CIFS_INO_INVALID_MAPPING
set_bit(CIFS_INO_INVALID_MAPPING, &cifsi->flags);
set_bit(CIFS_INO_INVALID_MAPPING, &cifs_i->flags);
if (test_and_clear_bit(CIFS_INO_INVALID_MAPPING, flags)) {
set_bit(CIFS_INO_INVALID_MAPPING, flags);
set_bit(CIFS_INO_INVALID_MAPPING, &CIFS_I(inode)->flags);