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_dinode_verify_metadir(struct xfs_mount *mp, 32 struct xfs_dinode *dip, uint16_t mode, uint16_t flags, 33 uint64_t flags2); 34 xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp, 35 uint32_t extsize, uint16_t mode, uint16_t flags); 36 xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp, 37 uint32_t cowextsize, uint16_t mode, uint16_t flags, 38 uint64_t flags2); 39 40 static inline uint64_t xfs_inode_encode_bigtime(struct timespec64 tv) 41 { 42 return xfs_unix_to_bigtime(tv.tv_sec) * NSEC_PER_SEC + tv.tv_nsec; 43 } 44 45 struct timespec64 xfs_inode_from_disk_ts(struct xfs_dinode *dip, 46 const xfs_timestamp_t ts); 47 48 static inline bool 49 xfs_dinode_good_version(struct xfs_mount *mp, uint8_t version) 50 { 51 if (xfs_has_v3inodes(mp)) 52 return version == 3; 53 return version == 1 || version == 2; 54 } 55 56 57 #endif /* __XFS_INODE_BUF_H__ */ 58