fs/ocfs2/ocfs2_fs.h

623 struct ocfs2_super_block {  struct
624 /*00*/	__le16 s_major_rev_level;
625 	__le16 s_minor_rev_level;
626 	__le16 s_mnt_count;
627 	__le16 s_max_mnt_count;
628 	__le16 s_state;			/* File system state */
629 	__le16 s_errors;			/* Behaviour when detecting errors */
630 	__le32 s_checkinterval;		/* Max time between checks */
631 /*10*/	__le64 s_lastcheck;		/* Time of last check */
632 	__le32 s_creator_os;		/* OS */
633 	__le32 s_feature_compat;		/* Compatible feature set */
634 /*20*/	__le32 s_feature_incompat;	/* Incompatible feature set */
635 	__le32 s_feature_ro_compat;	/* Readonly-compatible feature set */
636 	__le64 s_root_blkno;		/* Offset, in blocks, of root directory
638 /*30*/	__le64 s_system_dir_blkno;	/* Offset, in blocks, of system
640 	__le32 s_blocksize_bits;		/* Blocksize for this fs */
641 	__le32 s_clustersize_bits;	/* Clustersize for this fs */
642 /*40*/	__le16 s_max_slots;		/* Max number of simultaneous mounts
644 	__le16 s_tunefs_flag;
645 	__le32 s_uuid_hash;		/* hash value of uuid */
646 	__le64 s_first_cluster_group;	/* Block offset of 1st cluster
648 /*50*/	__u8  s_label[OCFS2_MAX_VOL_LABEL_LEN];	/* Label for mounting, etc. */
649 /*90*/	__u8  s_uuid[OCFS2_VOL_UUID_LEN];	/* 128-bit uuid */
650 /*A0*/  struct ocfs2_cluster_info s_cluster_info; /* Only valid if either
653 /*B8*/	__le16 s_xattr_inline_size;	/* extended attribute inline size
655 	__le16 s_reserved0;
656 	__le32 s_dx_seed[3];		/* seed[0-2] for dx dir hash.
658 /*C0*/  __le64 s_reserved2[15];		/* Fill out superblock */