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
9 struct xfs_inode;
10 struct 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 */
16 struct 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
22 int xfs_imap_to_bp(struct xfs_mount *mp, struct xfs_trans *tp,
23 struct xfs_imap *imap, struct xfs_buf **bpp);
24 void xfs_dinode_calc_crc(struct xfs_mount *mp, struct xfs_dinode *dip);
25 void xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to,
26 xfs_lsn_t lsn);
27 int xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from);
28
29 xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino,
30 struct xfs_dinode *dip);
31 xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp,
32 uint32_t extsize, uint16_t mode, uint16_t flags);
33 xfs_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
37 static 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
42 struct timespec64 xfs_inode_from_disk_ts(struct xfs_dinode *dip,
43 const xfs_timestamp_t ts);
44
45 static inline bool
46 xfs_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__ */
55
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