[thirdparty/xfsprogs-dev.git] / include / xfs_inode_item.h

/*
 * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 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.
 *
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.  Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
 *
 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 * Mountain View, CA  94043, or:
 *
 * http://www.sgi.com
 *
 * For further information regarding this notice, see:
 *
 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
 */
#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.
 *
 * Convention for naming inode log item versions :  The current version
 * is always named XFS_LI_INODE.  When an inode log item gets superseded,
 * add the latest version of IRIX that will generate logs with that item
 * to the version name.
 *
 * -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first
 *	union (ilf_u) field.  This was released with IRIX 5.3-XFS.
 * -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire
 *	structure.  This was released with IRIX 6.0.1-XFS and IRIX 6.1.
 * -Version 3 of this structure (XFS_LI_INODE) is the same as version 2
 *	so a new structure definition wasn't necessary.  However, we had
 *	to add a new type because the inode cluster size changed from 4K
 *	to 8K and the version number had to be rev'ved to keep older kernels
 *	from trying to recover logs with the 8K buffers in them.  The logging
 *	code can handle recovery on different-sized clusters now so hopefully
 *	this'll be the last time we need to change the inode log item just
 *	for a change in the inode cluster size.  This new version was
 *	released with IRIX 6.2.
 */
typedef struct xfs_inode_log_format {
	unsigned short		ilf_type;	/* inode log item type */
	unsigned short		ilf_size;	/* size of this item */
	uint			ilf_fields;	/* flags for fields logged */
	ushort			ilf_asize;	/* size of attr d/ext/root */
	ushort			ilf_dsize;	/* size of data/ext/root */
	xfs_ino_t		ilf_ino;	/* inode number */
	union {
		xfs_dev_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 */
	int			ilf_len;	/* len of inode buffer */
	int			ilf_boffset;	/* off of inode in buffer */
} xfs_inode_log_format_t;

/* Initial version shipped with IRIX 5.3-XFS */
typedef struct xfs_inode_log_format_v1 {
	unsigned short		ilf_type;	/* inode log item type */
	unsigned short		ilf_size;	/* size of this item */
	uint			ilf_fields;	/* flags for fields logged */
	uint			ilf_dsize;	/* size of data/ext/root */
	xfs_ino_t		ilf_ino;	/* inode number */
	union {
		xfs_dev_t	ilfu_rdev;	/* rdev value for dev inode*/
		uuid_t		ilfu_uuid;	/* mount point value */
	} ilf_u;
} xfs_inode_log_format_t_v1;

/*
 * 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)


#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;


#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FDATA)
int xfs_ilog_fdata(int w);
#define	XFS_ILOG_FDATA(w)	xfs_ilog_fdata(w)
#else
#define	XFS_ILOG_FDATA(w)	\
	((w) == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA)
#endif

#endif	/* __KERNEL__ */

#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FBROOT)
int xfs_ilog_fbroot(int w);
#define	XFS_ILOG_FBROOT(w)	xfs_ilog_fbroot(w)
#else
#define	XFS_ILOG_FBROOT(w)	\
	((w) == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT)
#endif
#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FEXT)
int xfs_ilog_fext(int w);
#define	XFS_ILOG_FEXT(w)	xfs_ilog_fext(w)
#else
#define	XFS_ILOG_FEXT(w)	\
	((w) == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT)
#endif

#ifdef __KERNEL__

void	xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
void	xfs_inode_item_destroy(struct xfs_inode *);
void	xfs_iflush_done(struct xfs_buf *, xfs_inode_log_item_t *);
void	xfs_iflush_abort(struct xfs_inode *);

#endif	/* __KERNEL__ */

#endif	/* __XFS_INODE_ITEM_H__ */
Commit	Line	Data
2bd0ea18	1	/*
854f7c66	2	* Copyright (c) 2000 Silicon Graphics, Inc. All Rights Reserved.
5000d01d	3	*
2bd0ea18 NS	4	* This program is free software; you can redistribute it and/or modify it
	5	* under the terms of version 2 of the GNU General Public License as
	6	* published by the Free Software Foundation.
5000d01d	7	*
2bd0ea18 NS	8	* This program is distributed in the hope that it would be useful, but
	9	* WITHOUT ANY WARRANTY; without even the implied warranty of
	10	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
5000d01d	11	*
2bd0ea18 NS	12	* Further, this software is distributed without any warranty that it is
2bd0ea18 NS	13	* free of the rightful claim of any third person regarding infringement
dfc130f3	14	* or the like. Any license provided herein, whether implied or
2bd0ea18 NS	15	* otherwise, applies only to this software file. Patent licenses, if
	16	* any, provided herein do not apply to combinations of this program with
	17	* other software, or any other product whatsoever.
5000d01d	18	*
2bd0ea18 NS	19	* You should have received a copy of the GNU General Public License along
	20	* with this program; if not, write the Free Software Foundation, Inc., 59
	21	* Temple Place - Suite 330, Boston MA 02111-1307, USA.
5000d01d	22	*
2bd0ea18 NS	23	* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
2bd0ea18 NS	24	* Mountain View, CA 94043, or:
5000d01d SL	25	*
	26	* http://www.sgi.com
	27	*
	28	* For further information regarding this notice, see:
	29	*
2bd0ea18 NS	30	* http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
2bd0ea18 NS	31	*/
dfc130f3 RC	32	#ifndef __XFS_INODE_ITEM_H__
dfc130f3 RC	33	#define __XFS_INODE_ITEM_H__
2bd0ea18 NS	34
	35	/*
	36	* This is the structure used to lay out an inode log item in the
dfc130f3	37	* log. The size of the inline data/extents/b-tree root to be logged
2bd0ea18 NS	38	* (if any) is indicated in the ilf_dsize field. Changes to this structure
	39	* must be added on to the end.
	40	*
	41	* Convention for naming inode log item versions : The current version
	42	* is always named XFS_LI_INODE. When an inode log item gets superseded,
	43	* add the latest version of IRIX that will generate logs with that item
	44	* to the version name.
	45	*
	46	* -Version 1 of this structure (XFS_LI_5_3_INODE) included up to the first
	47	* union (ilf_u) field. This was released with IRIX 5.3-XFS.
	48	* -Version 2 of this structure (XFS_LI_6_1_INODE) is currently the entire
	49	* structure. This was released with IRIX 6.0.1-XFS and IRIX 6.1.
	50	* -Version 3 of this structure (XFS_LI_INODE) is the same as version 2
dfc130f3	51	* so a new structure definition wasn't necessary. However, we had
2bd0ea18 NS	52	* to add a new type because the inode cluster size changed from 4K
	53	* to 8K and the version number had to be rev'ved to keep older kernels
	54	* from trying to recover logs with the 8K buffers in them. The logging
	55	* code can handle recovery on different-sized clusters now so hopefully
	56	* this'll be the last time we need to change the inode log item just
dfc130f3	57	* for a change in the inode cluster size. This new version was
2bd0ea18 NS	58	* released with IRIX 6.2.
	59	*/
	60	typedef struct xfs_inode_log_format {
	61	unsigned short ilf_type; /* inode log item type */
	62	unsigned short ilf_size; /* size of this item */
	63	uint ilf_fields; /* flags for fields logged */
	64	ushort ilf_asize; /* size of attr d/ext/root */
	65	ushort ilf_dsize; /* size of data/ext/root */
	66	xfs_ino_t ilf_ino; /* inode number */
	67	union {
	68	xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/
	69	uuid_t ilfu_uuid; /* mount point value */
	70	} ilf_u;
	71	__int64_t ilf_blkno; /* blkno of inode buffer */
	72	int ilf_len; /* len of inode buffer */
	73	int ilf_boffset; /* off of inode in buffer */
	74	} xfs_inode_log_format_t;
	75
	76	/* Initial version shipped with IRIX 5.3-XFS */
	77	typedef struct xfs_inode_log_format_v1 {
	78	unsigned short ilf_type; /* inode log item type */
	79	unsigned short ilf_size; /* size of this item */
	80	uint ilf_fields; /* flags for fields logged */
	81	uint ilf_dsize; /* size of data/ext/root */
	82	xfs_ino_t ilf_ino; /* inode number */
	83	union {
	84	xfs_dev_t ilfu_rdev; /* rdev value for dev inode*/
	85	uuid_t ilfu_uuid; /* mount point value */
	86	} ilf_u;
	87	} xfs_inode_log_format_t_v1;
	88
	89	/*
	90	* Flags for xfs_trans_log_inode flags field.
	91	*/
dfc130f3 RC	92	#define XFS_ILOG_CORE 0x001 /* log standard inode fields */
	93	#define XFS_ILOG_DDATA 0x002 /* log i_df.if_data */
	94	#define XFS_ILOG_DEXT 0x004 /* log i_df.if_extents */
	95	#define XFS_ILOG_DBROOT 0x008 /* log i_df.i_broot */
	96	#define XFS_ILOG_DEV 0x010 /* log the dev field */
	97	#define XFS_ILOG_UUID 0x020 /* log the uuid field */
	98	#define XFS_ILOG_ADATA 0x040 /* log i_af.if_data */
	99	#define XFS_ILOG_AEXT 0x080 /* log i_af.if_extents */
	100	#define XFS_ILOG_ABROOT 0x100 /* log i_af.i_broot */
	101
	102	#define XFS_ILOG_NONCORE (XFS_ILOG_DDATA \| XFS_ILOG_DEXT \| \
2bd0ea18 NS	103	XFS_ILOG_DBROOT \| XFS_ILOG_DEV \| \
	104	XFS_ILOG_UUID \| XFS_ILOG_ADATA \| \
	105	XFS_ILOG_AEXT \| XFS_ILOG_ABROOT)
	106
dfc130f3	107	#define XFS_ILOG_DFORK (XFS_ILOG_DDATA \| XFS_ILOG_DEXT \| \
2bd0ea18 NS	108	XFS_ILOG_DBROOT)
2bd0ea18 NS	109
dfc130f3	110	#define XFS_ILOG_AFORK (XFS_ILOG_ADATA \| XFS_ILOG_AEXT \| \
2bd0ea18 NS	111	XFS_ILOG_ABROOT)
2bd0ea18 NS	112
dfc130f3	113	#define XFS_ILOG_ALL (XFS_ILOG_CORE \| XFS_ILOG_DDATA \| \
2bd0ea18 NS	114	XFS_ILOG_DEXT \| XFS_ILOG_DBROOT \| \
	115	XFS_ILOG_DEV \| XFS_ILOG_UUID \| \
	116	XFS_ILOG_ADATA \| XFS_ILOG_AEXT \| \
	117	XFS_ILOG_ABROOT)
	118
dfc130f3 RC	119	#define XFS_ILI_HOLD 0x1
	120	#define XFS_ILI_IOLOCKED_EXCL 0x2
	121	#define XFS_ILI_IOLOCKED_SHARED 0x4
2bd0ea18	122
dfc130f3	123	#define XFS_ILI_IOLOCKED_ANY (XFS_ILI_IOLOCKED_EXCL \| XFS_ILI_IOLOCKED_SHARED)
2bd0ea18 NS	124
	125
	126	#ifdef __KERNEL__
	127
	128	struct xfs_buf;
f9e56f43	129	struct xfs_bmbt_rec_64;
2bd0ea18 NS	130	struct xfs_inode;
	131	struct xfs_mount;
	132
	133
	134	typedef struct xfs_inode_log_item {
	135	xfs_log_item_t ili_item; /* common portion */
	136	struct xfs_inode ili_inode; / inode ptr */
	137	xfs_lsn_t ili_flush_lsn; /* lsn at last flush */
	138	xfs_lsn_t ili_last_lsn; /* lsn at last transaction */
	139	unsigned short ili_ilock_recur; /* lock recursion count */
	140	unsigned short ili_iolock_recur; /* lock recursion count */
	141	unsigned short ili_flags; /* misc flags */
	142	unsigned short ili_logged; /* flushed logged data */
	143	unsigned int ili_last_fields; /* fields when flushed */
f9e56f43 NS	144	struct xfs_bmbt_rec_64 ili_extents_buf; / array of logged
	145	data exts */
	146	struct xfs_bmbt_rec_64 ili_aextents_buf; / array of logged
	147	attr exts */
dfc130f3	148	unsigned int ili_pushbuf_flag; /* one bit used in push_ail */
2bd0ea18 NS	149
2bd0ea18 NS	150	#ifdef DEBUG
dfc130f3	151	uint64_t ili_push_owner; /* one who sets pushbuf_flag
2bd0ea18 NS	152	above gets to push the buf */
	153	#endif
	154	#ifdef XFS_TRANS_DEBUG
	155	int ili_root_size;
	156	char *ili_orig_root;
	157	#endif
	158	xfs_inode_log_format_t ili_format; /* logged structure */
	159	} xfs_inode_log_item_t;
	160
	161
	162	#if XFS_WANT_FUNCS \|\| (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FDATA)
	163	int xfs_ilog_fdata(int w);
dfc130f3	164	#define XFS_ILOG_FDATA(w) xfs_ilog_fdata(w)
2bd0ea18	165	#else
dfc130f3	166	#define XFS_ILOG_FDATA(w) \
2bd0ea18 NS	167	((w) == XFS_DATA_FORK ? XFS_ILOG_DDATA : XFS_ILOG_ADATA)
	168	#endif
	169
	170	#endif /* __KERNEL__ */
	171
	172	#if XFS_WANT_FUNCS \|\| (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FBROOT)
	173	int xfs_ilog_fbroot(int w);
dfc130f3	174	#define XFS_ILOG_FBROOT(w) xfs_ilog_fbroot(w)
2bd0ea18	175	#else
dfc130f3	176	#define XFS_ILOG_FBROOT(w) \
2bd0ea18 NS	177	((w) == XFS_DATA_FORK ? XFS_ILOG_DBROOT : XFS_ILOG_ABROOT)
	178	#endif
	179	#if XFS_WANT_FUNCS \|\| (XFS_WANT_SPACE && XFSSO_XFS_ILOG_FEXT)
	180	int xfs_ilog_fext(int w);
dfc130f3	181	#define XFS_ILOG_FEXT(w) xfs_ilog_fext(w)
2bd0ea18	182	#else
dfc130f3	183	#define XFS_ILOG_FEXT(w) \
2bd0ea18 NS	184	((w) == XFS_DATA_FORK ? XFS_ILOG_DEXT : XFS_ILOG_AEXT)
	185	#endif
	186
	187	#ifdef __KERNEL__
	188
	189	void xfs_inode_item_init(struct xfs_inode , struct xfs_mount );
	190	void xfs_inode_item_destroy(struct xfs_inode *);
	191	void xfs_iflush_done(struct xfs_buf , xfs_inode_log_item_t );
	192	void xfs_iflush_abort(struct xfs_inode *);
	193
	194	#endif /* __KERNEL__ */
	195
	196	#endif /* __XFS_INODE_ITEM_H__ */