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[PATCH 42/60] xfs: split out on-disk transaction definitions

To: xfs@xxxxxxxxxxx
Subject: [PATCH 42/60] xfs: split out on-disk transaction definitions
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Wed, 19 Jun 2013 14:50:50 +1000
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1371617468-32559-1-git-send-email-david@xxxxxxxxxxxxx>
References: <1371617468-32559-1-git-send-email-david@xxxxxxxxxxxxx>
From: Dave Chinner <dchinner@xxxxxxxxxx>

There's a bunch of definitions in xfs_trans.h that define on-disk
formats - transaction headers taht get written into the log, log
item type definitions, etc. Split out everything into a separate
file so that all which remains in xfs_trans.h are kernel only
definitions.

Also, remove the duplicate magic number definitions for
XFS_TRANS_HEADER_MAGIC...

Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
 fs/xfs/xfs_trans.c        |    4 +-
 fs/xfs/xfs_trans.h        |  217 +---------------------------------------
 fs/xfs/xfs_trans_format.h |  240 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 243 insertions(+), 218 deletions(-)
 create mode 100644 fs/xfs/xfs_trans_format.h

diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index ed24650..0228f74 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -92,7 +92,7 @@ _xfs_trans_alloc(
        atomic_inc(&mp->m_active_trans);
 
        tp = kmem_zone_zalloc(xfs_trans_zone, memflags);
-       tp->t_magic = XFS_TRANS_MAGIC;
+       tp->t_magic = XFS_TRANS_HEADER_MAGIC;
        tp->t_type = type;
        tp->t_mountp = mp;
        INIT_LIST_HEAD(&tp->t_items);
@@ -137,7 +137,7 @@ xfs_trans_dup(
        /*
         * Initialize the new transaction structure.
         */
-       ntp->t_magic = XFS_TRANS_MAGIC;
+       ntp->t_magic = XFS_TRANS_HEADER_MAGIC;
        ntp->t_type = tp->t_type;
        ntp->t_mountp = tp->t_mountp;
        INIT_LIST_HEAD(&ntp->t_items);
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 4654b58..21c3e07 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -21,220 +21,7 @@
 struct xfs_log_item;
 
 #include "xfs_trans_resv.h"
-
-/*
- * This is the structure written in the log at the head of
- * every transaction. It identifies the type and id of the
- * transaction, and contains the number of items logged by
- * the transaction so we know how many to expect during recovery.
- *
- * Do not change the below structure without redoing the code in
- * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans().
- */
-typedef struct xfs_trans_header {
-       uint            th_magic;               /* magic number */
-       uint            th_type;                /* transaction type */
-       __int32_t       th_tid;                 /* transaction id (unused) */
-       uint            th_num_items;           /* num items logged by trans */
-} xfs_trans_header_t;
-
-#define        XFS_TRANS_HEADER_MAGIC  0x5452414e      /* TRAN */
-
-/*
- * Log item types.
- */
-#define        XFS_LI_EFI              0x1236
-#define        XFS_LI_EFD              0x1237
-#define        XFS_LI_IUNLINK          0x1238
-#define        XFS_LI_INODE            0x123b  /* aligned ino chunks, var-size 
ibufs */
-#define        XFS_LI_BUF              0x123c  /* v2 bufs, variable sized 
inode bufs */
-#define        XFS_LI_DQUOT            0x123d
-#define        XFS_LI_QUOTAOFF         0x123e
-#define        XFS_LI_ICREATE          0x123f
-
-#define XFS_LI_TYPE_DESC \
-       { XFS_LI_EFI,           "XFS_LI_EFI" }, \
-       { XFS_LI_EFD,           "XFS_LI_EFD" }, \
-       { XFS_LI_IUNLINK,       "XFS_LI_IUNLINK" }, \
-       { XFS_LI_INODE,         "XFS_LI_INODE" }, \
-       { XFS_LI_BUF,           "XFS_LI_BUF" }, \
-       { XFS_LI_DQUOT,         "XFS_LI_DQUOT" }, \
-       { XFS_LI_QUOTAOFF,      "XFS_LI_QUOTAOFF" }, \
-       { XFS_LI_ICREATE,       "XFS_LI_ICREATE" }
-
-/*
- * Transaction types.  Used to distinguish types of buffers.
- */
-#define XFS_TRANS_SETATTR_NOT_SIZE     1
-#define XFS_TRANS_SETATTR_SIZE         2
-#define XFS_TRANS_INACTIVE             3
-#define XFS_TRANS_CREATE               4
-#define XFS_TRANS_CREATE_TRUNC         5
-#define XFS_TRANS_TRUNCATE_FILE                6
-#define XFS_TRANS_REMOVE               7
-#define XFS_TRANS_LINK                 8
-#define XFS_TRANS_RENAME               9
-#define XFS_TRANS_MKDIR                        10
-#define XFS_TRANS_RMDIR                        11
-#define XFS_TRANS_SYMLINK              12
-#define XFS_TRANS_SET_DMATTRS          13
-#define XFS_TRANS_GROWFS               14
-#define XFS_TRANS_STRAT_WRITE          15
-#define XFS_TRANS_DIOSTRAT             16
-/* 17 was XFS_TRANS_WRITE_SYNC */
-#define        XFS_TRANS_WRITEID               18
-#define        XFS_TRANS_ADDAFORK              19
-#define        XFS_TRANS_ATTRINVAL             20
-#define        XFS_TRANS_ATRUNCATE             21
-#define        XFS_TRANS_ATTR_SET              22
-#define        XFS_TRANS_ATTR_RM               23
-#define        XFS_TRANS_ATTR_FLAG             24
-#define        XFS_TRANS_CLEAR_AGI_BUCKET      25
-#define XFS_TRANS_QM_SBCHANGE          26
-/*
- * Dummy entries since we use the transaction type to index into the
- * trans_type[] in xlog_recover_print_trans_head()
- */
-#define XFS_TRANS_DUMMY1               27
-#define XFS_TRANS_DUMMY2               28
-#define XFS_TRANS_QM_QUOTAOFF          29
-#define XFS_TRANS_QM_DQALLOC           30
-#define XFS_TRANS_QM_SETQLIM           31
-#define XFS_TRANS_QM_DQCLUSTER         32
-#define XFS_TRANS_QM_QINOCREATE                33
-#define XFS_TRANS_QM_QUOTAOFF_END      34
-#define XFS_TRANS_SB_UNIT              35
-#define XFS_TRANS_FSYNC_TS             36
-#define        XFS_TRANS_GROWFSRT_ALLOC        37
-#define        XFS_TRANS_GROWFSRT_ZERO         38
-#define        XFS_TRANS_GROWFSRT_FREE         39
-#define        XFS_TRANS_SWAPEXT               40
-#define        XFS_TRANS_SB_COUNT              41
-#define        XFS_TRANS_CHECKPOINT            42
-#define        XFS_TRANS_ICREATE               43
-#define        XFS_TRANS_TYPE_MAX              43
-/* new transaction types need to be reflected in xfs_logprint(8) */
-
-#define XFS_TRANS_TYPES \
-       { XFS_TRANS_SETATTR_NOT_SIZE,   "SETATTR_NOT_SIZE" }, \
-       { XFS_TRANS_SETATTR_SIZE,       "SETATTR_SIZE" }, \
-       { XFS_TRANS_INACTIVE,           "INACTIVE" }, \
-       { XFS_TRANS_CREATE,             "CREATE" }, \
-       { XFS_TRANS_CREATE_TRUNC,       "CREATE_TRUNC" }, \
-       { XFS_TRANS_TRUNCATE_FILE,      "TRUNCATE_FILE" }, \
-       { XFS_TRANS_REMOVE,             "REMOVE" }, \
-       { XFS_TRANS_LINK,               "LINK" }, \
-       { XFS_TRANS_RENAME,             "RENAME" }, \
-       { XFS_TRANS_MKDIR,              "MKDIR" }, \
-       { XFS_TRANS_RMDIR,              "RMDIR" }, \
-       { XFS_TRANS_SYMLINK,            "SYMLINK" }, \
-       { XFS_TRANS_SET_DMATTRS,        "SET_DMATTRS" }, \
-       { XFS_TRANS_GROWFS,             "GROWFS" }, \
-       { XFS_TRANS_STRAT_WRITE,        "STRAT_WRITE" }, \
-       { XFS_TRANS_DIOSTRAT,           "DIOSTRAT" }, \
-       { XFS_TRANS_WRITEID,            "WRITEID" }, \
-       { XFS_TRANS_ADDAFORK,           "ADDAFORK" }, \
-       { XFS_TRANS_ATTRINVAL,          "ATTRINVAL" }, \
-       { XFS_TRANS_ATRUNCATE,          "ATRUNCATE" }, \
-       { XFS_TRANS_ATTR_SET,           "ATTR_SET" }, \
-       { XFS_TRANS_ATTR_RM,            "ATTR_RM" }, \
-       { XFS_TRANS_ATTR_FLAG,          "ATTR_FLAG" }, \
-       { XFS_TRANS_CLEAR_AGI_BUCKET,   "CLEAR_AGI_BUCKET" }, \
-       { XFS_TRANS_QM_SBCHANGE,        "QM_SBCHANGE" }, \
-       { XFS_TRANS_QM_QUOTAOFF,        "QM_QUOTAOFF" }, \
-       { XFS_TRANS_QM_DQALLOC,         "QM_DQALLOC" }, \
-       { XFS_TRANS_QM_SETQLIM,         "QM_SETQLIM" }, \
-       { XFS_TRANS_QM_DQCLUSTER,       "QM_DQCLUSTER" }, \
-       { XFS_TRANS_QM_QINOCREATE,      "QM_QINOCREATE" }, \
-       { XFS_TRANS_QM_QUOTAOFF_END,    "QM_QOFF_END" }, \
-       { XFS_TRANS_SB_UNIT,            "SB_UNIT" }, \
-       { XFS_TRANS_FSYNC_TS,           "FSYNC_TS" }, \
-       { XFS_TRANS_GROWFSRT_ALLOC,     "GROWFSRT_ALLOC" }, \
-       { XFS_TRANS_GROWFSRT_ZERO,      "GROWFSRT_ZERO" }, \
-       { XFS_TRANS_GROWFSRT_FREE,      "GROWFSRT_FREE" }, \
-       { XFS_TRANS_SWAPEXT,            "SWAPEXT" }, \
-       { XFS_TRANS_SB_COUNT,           "SB_COUNT" }, \
-       { XFS_TRANS_CHECKPOINT,         "CHECKPOINT" }, \
-       { XFS_TRANS_DUMMY1,             "DUMMY1" }, \
-       { XFS_TRANS_DUMMY2,             "DUMMY2" }, \
-       { XLOG_UNMOUNT_REC_TYPE,        "UNMOUNT" }
-
-/*
- * This structure is used to track log items associated with
- * a transaction.  It points to the log item and keeps some
- * flags to track the state of the log item.  It also tracks
- * the amount of space needed to log the item it describes
- * once we get to commit processing (see xfs_trans_commit()).
- */
-struct xfs_log_item_desc {
-       struct xfs_log_item     *lid_item;
-       struct list_head        lid_trans;
-       unsigned char           lid_flags;
-};
-
-#define XFS_LID_DIRTY          0x1
-
-#define        XFS_TRANS_MAGIC         0x5452414E      /* 'TRAN' */
-/*
- * Values for t_flags.
- */
-#define        XFS_TRANS_DIRTY         0x01    /* something needs to be logged 
*/
-#define        XFS_TRANS_SB_DIRTY      0x02    /* superblock is modified */
-#define        XFS_TRANS_PERM_LOG_RES  0x04    /* xact took a permanent log 
res */
-#define        XFS_TRANS_SYNC          0x08    /* make commit synchronous */
-#define XFS_TRANS_DQ_DIRTY     0x10    /* at least one dquot in trx dirty */
-#define XFS_TRANS_RESERVE      0x20    /* OK to use reserved data blocks */
-#define XFS_TRANS_FREEZE_PROT  0x40    /* Transaction has elevated writer
-                                          count in superblock */
-
-/*
- * Values for call flags parameter.
- */
-#define        XFS_TRANS_RELEASE_LOG_RES       0x4
-#define        XFS_TRANS_ABORT                 0x8
-
-/*
- * Field values for xfs_trans_mod_sb.
- */
-#define        XFS_TRANS_SB_ICOUNT             0x00000001
-#define        XFS_TRANS_SB_IFREE              0x00000002
-#define        XFS_TRANS_SB_FDBLOCKS           0x00000004
-#define        XFS_TRANS_SB_RES_FDBLOCKS       0x00000008
-#define        XFS_TRANS_SB_FREXTENTS          0x00000010
-#define        XFS_TRANS_SB_RES_FREXTENTS      0x00000020
-#define        XFS_TRANS_SB_DBLOCKS            0x00000040
-#define        XFS_TRANS_SB_AGCOUNT            0x00000080
-#define        XFS_TRANS_SB_IMAXPCT            0x00000100
-#define        XFS_TRANS_SB_REXTSIZE           0x00000200
-#define        XFS_TRANS_SB_RBMBLOCKS          0x00000400
-#define        XFS_TRANS_SB_RBLOCKS            0x00000800
-#define        XFS_TRANS_SB_REXTENTS           0x00001000
-#define        XFS_TRANS_SB_REXTSLOG           0x00002000
-
-/*
- * Here we centralize the specification of XFS meta-data buffer
- * reference count values.  This determine how hard the buffer
- * cache tries to hold onto the buffer.
- */
-#define        XFS_AGF_REF             4
-#define        XFS_AGI_REF             4
-#define        XFS_AGFL_REF            3
-#define        XFS_INO_BTREE_REF       3
-#define        XFS_ALLOC_BTREE_REF     2
-#define        XFS_BMAP_BTREE_REF      2
-#define        XFS_DIR_BTREE_REF       2
-#define        XFS_INO_REF             2
-#define        XFS_ATTR_BTREE_REF      1
-#define        XFS_DQUOT_REF           1
-
-/*
- * Flags for xfs_trans_ichgtime().
- */
-#define        XFS_ICHGTIME_MOD        0x1     /* data fork modification 
timestamp */
-#define        XFS_ICHGTIME_CHG        0x2     /* inode field change timestamp 
*/
-#define        XFS_ICHGTIME_CREATE     0x4     /* inode create timestamp */
-
-#ifdef __KERNEL__
+#include "xfs_trans_format.h"
 
 struct xfs_buf;
 struct xfs_buftarg;
@@ -464,6 +251,4 @@ void                xfs_trans_ail_destroy(struct xfs_mount 
*);
 extern kmem_zone_t     *xfs_trans_zone;
 extern kmem_zone_t     *xfs_log_item_desc_zone;
 
-#endif /* __KERNEL__ */
-
 #endif /* __XFS_TRANS_H__ */
diff --git a/fs/xfs/xfs_trans_format.h b/fs/xfs/xfs_trans_format.h
new file mode 100644
index 0000000..a4f5d1d
--- /dev/null
+++ b/fs/xfs/xfs_trans_format.h
@@ -0,0 +1,240 @@
+/*
+ * Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef        __XFS_TRANS_FORMAT_H__
+#define        __XFS_TRANS_FORMAT_H__
+
+/*
+ * This file contains mostly on-disk format defintions for the transaction
+ * subsystem. There are some defintions that are in-memory, but are included
+ * here because they are shared with userspace simply for convenience.
+ */
+
+/*
+ * This is the structure written in the log at the head of
+ * every transaction. It identifies the type and id of the
+ * transaction, and contains the number of items logged by
+ * the transaction so we know how many to expect during recovery.
+ *
+ * Do not change the below structure without redoing the code in
+ * xlog_recover_add_to_trans() and xlog_recover_add_to_cont_trans().
+ */
+typedef struct xfs_trans_header {
+       uint            th_magic;               /* magic number */
+       uint            th_type;                /* transaction type */
+       __int32_t       th_tid;                 /* transaction id (unused) */
+       uint            th_num_items;           /* num items logged by trans */
+} xfs_trans_header_t;
+
+#define        XFS_TRANS_HEADER_MAGIC  0x5452414e      /* TRAN */
+
+/*
+ * Log item types.
+ */
+#define        XFS_LI_EFI              0x1236
+#define        XFS_LI_EFD              0x1237
+#define        XFS_LI_IUNLINK          0x1238
+#define        XFS_LI_INODE            0x123b  /* aligned ino chunks, var-size 
ibufs */
+#define        XFS_LI_BUF              0x123c  /* v2 bufs, variable sized 
inode bufs */
+#define        XFS_LI_DQUOT            0x123d
+#define        XFS_LI_QUOTAOFF         0x123e
+#define        XFS_LI_ICREATE          0x123f
+
+#define XFS_LI_TYPE_DESC \
+       { XFS_LI_EFI,           "XFS_LI_EFI" }, \
+       { XFS_LI_EFD,           "XFS_LI_EFD" }, \
+       { XFS_LI_IUNLINK,       "XFS_LI_IUNLINK" }, \
+       { XFS_LI_INODE,         "XFS_LI_INODE" }, \
+       { XFS_LI_BUF,           "XFS_LI_BUF" }, \
+       { XFS_LI_DQUOT,         "XFS_LI_DQUOT" }, \
+       { XFS_LI_QUOTAOFF,      "XFS_LI_QUOTAOFF" }, \
+       { XFS_LI_ICREATE,       "XFS_LI_ICREATE" }
+
+/*
+ * Transaction types.  Used to distinguish types of buffers.
+ */
+#define XFS_TRANS_SETATTR_NOT_SIZE     1
+#define XFS_TRANS_SETATTR_SIZE         2
+#define XFS_TRANS_INACTIVE             3
+#define XFS_TRANS_CREATE               4
+#define XFS_TRANS_CREATE_TRUNC         5
+#define XFS_TRANS_TRUNCATE_FILE                6
+#define XFS_TRANS_REMOVE               7
+#define XFS_TRANS_LINK                 8
+#define XFS_TRANS_RENAME               9
+#define XFS_TRANS_MKDIR                        10
+#define XFS_TRANS_RMDIR                        11
+#define XFS_TRANS_SYMLINK              12
+#define XFS_TRANS_SET_DMATTRS          13
+#define XFS_TRANS_GROWFS               14
+#define XFS_TRANS_STRAT_WRITE          15
+#define XFS_TRANS_DIOSTRAT             16
+/* 17 was XFS_TRANS_WRITE_SYNC */
+#define        XFS_TRANS_WRITEID               18
+#define        XFS_TRANS_ADDAFORK              19
+#define        XFS_TRANS_ATTRINVAL             20
+#define        XFS_TRANS_ATRUNCATE             21
+#define        XFS_TRANS_ATTR_SET              22
+#define        XFS_TRANS_ATTR_RM               23
+#define        XFS_TRANS_ATTR_FLAG             24
+#define        XFS_TRANS_CLEAR_AGI_BUCKET      25
+#define XFS_TRANS_QM_SBCHANGE          26
+/*
+ * Dummy entries since we use the transaction type to index into the
+ * trans_type[] in xlog_recover_print_trans_head()
+ */
+#define XFS_TRANS_DUMMY1               27
+#define XFS_TRANS_DUMMY2               28
+#define XFS_TRANS_QM_QUOTAOFF          29
+#define XFS_TRANS_QM_DQALLOC           30
+#define XFS_TRANS_QM_SETQLIM           31
+#define XFS_TRANS_QM_DQCLUSTER         32
+#define XFS_TRANS_QM_QINOCREATE                33
+#define XFS_TRANS_QM_QUOTAOFF_END      34
+#define XFS_TRANS_SB_UNIT              35
+#define XFS_TRANS_FSYNC_TS             36
+#define        XFS_TRANS_GROWFSRT_ALLOC        37
+#define        XFS_TRANS_GROWFSRT_ZERO         38
+#define        XFS_TRANS_GROWFSRT_FREE         39
+#define        XFS_TRANS_SWAPEXT               40
+#define        XFS_TRANS_SB_COUNT              41
+#define        XFS_TRANS_CHECKPOINT            42
+#define        XFS_TRANS_ICREATE               43
+#define        XFS_TRANS_TYPE_MAX              43
+/* new transaction types need to be reflected in xfs_logprint(8) */
+
+#define XFS_TRANS_TYPES \
+       { XFS_TRANS_SETATTR_NOT_SIZE,   "SETATTR_NOT_SIZE" }, \
+       { XFS_TRANS_SETATTR_SIZE,       "SETATTR_SIZE" }, \
+       { XFS_TRANS_INACTIVE,           "INACTIVE" }, \
+       { XFS_TRANS_CREATE,             "CREATE" }, \
+       { XFS_TRANS_CREATE_TRUNC,       "CREATE_TRUNC" }, \
+       { XFS_TRANS_TRUNCATE_FILE,      "TRUNCATE_FILE" }, \
+       { XFS_TRANS_REMOVE,             "REMOVE" }, \
+       { XFS_TRANS_LINK,               "LINK" }, \
+       { XFS_TRANS_RENAME,             "RENAME" }, \
+       { XFS_TRANS_MKDIR,              "MKDIR" }, \
+       { XFS_TRANS_RMDIR,              "RMDIR" }, \
+       { XFS_TRANS_SYMLINK,            "SYMLINK" }, \
+       { XFS_TRANS_SET_DMATTRS,        "SET_DMATTRS" }, \
+       { XFS_TRANS_GROWFS,             "GROWFS" }, \
+       { XFS_TRANS_STRAT_WRITE,        "STRAT_WRITE" }, \
+       { XFS_TRANS_DIOSTRAT,           "DIOSTRAT" }, \
+       { XFS_TRANS_WRITEID,            "WRITEID" }, \
+       { XFS_TRANS_ADDAFORK,           "ADDAFORK" }, \
+       { XFS_TRANS_ATTRINVAL,          "ATTRINVAL" }, \
+       { XFS_TRANS_ATRUNCATE,          "ATRUNCATE" }, \
+       { XFS_TRANS_ATTR_SET,           "ATTR_SET" }, \
+       { XFS_TRANS_ATTR_RM,            "ATTR_RM" }, \
+       { XFS_TRANS_ATTR_FLAG,          "ATTR_FLAG" }, \
+       { XFS_TRANS_CLEAR_AGI_BUCKET,   "CLEAR_AGI_BUCKET" }, \
+       { XFS_TRANS_QM_SBCHANGE,        "QM_SBCHANGE" }, \
+       { XFS_TRANS_QM_QUOTAOFF,        "QM_QUOTAOFF" }, \
+       { XFS_TRANS_QM_DQALLOC,         "QM_DQALLOC" }, \
+       { XFS_TRANS_QM_SETQLIM,         "QM_SETQLIM" }, \
+       { XFS_TRANS_QM_DQCLUSTER,       "QM_DQCLUSTER" }, \
+       { XFS_TRANS_QM_QINOCREATE,      "QM_QINOCREATE" }, \
+       { XFS_TRANS_QM_QUOTAOFF_END,    "QM_QOFF_END" }, \
+       { XFS_TRANS_SB_UNIT,            "SB_UNIT" }, \
+       { XFS_TRANS_FSYNC_TS,           "FSYNC_TS" }, \
+       { XFS_TRANS_GROWFSRT_ALLOC,     "GROWFSRT_ALLOC" }, \
+       { XFS_TRANS_GROWFSRT_ZERO,      "GROWFSRT_ZERO" }, \
+       { XFS_TRANS_GROWFSRT_FREE,      "GROWFSRT_FREE" }, \
+       { XFS_TRANS_SWAPEXT,            "SWAPEXT" }, \
+       { XFS_TRANS_SB_COUNT,           "SB_COUNT" }, \
+       { XFS_TRANS_CHECKPOINT,         "CHECKPOINT" }, \
+       { XFS_TRANS_DUMMY1,             "DUMMY1" }, \
+       { XFS_TRANS_DUMMY2,             "DUMMY2" }, \
+       { XLOG_UNMOUNT_REC_TYPE,        "UNMOUNT" }
+
+
+/* --- Information from here down is in-memory --- */
+
+/*
+ * This structure is used to track log items associated with
+ * a transaction.  It points to the log item and keeps some
+ * flags to track the state of the log item.  It also tracks
+ * the amount of space needed to log the item it describes
+ * once we get to commit processing (see xfs_trans_commit()).
+ */
+struct xfs_log_item_desc {
+       struct xfs_log_item     *lid_item;
+       struct list_head        lid_trans;
+       unsigned char           lid_flags;
+};
+
+#define XFS_LID_DIRTY          0x1
+
+/*
+ * Values for t_flags.
+ */
+#define        XFS_TRANS_DIRTY         0x01    /* something needs to be logged 
*/
+#define        XFS_TRANS_SB_DIRTY      0x02    /* superblock is modified */
+#define        XFS_TRANS_PERM_LOG_RES  0x04    /* xact took a permanent log 
res */
+#define        XFS_TRANS_SYNC          0x08    /* make commit synchronous */
+#define XFS_TRANS_DQ_DIRTY     0x10    /* at least one dquot in trx dirty */
+#define XFS_TRANS_RESERVE      0x20    /* OK to use reserved data blocks */
+#define XFS_TRANS_FREEZE_PROT  0x40    /* Transaction has elevated writer
+                                          count in superblock */
+/*
+ * Values for call flags parameter.
+ */
+#define        XFS_TRANS_RELEASE_LOG_RES       0x4
+#define        XFS_TRANS_ABORT                 0x8
+
+/*
+ * Field values for xfs_trans_mod_sb.
+ */
+#define        XFS_TRANS_SB_ICOUNT             0x00000001
+#define        XFS_TRANS_SB_IFREE              0x00000002
+#define        XFS_TRANS_SB_FDBLOCKS           0x00000004
+#define        XFS_TRANS_SB_RES_FDBLOCKS       0x00000008
+#define        XFS_TRANS_SB_FREXTENTS          0x00000010
+#define        XFS_TRANS_SB_RES_FREXTENTS      0x00000020
+#define        XFS_TRANS_SB_DBLOCKS            0x00000040
+#define        XFS_TRANS_SB_AGCOUNT            0x00000080
+#define        XFS_TRANS_SB_IMAXPCT            0x00000100
+#define        XFS_TRANS_SB_REXTSIZE           0x00000200
+#define        XFS_TRANS_SB_RBMBLOCKS          0x00000400
+#define        XFS_TRANS_SB_RBLOCKS            0x00000800
+#define        XFS_TRANS_SB_REXTENTS           0x00001000
+#define        XFS_TRANS_SB_REXTSLOG           0x00002000
+
+/*
+ * Here we centralize the specification of XFS meta-data buffer
+ * reference count values.  This determine how hard the buffer
+ * cache tries to hold onto the buffer.
+ */
+#define        XFS_AGF_REF             4
+#define        XFS_AGI_REF             4
+#define        XFS_AGFL_REF            3
+#define        XFS_INO_BTREE_REF       3
+#define        XFS_ALLOC_BTREE_REF     2
+#define        XFS_BMAP_BTREE_REF      2
+#define        XFS_DIR_BTREE_REF       2
+#define        XFS_INO_REF             2
+#define        XFS_ATTR_BTREE_REF      1
+#define        XFS_DQUOT_REF           1
+
+/*
+ * Flags for xfs_trans_ichgtime().
+ */
+#define        XFS_ICHGTIME_MOD        0x1     /* data fork modification 
timestamp */
+#define        XFS_ICHGTIME_CHG        0x2     /* inode field change timestamp 
*/
+#define        XFS_ICHGTIME_CREATE     0x4     /* inode create timestamp */
+
+#endif /* __XFS_TRANS_FORMAT_H__ */
-- 
1.7.10.4

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