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-rw-r--r--include/linux/gfs2_ondisk.h464
1 files changed, 0 insertions, 464 deletions
diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h
deleted file mode 100644
index b2de1f9..0000000
--- a/include/linux/gfs2_ondisk.h
+++ /dev/null
@@ -1,464 +0,0 @@
-/*
- * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
- * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
- *
- * This copyrighted material is made available to anyone wishing to use,
- * modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
- */
-
-#ifndef __GFS2_ONDISK_DOT_H__
-#define __GFS2_ONDISK_DOT_H__
-
-#include <linux/types.h>
-
-#define GFS2_MAGIC 0x01161970
-#define GFS2_BASIC_BLOCK 512
-#define GFS2_BASIC_BLOCK_SHIFT 9
-
-/* Lock numbers of the LM_TYPE_NONDISK type */
-
-#define GFS2_MOUNT_LOCK 0
-#define GFS2_LIVE_LOCK 1
-#define GFS2_TRANS_LOCK 2
-#define GFS2_RENAME_LOCK 3
-#define GFS2_CONTROL_LOCK 4
-#define GFS2_MOUNTED_LOCK 5
-
-/* Format numbers for various metadata types */
-
-#define GFS2_FORMAT_NONE 0
-#define GFS2_FORMAT_SB 100
-#define GFS2_FORMAT_RG 200
-#define GFS2_FORMAT_RB 300
-#define GFS2_FORMAT_DI 400
-#define GFS2_FORMAT_IN 500
-#define GFS2_FORMAT_LF 600
-#define GFS2_FORMAT_JD 700
-#define GFS2_FORMAT_LH 800
-#define GFS2_FORMAT_LD 900
-#define GFS2_FORMAT_LB 1000
-#define GFS2_FORMAT_EA 1600
-#define GFS2_FORMAT_ED 1700
-#define GFS2_FORMAT_QC 1400
-/* These are format numbers for entities contained in files */
-#define GFS2_FORMAT_RI 1100
-#define GFS2_FORMAT_DE 1200
-#define GFS2_FORMAT_QU 1500
-/* These are part of the superblock */
-#define GFS2_FORMAT_FS 1801
-#define GFS2_FORMAT_MULTI 1900
-
-/*
- * An on-disk inode number
- */
-
-struct gfs2_inum {
- __be64 no_formal_ino;
- __be64 no_addr;
-};
-
-/*
- * Generic metadata head structure
- * Every inplace buffer logged in the journal must start with this.
- */
-
-#define GFS2_METATYPE_NONE 0
-#define GFS2_METATYPE_SB 1
-#define GFS2_METATYPE_RG 2
-#define GFS2_METATYPE_RB 3
-#define GFS2_METATYPE_DI 4
-#define GFS2_METATYPE_IN 5
-#define GFS2_METATYPE_LF 6
-#define GFS2_METATYPE_JD 7
-#define GFS2_METATYPE_LH 8
-#define GFS2_METATYPE_LD 9
-#define GFS2_METATYPE_LB 12
-#define GFS2_METATYPE_EA 10
-#define GFS2_METATYPE_ED 11
-#define GFS2_METATYPE_QC 14
-
-struct gfs2_meta_header {
- __be32 mh_magic;
- __be32 mh_type;
- __be64 __pad0; /* Was generation number in gfs1 */
- __be32 mh_format;
- /* This union is to keep userspace happy */
- union {
- __be32 mh_jid; /* Was incarnation number in gfs1 */
- __be32 __pad1;
- };
-};
-
-/*
- * super-block structure
- *
- * It's probably good if SIZEOF_SB <= GFS2_BASIC_BLOCK (512 bytes)
- *
- * Order is important, need to be able to read old superblocks to do on-disk
- * version upgrades.
- */
-
-/* Address of superblock in GFS2 basic blocks */
-#define GFS2_SB_ADDR 128
-
-/* The lock number for the superblock (must be zero) */
-#define GFS2_SB_LOCK 0
-
-/* Requirement: GFS2_LOCKNAME_LEN % 8 == 0
- Includes: the fencing zero at the end */
-#define GFS2_LOCKNAME_LEN 64
-
-struct gfs2_sb {
- struct gfs2_meta_header sb_header;
-
- __be32 sb_fs_format;
- __be32 sb_multihost_format;
- __u32 __pad0; /* Was superblock flags in gfs1 */
-
- __be32 sb_bsize;
- __be32 sb_bsize_shift;
- __u32 __pad1; /* Was journal segment size in gfs1 */
-
- struct gfs2_inum sb_master_dir; /* Was jindex dinode in gfs1 */
- struct gfs2_inum __pad2; /* Was rindex dinode in gfs1 */
- struct gfs2_inum sb_root_dir;
-
- char sb_lockproto[GFS2_LOCKNAME_LEN];
- char sb_locktable[GFS2_LOCKNAME_LEN];
-
- struct gfs2_inum __pad3; /* Was quota inode in gfs1 */
- struct gfs2_inum __pad4; /* Was licence inode in gfs1 */
-#define GFS2_HAS_UUID 1
- __u8 sb_uuid[16]; /* The UUID, maybe 0 for backwards compat */
-};
-
-/*
- * resource index structure
- */
-
-struct gfs2_rindex {
- __be64 ri_addr; /* grp block disk address */
- __be32 ri_length; /* length of rgrp header in fs blocks */
- __u32 __pad;
-
- __be64 ri_data0; /* first data location */
- __be32 ri_data; /* num of data blocks in rgrp */
-
- __be32 ri_bitbytes; /* number of bytes in data bitmaps */
-
- __u8 ri_reserved[64];
-};
-
-/*
- * resource group header structure
- */
-
-/* Number of blocks per byte in rgrp */
-#define GFS2_NBBY 4
-#define GFS2_BIT_SIZE 2
-#define GFS2_BIT_MASK 0x00000003
-
-#define GFS2_BLKST_FREE 0
-#define GFS2_BLKST_USED 1
-#define GFS2_BLKST_UNLINKED 2
-#define GFS2_BLKST_DINODE 3
-
-#define GFS2_RGF_JOURNAL 0x00000001
-#define GFS2_RGF_METAONLY 0x00000002
-#define GFS2_RGF_DATAONLY 0x00000004
-#define GFS2_RGF_NOALLOC 0x00000008
-#define GFS2_RGF_TRIMMED 0x00000010
-
-struct gfs2_rgrp_lvb {
- __be32 rl_magic;
- __be32 rl_flags;
- __be32 rl_free;
- __be32 rl_dinodes;
- __be64 rl_igeneration;
- __be32 rl_unlinked;
- __be32 __pad;
-};
-
-struct gfs2_rgrp {
- struct gfs2_meta_header rg_header;
-
- __be32 rg_flags;
- __be32 rg_free;
- __be32 rg_dinodes;
- __be32 __pad;
- __be64 rg_igeneration;
-
- __u8 rg_reserved[80]; /* Several fields from gfs1 now reserved */
-};
-
-/*
- * quota structure
- */
-
-struct gfs2_quota {
- __be64 qu_limit;
- __be64 qu_warn;
- __be64 qu_value;
- __u8 qu_reserved[64];
-};
-
-/*
- * dinode structure
- */
-
-#define GFS2_MAX_META_HEIGHT 10
-#define GFS2_DIR_MAX_DEPTH 17
-
-#define DT2IF(dt) (((dt) << 12) & S_IFMT)
-#define IF2DT(sif) (((sif) & S_IFMT) >> 12)
-
-enum {
- gfs2fl_Jdata = 0,
- gfs2fl_ExHash = 1,
- gfs2fl_Unused = 2,
- gfs2fl_EaIndirect = 3,
- gfs2fl_Directio = 4,
- gfs2fl_Immutable = 5,
- gfs2fl_AppendOnly = 6,
- gfs2fl_NoAtime = 7,
- gfs2fl_Sync = 8,
- gfs2fl_System = 9,
- gfs2fl_TopLevel = 10,
- gfs2fl_TruncInProg = 29,
- gfs2fl_InheritDirectio = 30,
- gfs2fl_InheritJdata = 31,
-};
-
-/* Dinode flags */
-#define GFS2_DIF_JDATA 0x00000001
-#define GFS2_DIF_EXHASH 0x00000002
-#define GFS2_DIF_UNUSED 0x00000004 /* only in gfs1 */
-#define GFS2_DIF_EA_INDIRECT 0x00000008
-#define GFS2_DIF_DIRECTIO 0x00000010
-#define GFS2_DIF_IMMUTABLE 0x00000020
-#define GFS2_DIF_APPENDONLY 0x00000040
-#define GFS2_DIF_NOATIME 0x00000080
-#define GFS2_DIF_SYNC 0x00000100
-#define GFS2_DIF_SYSTEM 0x00000200 /* New in gfs2 */
-#define GFS2_DIF_TOPDIR 0x00000400 /* New in gfs2 */
-#define GFS2_DIF_TRUNC_IN_PROG 0x20000000 /* New in gfs2 */
-#define GFS2_DIF_INHERIT_DIRECTIO 0x40000000 /* only in gfs1 */
-#define GFS2_DIF_INHERIT_JDATA 0x80000000
-
-struct gfs2_dinode {
- struct gfs2_meta_header di_header;
-
- struct gfs2_inum di_num;
-
- __be32 di_mode; /* mode of file */
- __be32 di_uid; /* owner's user id */
- __be32 di_gid; /* owner's group id */
- __be32 di_nlink; /* number of links to this file */
- __be64 di_size; /* number of bytes in file */
- __be64 di_blocks; /* number of blocks in file */
- __be64 di_atime; /* time last accessed */
- __be64 di_mtime; /* time last modified */
- __be64 di_ctime; /* time last changed */
- __be32 di_major; /* device major number */
- __be32 di_minor; /* device minor number */
-
- /* This section varies from gfs1. Padding added to align with
- * remainder of dinode
- */
- __be64 di_goal_meta; /* rgrp to alloc from next */
- __be64 di_goal_data; /* data block goal */
- __be64 di_generation; /* generation number for NFS */
-
- __be32 di_flags; /* GFS2_DIF_... */
- __be32 di_payload_format; /* GFS2_FORMAT_... */
- __u16 __pad1; /* Was ditype in gfs1 */
- __be16 di_height; /* height of metadata */
- __u32 __pad2; /* Unused incarnation number from gfs1 */
-
- /* These only apply to directories */
- __u16 __pad3; /* Padding */
- __be16 di_depth; /* Number of bits in the table */
- __be32 di_entries; /* The number of entries in the directory */
-
- struct gfs2_inum __pad4; /* Unused even in current gfs1 */
-
- __be64 di_eattr; /* extended attribute block number */
- __be32 di_atime_nsec; /* nsec portion of atime */
- __be32 di_mtime_nsec; /* nsec portion of mtime */
- __be32 di_ctime_nsec; /* nsec portion of ctime */
-
- __u8 di_reserved[44];
-};
-
-/*
- * directory structure - many of these per directory file
- */
-
-#define GFS2_FNAMESIZE 255
-#define GFS2_DIRENT_SIZE(name_len) ((sizeof(struct gfs2_dirent) + (name_len) + 7) & ~7)
-
-struct gfs2_dirent {
- struct gfs2_inum de_inum;
- __be32 de_hash;
- __be16 de_rec_len;
- __be16 de_name_len;
- __be16 de_type;
- __u8 __pad[14];
-};
-
-/*
- * Header of leaf directory nodes
- */
-
-struct gfs2_leaf {
- struct gfs2_meta_header lf_header;
-
- __be16 lf_depth; /* Depth of leaf */
- __be16 lf_entries; /* Number of dirents in leaf */
- __be32 lf_dirent_format; /* Format of the dirents */
- __be64 lf_next; /* Next leaf, if overflow */
-
- __u8 lf_reserved[64];
-};
-
-/*
- * Extended attribute header format
- *
- * This works in a similar way to dirents. There is a fixed size header
- * followed by a variable length section made up of the name and the
- * associated data. In the case of a "stuffed" entry, the value is
- * inline directly after the name, the ea_num_ptrs entry will be
- * zero in that case. For non-"stuffed" entries, there will be
- * a set of pointers (aligned to 8 byte boundary) to the block(s)
- * containing the value.
- *
- * The blocks containing the values and the blocks containing the
- * extended attribute headers themselves all start with the common
- * metadata header. Each inode, if it has extended attributes, will
- * have either a single block containing the extended attribute headers
- * or a single indirect block pointing to blocks containing the
- * extended attribure headers.
- *
- * The maximim size of the data part of an extended attribute is 64k
- * so the number of blocks required depends upon block size. Since the
- * block size also determines the number of pointers in an indirect
- * block, its a fairly complicated calculation to work out the maximum
- * number of blocks that an inode may have relating to extended attributes.
- *
- */
-
-#define GFS2_EA_MAX_NAME_LEN 255
-#define GFS2_EA_MAX_DATA_LEN 65536
-
-#define GFS2_EATYPE_UNUSED 0
-#define GFS2_EATYPE_USR 1
-#define GFS2_EATYPE_SYS 2
-#define GFS2_EATYPE_SECURITY 3
-
-#define GFS2_EATYPE_LAST 3
-#define GFS2_EATYPE_VALID(x) ((x) <= GFS2_EATYPE_LAST)
-
-#define GFS2_EAFLAG_LAST 0x01 /* last ea in block */
-
-struct gfs2_ea_header {
- __be32 ea_rec_len;
- __be32 ea_data_len;
- __u8 ea_name_len; /* no NULL pointer after the string */
- __u8 ea_type; /* GFS2_EATYPE_... */
- __u8 ea_flags; /* GFS2_EAFLAG_... */
- __u8 ea_num_ptrs;
- __u32 __pad;
-};
-
-/*
- * Log header structure
- */
-
-#define GFS2_LOG_HEAD_UNMOUNT 0x00000001 /* log is clean */
-
-struct gfs2_log_header {
- struct gfs2_meta_header lh_header;
-
- __be64 lh_sequence; /* Sequence number of this transaction */
- __be32 lh_flags; /* GFS2_LOG_HEAD_... */
- __be32 lh_tail; /* Block number of log tail */
- __be32 lh_blkno;
- __be32 lh_hash;
-};
-
-/*
- * Log type descriptor
- */
-
-#define GFS2_LOG_DESC_METADATA 300
-/* ld_data1 is the number of metadata blocks in the descriptor.
- ld_data2 is unused. */
-
-#define GFS2_LOG_DESC_REVOKE 301
-/* ld_data1 is the number of revoke blocks in the descriptor.
- ld_data2 is unused. */
-
-#define GFS2_LOG_DESC_JDATA 302
-/* ld_data1 is the number of data blocks in the descriptor.
- ld_data2 is unused. */
-
-struct gfs2_log_descriptor {
- struct gfs2_meta_header ld_header;
-
- __be32 ld_type; /* GFS2_LOG_DESC_... */
- __be32 ld_length; /* Number of buffers in this chunk */
- __be32 ld_data1; /* descriptor-specific field */
- __be32 ld_data2; /* descriptor-specific field */
-
- __u8 ld_reserved[32];
-};
-
-/*
- * Inum Range
- * Describe a range of formal inode numbers allocated to
- * one machine to assign to inodes.
- */
-
-#define GFS2_INUM_QUANTUM 1048576
-
-struct gfs2_inum_range {
- __be64 ir_start;
- __be64 ir_length;
-};
-
-/*
- * Statfs change
- * Describes an change to the pool of free and allocated
- * blocks.
- */
-
-struct gfs2_statfs_change {
- __be64 sc_total;
- __be64 sc_free;
- __be64 sc_dinodes;
-};
-
-/*
- * Quota change
- * Describes an allocation change for a particular
- * user or group.
- */
-
-#define GFS2_QCF_USER 0x00000001
-
-struct gfs2_quota_change {
- __be64 qc_change;
- __be32 qc_flags; /* GFS2_QCF_... */
- __be32 qc_id;
-};
-
-struct gfs2_quota_lvb {
- __be32 qb_magic;
- __u32 __pad;
- __be64 qb_limit; /* Hard limit of # blocks to alloc */
- __be64 qb_warn; /* Warn user when alloc is above this # */
- __be64 qb_value; /* Current # blocks allocated */
-};
-
-#endif /* __GFS2_ONDISK_DOT_H__ */
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