| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 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 | * 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 | */ |
| 18 | struct xfs_icdinode { |
| 19 | int8_t di_format; /* format of di_c data */ |
| 20 | uint16_t di_flushiter; /* incremented on flush */ |
| 21 | uint32_t di_projid; /* owner's project id */ |
| 22 | xfs_fsize_t di_size; /* number of bytes in file */ |
| 23 | xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ |
| 24 | xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ |
| 25 | xfs_extnum_t di_nextents; /* number of extents in data fork */ |
| 26 | xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ |
| 27 | uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ |
| 28 | int8_t di_aformat; /* format of attr fork's data */ |
| 29 | uint32_t di_dmevmask; /* DMIG event mask */ |
| 30 | uint16_t di_dmstate; /* DMIG state info */ |
| 31 | uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ |
| 32 | |
| 33 | uint64_t di_flags2; /* more random flags */ |
| 34 | uint32_t di_cowextsize; /* basic cow extent size for file */ |
| 35 | |
| 36 | xfs_ictimestamp_t di_crtime; /* time created */ |
| 37 | }; |
| 38 | |
| 39 | /* |
| 40 | * Inode location information. Stored in the inode and passed to |
| 41 | * xfs_imap_to_bp() to get a buffer and dinode for a given inode. |
| 42 | */ |
| 43 | struct xfs_imap { |
| 44 | xfs_daddr_t im_blkno; /* starting BB of inode chunk */ |
| 45 | unsigned short im_len; /* length in BBs of inode chunk */ |
| 46 | unsigned short im_boffset; /* inode offset in block in bytes */ |
| 47 | }; |
| 48 | |
| 49 | int xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *, |
| 50 | struct xfs_imap *, struct xfs_dinode **, |
| 51 | struct xfs_buf **, uint, uint); |
| 52 | int xfs_iread(struct xfs_mount *, struct xfs_trans *, |
| 53 | struct xfs_inode *, uint); |
| 54 | void xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *); |
| 55 | void xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to, |
| 56 | xfs_lsn_t lsn); |
| 57 | void xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from); |
| 58 | void xfs_log_dinode_to_disk(struct xfs_log_dinode *from, |
| 59 | struct xfs_dinode *to); |
| 60 | |
| 61 | #if defined(DEBUG) |
| 62 | void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); |
| 63 | #else |
| 64 | #define xfs_inobp_check(mp, bp) |
| 65 | #endif /* DEBUG */ |
| 66 | |
| 67 | xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino, |
| 68 | struct xfs_dinode *dip); |
| 69 | xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp, |
| 70 | uint32_t extsize, uint16_t mode, uint16_t flags); |
| 71 | xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp, |
| 72 | uint32_t cowextsize, uint16_t mode, uint16_t flags, |
| 73 | uint64_t flags2); |
| 74 | |
| 75 | #endif /* __XFS_INODE_BUF_H__ */ |