On Mon, Apr 09, 2018 at 04:05:05PM -0700, Mike Kravetz wrote: > +/* > + * We need a tag: a new tag would expand every radix_tree_node by 8 bytes, > + * so reuse a tag which we firmly believe is never set or cleared on shmem. > + */ > +#define SHMEM_TAG_PINNED PAGECACHE_TAG_TOWRITE Do we also firmly believe it's never used on hugetlbfs?
