497 lines
		
	
	
	
		
			18 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			497 lines
		
	
	
	
		
			18 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
 | |
|  * 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_H__
 | |
| #define	__XFS_TRANS_H__
 | |
| 
 | |
| 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_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_TYPE_MAX		42
 | |
| /* 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 */
 | |
| 
 | |
| /*
 | |
|  * 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) * block size
 | |
|  */
 | |
| #define	XFS_ALLOCFREE_LOG_RES(mp,nx) \
 | |
| 	((nx) * (2 * XFS_FSB_TO_B((mp), 2 * XFS_AG_MAXLEVELS(mp) - 1)))
 | |
| #define	XFS_ALLOCFREE_LOG_COUNT(mp,nx) \
 | |
| 	((nx) * (2 * (2 * XFS_AG_MAXLEVELS(mp) - 1)))
 | |
| 
 | |
| /*
 | |
|  * Per-directory log reservation for any directory change.
 | |
|  * dir blocks: (1 btree block per level + data block + free block) * dblock size
 | |
|  * bmap btree: (levels + 2) * max depth * block size
 | |
|  * v2 directory blocks can be fragmented below the dirblksize down to the fsb
 | |
|  * size, so account for that in the DAENTER macros.
 | |
|  */
 | |
| #define	XFS_DIROP_LOG_RES(mp)	\
 | |
| 	(XFS_FSB_TO_B(mp, XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK)) + \
 | |
| 	 (XFS_FSB_TO_B(mp, XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)))
 | |
| #define	XFS_DIROP_LOG_COUNT(mp)	\
 | |
| 	(XFS_DAENTER_BLOCKS(mp, XFS_DATA_FORK) + \
 | |
| 	 XFS_DAENTER_BMAPS(mp, XFS_DATA_FORK) + 1)
 | |
| 
 | |
| 
 | |
| #define	XFS_WRITE_LOG_RES(mp)	((mp)->m_reservations.tr_write)
 | |
| #define	XFS_ITRUNCATE_LOG_RES(mp)   ((mp)->m_reservations.tr_itruncate)
 | |
| #define	XFS_RENAME_LOG_RES(mp)	((mp)->m_reservations.tr_rename)
 | |
| #define	XFS_LINK_LOG_RES(mp)	((mp)->m_reservations.tr_link)
 | |
| #define	XFS_REMOVE_LOG_RES(mp)	((mp)->m_reservations.tr_remove)
 | |
| #define	XFS_SYMLINK_LOG_RES(mp)	((mp)->m_reservations.tr_symlink)
 | |
| #define	XFS_CREATE_LOG_RES(mp)	((mp)->m_reservations.tr_create)
 | |
| #define	XFS_MKDIR_LOG_RES(mp)	((mp)->m_reservations.tr_mkdir)
 | |
| #define	XFS_IFREE_LOG_RES(mp)	((mp)->m_reservations.tr_ifree)
 | |
| #define	XFS_ICHANGE_LOG_RES(mp)	((mp)->m_reservations.tr_ichange)
 | |
| #define	XFS_GROWDATA_LOG_RES(mp)    ((mp)->m_reservations.tr_growdata)
 | |
| #define	XFS_GROWRTALLOC_LOG_RES(mp)	((mp)->m_reservations.tr_growrtalloc)
 | |
| #define	XFS_GROWRTZERO_LOG_RES(mp)	((mp)->m_reservations.tr_growrtzero)
 | |
| #define	XFS_GROWRTFREE_LOG_RES(mp)	((mp)->m_reservations.tr_growrtfree)
 | |
| #define	XFS_SWRITE_LOG_RES(mp)	((mp)->m_reservations.tr_swrite)
 | |
| /*
 | |
|  * Logging the inode timestamps on an fsync -- same as SWRITE
 | |
|  * as long as SWRITE logs the entire inode core
 | |
|  */
 | |
| #define XFS_FSYNC_TS_LOG_RES(mp)        ((mp)->m_reservations.tr_swrite)
 | |
| #define	XFS_WRITEID_LOG_RES(mp)	((mp)->m_reservations.tr_swrite)
 | |
| #define	XFS_ADDAFORK_LOG_RES(mp)	((mp)->m_reservations.tr_addafork)
 | |
| #define	XFS_ATTRINVAL_LOG_RES(mp)	((mp)->m_reservations.tr_attrinval)
 | |
| #define	XFS_ATTRSET_LOG_RES(mp, ext)	\
 | |
| 	((mp)->m_reservations.tr_attrset + \
 | |
| 	 (ext * (mp)->m_sb.sb_sectsize) + \
 | |
| 	 (ext * XFS_FSB_TO_B((mp), XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK))) + \
 | |
| 	 (128 * (ext + (ext * XFS_BM_MAXLEVELS(mp, XFS_ATTR_FORK)))))
 | |
| #define	XFS_ATTRRM_LOG_RES(mp)	((mp)->m_reservations.tr_attrrm)
 | |
| #define	XFS_CLEAR_AGI_BUCKET_LOG_RES(mp)  ((mp)->m_reservations.tr_clearagi)
 | |
| 
 | |
| 
 | |
| /*
 | |
|  * Various log count values.
 | |
|  */
 | |
| #define	XFS_DEFAULT_LOG_COUNT		1
 | |
| #define	XFS_DEFAULT_PERM_LOG_COUNT	2
 | |
| #define	XFS_ITRUNCATE_LOG_COUNT		2
 | |
| #define XFS_INACTIVE_LOG_COUNT		2
 | |
| #define	XFS_CREATE_LOG_COUNT		2
 | |
| #define	XFS_MKDIR_LOG_COUNT		3
 | |
| #define	XFS_SYMLINK_LOG_COUNT		3
 | |
| #define	XFS_REMOVE_LOG_COUNT		2
 | |
| #define	XFS_LINK_LOG_COUNT		2
 | |
| #define	XFS_RENAME_LOG_COUNT		2
 | |
| #define	XFS_WRITE_LOG_COUNT		2
 | |
| #define	XFS_ADDAFORK_LOG_COUNT		2
 | |
| #define	XFS_ATTRINVAL_LOG_COUNT		1
 | |
| #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;
 | |
| struct xfs_buftarg;
 | |
| struct xfs_efd_log_item;
 | |
| struct xfs_efi_log_item;
 | |
| struct xfs_inode;
 | |
| struct xfs_item_ops;
 | |
| struct xfs_log_iovec;
 | |
| struct xfs_log_item_desc;
 | |
| struct xfs_mount;
 | |
| struct xfs_trans;
 | |
| struct xfs_dquot_acct;
 | |
| struct xfs_busy_extent;
 | |
| 
 | |
| typedef struct xfs_log_item {
 | |
| 	struct list_head		li_ail;		/* AIL pointers */
 | |
| 	xfs_lsn_t			li_lsn;		/* last on-disk lsn */
 | |
| 	struct xfs_log_item_desc	*li_desc;	/* ptr to current desc*/
 | |
| 	struct xfs_mount		*li_mountp;	/* ptr to fs mount */
 | |
| 	struct xfs_ail			*li_ailp;	/* ptr to AIL */
 | |
| 	uint				li_type;	/* item type */
 | |
| 	uint				li_flags;	/* misc flags */
 | |
| 	struct xfs_log_item		*li_bio_list;	/* buffer item list */
 | |
| 	void				(*li_cb)(struct xfs_buf *,
 | |
| 						 struct xfs_log_item *);
 | |
| 							/* buffer item iodone */
 | |
| 							/* callback func */
 | |
| 	const struct xfs_item_ops	*li_ops;	/* function list */
 | |
| 
 | |
| 	/* delayed logging */
 | |
| 	struct list_head		li_cil;		/* CIL pointers */
 | |
| 	struct xfs_log_vec		*li_lv;		/* active log vector */
 | |
| 	xfs_lsn_t			li_seq;		/* CIL commit seq */
 | |
| } xfs_log_item_t;
 | |
| 
 | |
| #define	XFS_LI_IN_AIL	0x1
 | |
| #define XFS_LI_ABORTED	0x2
 | |
| 
 | |
| #define XFS_LI_FLAGS \
 | |
| 	{ XFS_LI_IN_AIL,	"IN_AIL" }, \
 | |
| 	{ XFS_LI_ABORTED,	"ABORTED" }
 | |
| 
 | |
| struct xfs_item_ops {
 | |
| 	uint (*iop_size)(xfs_log_item_t *);
 | |
| 	void (*iop_format)(xfs_log_item_t *, struct xfs_log_iovec *);
 | |
| 	void (*iop_pin)(xfs_log_item_t *);
 | |
| 	void (*iop_unpin)(xfs_log_item_t *, int remove);
 | |
| 	uint (*iop_push)(struct xfs_log_item *, struct list_head *);
 | |
| 	void (*iop_unlock)(xfs_log_item_t *);
 | |
| 	xfs_lsn_t (*iop_committed)(xfs_log_item_t *, xfs_lsn_t);
 | |
| 	void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
 | |
| };
 | |
| 
 | |
| #define IOP_SIZE(ip)		(*(ip)->li_ops->iop_size)(ip)
 | |
| #define IOP_FORMAT(ip,vp)	(*(ip)->li_ops->iop_format)(ip, vp)
 | |
| #define IOP_PIN(ip)		(*(ip)->li_ops->iop_pin)(ip)
 | |
| #define IOP_UNPIN(ip, remove)	(*(ip)->li_ops->iop_unpin)(ip, remove)
 | |
| #define IOP_PUSH(ip, list)	(*(ip)->li_ops->iop_push)(ip, list)
 | |
| #define IOP_UNLOCK(ip)		(*(ip)->li_ops->iop_unlock)(ip)
 | |
| #define IOP_COMMITTED(ip, lsn)	(*(ip)->li_ops->iop_committed)(ip, lsn)
 | |
| #define IOP_COMMITTING(ip, lsn) (*(ip)->li_ops->iop_committing)(ip, lsn)
 | |
| 
 | |
| /*
 | |
|  * Return values for the IOP_PUSH() routines.
 | |
|  */
 | |
| #define XFS_ITEM_SUCCESS	0
 | |
| #define XFS_ITEM_PINNED		1
 | |
| #define XFS_ITEM_LOCKED		2
 | |
| #define XFS_ITEM_FLUSHING	3
 | |
| 
 | |
| /*
 | |
|  * This is the type of function which can be given to xfs_trans_callback()
 | |
|  * to be called upon the transaction's commit to disk.
 | |
|  */
 | |
| typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
 | |
| 
 | |
| /*
 | |
|  * This is the structure maintained for every active transaction.
 | |
|  */
 | |
| typedef struct xfs_trans {
 | |
| 	unsigned int		t_magic;	/* magic number */
 | |
| 	xfs_log_callback_t	t_logcb;	/* log callback struct */
 | |
| 	unsigned int		t_type;		/* transaction type */
 | |
| 	unsigned int		t_log_res;	/* amt of log space resvd */
 | |
| 	unsigned int		t_log_count;	/* count for perm log res */
 | |
| 	unsigned int		t_blk_res;	/* # of blocks resvd */
 | |
| 	unsigned int		t_blk_res_used;	/* # of resvd blocks used */
 | |
| 	unsigned int		t_rtx_res;	/* # of rt extents resvd */
 | |
| 	unsigned int		t_rtx_res_used;	/* # of resvd rt extents used */
 | |
| 	struct xlog_ticket	*t_ticket;	/* log mgr ticket */
 | |
| 	xfs_lsn_t		t_lsn;		/* log seq num of start of
 | |
| 						 * transaction. */
 | |
| 	xfs_lsn_t		t_commit_lsn;	/* log seq num of end of
 | |
| 						 * transaction. */
 | |
| 	struct xfs_mount	*t_mountp;	/* ptr to fs mount struct */
 | |
| 	struct xfs_dquot_acct   *t_dqinfo;	/* acctg info for dquots */
 | |
| 	unsigned int		t_flags;	/* misc flags */
 | |
| 	int64_t			t_icount_delta;	/* superblock icount change */
 | |
| 	int64_t			t_ifree_delta;	/* superblock ifree change */
 | |
| 	int64_t			t_fdblocks_delta; /* superblock fdblocks chg */
 | |
| 	int64_t			t_res_fdblocks_delta; /* on-disk only chg */
 | |
| 	int64_t			t_frextents_delta;/* superblock freextents chg*/
 | |
| 	int64_t			t_res_frextents_delta; /* on-disk only chg */
 | |
| #ifdef DEBUG
 | |
| 	int64_t			t_ag_freeblks_delta; /* debugging counter */
 | |
| 	int64_t			t_ag_flist_delta; /* debugging counter */
 | |
| 	int64_t			t_ag_btree_delta; /* debugging counter */
 | |
| #endif
 | |
| 	int64_t			t_dblocks_delta;/* superblock dblocks change */
 | |
| 	int64_t			t_agcount_delta;/* superblock agcount change */
 | |
| 	int64_t			t_imaxpct_delta;/* superblock imaxpct change */
 | |
| 	int64_t			t_rextsize_delta;/* superblock rextsize chg */
 | |
| 	int64_t			t_rbmblocks_delta;/* superblock rbmblocks chg */
 | |
| 	int64_t			t_rblocks_delta;/* superblock rblocks change */
 | |
| 	int64_t			t_rextents_delta;/* superblocks rextents chg */
 | |
| 	int64_t			t_rextslog_delta;/* superblocks rextslog chg */
 | |
| 	struct list_head	t_items;	/* log item descriptors */
 | |
| 	xfs_trans_header_t	t_header;	/* header for in-log trans */
 | |
| 	struct list_head	t_busy;		/* list of busy extents */
 | |
| 	unsigned long		t_pflags;	/* saved process flags state */
 | |
| } xfs_trans_t;
 | |
| 
 | |
| /*
 | |
|  * XFS transaction mechanism exported interfaces that are
 | |
|  * actually macros.
 | |
|  */
 | |
| #define	xfs_trans_get_log_res(tp)	((tp)->t_log_res)
 | |
| #define	xfs_trans_get_log_count(tp)	((tp)->t_log_count)
 | |
| #define	xfs_trans_get_block_res(tp)	((tp)->t_blk_res)
 | |
| #define	xfs_trans_set_sync(tp)		((tp)->t_flags |= XFS_TRANS_SYNC)
 | |
| 
 | |
| #ifdef DEBUG
 | |
| #define	xfs_trans_agblocks_delta(tp, d)	((tp)->t_ag_freeblks_delta += (int64_t)d)
 | |
| #define	xfs_trans_agflist_delta(tp, d)	((tp)->t_ag_flist_delta += (int64_t)d)
 | |
| #define	xfs_trans_agbtree_delta(tp, d)	((tp)->t_ag_btree_delta += (int64_t)d)
 | |
| #else
 | |
| #define	xfs_trans_agblocks_delta(tp, d)
 | |
| #define	xfs_trans_agflist_delta(tp, d)
 | |
| #define	xfs_trans_agbtree_delta(tp, d)
 | |
| #endif
 | |
| 
 | |
| /*
 | |
|  * XFS transaction mechanism exported interfaces.
 | |
|  */
 | |
| xfs_trans_t	*xfs_trans_alloc(struct xfs_mount *, uint);
 | |
| xfs_trans_t	*_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t);
 | |
| xfs_trans_t	*xfs_trans_dup(xfs_trans_t *);
 | |
| int		xfs_trans_reserve(xfs_trans_t *, uint, uint, uint,
 | |
| 				  uint, uint);
 | |
| void		xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
 | |
| struct xfs_buf	*xfs_trans_get_buf(xfs_trans_t *, struct xfs_buftarg *, xfs_daddr_t,
 | |
| 				   int, uint);
 | |
| int		xfs_trans_read_buf(struct xfs_mount *, xfs_trans_t *,
 | |
| 				   struct xfs_buftarg *, xfs_daddr_t, int, uint,
 | |
| 				   struct xfs_buf **);
 | |
| struct xfs_buf	*xfs_trans_getsb(xfs_trans_t *, struct xfs_mount *, int);
 | |
| 
 | |
| void		xfs_trans_brelse(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_bjoin(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_bhold(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_bhold_release(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_binval(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_inode_buf(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_stale_inode_buf(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_dquot_buf(xfs_trans_t *, struct xfs_buf *, uint);
 | |
| void		xfs_trans_inode_alloc_buf(xfs_trans_t *, struct xfs_buf *);
 | |
| void		xfs_trans_ichgtime(struct xfs_trans *, struct xfs_inode *, int);
 | |
| void		xfs_trans_ijoin(struct xfs_trans *, struct xfs_inode *, uint);
 | |
| void		xfs_trans_log_buf(xfs_trans_t *, struct xfs_buf *, uint, uint);
 | |
| void		xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);
 | |
| struct xfs_efi_log_item	*xfs_trans_get_efi(xfs_trans_t *, uint);
 | |
| void		xfs_efi_release(struct xfs_efi_log_item *, uint);
 | |
| void		xfs_trans_log_efi_extent(xfs_trans_t *,
 | |
| 					 struct xfs_efi_log_item *,
 | |
| 					 xfs_fsblock_t,
 | |
| 					 xfs_extlen_t);
 | |
| struct xfs_efd_log_item	*xfs_trans_get_efd(xfs_trans_t *,
 | |
| 				  struct xfs_efi_log_item *,
 | |
| 				  uint);
 | |
| void		xfs_trans_log_efd_extent(xfs_trans_t *,
 | |
| 					 struct xfs_efd_log_item *,
 | |
| 					 xfs_fsblock_t,
 | |
| 					 xfs_extlen_t);
 | |
| int		xfs_trans_commit(xfs_trans_t *, uint flags);
 | |
| void		xfs_trans_cancel(xfs_trans_t *, int);
 | |
| int		xfs_trans_ail_init(struct xfs_mount *);
 | |
| 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__ */
 | |
| 
 | |
| void		xfs_trans_init(struct xfs_mount *);
 | |
| int		xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
 | |
| 
 | |
| #endif	/* __XFS_TRANS_H__ */
 |