1 /* 2 * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. 3 * All Rights Reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 * GNU General Public License for more details. 13 * 14 * You should have received a copy of the GNU General Public License 15 * along with this program; if not, write the Free Software Foundation, 16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 #ifndef __XFS_INODE_BUF_H__ 19 #define __XFS_INODE_BUF_H__ 20 21 struct xfs_inode; 22 struct xfs_dinode; 23 24 /* 25 * In memory representation of the XFS inode. This is held in the in-core struct 26 * xfs_inode and represents the current on disk values but the structure is not 27 * in on-disk format. That is, this structure is always translated to on-disk 28 * format specific structures at the appropriate time. 29 */ 30 struct xfs_icdinode { 31 int8_t di_version; /* inode version */ 32 int8_t di_format; /* format of di_c data */ 33 uint16_t di_flushiter; /* incremented on flush */ 34 uint32_t di_uid; /* owner's user id */ 35 uint32_t di_gid; /* owner's group id */ 36 uint16_t di_projid_lo; /* lower part of owner's project id */ 37 uint16_t di_projid_hi; /* higher part of owner's project id */ 38 xfs_fsize_t di_size; /* number of bytes in file */ 39 xfs_rfsblock_t di_nblocks; /* # of direct & btree blocks used */ 40 xfs_extlen_t di_extsize; /* basic/minimum extent size for file */ 41 xfs_extnum_t di_nextents; /* number of extents in data fork */ 42 xfs_aextnum_t di_anextents; /* number of extents in attribute fork*/ 43 uint8_t di_forkoff; /* attr fork offs, <<3 for 64b align */ 44 int8_t di_aformat; /* format of attr fork's data */ 45 uint32_t di_dmevmask; /* DMIG event mask */ 46 uint16_t di_dmstate; /* DMIG state info */ 47 uint16_t di_flags; /* random flags, XFS_DIFLAG_... */ 48 49 uint64_t di_flags2; /* more random flags */ 50 uint32_t di_cowextsize; /* basic cow extent size for file */ 51 52 xfs_ictimestamp_t di_crtime; /* time created */ 53 }; 54 55 /* 56 * Inode location information. Stored in the inode and passed to 57 * xfs_imap_to_bp() to get a buffer and dinode for a given inode. 58 */ 59 struct xfs_imap { 60 xfs_daddr_t im_blkno; /* starting BB of inode chunk */ 61 unsigned short im_len; /* length in BBs of inode chunk */ 62 unsigned short im_boffset; /* inode offset in block in bytes */ 63 }; 64 65 int xfs_imap_to_bp(struct xfs_mount *, struct xfs_trans *, 66 struct xfs_imap *, struct xfs_dinode **, 67 struct xfs_buf **, uint, uint); 68 int xfs_iread(struct xfs_mount *, struct xfs_trans *, 69 struct xfs_inode *, uint); 70 void xfs_dinode_calc_crc(struct xfs_mount *, struct xfs_dinode *); 71 void xfs_inode_to_disk(struct xfs_inode *ip, struct xfs_dinode *to, 72 xfs_lsn_t lsn); 73 void xfs_inode_from_disk(struct xfs_inode *ip, struct xfs_dinode *from); 74 void xfs_log_dinode_to_disk(struct xfs_log_dinode *from, 75 struct xfs_dinode *to); 76 77 bool xfs_dinode_good_version(struct xfs_mount *mp, __u8 version); 78 79 #if defined(DEBUG) 80 void xfs_inobp_check(struct xfs_mount *, struct xfs_buf *); 81 #else 82 #define xfs_inobp_check(mp, bp) 83 #endif /* DEBUG */ 84 85 xfs_failaddr_t xfs_dinode_verify(struct xfs_mount *mp, xfs_ino_t ino, 86 struct xfs_dinode *dip); 87 xfs_failaddr_t xfs_inode_validate_extsize(struct xfs_mount *mp, 88 uint32_t extsize, uint16_t mode, uint16_t flags); 89 xfs_failaddr_t xfs_inode_validate_cowextsize(struct xfs_mount *mp, 90 uint32_t cowextsize, uint16_t mode, uint16_t flags, 91 uint64_t flags2); 92 93 #endif /* __XFS_INODE_BUF_H__ */ 94