[deliverable/linux.git] / fs / xfs / xfs_inode_item.h

/*
 * Copyright (c) 2000,2005 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_INODE_ITEM_H__
#define	__XFS_INODE_ITEM_H__

/*
 * This is the structure used to lay out an inode log item in the
 * log.  The size of the inline data/extents/b-tree root to be logged
 * (if any) is indicated in the ilf_dsize field.  Changes to this structure
 * must be added on to the end.
 */
typedef struct xfs_inode_log_format {
	__uint16_t		ilf_type;	/* inode log item type */
	__uint16_t		ilf_size;	/* size of this item */
	__uint32_t		ilf_fields;	/* flags for fields logged */
	__uint16_t		ilf_asize;	/* size of attr d/ext/root */
	__uint16_t		ilf_dsize;	/* size of data/ext/root */
	__uint64_t		ilf_ino;	/* inode number */
	union {
		__uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
		uuid_t		ilfu_uuid;	/* mount point value */
	} ilf_u;
	__int64_t		ilf_blkno;	/* blkno of inode buffer */
	__int32_t		ilf_len;	/* len of inode buffer */
	__int32_t		ilf_boffset;	/* off of inode in buffer */
} xfs_inode_log_format_t;

#ifndef HAVE_FORMAT32
typedef struct xfs_inode_log_format_32 {
	__uint16_t		ilf_type;	/* inode log item type */
	__uint16_t		ilf_size;	/* size of this item */
	__uint32_t		ilf_fields;	/* flags for fields logged */
	__uint16_t		ilf_asize;	/* size of attr d/ext/root */
	__uint16_t		ilf_dsize;	/* size of data/ext/root */
	__uint64_t		ilf_ino;	/* inode number */
	union {
		__uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
		uuid_t		ilfu_uuid;	/* mount point value */
	} ilf_u;
	__int64_t		ilf_blkno;	/* blkno of inode buffer */
	__int32_t		ilf_len;	/* len of inode buffer */
	__int32_t		ilf_boffset;	/* off of inode in buffer */
} __attribute__((packed)) xfs_inode_log_format_32_t;
#endif

typedef struct xfs_inode_log_format_64 {
	__uint16_t		ilf_type;	/* inode log item type */
	__uint16_t		ilf_size;	/* size of this item */
	__uint32_t		ilf_fields;	/* flags for fields logged */
	__uint16_t		ilf_asize;	/* size of attr d/ext/root */
	__uint16_t		ilf_dsize;	/* size of data/ext/root */
	__uint32_t		ilf_pad;	/* pad for 64 bit boundary */
	__uint64_t		ilf_ino;	/* inode number */
	union {
		__uint32_t	ilfu_rdev;	/* rdev value for dev inode*/
		uuid_t		ilfu_uuid;	/* mount point value */
	} ilf_u;
	__int64_t		ilf_blkno;	/* blkno of inode buffer */
	__int32_t		ilf_len;	/* len of inode buffer */
	__int32_t		ilf_boffset;	/* off of inode in buffer */
} xfs_inode_log_format_64_t;

/*
 * Flags for xfs_trans_log_inode flags field.
 */
#define	XFS_ILOG_CORE	0x001	/* log standard inode fields */
#define	XFS_ILOG_DDATA	0x002	/* log i_df.if_data */
#define	XFS_ILOG_DEXT	0x004	/* log i_df.if_extents */
#define	XFS_ILOG_DBROOT	0x008	/* log i_df.i_broot */
#define	XFS_ILOG_DEV	0x010	/* log the dev field */
#define	XFS_ILOG_UUID	0x020	/* log the uuid field */
#define	XFS_ILOG_ADATA	0x040	/* log i_af.if_data */
#define	XFS_ILOG_AEXT	0x080	/* log i_af.if_extents */
#define	XFS_ILOG_ABROOT	0x100	/* log i_af.i_broot */

#define	XFS_ILOG_NONCORE	(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
				 XFS_ILOG_DBROOT | XFS_ILOG_DEV | \
				 XFS_ILOG_UUID | XFS_ILOG_ADATA | \
				 XFS_ILOG_AEXT | XFS_ILOG_ABROOT)

#define	XFS_ILOG_DFORK		(XFS_ILOG_DDATA | XFS_ILOG_DEXT | \
				 XFS_ILOG_DBROOT)

#define	XFS_ILOG_AFORK		(XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
				 XFS_ILOG_ABROOT)

#define	XFS_ILOG_ALL		(XFS_ILOG_CORE | XFS_ILOG_DDATA | \
				 XFS_ILOG_DEXT | XFS_ILOG_DBROOT | \
				 XFS_ILOG_DEV | XFS_ILOG_UUID | \
				 XFS_ILOG_ADATA | XFS_ILOG_AEXT | \
				 XFS_ILOG_ABROOT)

#define	XFS_ILI_HOLD		0x1
#define	XFS_ILI_IOLOCKED_EXCL	0x2
#define	XFS_ILI_IOLOCKED_SHARED	0x4

#define	XFS_ILI_IOLOCKED_ANY   (XFS_ILI_IOLOCKED_EXCL | XFS_ILI_IOLOCKED_SHARED)

static inline int xfs_ilog_fbroot(int w)
{
	return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
}

static inline int xfs_ilog_fext(int w)
{
	return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
}

static inline int xfs_ilog_fdata(int w)
{
	return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA);
}

#ifdef __KERNEL__

struct xfs_buf;
struct xfs_bmbt_rec_64;
struct xfs_inode;
struct xfs_mount;


typedef struct xfs_inode_log_item {
	xfs_log_item_t		ili_item;	   /* common portion */
	struct xfs_inode	*ili_inode;	   /* inode ptr */
	xfs_lsn_t		ili_flush_lsn;	   /* lsn at last flush */
	xfs_lsn_t		ili_last_lsn;	   /* lsn at last transaction */
	unsigned short		ili_ilock_recur;   /* lock recursion count */
	unsigned short		ili_iolock_recur;  /* lock recursion count */
	unsigned short		ili_flags;	   /* misc flags */
	unsigned short		ili_logged;	   /* flushed logged data */
	unsigned int		ili_last_fields;   /* fields when flushed */
	struct xfs_bmbt_rec_64	*ili_extents_buf;  /* array of logged
						      data exts */
	struct xfs_bmbt_rec_64	*ili_aextents_buf; /* array of logged
						      attr exts */
	unsigned int            ili_pushbuf_flag;  /* one bit used in push_ail */

#ifdef DEBUG
	uint64_t                ili_push_owner;    /* one who sets pushbuf_flag
						      above gets to push the buf */
#endif
#ifdef XFS_TRANS_DEBUG
	int			ili_root_size;
	char			*ili_orig_root;
#endif
	xfs_inode_log_format_t	ili_format;	   /* logged structure */
} xfs_inode_log_item_t;


static inline int xfs_inode_clean(xfs_inode_t *ip)
{
	return (!ip->i_itemp ||
		!(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
	       !ip->i_update_core;
}

extern void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
extern void xfs_inode_item_destroy(struct xfs_inode *);
extern void xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_istale_done(struct xfs_buf *, xfs_inode_log_item_t *);
extern void xfs_iflush_abort(struct xfs_inode *);
extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
					 xfs_inode_log_format_t *);

#endif	/* __KERNEL__ */

#endif	/* __XFS_INODE_ITEM_H__ */
Commit	Line	Data
1da177e4	1	/*
7b718769 NS	2	* Copyright (c) 2000,2005 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_INODE_ITEM_H__
	19	#define __XFS_INODE_ITEM_H__
	20
	21	/*
	22	* This is the structure used to lay out an inode log item in the
	23	* log. The size of the inline data/extents/b-tree root to be logged
	24	* (if any) is indicated in the ilf_dsize field. Changes to this structure
	25	* must be added on to the end.
1da177e4 LT	26	*/
1da177e4 LT	27	typedef struct xfs_inode_log_format {
128dabc5 TS	28	__uint16_t ilf_type; /* inode log item type */
	29	__uint16_t ilf_size; /* size of this item */
	30	__uint32_t ilf_fields; /* flags for fields logged */
	31	__uint16_t ilf_asize; /* size of attr d/ext/root */
	32	__uint16_t ilf_dsize; /* size of data/ext/root */
	33	__uint64_t ilf_ino; /* inode number */
1da177e4	34	union {
128dabc5	35	__uint32_t ilfu_rdev; /* rdev value for dev inode*/
1da177e4 LT	36	uuid_t ilfu_uuid; /* mount point value */
	37	} ilf_u;
	38	__int64_t ilf_blkno; /* blkno of inode buffer */
128dabc5 TS	39	__int32_t ilf_len; /* len of inode buffer */
128dabc5 TS	40	__int32_t ilf_boffset; /* off of inode in buffer */
1da177e4 LT	41	} xfs_inode_log_format_t;
1da177e4 LT	42
128dabc5	43	#ifndef HAVE_FORMAT32
6d192a9b	44	typedef struct xfs_inode_log_format_32 {
128dabc5 TS	45	__uint16_t ilf_type; /* inode log item type */
	46	__uint16_t ilf_size; /* size of this item */
	47	__uint32_t ilf_fields; /* flags for fields logged */
	48	__uint16_t ilf_asize; /* size of attr d/ext/root */
	49	__uint16_t ilf_dsize; /* size of data/ext/root */
	50	__uint64_t ilf_ino; /* inode number */
1da177e4	51	union {
128dabc5 TS	52	__uint32_t ilfu_rdev; /* rdev value for dev inode*/
128dabc5 TS	53	uuid_t ilfu_uuid; /* mount point value */
6d192a9b	54	} ilf_u;
128dabc5 TS	55	__int64_t ilf_blkno; /* blkno of inode buffer */
	56	__int32_t ilf_len; /* len of inode buffer */
	57	__int32_t ilf_boffset; /* off of inode in buffer */
6d192a9b	58	} __attribute__((packed)) xfs_inode_log_format_32_t;
128dabc5	59	#endif
6d192a9b TS	60
6d192a9b TS	61	typedef struct xfs_inode_log_format_64 {
128dabc5 TS	62	__uint16_t ilf_type; /* inode log item type */
	63	__uint16_t ilf_size; /* size of this item */
	64	__uint32_t ilf_fields; /* flags for fields logged */
	65	__uint16_t ilf_asize; /* size of attr d/ext/root */
	66	__uint16_t ilf_dsize; /* size of data/ext/root */
	67	__uint32_t ilf_pad; /* pad for 64 bit boundary */
	68	__uint64_t ilf_ino; /* inode number */
6d192a9b	69	union {
128dabc5 TS	70	__uint32_t ilfu_rdev; /* rdev value for dev inode*/
128dabc5 TS	71	uuid_t ilfu_uuid; /* mount point value */
1da177e4	72	} ilf_u;
128dabc5 TS	73	__int64_t ilf_blkno; /* blkno of inode buffer */
	74	__int32_t ilf_len; /* len of inode buffer */
	75	__int32_t ilf_boffset; /* off of inode in buffer */
6d192a9b	76	} xfs_inode_log_format_64_t;
1da177e4 LT	77
	78	/*
	79	* Flags for xfs_trans_log_inode flags field.
	80	*/
	81	#define XFS_ILOG_CORE 0x001 /* log standard inode fields */
	82	#define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */
	83	#define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */
	84	#define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */
	85	#define XFS_ILOG_DEV 0x010 /* log the dev field */
	86	#define XFS_ILOG_UUID 0x020 /* log the uuid field */
	87	#define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */
	88	#define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */
	89	#define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */
	90
	91	#define XFS_ILOG_NONCORE (XFS_ILOG_DDATA \| XFS_ILOG_DEXT \| \
	92	XFS_ILOG_DBROOT \| XFS_ILOG_DEV \| \
	93	XFS_ILOG_UUID \| XFS_ILOG_ADATA \| \
	94	XFS_ILOG_AEXT \| XFS_ILOG_ABROOT)
	95
	96	#define XFS_ILOG_DFORK (XFS_ILOG_DDATA \| XFS_ILOG_DEXT \| \
	97	XFS_ILOG_DBROOT)
	98
	99	#define XFS_ILOG_AFORK (XFS_ILOG_ADATA \| XFS_ILOG_AEXT \| \
	100	XFS_ILOG_ABROOT)
	101
	102	#define XFS_ILOG_ALL (XFS_ILOG_CORE \| XFS_ILOG_DDATA \| \
	103	XFS_ILOG_DEXT \| XFS_ILOG_DBROOT \| \
	104	XFS_ILOG_DEV \| XFS_ILOG_UUID \| \
	105	XFS_ILOG_ADATA \| XFS_ILOG_AEXT \| \
	106	XFS_ILOG_ABROOT)
	107
	108	#define XFS_ILI_HOLD 0x1
	109	#define XFS_ILI_IOLOCKED_EXCL 0x2
	110	#define XFS_ILI_IOLOCKED_SHARED 0x4
	111
	112	#define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL \| XFS_ILI_IOLOCKED_SHARED)
	113
847fff5c BN	114	static inline int xfs_ilog_fbroot(int w)
	115	{
	116	return (w == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT);
	117	}
	118
847fff5c BN	119	static inline int xfs_ilog_fext(int w)
	120	{
	121	return (w == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT);
	122	}
	123
847fff5c BN	124	static inline int xfs_ilog_fdata(int w)
	125	{
	126	return (w == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA);
	127	}
	128
1da177e4 LT	129	#ifdef __KERNEL__
	130
	131	struct xfs_buf;
	132	struct xfs_bmbt_rec_64;
	133	struct xfs_inode;
	134	struct xfs_mount;
	135
	136
	137	typedef struct xfs_inode_log_item {
	138	xfs_log_item_t ili_item; /* common portion */
	139	struct xfs_inode ili_inode; / inode ptr */
	140	xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
	141	xfs_lsn_t ili_last_lsn; /* lsn at last transaction */
	142	unsigned short ili_ilock_recur; /* lock recursion count */
	143	unsigned short ili_iolock_recur; /* lock recursion count */
	144	unsigned short ili_flags; /* misc flags */
	145	unsigned short ili_logged; /* flushed logged data */
	146	unsigned int ili_last_fields; /* fields when flushed */
	147	struct xfs_bmbt_rec_64 ili_extents_buf; / array of logged
	148	data exts */
	149	struct xfs_bmbt_rec_64 ili_aextents_buf; / array of logged
	150	attr exts */
	151	unsigned int ili_pushbuf_flag; /* one bit used in push_ail */
	152
	153	#ifdef DEBUG
	154	uint64_t ili_push_owner; /* one who sets pushbuf_flag
	155	above gets to push the buf */
	156	#endif
	157	#ifdef XFS_TRANS_DEBUG
	158	int ili_root_size;
	159	char *ili_orig_root;
	160	#endif
	161	xfs_inode_log_format_t ili_format; /* logged structure */
	162	} xfs_inode_log_item_t;
	163
	164
33540408 DC	165	static inline int xfs_inode_clean(xfs_inode_t *ip)
	166	{
	167	return (!ip->i_itemp \|\|
	168	!(ip->i_itemp->ili_format.ilf_fields & XFS_ILOG_ALL)) &&
	169	!ip->i_update_core;
	170	}
	171
a844f451 NS	172	extern void xfs_inode_item_init(struct xfs_inode , struct xfs_mount );
	173	extern void xfs_inode_item_destroy(struct xfs_inode *);
	174	extern void xfs_iflush_done(struct xfs_buf , xfs_inode_log_item_t );
	175	extern void xfs_istale_done(struct xfs_buf , xfs_inode_log_item_t );
	176	extern void xfs_iflush_abort(struct xfs_inode *);
6d192a9b TS	177	extern int xfs_inode_item_format_convert(xfs_log_iovec_t *,
6d192a9b TS	178	xfs_inode_log_format_t *);
1da177e4 LT	179
	180	#endif /* __KERNEL__ */
	181
	182	#endif /* __XFS_INODE_ITEM_H__ */