Re: [PATCH 07/49] xfs: split out on-disk transaction definitions

Brian Foster
2013-07-24T12:13:07Z

On 07/19/2013 02:24 AM, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> 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@redhat.com>
> ---

Removed XFS_TRANS_MAGIC, added missing XFS_LI_ICREATE description
string, otherwise code shuffling:

Reviewed-by: Brian Foster <bfoster@redhat.com>

> fs/xfs/xfs_log_format.h | 206 ++++++++++++++++++++++++++++++++++++++++++++++++
> fs/xfs/xfs_trans.c | 4 +-
> fs/xfs/xfs_trans.h | 205 -----------------------------------------------
> 3 files changed, 208 insertions(+), 207 deletions(-)
>
> diff --git a/fs/xfs/xfs_log_format.h b/fs/xfs/xfs_log_format.h
> index 02639c7..faf3f43 100644
> --- a/fs/xfs/xfs_log_format.h
> +++ b/fs/xfs/xfs_log_format.h
> @@ -187,6 +187,212 @@ typedef struct xfs_log_iovec {
>
>
> /*
> + * Transaction Header definitions.
> + *
> + * 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
> +
> +/*
> + * 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
> +
> +/*
> * Inode Log Item Format definitions.
> *
> * This is the structure used to lay out an inode log item in the
> diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
> index 1d2a061..9b70df3 100644
> --- a/fs/xfs/xfs_trans.c
> +++ b/fs/xfs/xfs_trans.c
> @@ -744,7 +744,7 @@ _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);
> @@ -789,7 +789,7 @@ 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 2b49463..ffaa584 100644
> --- a/fs/xfs/xfs_trans.h
> +++ b/fs/xfs/xfs_trans.h
> @@ -21,195 +21,6 @@
> struct xfs_log_item;
>
> /*
> - * 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" }
> -
> -/*
> - * 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
> -
> -
> -/*
> * Per-extent log reservation for the allocation btree changes
> * involved in freeing or allocating an extent.
> * 2 trees * (2 blocks/level * max depth - 1)
> @@ -282,22 +93,6 @@ struct xfs_log_item_desc {
> #define XFS_ATTRSET_LOG_COUNT 3
> #define XFS_ATTRRM_LOG_COUNT 3
>
> -/*
> - * 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
> -
> #ifdef __KERNEL__
>
> struct xfs_buf;