On 06/12/2014 02:48 PM, Naoya Horiguchi wrote: > This variable is helpful if we try to share the callback function between > multiple slots (for example between pte_entry() and pmd_entry()) as done > in later patches. smaps_pte() already does this: static int smaps_pte(pte_t *pte, unsigned long addr, unsigned long end, struct mm_walk *walk) ... unsigned long ptent_size = end - addr; Other than the hugetlb handler, can't we always imply the size from end-addr? -- 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>