ext4的原始特性将会开始慢慢支持。 #7
Description
// 兼容特性标志
impl Ext4Superblock {
// 兼容特性标志
pub const EXT4_FEATURE_COMPAT_DIR_PREALLOC: u32 = 0x0001;
pub const EXT4_FEATURE_COMPAT_IMAGIC_INODES: u32 = 0x0002;
pub const EXT4_FEATURE_COMPAT_HAS_JOURNAL: u32 = 0x0004;
pub const EXT4_FEATURE_COMPAT_EXT_ATTR: u32 = 0x0008;
pub const EXT4_FEATURE_COMPAT_RESIZE_INODE: u32 = 0x0010;
pub const EXT4_FEATURE_COMPAT_DIR_INDEX: u32 = 0x0020;
pub const EXT4_FEATURE_COMPAT_LAZY_BG: u32 = 0x0040;
pub const EXT4_FEATURE_COMPAT_EXCLUDE_INODE: u32 = 0x0080;
pub const EXT4_FEATURE_COMPAT_EXCLUDE_BITMAP: u32 = 0x0100;
pub const EXT4_FEATURE_COMPAT_SPARSE_SUPER2: u32 = 0x0200;
pub const EXT4_FEATURE_COMPAT_FAST_COMMIT: u32 = 0x0400;
pub const EXT4_FEATURE_COMPAT_ORPHAN_FILE: u32 = 0x1000;
}
// 不兼容特性标志
impl Ext4Superblock {
pub const EXT4_FEATURE_INCOMPAT_COMPRESSION: u32 = 0x0001;
pub const EXT4_FEATURE_INCOMPAT_FILETYPE: u32 = 0x0002;
pub const EXT4_FEATURE_INCOMPAT_RECOVER: u32 = 0x0004;
pub const EXT4_FEATURE_INCOMPAT_JOURNAL_DEV: u32 = 0x0008;
pub const EXT4_FEATURE_INCOMPAT_META_BG: u32 = 0x0010;
pub const EXT4_FEATURE_INCOMPAT_EXTENTS: u32 = 0x0040;
pub const EXT4_FEATURE_INCOMPAT_64BIT: u32 = 0x0080;
pub const EXT4_FEATURE_INCOMPAT_MMP: u32 = 0x0100;
pub const EXT4_FEATURE_INCOMPAT_FLEX_BG: u32 = 0x0200;
pub const EXT4_FEATURE_INCOMPAT_EA_INODE: u32 = 0x0400;
pub const EXT4_FEATURE_INCOMPAT_DIRDATA: u32 = 0x1000;
pub const EXT4_FEATURE_INCOMPAT_CSUM_SEED: u32 = 0x2000;
pub const EXT4_FEATURE_INCOMPAT_LARGEDIR: u32 = 0x4000;
pub const EXT4_FEATURE_INCOMPAT_INLINE_DATA: u32 = 0x8000;
pub const EXT4_FEATURE_INCOMPAT_ENCRYPT: u32 = 0x10000;
}
// 只读兼容特性标志
impl Ext4Superblock {
pub const EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER: u32 = 0x0001;
pub const EXT4_FEATURE_RO_COMPAT_LARGE_FILE: u32 = 0x0002;
pub const EXT4_FEATURE_RO_COMPAT_BTREE_DIR: u32 = 0x0004;
pub const EXT4_FEATURE_RO_COMPAT_HUGE_FILE: u32 = 0x0008;
pub const EXT4_FEATURE_RO_COMPAT_GDT_CSUM: u32 = 0x0010;
pub const EXT4_FEATURE_RO_COMPAT_DIR_NLINK: u32 = 0x0020;
pub const EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE: u32 = 0x0040;
pub const EXT4_FEATURE_RO_COMPAT_HAS_SNAPSHOT: u32 = 0x0080;
pub const EXT4_FEATURE_RO_COMPAT_QUOTA: u32 = 0x0100;
pub const EXT4_FEATURE_RO_COMPAT_BIGALLOC: u32 = 0x0200;
pub const EXT4_FEATURE_RO_COMPAT_METADATA_CSUM: u32 = 0x0400;
pub const EXT4_FEATURE_RO_COMPAT_REPLICA: u32 = 0x0800;
pub const EXT4_FEATURE_RO_COMPAT_READONLY: u32 = 0x1000;
pub const EXT4_FEATURE_RO_COMPAT_PROJECT: u32 = 0x2000;
pub const EXT4_FEATURE_RO_COMPAT_VERITY: u32 = 0x8000;
pub const EXT4_FEATURE_RO_COMPAT_ORPHAN_PRESENT: u32 = 0x10000;
}项目将会持续推进支持这些feature