256 				 unsigned long index,  in do_u64_read()  argument
261 	if (index > ULONG_MAX / 8)  in do_u64_read()
262 		fatal("index overflow: %lu\n", index);  in do_u64_read()
264 	bytes = pread(fd, buf, count * 8, (off_t)index * 8);  in do_u64_read()
276 				     unsigned long index,  in kpageflags_read()  argument
279 	return do_u64_read(kpageflags_fd, opt_kpageflags, buf, index, pages);  in kpageflags_read()
283 				      unsigned long index,  in kpagecgroup_read()  argument
289 	return do_u64_read(kpagecgroup_fd, opt_kpageflags, buf, index, pages);  in kpagecgroup_read()
293 				     unsigned long index,  in kpagecount_read()  argument
298 			    buf, index, pages);  in kpagecount_read()
302 				  unsigned long index,  in pagemap_read()  argument
305 	return do_u64_read(pagemap_fd, "/proc/pid/pagemap", buf, index, pages);  in pagemap_read()
380 	static unsigned long index;  in show_page_range()  local
384 	    offset == index + count && size && voffset == voff + count) {  in show_page_range()
399 				index, count, page_flag_name(flags0));  in show_page_range()
405 	index  = offset;  in show_page_range()
664 		     unsigned long index,  in walk_pfn()  argument
687 		pages = kpageflags_read(buf, index, batch);  in walk_pfn()
691 		if (kpagecgroup_read(cgi, index, pages) != pages)  in walk_pfn()
694 		if (kpagecount_read(cnt, index, pages) != pages)  in walk_pfn()
698 			add_page(voffset + i, index + i,  in walk_pfn()
701 		index += pages;  in walk_pfn()
727 static void walk_vma(unsigned long index, unsigned long count)  in walk_vma()  argument
737 		pages = pagemap_read(buf, index, batch);  in walk_vma()
744 				walk_pfn(index + i, pfn, 1, buf[i]);  in walk_vma()
746 				walk_swap(index + i, buf[i]);  in walk_vma()
749 		index += pages;  in walk_vma()
754 static void walk_task(unsigned long index, unsigned long count)  in walk_task()  argument
756 	const unsigned long end = index + count;  in walk_task()
760 	while (index < end) {  in walk_task()
762 		while (pg_end[i] <= index)  in walk_task()
768 		start = max_t(unsigned long, pg_start[i], index);  in walk_task()
769 		index = min_t(unsigned long, pg_end[i], end);  in walk_task()
771 		assert(start < index);  in walk_task()
772 		walk_vma(start, index - start);  in walk_task()