1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
 4 * All Rights Reserved.
 
 
 
 
 
 
 
 
 
 
 
 
 
 5 */
 6#ifndef	__XFS_INODE_BUF_H__
 7#define	__XFS_INODE_BUF_H__
 8
 9struct xfs_inode;
10struct xfs_dinode;
11
12/*
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
13 * Inode location information.  Stored in the inode and passed to
14 * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
15 */
16struct xfs_imap {
17	xfs_daddr_t	im_blkno;	/* starting BB of inode chunk */
18	unsigned short	im_len;		/* length in BBs of inode chunk */
19	unsigned short	im_boffset;	/* inode offset in block in bytes */
20};
21
22int	xfs_imap_to_bp(struct xfs_mount *mp, struct xfs_trans *tp,
23		       struct xfs_imap *imap, struct xfs_buf **bpp);
24void	xfs_dinode_calc_crc(struct xfs_mount *mp, struct xfs_dinode *dip);
 
 
 
25void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
26			  xfs_lsn_t lsn);
27int	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
28
29xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
30			   struct xfs_dinode *dip);
31xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
32		uint32_t extsize, uint16_t mode, uint16_t flags);
33xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
34		uint32_t cowextsize, uint16_t mode, uint16_t flags,
35		uint64_t flags2);
36
37static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
38{
39	return xfs_unix_to_bigtime(tv.tv_sec) * NSEC_PER_SEC + tv.tv_nsec;
40}
41
42struct timespec64 xfs_inode_from_disk_ts(struct xfs_dinode *dip,
43		const xfs_timestamp_t ts);
44
45static inline bool
46xfs_dinode_good_version(struct xfs_mount *mp, uint8_t version)
47{
48	if (xfs_has_v3inodes(mp))
49		return version == 3;
50	return version == 1 || version == 2;
51}
52
53
54#endif	/* __XFS_INODE_BUF_H__ */

 
 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
21struct xfs_inode;
22struct xfs_dinode;
23
24/*
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
28 * format specific structures at the appropriate time.
29 */
30struct xfs_icdinode {
31	__int8_t	di_version;	/* inode version */
32	__int8_t	di_format;	/* format of di_c data */
33	__uint16_t	di_flushiter;	/* incremented on flush */
34	__uint32_t	di_uid;		/* owner's user id */
35	__uint32_t	di_gid;		/* owner's group id */
36	__uint16_t	di_projid_lo;	/* lower part of owner's project id */
37	__uint16_t	di_projid_hi;	/* higher part of owner's project id */
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_... */
48
49	__uint64_t	di_flags2;	/* more random flags */
50	__uint32_t	di_cowextsize;	/* basic cow extent size for file */
51
52	xfs_ictimestamp_t di_crtime;	/* time created */
53};
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 */
59struct xfs_imap {
60	xfs_daddr_t	im_blkno;	/* starting BB of inode chunk */
61	unsigned short	im_len;		/* length in BBs of inode chunk */
62	unsigned short	im_boffset;	/* inode offset in block in bytes */
63};
64
65int	xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
66		       struct xfs_imap *, struct xfs_dinode **,
67		       struct xfs_buf **, uint, uint);
68int	xfs_iread(struct xfs_mount *, struct xfs_trans *,
69		  struct xfs_inode *, uint);
70void	xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
71void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
72			  xfs_lsn_t lsn);
73void	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
74void	xfs_log_dinode_to_disk(struct xfs_log_dinode *from,
75			       struct xfs_dinode *to);
76
77bool	xfs_dinode_good_version(struct xfs_mount *mp, __u8 version);
78
79#if defined(DEBUG)
80void	xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
81#else
82#define	xfs_inobp_check(mp, bp)
83#endif /* DEBUG */
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
84
85#endif	/* __XFS_INODE_BUF_H__ */