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    Contents of /trunk/mkinitrd-magellan/klibc/usr/kinit/fstype/ocfs2_fs.h

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    Revision 815 - (show annotations) (download)
    Fri Apr 24 18:32:46 2009 UTC (15 years ago) by niro
    File MIME type: text/plain
    File size: 3284 byte(s) 
    -updated to klibc-1.5.15
    1 #ifndef _OCFS2_FS_H
    2 #define _OCFS2_FS_H
    3
    4 /* Object signatures */
    5 #define OCFS2_SUPER_BLOCK_SIGNATURE "OCFSV2"
    6
    7 #define OCFS2_VOL_UUID_LEN 16
    8 #define OCFS2_MAX_VOL_LABEL_LEN 64
    9
    10 /*
    11 * On disk superblock for OCFS2
    12 * Note that it is contained inside an ocfs2_dinode, so all offsets
    13 * are relative to the start of ocfs2_dinode.id2.
    14 */
    15 struct ocfs2_super_block {
    16 /*00*/ uint16_t s_major_rev_level;
    17 uint16_t s_minor_rev_level;
    18 uint16_t s_mnt_count;
    19 int16_t s_max_mnt_count;
    20 uint16_t s_state; /* File system state */
    21 uint16_t s_errors; /* Behaviour when detecting errors */
    22 uint32_t s_checkinterval; /* Max time between checks */
    23 /*10*/ uint64_t s_lastcheck; /* Time of last check */
    24 uint32_t s_creator_os; /* OS */
    25 uint32_t s_feature_compat; /* Compatible feature set */
    26 /*20*/ uint32_t s_feature_incompat; /* Incompatible feature set */
    27 uint32_t s_feature_ro_compat; /* Readonly-compatible feature set */
    28 uint64_t s_root_blkno; /* Offset, in blocks, of root directory
    29 dinode */
    30 /*30*/ uint64_t s_system_dir_blkno; /* Offset, in blocks, of system
    31 directory dinode */
    32 uint32_t s_blocksize_bits; /* Blocksize for this fs */
    33 uint32_t s_clustersize_bits; /* Clustersize for this fs */
    34 /*40*/ uint16_t s_max_slots; /* Max number of simultaneous mounts
    35 before tunefs required */
    36 uint16_t s_reserved1;
    37 uint32_t s_reserved2;
    38 uint64_t s_first_cluster_group; /* Block offset of 1st cluster
    39 * group header */
    40 /*50*/ uint8_t s_label[OCFS2_MAX_VOL_LABEL_LEN]; /* Label for mounting, etc. */
    41 /*90*/ uint8_t s_uuid[OCFS2_VOL_UUID_LEN]; /* 128-bit uuid */
    42 /*A0*/
    43 } __attribute__ ((packed));
    44
    45 /*
    46 * On disk inode for OCFS2
    47 */
    48 struct ocfs2_dinode {
    49 /*00*/ uint8_t i_signature[8]; /* Signature for validation */
    50 uint32_t i_generation; /* Generation number */
    51 uint16_t i_suballoc_slot; /* Slot suballocator this inode
    52 belongs to */
    53 int16_t i_suballoc_bit; /* Bit offset in suballocator
    54 block group */
    55 /*10*/ uint32_t i_reserved0;
    56 uint32_t i_clusters; /* Cluster count */
    57 uint32_t i_uid; /* Owner UID */
    58 uint32_t i_gid; /* Owning GID */
    59 /*20*/ uint64_t i_size; /* Size in bytes */
    60 uint16_t i_mode; /* File mode */
    61 uint16_t i_links_count; /* Links count */
    62 uint32_t i_flags; /* File flags */
    63 /*30*/ uint64_t i_atime; /* Access time */
    64 uint64_t i_ctime; /* Creation time */
    65 /*40*/ uint64_t i_mtime; /* Modification time */
    66 uint64_t i_dtime; /* Deletion time */
    67 /*50*/ uint64_t i_blkno; /* Offset on disk, in blocks */
    68 uint64_t i_last_eb_blk; /* Pointer to last extent
    69 block */
    70 /*60*/ uint32_t i_fs_generation; /* Generation per fs-instance */
    71 uint32_t i_atime_nsec;
    72 uint32_t i_ctime_nsec;
    73 uint32_t i_mtime_nsec;
    74 uint32_t i_attr;
    75 uint16_t i_orphaned_slot; /* Only valid when OCFS2_ORPHANED_FL
    76 was set in i_flags */
    77 uint16_t i_reserved1;
    78 /*70*/ uint64_t i_reserved2[8];
    79 /*B8*/ uint64_t i_pad1;
    80 uint64_t i_rdev; /* Device number */
    81 uint32_t i_used; /* Bits (ie, clusters) used */
    82 uint32_t i_total; /* Total bits (clusters)
    83 available */
    84 uint32_t ij_flags; /* Mounted, version, etc. */
    85 uint32_t ij_pad;
    86 /*C0*/ struct ocfs2_super_block i_super;
    87 /* Actual on-disk size is one block */
    88 } __attribute__ ((packed));
    89
    90 #endif /* _OCFS2_FS_H */