swap_mapping     1557 mm/shmem.c     	struct address_space *swap_mapping;
swap_mapping     1565 mm/shmem.c     	swap_mapping = page_mapping(oldpage);
swap_mapping     1590 mm/shmem.c     	xa_lock_irq(&swap_mapping->i_pages);
swap_mapping     1591 mm/shmem.c     	error = shmem_replace_entry(swap_mapping, swap_index, oldpage, newpage);
swap_mapping     1596 mm/shmem.c     	xa_unlock_irq(&swap_mapping->i_pages);