Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/ufs/ufs/inode.h
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /* $NetBSD: inode.h,v 1.36 2003/08/07 16:34:44 agc Exp $ */ 2 3 /* 4 * Copyright (c) 1982, 1989, 1993 5 * The Regents of the University of California. All rights reserved. 6 * (c) UNIX System Laboratories, Inc. 7 * All or some portions of this file are derived from material licensed 8 * to the University of California by American Telephone and Telegraph 9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 10 * the permission of UNIX System Laboratories, Inc. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. Neither the name of the University nor the names of its contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 36 * @(#)inode.h 8.9 (Berkeley) 5/14/95 37 */ 38 39 #ifndef _UFS_UFS_INODE_H_ 40 #define _UFS_UFS_INODE_H_ 41 42 #include <sys/vnode.h> 43 #include <ufs/ufs/dinode.h> 44 #include <ufs/ufs/dir.h> 45 #include <ufs/ufs/quota.h> 46 #include <ufs/ext2fs/ext2fs_dinode.h> 47 #include <miscfs/genfs/genfs_node.h> 48 49 /* 50 * Per-filesystem inode extensions. 51 */ 52 struct ext2fs_inode_ext { 53 daddr_t ext2fs_last_lblk; /* last logical block allocated */ 54 daddr_t ext2fs_last_blk; /* last block allocated on disk */ 55 }; 56 57 struct lfs_inode_ext; 58 59 /* 60 * The inode is used to describe each active (or recently active) file in the 61 * UFS filesystem. It is composed of two types of information. The first part 62 * is the information that is needed only while the file is active (such as 63 * the identity of the file and linkage to speed its lookup). The second part 64 * is the permanent meta-data associated with the file which is read in 65 * from the permanent dinode from long term storage when the file becomes 66 * active, and is put back when the file is no longer being used. 67 */ 68 struct inode { 69 struct genfs_node i_gnode; 70 LIST_ENTRY(inode) i_hash;/* Hash chain. */ 71 struct vnode *i_vnode; /* Vnode associated with this inode. */ 72 struct ufsmount *i_ump; /* Mount point associated with this inode. */ 73 struct vnode *i_devvp; /* Vnode for block I/O. */ 74 u_int32_t i_flag; /* flags, see below */ 75 dev_t i_dev; /* Device associated with the inode. */ 76 ino_t i_number; /* The identity of the inode. */ 77 78 union { /* Associated filesystem. */ 79 struct fs *fs; /* FFS */ 80 struct lfs *lfs; /* LFS */ 81 struct m_ext2fs *e2fs; /* EXT2FS */ 82 } inode_u; 83 #define i_fs inode_u.fs 84 #define i_lfs inode_u.lfs 85 #define i_e2fs inode_u.e2fs 86 87 struct buflists i_pcbufhd; /* softdep pagecache buffer head */ 88 struct dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */ 89 u_quad_t i_modrev; /* Revision level for NFS lease. */ 90 struct lockf *i_lockf;/* Head of byte-level lock list. */ 91 92 /* 93 * Side effects; used during directory lookup. 94 */ 95 int32_t i_count; /* Size of free slot in directory. */ 96 doff_t i_endoff; /* End of useful stuff in directory. */ 97 doff_t i_diroff; /* Offset in dir, where we found last entry. */ 98 doff_t i_offset; /* Offset of free space in directory. */ 99 u_int32_t i_reclen; /* Size of found directory entry. */ 100 int i_ffs_effnlink; /* i_nlink when I/O completes */ 101 /* 102 * Inode extensions 103 */ 104 union { 105 /* Other extensions could go here... */ 106 struct ext2fs_inode_ext e2fs; 107 struct lfs_inode_ext *lfs; 108 } inode_ext; 109 #define i_e2fs_last_lblk inode_ext.e2fs.ext2fs_last_lblk 110 #define i_e2fs_last_blk inode_ext.e2fs.ext2fs_last_blk 111 /* 112 * Copies from the on-disk dinode itself. 113 * 114 * These fields are currently only used by FFS and LFS, 115 * do NOT use them with ext2fs. 116 */ 117 u_int16_t i_mode; /* IFMT, permissions; see below. */ 118 int16_t i_nlink; /* File link count. */ 119 u_int64_t i_size; /* File byte count. */ 120 u_int32_t i_flags; /* Status flags (chflags). */ 121 int32_t i_gen; /* Generation number. */ 122 u_int32_t i_uid; /* File owner. */ 123 u_int32_t i_gid; /* File group. */ 124 125 /* 126 * The on-disk dinode itself. 127 */ 128 union { 129 struct ufs1_dinode *ffs1_din; /* 128 bytes of the on-disk dinode. */ 130 struct ufs2_dinode *ffs2_din; 131 struct ext2fs_dinode *e2fs_din; /* 128 bytes of the on-disk 132 dinode. */ 133 } i_din; 134 }; 135 136 #define i_ffs1_atime i_din.ffs1_din->di_atime 137 #define i_ffs1_atimensec i_din.ffs1_din->di_atimensec 138 #define i_ffs1_blocks i_din.ffs1_din->di_blocks 139 #define i_ffs1_ctime i_din.ffs1_din->di_ctime 140 #define i_ffs1_ctimensec i_din.ffs1_din->di_ctimensec 141 #define i_ffs1_db i_din.ffs1_din->di_db 142 #define i_ffs1_flags i_din.ffs1_din->di_flags 143 #define i_ffs1_gen i_din.ffs1_din->di_gen 144 #define i_ffs1_gid i_din.ffs1_din->di_gid 145 #define i_ffs1_ib i_din.ffs1_din->di_ib 146 #define i_ffs1_mode i_din.ffs1_din->di_mode 147 #define i_ffs1_mtime i_din.ffs1_din->di_mtime 148 #define i_ffs1_mtimensec i_din.ffs1_din->di_mtimensec 149 #define i_ffs1_nlink i_din.ffs1_din->di_nlink 150 #define i_ffs1_rdev i_din.ffs1_din->di_rdev 151 #define i_ffs1_size i_din.ffs1_din->di_size 152 #define i_ffs1_uid i_din.ffs1_din->di_uid 153 #define i_ffs1_ouid i_din.ffs1_din->di_u.oldids[0] 154 #define i_ffs1_ogid i_din.ffs1_din->di_u.oldids[1] 155 156 #define i_ffs2_atime i_din.ffs2_din->di_atime 157 #define i_ffs2_atimensec i_din.ffs2_din->di_atimensec 158 #define i_ffs2_birthtime i_din.ffs2_din->di_birthtime 159 #define i_ffs2_birthnsec i_din.ffs2_din->di_birthnsec 160 #define i_ffs2_blocks i_din.ffs2_din->di_blocks 161 #define i_ffs2_blksize i_din.ffs2_din->di_blksize 162 #define i_ffs2_ctime i_din.ffs2_din->di_ctime 163 #define i_ffs2_ctimensec i_din.ffs2_din->di_ctimensec 164 #define i_ffs2_db i_din.ffs2_din->di_db 165 #define i_ffs2_flags i_din.ffs2_din->di_flags 166 #define i_ffs2_gen i_din.ffs2_din->di_gen 167 #define i_ffs2_gid i_din.ffs2_din->di_gid 168 #define i_ffs2_ib i_din.ffs2_din->di_ib 169 #define i_ffs2_mode i_din.ffs2_din->di_mode 170 #define i_ffs2_mtime i_din.ffs2_din->di_mtime 171 #define i_ffs2_mtimensec i_din.ffs2_din->di_mtimensec 172 #define i_ffs2_nlink i_din.ffs2_din->di_nlink 173 #define i_ffs2_rdev i_din.ffs2_din->di_rdev 174 #define i_ffs2_size i_din.ffs2_din->di_size 175 #define i_ffs2_uid i_din.ffs2_din->di_uid 176 #define i_ffs2_kernflags i_din.ffs2_din->di_kernflags 177 #define i_ffs2_extsize i_din.ffs2_din->di_extsize 178 #define i_ffs2_extb i_din.ffs2_din->di_extb 179 180 #define i_e2fs_mode i_din.e2fs_din->e2di_mode 181 #define i_e2fs_uid i_din.e2fs_din->e2di_uid 182 #define i_e2fs_size i_din.e2fs_din->e2di_size 183 #define i_e2fs_atime i_din.e2fs_din->e2di_atime 184 #define i_e2fs_ctime i_din.e2fs_din->e2di_ctime 185 #define i_e2fs_mtime i_din.e2fs_din->e2di_mtime 186 #define i_e2fs_dtime i_din.e2fs_din->e2di_dtime 187 #define i_e2fs_gid i_din.e2fs_din->e2di_gid 188 #define i_e2fs_nlink i_din.e2fs_din->e2di_nlink 189 #define i_e2fs_nblock i_din.e2fs_din->e2di_nblock 190 #define i_e2fs_flags i_din.e2fs_din->e2di_flags 191 #define i_e2fs_blocks i_din.e2fs_din->e2di_blocks 192 #define i_e2fs_gen i_din.e2fs_din->e2di_gen 193 #define i_e2fs_facl i_din.e2fs_din->e2di_facl 194 #define i_e2fs_dacl i_din.e2fs_din->e2di_dacl 195 #define i_e2fs_faddr i_din.e2fs_din->e2di_faddr 196 #define i_e2fs_nfrag i_din.e2fs_din->e2di_nfrag 197 #define i_e2fs_fsize i_din.e2fs_din->e2di_fsize 198 #define i_e2fs_rdev i_din.e2fs_din->e2di_rdev 199 200 /* These flags are kept in i_flag. */ 201 #define IN_ACCESS 0x0001 /* Access time update request. */ 202 #define IN_CHANGE 0x0002 /* Inode change time update request. */ 203 #define IN_UPDATE 0x0004 /* Modification time update request. */ 204 #define IN_MODIFIED 0x0008 /* Inode has been modified. */ 205 #define IN_ACCESSED 0x0010 /* Inode has been accessed. */ 206 #define IN_RENAME 0x0020 /* Inode is being renamed. */ 207 #define IN_SHLOCK 0x0040 /* File has shared lock. */ 208 #define IN_EXLOCK 0x0080 /* File has exclusive lock. */ 209 #define IN_CLEANING 0x0100 /* LFS: file is being cleaned */ 210 #define IN_ADIROP 0x0200 /* LFS: dirop in progress */ 211 #define IN_SPACECOUNTED 0x0400 /* Blocks to be freed in free count. */ 212 #define IN_PAGING 0x1000 /* LFS: file is on paging queue */ 213 214 #if defined(_KERNEL) 215 216 /* 217 * The DIP macro is used to access fields in the dinode that are 218 * not cached in the inode itself. 219 */ 220 #define DIP(ip, field) \ 221 (((ip)->i_ump->um_fstype == UFS1) ? \ 222 (ip)->i_ffs1_##field : (ip)->i_ffs2_##field) 223 224 #define DIP_ASSIGN(ip, field, value) \ 225 do { \ 226 if ((ip)->i_ump->um_fstype == UFS1) \ 227 (ip)->i_ffs1_##field = (value); \ 228 else \ 229 (ip)->i_ffs2_##field = (value); \ 230 } while(0) 231 232 #define DIP_ADD(ip, field, value) \ 233 do { \ 234 if ((ip)->i_ump->um_fstype == UFS1) \ 235 (ip)->i_ffs1_##field += (value); \ 236 else \ 237 (ip)->i_ffs2_##field += (value); \ 238 } while(0) 239 240 #define SHORTLINK(ip) \ 241 (((ip)->i_ump->um_fstype == UFS1) ? \ 242 (caddr_t)(ip)->i_ffs1_db : (caddr_t)(ip)->i_ffs2_db) 243 244 245 /* 246 * Structure used to pass around logical block paths generated by 247 * ufs_getlbns and used by truncate and bmap code. 248 */ 249 struct indir { 250 daddr_t in_lbn; /* Logical block number. */ 251 int in_off; /* Offset in buffer. */ 252 int in_exists; /* Flag if the block exists. */ 253 }; 254 255 /* Convert between inode pointers and vnode pointers. */ 256 #define VTOI(vp) ((struct inode *)(vp)->v_data) 257 #define ITOV(ip) ((ip)->i_vnode) 258 259 #define FFS_ITIMES(ip, acc, mod, cre) { \ 260 if ((ip)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) { \ 261 if ((ip)->i_flag & IN_ACCESS) { \ 262 DIP_ASSIGN(ip, atime, (acc)->tv_sec); \ 263 DIP_ASSIGN(ip, atimensec, (acc)->tv_nsec); \ 264 (ip)->i_flag |= IN_ACCESSED; \ 265 } \ 266 if ((ip)->i_flag & IN_UPDATE) { \ 267 DIP_ASSIGN(ip, mtime, (mod)->tv_sec); \ 268 DIP_ASSIGN(ip, mtimensec, (mod)->tv_nsec); \ 269 (ip)->i_modrev++; \ 270 (ip)->i_flag |= IN_MODIFIED; \ 271 } \ 272 if ((ip)->i_flag & IN_CHANGE) { \ 273 DIP_ASSIGN(ip, ctime, (cre)->tv_sec); \ 274 DIP_ASSIGN(ip, ctimensec, (cre)->tv_nsec); \ 275 (ip)->i_flag |= IN_MODIFIED; \ 276 } \ 277 (ip)->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE); \ 278 } \ 279 } 280 281 #define EXT2FS_ITIMES(ip, acc, mod, cre) { \ 282 if ((ip)->i_flag & (IN_ACCESS | IN_CHANGE | IN_UPDATE)) { \ 283 if ((ip)->i_flag & IN_ACCESS) { \ 284 (ip)->i_e2fs_atime = (acc)->tv_sec; \ 285 (ip)->i_flag |= IN_ACCESSED; \ 286 } \ 287 if ((ip)->i_flag & IN_UPDATE) { \ 288 (ip)->i_e2fs_mtime = (mod)->tv_sec; \ 289 (ip)->i_modrev++; \ 290 (ip)->i_flag |= IN_MODIFIED; \ 291 } \ 292 if ((ip)->i_flag & IN_CHANGE) { \ 293 (ip)->i_e2fs_ctime = (cre)->tv_sec; \ 294 (ip)->i_flag |= IN_MODIFIED; \ 295 } \ 296 (ip)->i_flag &= ~(IN_ACCESS | IN_CHANGE | IN_UPDATE); \ 297 } \ 298 } 299 300 #define ITIMES(ip, acc, mod, cre) { \ 301 if (IS_EXT2_VNODE((ip)->i_vnode)) \ 302 EXT2FS_ITIMES(ip, acc, mod, cre) \ 303 else \ 304 FFS_ITIMES(ip, acc, mod, cre) \ 305 } 306 307 /* Determine if soft dependencies are being done */ 308 #define DOINGSOFTDEP(vp) ((vp)->v_mount->mnt_flag & MNT_SOFTDEP) 309 310 /* This overlays the fid structure (see mount.h). */ 311 struct ufid { 312 u_int16_t ufid_len; /* Length of structure. */ 313 u_int16_t ufid_pad; /* Force 32-bit alignment. */ 314 ino_t ufid_ino; /* File number (ino). */ 315 int32_t ufid_gen; /* Generation number. */ 316 }; 317 #endif /* _KERNEL */ 318 319 #endif /* !_UFS_UFS_INODE_H_ */
Cache object: f1149422e068e07361fa94ffd43b756d
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]