578 lines
19 KiB
C
578 lines
19 KiB
C
/****************************************************************************
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****************************************************************************
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***
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*** This header was automatically generated from a Linux kernel header
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*** of the same name, to make information necessary for userspace to
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*** call into the kernel available to libc. It contains only constants,
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*** structures, and macros generated from the original header, and thus,
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*** contains no copyrightable information.
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***
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****************************************************************************
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****************************************************************************/
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#ifndef _EXT4_H
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#define _EXT4_H
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#include <sys/types.h>
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#undef EXT4FS_DEBUG
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#ifdef EXT4FS_DEBUG
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#define ext4_debug(f, a...) do { printk(KERN_DEBUG "EXT4-fs DEBUG (%s, %d): %s:", __FILE__, __LINE__, __func__); printk(KERN_DEBUG f, ## a); } while (0)
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#else
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#define ext4_debug(f, a...) do {} while (0)
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#endif
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#define EXT4_ERROR_INODE(inode, fmt, a...) ext4_error_inode(__func__, (inode), (fmt), ## a);
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#define EXT4_ERROR_FILE(file, fmt, a...) ext4_error_file(__func__, (file), (fmt), ## a);
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typedef int ext4_grpblk_t;
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typedef unsigned long long ext4_fsblk_t;
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typedef __u32 ext4_lblk_t;
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typedef unsigned int ext4_group_t;
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#define EXT4_MB_HINT_MERGE 0x0001
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#define EXT4_MB_HINT_RESERVED 0x0002
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#define EXT4_MB_HINT_METADATA 0x0004
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#define EXT4_MB_HINT_FIRST 0x0008
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#define EXT4_MB_HINT_BEST 0x0010
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#define EXT4_MB_HINT_DATA 0x0020
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#define EXT4_MB_HINT_NOPREALLOC 0x0040
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#define EXT4_MB_HINT_GROUP_ALLOC 0x0080
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#define EXT4_MB_HINT_GOAL_ONLY 0x0100
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#define EXT4_MB_HINT_TRY_GOAL 0x0200
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#define EXT4_MB_DELALLOC_RESERVED 0x0400
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#define EXT4_MB_STREAM_ALLOC 0x0800
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struct ext4_allocation_request {
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struct inode *inode;
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unsigned int len;
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ext4_lblk_t logical;
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ext4_lblk_t lleft;
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ext4_lblk_t lright;
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ext4_fsblk_t goal;
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ext4_fsblk_t pleft;
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ext4_fsblk_t pright;
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unsigned int flags;
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};
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#define EXT4_BAD_INO 1
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#define EXT4_ROOT_INO 2
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#define EXT4_BOOT_LOADER_INO 5
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#define EXT4_UNDEL_DIR_INO 6
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#define EXT4_RESIZE_INO 7
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#define EXT4_JOURNAL_INO 8
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#define EXT4_GOOD_OLD_FIRST_INO 11
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#define EXT4_LINK_MAX 65000
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#define EXT4_MIN_BLOCK_SIZE 1024
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#define EXT4_MAX_BLOCK_SIZE 65536
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#define EXT4_MIN_BLOCK_LOG_SIZE 10
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#define EXT4_BLOCK_SIZE(s) (EXT4_MIN_BLOCK_SIZE << (s)->s_log_block_size)
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#define EXT4_ADDR_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / sizeof(__u32))
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#define EXT4_BLOCK_SIZE_BITS(s) ((s)->s_log_block_size + 10)
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#define EXT4_INODE_SIZE(s) (((s)->s_rev_level == EXT4_GOOD_OLD_REV) ? EXT4_GOOD_OLD_INODE_SIZE : (s)->s_inode_size)
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#define EXT4_FIRST_INO(s) (((s)->s_rev_level == EXT4_GOOD_OLD_REV) ? EXT4_GOOD_OLD_FIRST_INO : (s)->s_first_ino)
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#define EXT4_BLOCK_ALIGN(size, blkbits) EXT4_ALIGN((size), (1 << (blkbits)))
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struct ext4_group_desc
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{
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__le32 bg_block_bitmap_lo;
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__le32 bg_inode_bitmap_lo;
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__le32 bg_inode_table_lo;
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__le16 bg_free_blocks_count_lo;
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__le16 bg_free_inodes_count_lo;
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__le16 bg_used_dirs_count_lo;
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__le16 bg_flags;
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__u32 bg_reserved[2];
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__le16 bg_itable_unused_lo;
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__le16 bg_checksum;
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__le32 bg_block_bitmap_hi;
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__le32 bg_inode_bitmap_hi;
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__le32 bg_inode_table_hi;
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__le16 bg_free_blocks_count_hi;
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__le16 bg_free_inodes_count_hi;
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__le16 bg_used_dirs_count_hi;
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__le16 bg_itable_unused_hi;
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__u32 bg_reserved2[3];
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};
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#define EXT4_BG_INODE_UNINIT 0x0001
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#define EXT4_BG_BLOCK_UNINIT 0x0002
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#define EXT4_BG_INODE_ZEROED 0x0004
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#define EXT4_MIN_DESC_SIZE 32
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#define EXT4_MIN_DESC_SIZE_64BIT 64
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#define EXT4_MAX_DESC_SIZE EXT4_MIN_BLOCK_SIZE
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#define EXT4_DESC_SIZE(s) (EXT4_SB(s)->s_desc_size)
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#define EXT4_BLOCKS_PER_GROUP(s) ((s)->s_blocks_per_group)
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#define EXT4_DESC_PER_BLOCK(s) (EXT4_BLOCK_SIZE(s) / EXT4_DESC_SIZE(s))
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#define EXT4_INODES_PER_GROUP(s) ((s)->s_inodes_per_group)
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#define EXT4_NDIR_BLOCKS 12
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#define EXT4_IND_BLOCK EXT4_NDIR_BLOCKS
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#define EXT4_DIND_BLOCK (EXT4_IND_BLOCK + 1)
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#define EXT4_TIND_BLOCK (EXT4_DIND_BLOCK + 1)
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#define EXT4_N_BLOCKS (EXT4_TIND_BLOCK + 1)
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#define EXT4_SECRM_FL 0x00000001
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#define EXT4_UNRM_FL 0x00000002
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#define EXT4_COMPR_FL 0x00000004
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#define EXT4_SYNC_FL 0x00000008
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#define EXT4_IMMUTABLE_FL 0x00000010
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#define EXT4_APPEND_FL 0x00000020
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#define EXT4_NODUMP_FL 0x00000040
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#define EXT4_NOATIME_FL 0x00000080
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#define EXT4_DIRTY_FL 0x00000100
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#define EXT4_COMPRBLK_FL 0x00000200
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#define EXT4_NOCOMPR_FL 0x00000400
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#define EXT4_ECOMPR_FL 0x00000800
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#define EXT4_INDEX_FL 0x00001000
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#define EXT4_IMAGIC_FL 0x00002000
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#define EXT4_JOURNAL_DATA_FL 0x00004000
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#define EXT4_NOTAIL_FL 0x00008000
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#define EXT4_DIRSYNC_FL 0x00010000
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#define EXT4_TOPDIR_FL 0x00020000
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#define EXT4_HUGE_FILE_FL 0x00040000
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#define EXT4_EXTENTS_FL 0x00080000
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#define EXT4_EA_INODE_FL 0x00200000
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#define EXT4_EOFBLOCKS_FL 0x00400000
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#define EXT4_RESERVED_FL 0x80000000
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#define EXT4_FL_USER_VISIBLE 0x004BDFFF
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#define EXT4_FL_USER_MODIFIABLE 0x004B80FF
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#define EXT4_FL_INHERITED (EXT4_SECRM_FL | EXT4_UNRM_FL | EXT4_COMPR_FL | EXT4_SYNC_FL | EXT4_IMMUTABLE_FL | EXT4_APPEND_FL | EXT4_NODUMP_FL | EXT4_NOATIME_FL | EXT4_NOCOMPR_FL | EXT4_JOURNAL_DATA_FL | EXT4_NOTAIL_FL | EXT4_DIRSYNC_FL)
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#define EXT4_REG_FLMASK (~(EXT4_DIRSYNC_FL | EXT4_TOPDIR_FL))
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#define EXT4_OTHER_FLMASK (EXT4_NODUMP_FL | EXT4_NOATIME_FL)
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struct ext4_new_group_data {
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__u32 group;
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__u64 block_bitmap;
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__u64 inode_bitmap;
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__u64 inode_table;
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__u32 blocks_count;
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__u16 reserved_blocks;
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__u16 unused;
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__u32 free_blocks_count;
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};
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#define EXT4_GET_BLOCKS_CREATE 0x0001
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#define EXT4_GET_BLOCKS_UNINIT_EXT 0x0002
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#define EXT4_GET_BLOCKS_CREATE_UNINIT_EXT (EXT4_GET_BLOCKS_UNINIT_EXT| EXT4_GET_BLOCKS_CREATE)
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#define EXT4_GET_BLOCKS_DELALLOC_RESERVE 0x0004
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#define EXT4_GET_BLOCKS_PRE_IO 0x0008
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#define EXT4_GET_BLOCKS_CONVERT 0x0010
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#define EXT4_GET_BLOCKS_IO_CREATE_EXT (EXT4_GET_BLOCKS_PRE_IO| EXT4_GET_BLOCKS_CREATE_UNINIT_EXT)
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#define EXT4_GET_BLOCKS_IO_CONVERT_EXT (EXT4_GET_BLOCKS_CONVERT| EXT4_GET_BLOCKS_CREATE_UNINIT_EXT)
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#define EXT4_FREE_BLOCKS_METADATA 0x0001
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#define EXT4_FREE_BLOCKS_FORGET 0x0002
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#define EXT4_FREE_BLOCKS_VALIDATED 0x0004
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#define EXT4_IOC_GETFLAGS FS_IOC_GETFLAGS
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#define EXT4_IOC_SETFLAGS FS_IOC_SETFLAGS
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#define EXT4_IOC_GETVERSION _IOR('f', 3, long)
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#define EXT4_IOC_SETVERSION _IOW('f', 4, long)
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#define EXT4_IOC_GETVERSION_OLD FS_IOC_GETVERSION
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#define EXT4_IOC_SETVERSION_OLD FS_IOC_SETVERSION
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#define EXT4_IOC_GETRSVSZ _IOR('f', 5, long)
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#define EXT4_IOC_SETRSVSZ _IOW('f', 6, long)
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#define EXT4_IOC_GROUP_EXTEND _IOW('f', 7, unsigned long)
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#define EXT4_IOC_GROUP_ADD _IOW('f', 8, struct ext4_new_group_input)
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#define EXT4_IOC_MIGRATE _IO('f', 9)
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#define EXT4_IOC_ALLOC_DA_BLKS _IO('f', 12)
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#define EXT4_IOC_MOVE_EXT _IOWR('f', 15, struct move_extent)
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#define EXT4_IOC32_GETFLAGS FS_IOC32_GETFLAGS
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#define EXT4_IOC32_SETFLAGS FS_IOC32_SETFLAGS
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#define EXT4_IOC32_GETVERSION _IOR('f', 3, int)
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#define EXT4_IOC32_SETVERSION _IOW('f', 4, int)
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#define EXT4_IOC32_GETRSVSZ _IOR('f', 5, int)
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#define EXT4_IOC32_SETRSVSZ _IOW('f', 6, int)
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#define EXT4_IOC32_GROUP_EXTEND _IOW('f', 7, unsigned int)
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#define EXT4_IOC32_GETVERSION_OLD FS_IOC32_GETVERSION
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#define EXT4_IOC32_SETVERSION_OLD FS_IOC32_SETVERSION
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#define EXT4_MAX_BLOCK_FILE_PHYS 0xFFFFFFFF
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struct ext4_inode {
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__le16 i_mode;
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__le16 i_uid;
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__le32 i_size_lo;
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__le32 i_atime;
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__le32 i_ctime;
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__le32 i_mtime;
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__le32 i_dtime;
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__le16 i_gid;
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__le16 i_links_count;
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__le32 i_blocks_lo;
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__le32 i_flags;
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union {
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struct {
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__le32 l_i_version;
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} linux1;
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struct {
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__u32 h_i_translator;
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} hurd1;
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struct {
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__u32 m_i_reserved1;
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} masix1;
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} osd1;
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__le32 i_block[EXT4_N_BLOCKS];
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__le32 i_generation;
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__le32 i_file_acl_lo;
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__le32 i_size_high;
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__le32 i_obso_faddr;
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union {
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struct {
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__le16 l_i_blocks_high;
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__le16 l_i_file_acl_high;
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__le16 l_i_uid_high;
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__le16 l_i_gid_high;
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__u32 l_i_reserved2;
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} linux2;
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struct {
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__le16 h_i_reserved1;
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__u16 h_i_mode_high;
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__u16 h_i_uid_high;
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__u16 h_i_gid_high;
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__u32 h_i_author;
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} hurd2;
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struct {
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__le16 h_i_reserved1;
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__le16 m_i_file_acl_high;
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__u32 m_i_reserved2[2];
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} masix2;
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} osd2;
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__le16 i_extra_isize;
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__le16 i_pad1;
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__le32 i_ctime_extra;
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__le32 i_mtime_extra;
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__le32 i_atime_extra;
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__le32 i_crtime;
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__le32 i_crtime_extra;
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__le32 i_version_hi;
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};
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struct move_extent {
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__u32 reserved;
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__u32 donor_fd;
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__u64 orig_start;
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__u64 donor_start;
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__u64 len;
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__u64 moved_len;
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};
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#define EXT4_EPOCH_BITS 2
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#define EXT4_EPOCH_MASK ((1 << EXT4_EPOCH_BITS) - 1)
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#define EXT4_NSEC_MASK (~0UL << EXT4_EPOCH_BITS)
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#define EXT4_FITS_IN_INODE(ext4_inode, einode, field) ((offsetof(typeof(*ext4_inode), field) + sizeof((ext4_inode)->field)) <= (EXT4_GOOD_OLD_INODE_SIZE + (einode)->i_extra_isize))
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#define EXT4_INODE_SET_XTIME(xtime, inode, raw_inode) do { (raw_inode)->xtime = cpu_to_le32((inode)->xtime.tv_sec); if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) (raw_inode)->xtime ## _extra = ext4_encode_extra_time(&(inode)->xtime); } while (0)
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#define EXT4_EINODE_SET_XTIME(xtime, einode, raw_inode) do { if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) (raw_inode)->xtime = cpu_to_le32((einode)->xtime.tv_sec); if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) (raw_inode)->xtime ## _extra = ext4_encode_extra_time(&(einode)->xtime); } while (0)
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#define EXT4_INODE_GET_XTIME(xtime, inode, raw_inode) do { (inode)->xtime.tv_sec = (signed)le32_to_cpu((raw_inode)->xtime); if (EXT4_FITS_IN_INODE(raw_inode, EXT4_I(inode), xtime ## _extra)) ext4_decode_extra_time(&(inode)->xtime, raw_inode->xtime ## _extra); } while (0)
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#define EXT4_EINODE_GET_XTIME(xtime, einode, raw_inode) do { if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime)) (einode)->xtime.tv_sec = (signed)le32_to_cpu((raw_inode)->xtime); if (EXT4_FITS_IN_INODE(raw_inode, einode, xtime ## _extra)) ext4_decode_extra_time(&(einode)->xtime, raw_inode->xtime ## _extra); } while (0)
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#define i_disk_version osd1.linux1.l_i_version
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#define i_reserved1 osd1.linux1.l_i_reserved1
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#define i_file_acl_high osd2.linux2.l_i_file_acl_high
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#define i_blocks_high osd2.linux2.l_i_blocks_high
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#define i_uid_low i_uid
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#define i_gid_low i_gid
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#define i_uid_high osd2.linux2.l_i_uid_high
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#define i_gid_high osd2.linux2.l_i_gid_high
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#define i_reserved2 osd2.linux2.l_i_reserved2
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#define EXT4_VALID_FS 0x0001
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#define EXT4_ERROR_FS 0x0002
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#define EXT4_ORPHAN_FS 0x0004
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#define EXT2_FLAGS_SIGNED_HASH 0x0001
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#define EXT2_FLAGS_UNSIGNED_HASH 0x0002
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#define EXT2_FLAGS_TEST_FILESYS 0x0004
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#define EXT4_MOUNT_OLDALLOC 0x00002
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#define EXT4_MOUNT_GRPID 0x00004
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#define EXT4_MOUNT_DEBUG 0x00008
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#define EXT4_MOUNT_ERRORS_CONT 0x00010
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#define EXT4_MOUNT_ERRORS_RO 0x00020
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#define EXT4_MOUNT_ERRORS_PANIC 0x00040
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#define EXT4_MOUNT_MINIX_DF 0x00080
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#define EXT4_MOUNT_NOLOAD 0x00100
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#define EXT4_MOUNT_DATA_FLAGS 0x00C00
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#define EXT4_MOUNT_JOURNAL_DATA 0x00400
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#define EXT4_MOUNT_ORDERED_DATA 0x00800
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#define EXT4_MOUNT_WRITEBACK_DATA 0x00C00
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#define EXT4_MOUNT_UPDATE_JOURNAL 0x01000
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#define EXT4_MOUNT_NO_UID32 0x02000
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#define EXT4_MOUNT_XATTR_USER 0x04000
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#define EXT4_MOUNT_POSIX_ACL 0x08000
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#define EXT4_MOUNT_NO_AUTO_DA_ALLOC 0x10000
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#define EXT4_MOUNT_BARRIER 0x20000
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#define EXT4_MOUNT_NOBH 0x40000
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#define EXT4_MOUNT_QUOTA 0x80000
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#define EXT4_MOUNT_USRQUOTA 0x100000
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#define EXT4_MOUNT_GRPQUOTA 0x200000
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#define EXT4_MOUNT_DIOREAD_NOLOCK 0x400000
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#define EXT4_MOUNT_JOURNAL_CHECKSUM 0x800000
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#define EXT4_MOUNT_JOURNAL_ASYNC_COMMIT 0x1000000
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#define EXT4_MOUNT_I_VERSION 0x2000000
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#define EXT4_MOUNT_DELALLOC 0x8000000
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#define EXT4_MOUNT_DATA_ERR_ABORT 0x10000000
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#define EXT4_MOUNT_BLOCK_VALIDITY 0x20000000
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#define EXT4_MOUNT_DISCARD 0x40000000
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#define clear_opt(o, opt) o &= ~EXT4_MOUNT_##opt
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#define set_opt(o, opt) o |= EXT4_MOUNT_##opt
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#define test_opt(sb, opt) (EXT4_SB(sb)->s_mount_opt & EXT4_MOUNT_##opt)
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#define ext4_set_bit ext2_set_bit
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#define ext4_set_bit_atomic ext2_set_bit_atomic
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#define ext4_clear_bit ext2_clear_bit
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#define ext4_clear_bit_atomic ext2_clear_bit_atomic
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#define ext4_test_bit ext2_test_bit
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#define ext4_find_first_zero_bit ext2_find_first_zero_bit
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#define ext4_find_next_zero_bit ext2_find_next_zero_bit
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#define ext4_find_next_bit ext2_find_next_bit
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#define EXT4_DFL_MAX_MNT_COUNT 20
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#define EXT4_DFL_CHECKINTERVAL 0
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#define EXT4_ERRORS_CONTINUE 1
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#define EXT4_ERRORS_RO 2
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#define EXT4_ERRORS_PANIC 3
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#define EXT4_ERRORS_DEFAULT EXT4_ERRORS_CONTINUE
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struct ext4_super_block {
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__le32 s_inodes_count;
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__le32 s_blocks_count_lo;
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__le32 s_r_blocks_count_lo;
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__le32 s_free_blocks_count_lo;
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__le32 s_free_inodes_count;
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__le32 s_first_data_block;
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__le32 s_log_block_size;
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__le32 s_obso_log_frag_size;
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__le32 s_blocks_per_group;
|
|
__le32 s_obso_frags_per_group;
|
|
__le32 s_inodes_per_group;
|
|
__le32 s_mtime;
|
|
__le32 s_wtime;
|
|
__le16 s_mnt_count;
|
|
__le16 s_max_mnt_count;
|
|
__le16 s_magic;
|
|
__le16 s_state;
|
|
__le16 s_errors;
|
|
__le16 s_minor_rev_level;
|
|
__le32 s_lastcheck;
|
|
__le32 s_checkinterval;
|
|
__le32 s_creator_os;
|
|
__le32 s_rev_level;
|
|
__le16 s_def_resuid;
|
|
__le16 s_def_resgid;
|
|
|
|
__le32 s_first_ino;
|
|
__le16 s_inode_size;
|
|
__le16 s_block_group_nr;
|
|
__le32 s_feature_compat;
|
|
__le32 s_feature_incompat;
|
|
__le32 s_feature_ro_compat;
|
|
__u8 s_uuid[16];
|
|
char s_volume_name[16];
|
|
char s_last_mounted[64];
|
|
__le32 s_algorithm_usage_bitmap;
|
|
|
|
__u8 s_prealloc_blocks;
|
|
__u8 s_prealloc_dir_blocks;
|
|
__le16 s_reserved_gdt_blocks;
|
|
|
|
__u8 s_journal_uuid[16];
|
|
__le32 s_journal_inum;
|
|
__le32 s_journal_dev;
|
|
__le32 s_last_orphan;
|
|
__le32 s_hash_seed[4];
|
|
__u8 s_def_hash_version;
|
|
__u8 s_reserved_char_pad;
|
|
__le16 s_desc_size;
|
|
__le32 s_default_mount_opts;
|
|
__le32 s_first_meta_bg;
|
|
__le32 s_mkfs_time;
|
|
__le32 s_jnl_blocks[17];
|
|
|
|
__le32 s_blocks_count_hi;
|
|
__le32 s_r_blocks_count_hi;
|
|
__le32 s_free_blocks_count_hi;
|
|
__le16 s_min_extra_isize;
|
|
__le16 s_want_extra_isize;
|
|
__le32 s_flags;
|
|
__le16 s_raid_stride;
|
|
__le16 s_mmp_interval;
|
|
__le64 s_mmp_block;
|
|
__le32 s_raid_stripe_width;
|
|
__u8 s_log_groups_per_flex;
|
|
__u8 s_reserved_char_pad2;
|
|
__le16 s_reserved_pad;
|
|
__le64 s_kbytes_written;
|
|
__u32 s_reserved[160];
|
|
};
|
|
|
|
#define EXT4_SB(sb) (sb)
|
|
|
|
#define NEXT_ORPHAN(inode) EXT4_I(inode)->i_dtime
|
|
|
|
#define EXT4_OS_LINUX 0
|
|
#define EXT4_OS_HURD 1
|
|
#define EXT4_OS_MASIX 2
|
|
#define EXT4_OS_FREEBSD 3
|
|
#define EXT4_OS_LITES 4
|
|
|
|
#define EXT4_GOOD_OLD_REV 0
|
|
#define EXT4_DYNAMIC_REV 1
|
|
|
|
#define EXT4_CURRENT_REV EXT4_GOOD_OLD_REV
|
|
#define EXT4_MAX_SUPP_REV EXT4_DYNAMIC_REV
|
|
|
|
#define EXT4_GOOD_OLD_INODE_SIZE 128
|
|
|
|
#define EXT4_HAS_COMPAT_FEATURE(sb,mask) ((EXT4_SB(sb)->s_es->s_feature_compat & cpu_to_le32(mask)) != 0)
|
|
#define EXT4_HAS_RO_COMPAT_FEATURE(sb,mask) ((EXT4_SB(sb)->s_es->s_feature_ro_compat & cpu_to_le32(mask)) != 0)
|
|
#define EXT4_HAS_INCOMPAT_FEATURE(sb,mask) ((EXT4_SB(sb)->s_es->s_feature_incompat & cpu_to_le32(mask)) != 0)
|
|
#define EXT4_SET_COMPAT_FEATURE(sb,mask) EXT4_SB(sb)->s_es->s_feature_compat |= cpu_to_le32(mask)
|
|
#define EXT4_SET_RO_COMPAT_FEATURE(sb,mask) EXT4_SB(sb)->s_es->s_feature_ro_compat |= cpu_to_le32(mask)
|
|
#define EXT4_SET_INCOMPAT_FEATURE(sb,mask) EXT4_SB(sb)->s_es->s_feature_incompat |= cpu_to_le32(mask)
|
|
#define EXT4_CLEAR_COMPAT_FEATURE(sb,mask) EXT4_SB(sb)->s_es->s_feature_compat &= ~cpu_to_le32(mask)
|
|
#define EXT4_CLEAR_RO_COMPAT_FEATURE(sb,mask) EXT4_SB(sb)->s_es->s_feature_ro_compat &= ~cpu_to_le32(mask)
|
|
#define EXT4_CLEAR_INCOMPAT_FEATURE(sb,mask) EXT4_SB(sb)->s_es->s_feature_incompat &= ~cpu_to_le32(mask)
|
|
|
|
#define EXT4_FEATURE_COMPAT_DIR_PREALLOC 0x0001
|
|
#define EXT4_FEATURE_COMPAT_IMAGIC_INODES 0x0002
|
|
#define EXT4_FEATURE_COMPAT_HAS_JOURNAL 0x0004
|
|
#define EXT4_FEATURE_COMPAT_EXT_ATTR 0x0008
|
|
#define EXT4_FEATURE_COMPAT_RESIZE_INODE 0x0010
|
|
#define EXT4_FEATURE_COMPAT_DIR_INDEX 0x0020
|
|
|
|
#define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
|
|
#define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
|
|
#define EXT4_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
|
|
#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008
|
|
#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
|
|
#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
|
|
#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040
|
|
|
|
#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
|
|
#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
|
|
#define EXT4_FEATURE_INCOMPAT_RECOVER 0x0004
|
|
#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008
|
|
#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010
|
|
#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040
|
|
#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080
|
|
#define EXT4_FEATURE_INCOMPAT_MMP 0x0100
|
|
#define EXT4_FEATURE_INCOMPAT_FLEX_BG 0x0200
|
|
#define EXT4_FEATURE_INCOMPAT_EA_INODE 0x0400
|
|
#define EXT4_FEATURE_INCOMPAT_DIRDATA 0x1000
|
|
|
|
#define EXT4_FEATURE_COMPAT_SUPP EXT2_FEATURE_COMPAT_EXT_ATTR
|
|
#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| EXT4_FEATURE_INCOMPAT_RECOVER| EXT4_FEATURE_INCOMPAT_META_BG| EXT4_FEATURE_INCOMPAT_EXTENTS| EXT4_FEATURE_INCOMPAT_64BIT| EXT4_FEATURE_INCOMPAT_FLEX_BG)
|
|
#define EXT4_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| EXT4_FEATURE_RO_COMPAT_LARGE_FILE| EXT4_FEATURE_RO_COMPAT_GDT_CSUM| EXT4_FEATURE_RO_COMPAT_DIR_NLINK | EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE | EXT4_FEATURE_RO_COMPAT_BTREE_DIR | EXT4_FEATURE_RO_COMPAT_HUGE_FILE)
|
|
|
|
#define EXT4_DEF_RESUID 0
|
|
#define EXT4_DEF_RESGID 0
|
|
|
|
#define EXT4_DEF_INODE_READAHEAD_BLKS 32
|
|
|
|
#define EXT4_DEFM_DEBUG 0x0001
|
|
#define EXT4_DEFM_BSDGROUPS 0x0002
|
|
#define EXT4_DEFM_XATTR_USER 0x0004
|
|
#define EXT4_DEFM_ACL 0x0008
|
|
#define EXT4_DEFM_UID16 0x0010
|
|
#define EXT4_DEFM_JMODE 0x0060
|
|
#define EXT4_DEFM_JMODE_DATA 0x0020
|
|
#define EXT4_DEFM_JMODE_ORDERED 0x0040
|
|
#define EXT4_DEFM_JMODE_WBACK 0x0060
|
|
|
|
#define EXT4_DEF_MIN_BATCH_TIME 0
|
|
#define EXT4_DEF_MAX_BATCH_TIME 15000
|
|
|
|
#define EXT4_FLEX_SIZE_DIR_ALLOC_SCHEME 4
|
|
|
|
#define EXT4_NAME_LEN 255
|
|
|
|
struct ext4_dir_entry {
|
|
__le32 inode;
|
|
__le16 rec_len;
|
|
__le16 name_len;
|
|
char name[EXT4_NAME_LEN];
|
|
};
|
|
|
|
struct ext4_dir_entry_2 {
|
|
__le32 inode;
|
|
__le16 rec_len;
|
|
__u8 name_len;
|
|
__u8 file_type;
|
|
char name[EXT4_NAME_LEN];
|
|
};
|
|
|
|
#define EXT4_FT_UNKNOWN 0
|
|
#define EXT4_FT_REG_FILE 1
|
|
#define EXT4_FT_DIR 2
|
|
#define EXT4_FT_CHRDEV 3
|
|
#define EXT4_FT_BLKDEV 4
|
|
#define EXT4_FT_FIFO 5
|
|
#define EXT4_FT_SOCK 6
|
|
#define EXT4_FT_SYMLINK 7
|
|
|
|
#define EXT4_FT_MAX 8
|
|
|
|
#define EXT4_DIR_PAD 4
|
|
#define EXT4_DIR_ROUND (EXT4_DIR_PAD - 1)
|
|
#define EXT4_DIR_REC_LEN(name_len) (((name_len) + 8 + EXT4_DIR_ROUND) & ~EXT4_DIR_ROUND)
|
|
#define EXT4_MAX_REC_LEN ((1<<16)-1)
|
|
|
|
#define is_dx(dir) (EXT4_HAS_COMPAT_FEATURE(dir->i_sb, EXT4_FEATURE_COMPAT_DIR_INDEX) && (EXT4_I(dir)->i_flags & EXT4_INDEX_FL))
|
|
#define EXT4_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT4_LINK_MAX)
|
|
#define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
|
|
|
|
#define DX_HASH_LEGACY 0
|
|
#define DX_HASH_HALF_MD4 1
|
|
#define DX_HASH_TEA 2
|
|
#define DX_HASH_LEGACY_UNSIGNED 3
|
|
#define DX_HASH_HALF_MD4_UNSIGNED 4
|
|
#define DX_HASH_TEA_UNSIGNED 5
|
|
|
|
#endif
|
|
|