libc/stdlib/malloc.c

2657 	size_t old_ndirty, run_ind, total_pages, need_pages, rem_pages, i;
2665 	need_pages = (size >> PAGE_SHIFT);
2666 	assert(need_pages > 0);
2667 	assert(need_pages <= total_pages);
2668 	rem_pages = total_pages - need_pages;
2671 	arena->nactive += need_pages;
2675 		chunk->map[run_ind+need_pages].bits = (rem_pages <<
2676 		    PAGE_SHIFT) | (chunk->map[run_ind+need_pages].bits &
2682 		    &chunk->map[run_ind+need_pages]);
2685 	for (i = 0; i < need_pages; i++) {