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 uint16_t di_flushiter; /* incremented on flush */ 20 uint32_t di_projid; /* owner's project id */ 21 xfs_fsize_t di_size; /* number of bytes in file */ 22 xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ 23 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ 24 uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ 25 uint32_t di_dmevmask; /* DMIG event mask */ 26 uint16_t di_dmstate; /* DMIG state info */ 27 uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ 28 29 uint64_t di_flags2; /* more random flags */ 30 uint32_t di_cowextsize; /* basic cow extent size for file */ 31 32 struct timespec64 di_crtime; /* time created */ 33 }; 34 35 /* 36 * Inode location information. Stored in the inode and passed to 37 * xfs_imap_to_bp() to get a buffer and dinode for a given inode. 38 */ 39 struct xfs_imap { 40 xfs_daddr_t im_blkno; /* starting BB of inode chunk */ 41 unsigned short im_len; /* length in BBs of inode chunk */ 42 unsigned short im_boffset; /* inode offset in block in bytes */ 43 }; 44 45 int xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *, 46 struct xfs_imap *, struct xfs_dinode **, 47 struct xfs_buf **, uint); 48 void xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *); 49 void xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to, 50 xfs_lsn_t lsn); 51 int xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from); 52 void xfs_log_dinode_to_disk(struct xfs_log_dinode *from, 53 struct xfs_dinode *to); 54 55 xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino, 56 struct xfs_dinode *dip); 57 xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp, 58 uint32_t extsize, uint16_t mode, uint16_t flags); 59 xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp, 60 uint32_t cowextsize, uint16_t mode, uint16_t flags, 61 uint64_t flags2); 62 63 #endif /* __XFS_INODE_BUF_H__ */ 64