116 		unsigned long old_addr, unsigned long old_end,  in move_ptes()  argument
124 	unsigned long len = old_end - old_addr;  in move_ptes()
151 	old_pte = pte_offset_map_lock(mm, old_pmd, old_addr, &old_ptl);  in move_ptes()
159 	for (; old_addr < old_end; old_pte++, old_addr += PAGE_SIZE,  in move_ptes()
164 		pte = ptep_get_and_clear(mm, old_addr, old_pte);  in move_ptes()
178 		pte = move_pte(pte, new_vma->vm_page_prot, old_addr, new_addr);  in move_ptes()
195 static bool move_normal_pmd(struct vm_area_struct *vma, unsigned long old_addr,  in move_normal_pmd()  argument
245 	flush_tlb_range(vma, old_addr, old_addr + PMD_SIZE);  in move_normal_pmd()
255 		unsigned long old_addr, struct vm_area_struct *new_vma,  in move_page_tables()  argument
263 	old_end = old_addr + len;  in move_page_tables()
264 	flush_cache_range(vma, old_addr, old_end);  in move_page_tables()
267 				old_addr, old_end);  in move_page_tables()
270 	for (; old_addr < old_end; old_addr += extent, new_addr += extent) {  in move_page_tables()
272 		next = (old_addr + PMD_SIZE) & PMD_MASK;  in move_page_tables()
274 		extent = next - old_addr;  in move_page_tables()
275 		if (extent > old_end - old_addr)  in move_page_tables()
276 			extent = old_end - old_addr;  in move_page_tables()
280 		old_pmd = get_old_pmd(vma->vm_mm, old_addr);  in move_page_tables()
292 				moved = move_huge_pmd(vma, old_addr, new_addr,  in move_page_tables()
299 			split_huge_pmd(vma, old_pmd, old_addr);  in move_page_tables()
311 			moved = move_normal_pmd(vma, old_addr, new_addr,  in move_page_tables()
321 		move_ptes(vma, old_pmd, old_addr, old_addr + extent, new_vma,  in move_page_tables()
327 	return len + old_addr - old_end;	/* how much done */  in move_page_tables()
331 		unsigned long old_addr, unsigned long old_len,  in move_vma()  argument
361 	err = ksm_madvise(vma, old_addr, old_addr + old_len,  in move_vma()
366 	new_pgoff = vma->vm_pgoff + ((old_addr - vma->vm_start) >> PAGE_SHIFT);  in move_vma()
372 	moved_len = move_page_tables(vma, old_addr, new_vma, new_addr, old_len,  in move_vma()
386 		move_page_tables(new_vma, new_addr, vma, old_addr, moved_len,  in move_vma()
390 		old_addr = new_addr;  in move_vma()
394 		arch_remap(mm, old_addr, old_addr + old_len,  in move_vma()
402 		if (old_addr > vma->vm_start &&  in move_vma()
403 		    old_addr + old_len < vma->vm_end)  in move_vma()
449 	if (do_munmap(mm, old_addr, old_len, uf_unmap) < 0) {  in move_vma()