HFSPLUS_SB_CASEFOLD
set_bit(HFSPLUS_SB_CASEFOLD, &HFSPLUS_SB(sb)->flags);
casefold = test_bit(HFSPLUS_SB_CASEFOLD, &HFSPLUS_SB(sb)->flags);
casefold = test_bit(HFSPLUS_SB_CASEFOLD, &HFSPLUS_SB(sb)->flags);
clear_bit(HFSPLUS_SB_CASEFOLD, &mock_sb->sb_info.flags);
set_bit(HFSPLUS_SB_CASEFOLD, &mock_sb->sb_info.flags);
clear_bit(HFSPLUS_SB_CASEFOLD, &mock_sb->sb_info.flags);
set_bit(HFSPLUS_SB_CASEFOLD, &mock_sb->sb_info.flags);
set_bit(HFSPLUS_SB_CASEFOLD, &mock_sb->sb_info.flags);
clear_bit(HFSPLUS_SB_CASEFOLD, &mock_sb->sb_info.flags);
clear_bit(HFSPLUS_SB_CASEFOLD, &ptr->sb_info.flags);