SWAP_MAP_BAD
VM_WARN_ON(count < 1 || count == SWAP_MAP_BAD);
return count && count != SWAP_MAP_BAD;
if (swp_count == 0 || swp_count == SWAP_MAP_BAD)
if (count == SWAP_MAP_BAD)
swap_map[0] = SWAP_MAP_BAD; /* omit header page */
swap_map[page_nr] = SWAP_MAP_BAD;
if (WARN_ON(count == SWAP_MAP_BAD))