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// 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 * In memory representation of the XFS inode. This is held in the in-core struct
14 * xfs_inode and represents the current on disk values but the structure is not
15 * in on-disk format.  That is, this structure is always translated to on-disk
16 * format specific structures at the appropriate time.
17 */
18struct xfs_icdinode {
19	int8_t		di_version;	/* inode version */
20	int8_t		di_format;	/* format of di_c data */
21	uint16_t	di_flushiter;	/* incremented on flush */
22	uint32_t	di_uid;		/* owner's user id */
23	uint32_t	di_gid;		/* owner's group id */
24	uint16_t	di_projid_lo;	/* lower part of owner's project id */
25	uint16_t	di_projid_hi;	/* higher part of owner's project id */
26	xfs_fsize_t	di_size;	/* number of bytes in file */
27	xfs_rfsblock_t	di_nblocks;	/* # of direct & btree blocks used */
28	xfs_extlen_t	di_extsize;	/* basic/minimum extent size for file */
29	xfs_extnum_t	di_nextents;	/* number of extents in data fork */
30	xfs_aextnum_t	di_anextents;	/* number of extents in attribute fork*/
31	uint8_t		di_forkoff;	/* attr fork offs, <<3 for 64b align */
32	int8_t		di_aformat;	/* format of attr fork's data */
33	uint32_t	di_dmevmask;	/* DMIG event mask */
34	uint16_t	di_dmstate;	/* DMIG state info */
35	uint16_t	di_flags;	/* random flags, XFS_DIFLAG_... */
36
37	uint64_t	di_flags2;	/* more random flags */
38	uint32_t	di_cowextsize;	/* basic cow extent size for file */
39
40	xfs_ictimestamp_t di_crtime;	/* time created */
41};
42
43/*
44 * Inode location information.  Stored in the inode and passed to
45 * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
46 */
47struct xfs_imap {
48	xfs_daddr_t	im_blkno;	/* starting BB of inode chunk */
49	unsigned short	im_len;		/* length in BBs of inode chunk */
50	unsigned short	im_boffset;	/* inode offset in block in bytes */
51};
52
53int	xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
54		       struct xfs_imap *, struct xfs_dinode **,
55		       struct xfs_buf **, uint, uint);
56int	xfs_iread(struct xfs_mount *, struct xfs_trans *,
57		  struct xfs_inode *, uint);
58void	xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
59void	xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
60			  xfs_lsn_t lsn);
61void	xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
62void	xfs_log_dinode_to_disk(struct xfs_log_dinode *from,
63			       struct xfs_dinode *to);
64
65bool	xfs_dinode_good_version(struct xfs_mount *mp, __u8 version);
66
67#if defined(DEBUG)
68void	xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
69#else
70#define	xfs_inobp_check(mp, bp)
71#endif /* DEBUG */
72
73xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
74			   struct xfs_dinode *dip);
75xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
76		uint32_t extsize, uint16_t mode, uint16_t flags);
77xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
78		uint32_t cowextsize, uint16_t mode, uint16_t flags,
79		uint64_t flags2);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
80
81#endif	/* __XFS_INODE_BUF_H__ */