page->mapping. > + * users must properly allocate and initiliaze an instance of balloon_mapping, initialize > + * and set it as the page->mapping for balloon enlisted page instances. > + * > + * address_space_operations necessary methods for ballooned pages: > + * .migratepage - used to perform balloon's page migration (as is) > + * .invalidatepage - used to isolate a page from balloon's page list > + * .freepage - used to reinsert an isolated page to balloon's page list > + */ > +struct address_space *balloon_mapping; > +EXPORT_SYMBOL(balloon_mapping); Why don't you call this kvm_balloon_mapping - and when other balloon drivers use it, then change it to something more generic. Also at that future point the other balloon drivers might do it a bit differently so it might be that will be reworked completly. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>