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_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 uint32_t di_projid; /* owner's project id */ 25 xfs_fsize_t di_size; /* number of bytes in file */ 26 xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ 27 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ 28 xfs_extnum_t di_nextents; /* number of extents in data fork */ 29 xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ 30 uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ 31 int8_t di_aformat; /* format of attr fork's data */ 32 uint32_t di_dmevmask; /* DMIG event mask */ 33 uint16_t di_dmstate; /* DMIG state info */ 34 uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ 35 36 uint64_t di_flags2; /* more random flags */ 37 uint32_t di_cowextsize; /* basic cow extent size for file */ 38 39 struct timespec64 di_crtime; /* time created */ 40 }; 41 42 /* 43 * Inode location information. Stored in the inode and passed to 44 * xfs_imap_to_bp() to get a buffer and dinode for a given inode. 45 */ 46 struct xfs_imap { 47 xfs_daddr_t im_blkno; /* starting BB of inode chunk */ 48 unsigned short im_len; /* length in BBs of inode chunk */ 49 unsigned short im_boffset; /* inode offset in block in bytes */ 50 }; 51 52 int xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *, 53 struct xfs_imap *, struct xfs_dinode **, 54 struct xfs_buf **, uint, uint); 55 int xfs_iread(struct xfs_mount *, struct xfs_trans *, 56 struct xfs_inode *, uint); 57 void xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *); 58 void xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to, 59 xfs_lsn_t lsn); 60 void xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from); 61 void xfs_log_dinode_to_disk(struct xfs_log_dinode *from, 62 struct xfs_dinode *to); 63 64 bool xfs_dinode_good_version(struct xfs_mount *mp, __u8 version); 65 66 #if defined(DEBUG) 67 void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); 68 #else 69 #define xfs_inobp_check(mp, bp) 70 #endif /* DEBUG */ 71 72 xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino, 73 struct xfs_dinode *dip); 74 xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp, 75 uint32_t extsize, uint16_t mode, uint16_t flags); 76 xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp, 77 uint32_t cowextsize, uint16_t mode, uint16_t flags, 78 uint64_t flags2); 79 80 #endif /* __XFS_INODE_BUF_H__ */ 81