[linux-2.6-block.git] / fs / xfs / xfs_trans.h

/*
 * 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__

/* kernel only transaction subsystem defines */

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_mount;
struct xfs_trans;
struct xfs_trans_res;
struct xfs_dquot_acct;
struct xfs_rud_log_item;
struct xfs_rui_log_item;
struct xfs_btree_cur;
struct xfs_cui_log_item;
struct xfs_cud_log_item;
struct xfs_defer_ops;
struct xfs_bui_log_item;
struct xfs_bud_log_item;

typedef struct xfs_log_item {
	struct list_head		li_ail;		/* AIL pointers */
	struct list_head		li_trans;	/* transaction list */
	xfs_lsn_t			li_lsn;		/* last on-disk lsn */
	struct xfs_mount		*li_mountp;	/* ptr to fs mount */
	struct xfs_ail			*li_ailp;	/* ptr to AIL */
	uint				li_type;	/* item type */
	unsigned long			li_flags;	/* misc flags */
	struct xfs_buf			*li_buf;	/* real buffer pointer */
	struct list_head		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 */
	struct xfs_log_vec		*li_lv_shadow;	/* standby vector */
	xfs_lsn_t			li_seq;		/* CIL commit seq */
} xfs_log_item_t;

/*
 * li_flags use the (set/test/clear)_bit atomic interfaces because updates can
 * race with each other and we don't want to have to use the AIL lock to
 * serialise all updates.
 */
#define	XFS_LI_IN_AIL	0
#define	XFS_LI_ABORTED	1
#define	XFS_LI_FAILED	2
#define	XFS_LI_DIRTY	3	/* log item dirty in transaction */

#define XFS_LI_FLAGS \
	{ (1 << XFS_LI_IN_AIL),		"IN_AIL" }, \
	{ (1 << XFS_LI_ABORTED),	"ABORTED" }, \
	{ (1 << XFS_LI_FAILED),		"FAILED" }, \
	{ (1 << XFS_LI_DIRTY),		"DIRTY" }

struct xfs_item_ops {
	void (*iop_size)(xfs_log_item_t *, int *, int *);
	void (*iop_format)(xfs_log_item_t *, struct xfs_log_vec *);
	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);
	void (*iop_error)(xfs_log_item_t *, xfs_buf_t *);
};

void	xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
			  int type, const struct xfs_item_ops *ops);

/*
 * 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 structure maintained for every active transaction.
 */
typedef struct xfs_trans {
	unsigned int		t_magic;	/* magic number */
	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 */
	struct xfs_mount	*t_mountp;	/* ptr to fs mount struct */
	struct xfs_dquot_acct   *t_dqinfo;	/* acctg info for dquots */
	struct xfs_defer_ops	*t_agfl_dfops;	/* optional agfl fixup dfops */
	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 */
#if defined(DEBUG) || defined(XFS_WARN)
	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 */
	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_set_sync(tp)		((tp)->t_flags |= XFS_TRANS_SYNC)

#if defined(DEBUG) || defined(XFS_WARN)
#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.
 */
int		xfs_trans_alloc(struct xfs_mount *mp, struct xfs_trans_res *resp,
			uint blocks, uint rtextents, uint flags,
			struct xfs_trans **tpp);
int		xfs_trans_alloc_empty(struct xfs_mount *mp,
			struct xfs_trans **tpp);
void		xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);

struct xfs_buf	*xfs_trans_get_buf_map(struct xfs_trans *tp,
				       struct xfs_buftarg *target,
				       struct xfs_buf_map *map, int nmaps,
				       uint flags);

static inline struct xfs_buf *
xfs_trans_get_buf(
	struct xfs_trans	*tp,
	struct xfs_buftarg	*target,
	xfs_daddr_t		blkno,
	int			numblks,
	uint			flags)
{
	DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
	return xfs_trans_get_buf_map(tp, target, &map, 1, flags);
}

int		xfs_trans_read_buf_map(struct xfs_mount *mp,
				       struct xfs_trans *tp,
				       struct xfs_buftarg *target,
				       struct xfs_buf_map *map, int nmaps,
				       xfs_buf_flags_t flags,
				       struct xfs_buf **bpp,
				       const struct xfs_buf_ops *ops);

static inline int
xfs_trans_read_buf(
	struct xfs_mount	*mp,
	struct xfs_trans	*tp,
	struct xfs_buftarg	*target,
	xfs_daddr_t		blkno,
	int			numblks,
	xfs_buf_flags_t		flags,
	struct xfs_buf		**bpp,
	const struct xfs_buf_ops *ops)
{
	DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
	return xfs_trans_read_buf_map(mp, tp, target, &map, 1,
				      flags, bpp, ops);
}

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 *);
bool		xfs_trans_ordered_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(struct xfs_trans *, struct xfs_buf *, uint,
				  uint);
void		xfs_trans_dirty_buf(struct xfs_trans *, struct xfs_buf *);
void		xfs_trans_log_inode(xfs_trans_t *, struct xfs_inode *, uint);

void		xfs_extent_free_init_defer_op(void);
struct xfs_efd_log_item	*xfs_trans_get_efd(struct xfs_trans *,
				  struct xfs_efi_log_item *,
				  uint);
int		xfs_trans_free_extent(struct xfs_trans *,
				      struct xfs_efd_log_item *, xfs_fsblock_t,
				      xfs_extlen_t, struct xfs_owner_info *,
				      bool);
int		xfs_trans_commit(struct xfs_trans *);
int		xfs_trans_roll(struct xfs_trans **);
int		xfs_trans_roll_inode(struct xfs_trans **, struct xfs_inode *);
void		xfs_trans_cancel(xfs_trans_t *);
int		xfs_trans_ail_init(struct xfs_mount *);
void		xfs_trans_ail_destroy(struct xfs_mount *);

void		xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
				       enum xfs_blft);
void		xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
					struct xfs_buf *src_bp);

extern kmem_zone_t	*xfs_trans_zone;

/* rmap updates */
enum xfs_rmap_intent_type;

void xfs_rmap_update_init_defer_op(void);
struct xfs_rud_log_item *xfs_trans_get_rud(struct xfs_trans *tp,
		struct xfs_rui_log_item *ruip);
int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp,
		struct xfs_rud_log_item *rudp, enum xfs_rmap_intent_type type,
		uint64_t owner, int whichfork, xfs_fileoff_t startoff,
		xfs_fsblock_t startblock, xfs_filblks_t blockcount,
		xfs_exntst_t state, struct xfs_btree_cur **pcur);

/* refcount updates */
enum xfs_refcount_intent_type;

void xfs_refcount_update_init_defer_op(void);
struct xfs_cud_log_item *xfs_trans_get_cud(struct xfs_trans *tp,
		struct xfs_cui_log_item *cuip);
int xfs_trans_log_finish_refcount_update(struct xfs_trans *tp,
		struct xfs_cud_log_item *cudp, struct xfs_defer_ops *dfops,
		enum xfs_refcount_intent_type type, xfs_fsblock_t startblock,
		xfs_extlen_t blockcount, xfs_fsblock_t *new_fsb,
		xfs_extlen_t *new_len, struct xfs_btree_cur **pcur);

/* mapping updates */
enum xfs_bmap_intent_type;

void xfs_bmap_update_init_defer_op(void);
struct xfs_bud_log_item *xfs_trans_get_bud(struct xfs_trans *tp,
		struct xfs_bui_log_item *buip);
int xfs_trans_log_finish_bmap_update(struct xfs_trans *tp,
		struct xfs_bud_log_item *rudp, struct xfs_defer_ops *dfops,
		enum xfs_bmap_intent_type type, struct xfs_inode *ip,
		int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock,
		xfs_filblks_t *blockcount, xfs_exntst_t state);

#endif	/* __XFS_TRANS_H__ */
Commit	Line	Data
1da177e4	1	/*
7b718769 NS	2	* Copyright (c) 2000-2002,2005 Silicon Graphics, Inc.
7b718769 NS	3	* All Rights Reserved.
1da177e4	4	*
7b718769 NS	5	* This program is free software; you can redistribute it and/or
7b718769 NS	6	* modify it under the terms of the GNU General Public License as
1da177e4 LT	7	* published by the Free Software Foundation.
1da177e4 LT	8	*
7b718769 NS	9	* This program is distributed in the hope that it would be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
1da177e4	13	*
7b718769 NS	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write the Free Software Foundation,
	16	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
1da177e4 LT	17	*/
	18	#ifndef __XFS_TRANS_H__
	19	#define __XFS_TRANS_H__
	20
7fd36c44	21	/* kernel only transaction subsystem defines */
847fff5c BN	22
	23	struct xfs_buf;
	24	struct xfs_buftarg;
	25	struct xfs_efd_log_item;
	26	struct xfs_efi_log_item;
	27	struct xfs_inode;
	28	struct xfs_item_ops;
	29	struct xfs_log_iovec;
847fff5c BN	30	struct xfs_mount;
847fff5c BN	31	struct xfs_trans;
3d3c8b52	32	struct xfs_trans_res;
847fff5c	33	struct xfs_dquot_acct;
f8dbebef DW	34	struct xfs_rud_log_item;
f8dbebef DW	35	struct xfs_rui_log_item;
9c194644	36	struct xfs_btree_cur;
f997ee21	37	struct xfs_cui_log_item;
33ba6129 DW	38	struct xfs_cud_log_item;
33ba6129 DW	39	struct xfs_defer_ops;
77d61fe4	40	struct xfs_bui_log_item;
9f3afb57	41	struct xfs_bud_log_item;
847fff5c BN	42
	43	typedef struct xfs_log_item {
	44	struct list_head li_ail; /* AIL pointers */
e6631f85	45	struct list_head li_trans; /* transaction list */
847fff5c	46	xfs_lsn_t li_lsn; /* last on-disk lsn */
847fff5c	47	struct xfs_mount li_mountp; / ptr to fs mount */
fc1829f3	48	struct xfs_ail li_ailp; / ptr to AIL */
847fff5c	49	uint li_type; /* item type */
22525c17	50	unsigned long li_flags; /* misc flags */
d3a304b6	51	struct xfs_buf li_buf; / real buffer pointer */
643c8c05	52	struct list_head li_bio_list; /* buffer item list */
847fff5c BN	53	void (li_cb)(struct xfs_buf ,
	54	struct xfs_log_item *);
	55	/* buffer item iodone */
	56	/* callback func */
272e42b2	57	const struct xfs_item_ops li_ops; / function list */
71e330b5 DC	58
	59	/* delayed logging */
	60	struct list_head li_cil; /* CIL pointers */
	61	struct xfs_log_vec li_lv; / active log vector */
b1c5ebb2	62	struct xfs_log_vec li_lv_shadow; / standby vector */
ccf7c23f	63	xfs_lsn_t li_seq; /* CIL commit seq */
847fff5c BN	64	} xfs_log_item_t;
847fff5c BN	65
22525c17 DC	66	/*
	67	* li_flags use the (set/test/clear)_bit atomic interfaces because updates can
	68	* race with each other and we don't want to have to use the AIL lock to
	69	* serialise all updates.
	70	*/
	71	#define XFS_LI_IN_AIL 0
	72	#define XFS_LI_ABORTED 1
	73	#define XFS_LI_FAILED 2
e6631f85	74	#define XFS_LI_DIRTY 3 /* log item dirty in transaction */
847fff5c	75
0b1b213f	76	#define XFS_LI_FLAGS \
22525c17 DC	77	{ (1 << XFS_LI_IN_AIL), "IN_AIL" }, \
22525c17 DC	78	{ (1 << XFS_LI_ABORTED), "ABORTED" }, \
e6631f85 DC	79	{ (1 << XFS_LI_FAILED), "FAILED" }, \
e6631f85 DC	80	{ (1 << XFS_LI_DIRTY), "DIRTY" }
0b1b213f	81
272e42b2	82	struct xfs_item_ops {
166d1368	83	void (iop_size)(xfs_log_item_t , int , int );
bde7cff6	84	void (iop_format)(xfs_log_item_t , struct xfs_log_vec *);
847fff5c	85	void (iop_pin)(xfs_log_item_t );
9412e318	86	void (iop_unpin)(xfs_log_item_t , int remove);
43ff2122	87	uint (iop_push)(struct xfs_log_item , struct list_head *);
847fff5c BN	88	void (iop_unlock)(xfs_log_item_t );
847fff5c BN	89	xfs_lsn_t (iop_committed)(xfs_log_item_t , xfs_lsn_t);
847fff5c	90	void (iop_committing)(xfs_log_item_t , xfs_lsn_t);
0b80ae6e	91	void (iop_error)(xfs_log_item_t , xfs_buf_t *);
272e42b2	92	};
847fff5c	93
239880ef DC	94	void xfs_log_item_init(struct xfs_mount mp, struct xfs_log_item item,
	95	int type, const struct xfs_item_ops *ops);
	96
847fff5c	97	/*
904c17e6	98	* Return values for the iop_push() routines.
847fff5c	99	*/
43ff2122 CH	100	#define XFS_ITEM_SUCCESS 0
	101	#define XFS_ITEM_PINNED 1
	102	#define XFS_ITEM_LOCKED 2
	103	#define XFS_ITEM_FLUSHING 3
847fff5c	104
239880ef	105
847fff5c BN	106	/*
	107	* This is the structure maintained for every active transaction.
	108	*/
	109	typedef struct xfs_trans {
	110	unsigned int t_magic; /* magic number */
847fff5c BN	111	unsigned int t_log_res; /* amt of log space resvd */
	112	unsigned int t_log_count; /* count for perm log res */
	113	unsigned int t_blk_res; /* # of blocks resvd */
	114	unsigned int t_blk_res_used; /* # of resvd blocks used */
	115	unsigned int t_rtx_res; /* # of rt extents resvd */
	116	unsigned int t_rtx_res_used; /* # of resvd rt extents used */
35a8a72f	117	struct xlog_ticket t_ticket; / log mgr ticket */
847fff5c BN	118	struct xfs_mount t_mountp; / ptr to fs mount struct */
847fff5c BN	119	struct xfs_dquot_acct t_dqinfo; / acctg info for dquots */
f8f2835a	120	struct xfs_defer_ops t_agfl_dfops; / optional agfl fixup dfops */
847fff5c BN	121	unsigned int t_flags; /* misc flags */
	122	int64_t t_icount_delta; /* superblock icount change */
	123	int64_t t_ifree_delta; /* superblock ifree change */
	124	int64_t t_fdblocks_delta; /* superblock fdblocks chg */
	125	int64_t t_res_fdblocks_delta; /* on-disk only chg */
	126	int64_t t_frextents_delta;/* superblock freextents chg*/
	127	int64_t t_res_frextents_delta; /* on-disk only chg */
742ae1e3	128	#if defined(DEBUG) \|\| defined(XFS_WARN)
847fff5c BN	129	int64_t t_ag_freeblks_delta; /* debugging counter */
	130	int64_t t_ag_flist_delta; /* debugging counter */
	131	int64_t t_ag_btree_delta; /* debugging counter */
	132	#endif
	133	int64_t t_dblocks_delta;/* superblock dblocks change */
	134	int64_t t_agcount_delta;/* superblock agcount change */
	135	int64_t t_imaxpct_delta;/* superblock imaxpct change */
	136	int64_t t_rextsize_delta;/* superblock rextsize chg */
	137	int64_t t_rbmblocks_delta;/* superblock rbmblocks chg */
	138	int64_t t_rblocks_delta;/* superblock rblocks change */
	139	int64_t t_rextents_delta;/* superblocks rextents chg */
	140	int64_t t_rextslog_delta;/* superblocks rextslog chg */
e98c414f	141	struct list_head t_items; /* log item descriptors */
ed3b4d6c	142	struct list_head t_busy; /* list of busy extents */
847fff5c BN	143	unsigned long t_pflags; /* saved process flags state */
	144	} xfs_trans_t;
	145
1da177e4 LT	146	/*
	147	* XFS transaction mechanism exported interfaces that are
	148	* actually macros.
	149	*/
1da177e4 LT	150	#define xfs_trans_set_sync(tp) ((tp)->t_flags \|= XFS_TRANS_SYNC)
1da177e4 LT	151
742ae1e3	152	#if defined(DEBUG) \|\| defined(XFS_WARN)
20f4ebf2 DC	153	#define xfs_trans_agblocks_delta(tp, d) ((tp)->t_ag_freeblks_delta += (int64_t)d)
	154	#define xfs_trans_agflist_delta(tp, d) ((tp)->t_ag_flist_delta += (int64_t)d)
	155	#define xfs_trans_agbtree_delta(tp, d) ((tp)->t_ag_btree_delta += (int64_t)d)
1da177e4 LT	156	#else
	157	#define xfs_trans_agblocks_delta(tp, d)
	158	#define xfs_trans_agflist_delta(tp, d)
	159	#define xfs_trans_agbtree_delta(tp, d)
	160	#endif
	161
	162	/*
	163	* XFS transaction mechanism exported interfaces.
	164	*/
253f4911 CH	165	int xfs_trans_alloc(struct xfs_mount mp, struct xfs_trans_res resp,
	166	uint blocks, uint rtextents, uint flags,
	167	struct xfs_trans **tpp);
e89c0413 DW	168	int xfs_trans_alloc_empty(struct xfs_mount *mp,
e89c0413 DW	169	struct xfs_trans **tpp);
20f4ebf2	170	void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);
de2a4f59 DC	171
	172	struct xfs_buf xfs_trans_get_buf_map(struct xfs_trans tp,
	173	struct xfs_buftarg *target,
	174	struct xfs_buf_map *map, int nmaps,
	175	uint flags);
	176
	177	static inline struct xfs_buf *
	178	xfs_trans_get_buf(
	179	struct xfs_trans *tp,
	180	struct xfs_buftarg *target,
	181	xfs_daddr_t blkno,
	182	int numblks,
	183	uint flags)
	184	{
c3f8fc73	185	DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
de2a4f59 DC	186	return xfs_trans_get_buf_map(tp, target, &map, 1, flags);
	187	}
	188
	189	int xfs_trans_read_buf_map(struct xfs_mount *mp,
	190	struct xfs_trans *tp,
	191	struct xfs_buftarg *target,
	192	struct xfs_buf_map *map, int nmaps,
	193	xfs_buf_flags_t flags,
c3f8fc73	194	struct xfs_buf **bpp,
1813dd64	195	const struct xfs_buf_ops *ops);
de2a4f59 DC	196
	197	static inline int
	198	xfs_trans_read_buf(
	199	struct xfs_mount *mp,
	200	struct xfs_trans *tp,
	201	struct xfs_buftarg *target,
	202	xfs_daddr_t blkno,
	203	int numblks,
	204	xfs_buf_flags_t flags,
c3f8fc73	205	struct xfs_buf **bpp,
1813dd64	206	const struct xfs_buf_ops *ops)
de2a4f59	207	{
c3f8fc73 DC	208	DEFINE_SINGLE_BUF_MAP(map, blkno, numblks);
c3f8fc73 DC	209	return xfs_trans_read_buf_map(mp, tp, target, &map, 1,
1813dd64	210	flags, bpp, ops);
de2a4f59 DC	211	}
de2a4f59 DC	212
1da177e4 LT	213	struct xfs_buf xfs_trans_getsb(xfs_trans_t , struct xfs_mount *, int);
	214
	215	void xfs_trans_brelse(xfs_trans_t , struct xfs_buf );
	216	void xfs_trans_bjoin(xfs_trans_t , struct xfs_buf );
	217	void xfs_trans_bhold(xfs_trans_t , struct xfs_buf );
efa092f3	218	void xfs_trans_bhold_release(xfs_trans_t , struct xfs_buf );
1da177e4 LT	219	void xfs_trans_binval(xfs_trans_t , struct xfs_buf );
1da177e4 LT	220	void xfs_trans_inode_buf(xfs_trans_t , struct xfs_buf );
1da177e4	221	void xfs_trans_stale_inode_buf(xfs_trans_t , struct xfs_buf );
a5814bce	222	bool xfs_trans_ordered_buf(xfs_trans_t , struct xfs_buf );
1da177e4 LT	223	void xfs_trans_dquot_buf(xfs_trans_t , struct xfs_buf , uint);
1da177e4 LT	224	void xfs_trans_inode_alloc_buf(xfs_trans_t , struct xfs_buf );
dcd79a14	225	void xfs_trans_ichgtime(struct xfs_trans , struct xfs_inode , int);
ddc3415a	226	void xfs_trans_ijoin(struct xfs_trans , struct xfs_inode , uint);
9684010d BF	227	void xfs_trans_log_buf(struct xfs_trans , struct xfs_buf , uint,
	228	uint);
	229	void xfs_trans_dirty_buf(struct xfs_trans , struct xfs_buf );
1da177e4	230	void xfs_trans_log_inode(xfs_trans_t , struct xfs_inode , uint);
9749fee8 DW	231
9749fee8 DW	232	void xfs_extent_free_init_defer_op(void);
bba61cbf	233	struct xfs_efd_log_item xfs_trans_get_efd(struct xfs_trans ,
1da177e4 LT	234	struct xfs_efi_log_item *,
1da177e4 LT	235	uint);
6bc43af3 BF	236	int xfs_trans_free_extent(struct xfs_trans *,
6bc43af3 BF	237	struct xfs_efd_log_item *, xfs_fsblock_t,
fcb762f5 BF	238	xfs_extlen_t, struct xfs_owner_info *,
fcb762f5 BF	239	bool);
70393313	240	int xfs_trans_commit(struct xfs_trans *);
411350df CH	241	int xfs_trans_roll(struct xfs_trans **);
411350df CH	242	int xfs_trans_roll_inode(struct xfs_trans *, struct xfs_inode );
4906e215	243	void xfs_trans_cancel(xfs_trans_t *);
249a8c11 DC	244	int xfs_trans_ail_init(struct xfs_mount *);
249a8c11 DC	245	void xfs_trans_ail_destroy(struct xfs_mount *);
1da177e4	246
a4fbe6ab DC	247	void xfs_trans_buf_set_type(struct xfs_trans , struct xfs_buf ,
	248	enum xfs_blft);
	249	void xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
	250	struct xfs_buf *src_bp);
	251
a8272ce0 DC	252	extern kmem_zone_t *xfs_trans_zone;
a8272ce0 DC	253
f8dbebef	254	/* rmap updates */
9e88b5d8 DW	255	enum xfs_rmap_intent_type;
9e88b5d8 DW	256
f8dbebef	257	void xfs_rmap_update_init_defer_op(void);
9e88b5d8	258	struct xfs_rud_log_item xfs_trans_get_rud(struct xfs_trans tp,
722e2517	259	struct xfs_rui_log_item *ruip);
9e88b5d8 DW	260	int xfs_trans_log_finish_rmap_update(struct xfs_trans *tp,
9e88b5d8 DW	261	struct xfs_rud_log_item *rudp, enum xfs_rmap_intent_type type,
c8ce540d	262	uint64_t owner, int whichfork, xfs_fileoff_t startoff,
9e88b5d8	263	xfs_fsblock_t startblock, xfs_filblks_t blockcount,
9c194644	264	xfs_exntst_t state, struct xfs_btree_cur **pcur);
9e88b5d8	265
f997ee21 DW	266	/* refcount updates */
	267	enum xfs_refcount_intent_type;
	268
33ba6129	269	void xfs_refcount_update_init_defer_op(void);
f997ee21 DW	270	struct xfs_cud_log_item xfs_trans_get_cud(struct xfs_trans tp,
	271	struct xfs_cui_log_item *cuip);
	272	int xfs_trans_log_finish_refcount_update(struct xfs_trans *tp,
33ba6129	273	struct xfs_cud_log_item cudp, struct xfs_defer_ops dfops,
f997ee21	274	enum xfs_refcount_intent_type type, xfs_fsblock_t startblock,
33ba6129 DW	275	xfs_extlen_t blockcount, xfs_fsblock_t *new_fsb,
33ba6129 DW	276	xfs_extlen_t new_len, struct xfs_btree_cur *pcur);
f997ee21	277
77d61fe4 DW	278	/* mapping updates */
	279	enum xfs_bmap_intent_type;
	280
	281	void xfs_bmap_update_init_defer_op(void);
	282	struct xfs_bud_log_item xfs_trans_get_bud(struct xfs_trans tp,
	283	struct xfs_bui_log_item *buip);
	284	int xfs_trans_log_finish_bmap_update(struct xfs_trans *tp,
	285	struct xfs_bud_log_item rudp, struct xfs_defer_ops dfops,
	286	enum xfs_bmap_intent_type type, struct xfs_inode *ip,
	287	int whichfork, xfs_fileoff_t startoff, xfs_fsblock_t startblock,
e1a4e37c	288	xfs_filblks_t *blockcount, xfs_exntst_t state);
77d61fe4	289
1da177e4	290	#endif /* __XFS_TRANS_H__ */