1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc.
4*4882a593Smuzhiyun * All Rights Reserved.
5*4882a593Smuzhiyun */
6*4882a593Smuzhiyun #ifndef __XFS_INODE_BUF_H__
7*4882a593Smuzhiyun #define __XFS_INODE_BUF_H__
8*4882a593Smuzhiyun
9*4882a593Smuzhiyun struct xfs_inode;
10*4882a593Smuzhiyun struct xfs_dinode;
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun /*
13*4882a593Smuzhiyun * In memory representation of the XFS inode. This is held in the in-core struct
14*4882a593Smuzhiyun * xfs_inode and represents the current on disk values but the structure is not
15*4882a593Smuzhiyun * in on-disk format. That is, this structure is always translated to on-disk
16*4882a593Smuzhiyun * format specific structures at the appropriate time.
17*4882a593Smuzhiyun */
18*4882a593Smuzhiyun struct xfs_icdinode {
19*4882a593Smuzhiyun uint16_t di_flushiter; /* incremented on flush */
20*4882a593Smuzhiyun prid_t di_projid; /* owner's project id */
21*4882a593Smuzhiyun xfs_fsize_t di_size; /* number of bytes in file */
22*4882a593Smuzhiyun xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */
23*4882a593Smuzhiyun xfs_extlen_t di_extsize; /* basic/minimum extent size for file */
24*4882a593Smuzhiyun uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */
25*4882a593Smuzhiyun uint32_t di_dmevmask; /* DMIG event mask */
26*4882a593Smuzhiyun uint16_t di_dmstate; /* DMIG state info */
27*4882a593Smuzhiyun uint16_t di_flags; /* random flags, XFS_DIFLAG_... */
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun uint64_t di_flags2; /* more random flags */
30*4882a593Smuzhiyun uint32_t di_cowextsize; /* basic cow extent size for file */
31*4882a593Smuzhiyun
32*4882a593Smuzhiyun struct timespec64 di_crtime; /* time created */
33*4882a593Smuzhiyun };
34*4882a593Smuzhiyun
xfs_icdinode_has_bigtime(const struct xfs_icdinode * icd)35*4882a593Smuzhiyun static inline bool xfs_icdinode_has_bigtime(const struct xfs_icdinode *icd)
36*4882a593Smuzhiyun {
37*4882a593Smuzhiyun return icd->di_flags2 & XFS_DIFLAG2_BIGTIME;
38*4882a593Smuzhiyun }
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun /*
41*4882a593Smuzhiyun * Inode location information. Stored in the inode and passed to
42*4882a593Smuzhiyun * xfs_imap_to_bp() to get a buffer and dinode for a given inode.
43*4882a593Smuzhiyun */
44*4882a593Smuzhiyun struct xfs_imap {
45*4882a593Smuzhiyun xfs_daddr_t im_blkno; /* starting BB of inode chunk */
46*4882a593Smuzhiyun unsigned short im_len; /* length in BBs of inode chunk */
47*4882a593Smuzhiyun unsigned short im_boffset; /* inode offset in block in bytes */
48*4882a593Smuzhiyun };
49*4882a593Smuzhiyun
50*4882a593Smuzhiyun int xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *,
51*4882a593Smuzhiyun struct xfs_imap *, struct xfs_dinode **,
52*4882a593Smuzhiyun struct xfs_buf **, uint);
53*4882a593Smuzhiyun void xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *);
54*4882a593Smuzhiyun void xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
55*4882a593Smuzhiyun xfs_lsn_t lsn);
56*4882a593Smuzhiyun int xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
57*4882a593Smuzhiyun
58*4882a593Smuzhiyun xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
59*4882a593Smuzhiyun struct xfs_dinode *dip);
60*4882a593Smuzhiyun xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
61*4882a593Smuzhiyun uint32_t extsize, uint16_t mode, uint16_t flags);
62*4882a593Smuzhiyun xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp,
63*4882a593Smuzhiyun uint32_t cowextsize, uint16_t mode, uint16_t flags,
64*4882a593Smuzhiyun uint64_t flags2);
65*4882a593Smuzhiyun
xfs_inode_encode_bigtime(struct timespec64 tv)66*4882a593Smuzhiyun static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv)
67*4882a593Smuzhiyun {
68*4882a593Smuzhiyun return xfs_unix_to_bigtime(tv.tv_sec) * NSEC_PER_SEC + tv.tv_nsec;
69*4882a593Smuzhiyun }
70*4882a593Smuzhiyun
71*4882a593Smuzhiyun struct timespec64 xfs_inode_from_disk_ts(struct xfs_dinode *dip,
72*4882a593Smuzhiyun const xfs_timestamp_t ts);
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun #endif /* __XFS_INODE_BUF_H__ */
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