[mirror_ubuntu-bionic-kernel.git] / fs / xfs / libxfs / xfs_inode_buf.h

/*
 * Copyright (c) 2000-2003,2005 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_BUF_H__
#define	__XFS_INODE_BUF_H__

struct xfs_inode;
struct xfs_dinode;

/*
 * In memory representation of the XFS inode. This is held in the in-core struct
 * xfs_inode and represents the current on disk values but the structure is not
 * in on-disk format.  That is, this structure is always translated to on-disk
 * format specific structures at the appropriate time.
 */
struct xfs_icdinode {
	__int8_t	di_version;	/* inode version */
	__int8_t	di_format;	/* format of di_c data */
	__uint16_t	di_flushiter;	/* incremented on flush */
	__uint32_t	di_uid;		/* owner's user id */
	__uint32_t	di_gid;		/* owner's group id */
	__uint16_t	di_projid_lo;	/* lower part of owner's project id */
	__uint16_t	di_projid_hi;	/* higher part of owner's project id */
	xfs_fsize_t	di_size;	/* number of bytes in file */
	xfs_rfsblock_t	di_nblocks;	/* # of direct & btree blocks used */
	xfs_extlen_t	di_extsize;	/* basic/minimum extent size for file */
	xfs_extnum_t	di_nextents;	/* number of extents in data fork */
	xfs_aextnum_t	di_anextents;	/* number of extents in attribute fork*/
	__uint8_t	di_forkoff;	/* attr fork offs, <<3 for 64b align */
	__int8_t	di_aformat;	/* format of attr fork's data */
	__uint32_t	di_dmevmask;	/* DMIG event mask */
	__uint16_t	di_dmstate;	/* DMIG state info */
	__uint16_t	di_flags;	/* random flags, XFS_DIFLAG_... */

	__uint64_t	di_flags2;	/* more random flags */
	__uint32_t	di_cowextsize;	/* basic cow extent size for file */

	xfs_ictimestamp_t di_crtime;	/* time created */
};

/*
 * Inode location information.  Stored in the inode and passed to
 * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
 */
struct xfs_imap {
	xfs_daddr_t	im_blkno;	/* starting BB of inode chunk */
	ushort		im_len;		/* length in BBs of inode chunk */
	ushort		im_boffset;	/* inode offset in block in bytes */
};

int	xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
		       struct xfs_imap *, struct xfs_dinode **,
		       struct xfs_buf **, uint, uint);
int	xfs_iread(struct xfs_mount *, struct xfs_trans *,
		  struct xfs_inode *, uint);
void	xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
			  xfs_lsn_t lsn);
void	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
void	xfs_log_dinode_to_disk(struct xfs_log_dinode *from,
			       struct xfs_dinode *to);

#if defined(DEBUG)
void	xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
#else
#define	xfs_inobp_check(mp, bp)
#endif /* DEBUG */

#endif	/* __XFS_INODE_BUF_H__ */
Commit	Line	Data
1fd7115e DC	1	/*
	2	* Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
	3	* All Rights Reserved.
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	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.
	13	*
	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
	17	*/
	18	#ifndef __XFS_INODE_BUF_H__
	19	#define __XFS_INODE_BUF_H__
	20
	21	struct xfs_inode;
	22	struct xfs_dinode;
f8d55aa0 DC	23
f8d55aa0 DC	24	/*
93f958f9 DC	25	* In memory representation of the XFS inode. This is held in the in-core struct
	26	* xfs_inode and represents the current on disk values but the structure is not
	27	* in on-disk format. That is, this structure is always translated to on-disk
f8d55aa0 DC	28	* format specific structures at the appropriate time.
	29	*/
	30	struct xfs_icdinode {
f8d55aa0 DC	31	__int8_t di_version; /* inode version */
f8d55aa0 DC	32	__int8_t di_format; /* format of di_c data */
93f958f9	33	__uint16_t di_flushiter; /* incremented on flush */
f8d55aa0 DC	34	__uint32_t di_uid; /* owner's user id */
f8d55aa0 DC	35	__uint32_t di_gid; /* owner's group id */
f8d55aa0 DC	36	__uint16_t di_projid_lo; /* lower part of owner's project id */
f8d55aa0 DC	37	__uint16_t di_projid_hi; /* higher part of owner's project id */
f8d55aa0 DC	38	xfs_fsize_t di_size; /* number of bytes in file */
	39	xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */
	40	xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
	41	xfs_extnum_t di_nextents; /* number of extents in data fork */
	42	xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/
	43	__uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
	44	__int8_t di_aformat; /* format of attr fork's data */
	45	__uint32_t di_dmevmask; /* DMIG event mask */
	46	__uint16_t di_dmstate; /* DMIG state info */
	47	__uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
f8d55aa0	48
f8d55aa0	49	__uint64_t di_flags2; /* more random flags */
f7ca3522	50	__uint32_t di_cowextsize; /* basic cow extent size for file */
f8d55aa0	51
f8d55aa0	52	xfs_ictimestamp_t di_crtime; /* time created */
f8d55aa0	53	};
1fd7115e DC	54
	55	/*
	56	* Inode location information. Stored in the inode and passed to
	57	* xfs_imap_to_bp() to get a buffer and dinode for a given inode.
	58	*/
	59	struct xfs_imap {
	60	xfs_daddr_t im_blkno; /* starting BB of inode chunk */
	61	ushort im_len; /* length in BBs of inode chunk */
	62	ushort im_boffset; /* inode offset in block in bytes */
	63	};
	64
638f4416 DC	65	int xfs_imap_to_bp(struct xfs_mount , struct xfs_trans ,
	66	struct xfs_imap , struct xfs_dinode *,
	67	struct xfs_buf **, uint, uint);
	68	int xfs_iread(struct xfs_mount , struct xfs_trans ,
	69	struct xfs_inode *, uint);
	70	void xfs_dinode_calc_crc(struct xfs_mount , struct xfs_dinode );
93f958f9 DC	71	void xfs_inode_to_disk(struct xfs_inode ip, struct xfs_dinode to,
93f958f9 DC	72	xfs_lsn_t lsn);
3987848c DC	73	void xfs_inode_from_disk(struct xfs_inode ip, struct xfs_dinode from);
	74	void xfs_log_dinode_to_disk(struct xfs_log_dinode *from,
	75	struct xfs_dinode *to);
1fd7115e DC	76
1fd7115e DC	77	#if defined(DEBUG)
638f4416	78	void xfs_inobp_check(struct xfs_mount , struct xfs_buf );
1fd7115e DC	79	#else
	80	#define xfs_inobp_check(mp, bp)
	81	#endif /* DEBUG */
	82
1fd7115e	83	#endif /* __XFS_INODE_BUF_H__ */