ulfs_inode.h revision 1.1
1 /* $NetBSD: ulfs_inode.h,v 1.1 2013/06/06 00:40:55 dholland Exp $ */ 2 /* from NetBSD: inode.h,v 1.64 2012/11/19 00:36:21 jakllsch Exp */ 3 4 /* 5 * Copyright (c) 1982, 1989, 1993 6 * The Regents of the University of California. All rights reserved. 7 * (c) UNIX System Laboratories, Inc. 8 * All or some portions of this file are derived from material licensed 9 * to the University of California by American Telephone and Telegraph 10 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 11 * the permission of UNIX System Laboratories, Inc. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. Neither the name of the University nor the names of its contributors 22 * may be used to endorse or promote products derived from this software 23 * without specific prior written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35 * SUCH DAMAGE. 36 * 37 * @(#)inode.h 8.9 (Berkeley) 5/14/95 38 */ 39 40 #ifndef _UFS_UFS_INODE_H_ 41 #define _UFS_UFS_INODE_H_ 42 43 #include <sys/vnode.h> 44 #include <ufs/ufs/dinode.h> 45 #include <ufs/ufs/dir.h> 46 #include <ufs/ufs/quota.h> 47 #include <ufs/ext2fs/ext2fs_dinode.h> 48 #include <miscfs/genfs/genfs_node.h> 49 50 /* 51 * Lookup result state (other than the result inode). This is 52 * currently stashed in the vnode between VOP_LOOKUP and directory 53 * operation VOPs, which is gross. 54 * 55 * XXX ulr_diroff is a lookup hint from the previos call of VOP_LOOKUP. 56 * probably it should not be here. 57 */ 58 struct ufs_lookup_results { 59 int32_t ulr_count; /* Size of free slot in directory. */ 60 doff_t ulr_endoff; /* End of useful stuff in directory. */ 61 doff_t ulr_diroff; /* Offset in dir, where we found last entry. */ 62 doff_t ulr_offset; /* Offset of free space in directory. */ 63 u_int32_t ulr_reclen; /* Size of found directory entry. */ 64 }; 65 66 /* notyet XXX */ 67 #define UFS_CHECK_CRAPCOUNTER(dp) ((void)(dp)->i_crapcounter) 68 69 /* 70 * Per-filesystem inode extensions. 71 */ 72 struct ffs_inode_ext { 73 daddr_t *ffs_snapblklist; /* Collect expunged snapshot blocks. */ 74 /* follow two fields are used by contiguous allocation code only. */ 75 daddr_t ffs_first_data_blk; /* first data block on disk. */ 76 daddr_t ffs_first_indir_blk; /* first indirect block on disk. */ 77 }; 78 79 struct ext2fs_inode_ext { 80 daddr_t ext2fs_last_lblk; /* last logical block allocated */ 81 daddr_t ext2fs_last_blk; /* last block allocated on disk */ 82 }; 83 84 struct lfs_inode_ext; 85 86 /* 87 * The inode is used to describe each active (or recently active) file in the 88 * UFS filesystem. It is composed of two types of information. The first part 89 * is the information that is needed only while the file is active (such as 90 * the identity of the file and linkage to speed its lookup). The second part 91 * is the permanent meta-data associated with the file which is read in 92 * from the permanent dinode from long term storage when the file becomes 93 * active, and is put back when the file is no longer being used. 94 */ 95 struct inode { 96 struct genfs_node i_gnode; 97 LIST_ENTRY(inode) i_hash;/* Hash chain. */ 98 TAILQ_ENTRY(inode) i_nextsnap; /* snapshot file list. */ 99 struct vnode *i_vnode; /* Vnode associated with this inode. */ 100 struct ufsmount *i_ump; /* Mount point associated with this inode. */ 101 struct vnode *i_devvp; /* Vnode for block I/O. */ 102 u_int32_t i_flag; /* flags, see below */ 103 dev_t i_dev; /* Device associated with the inode. */ 104 ino_t i_number; /* The identity of the inode. */ 105 106 union { /* Associated filesystem. */ 107 struct fs *fs; /* FFS */ 108 struct lfs *lfs; /* LFS */ 109 struct m_ext2fs *e2fs; /* EXT2FS */ 110 } inode_u; 111 #define i_fs inode_u.fs 112 #define i_lfs inode_u.lfs 113 #define i_e2fs inode_u.e2fs 114 115 void *i_unused1; /* Unused. */ 116 struct dquot *i_dquot[MAXQUOTAS]; /* Dquot structures. */ 117 u_quad_t i_modrev; /* Revision level for NFS lease. */ 118 struct lockf *i_lockf;/* Head of byte-level lock list. */ 119 120 /* 121 * Side effects; used during (and after) directory lookup. 122 * XXX should not be here. 123 */ 124 struct ufs_lookup_results i_crap; 125 unsigned i_crapcounter; /* serial number for i_crap */ 126 127 /* 128 * Inode extensions 129 */ 130 union { 131 /* Other extensions could go here... */ 132 struct ffs_inode_ext ffs; 133 struct ext2fs_inode_ext e2fs; 134 struct lfs_inode_ext *lfs; 135 } inode_ext; 136 #define i_snapblklist inode_ext.ffs.ffs_snapblklist 137 #define i_ffs_first_data_blk inode_ext.ffs.ffs_first_data_blk 138 #define i_ffs_first_indir_blk inode_ext.ffs.ffs_first_indir_blk 139 #define i_e2fs_last_lblk inode_ext.e2fs.ext2fs_last_lblk 140 #define i_e2fs_last_blk inode_ext.e2fs.ext2fs_last_blk 141 /* 142 * Copies from the on-disk dinode itself. 143 * 144 * These fields are currently only used by FFS and LFS, 145 * do NOT use them with ext2fs. 146 */ 147 u_int16_t i_mode; /* IFMT, permissions; see below. */ 148 int16_t i_nlink; /* File link count. */ 149 u_int64_t i_size; /* File byte count. */ 150 u_int32_t i_flags; /* Status flags (chflags). */ 151 int32_t i_gen; /* Generation number. */ 152 u_int32_t i_uid; /* File owner. */ 153 u_int32_t i_gid; /* File group. */ 154 u_int16_t i_omode; /* Old mode, for ufs_reclaim. */ 155 156 struct dirhash *i_dirhash; /* Hashing for large directories */ 157 158 /* 159 * The on-disk dinode itself. 160 */ 161 union { 162 struct ufs1_dinode *ffs1_din; /* 128 bytes of the on-disk dinode. */ 163 struct ufs2_dinode *ffs2_din; 164 struct ext2fs_dinode *e2fs_din; /* 128 bytes of the on-disk 165 dinode. */ 166 } i_din; 167 }; 168 169 #define i_ffs1_atime i_din.ffs1_din->di_atime 170 #define i_ffs1_atimensec i_din.ffs1_din->di_atimensec 171 #define i_ffs1_blocks i_din.ffs1_din->di_blocks 172 #define i_ffs1_ctime i_din.ffs1_din->di_ctime 173 #define i_ffs1_ctimensec i_din.ffs1_din->di_ctimensec 174 #define i_ffs1_db i_din.ffs1_din->di_db 175 #define i_ffs1_flags i_din.ffs1_din->di_flags 176 #define i_ffs1_gen i_din.ffs1_din->di_gen 177 #define i_ffs1_gid i_din.ffs1_din->di_gid 178 #define i_ffs1_ib i_din.ffs1_din->di_ib 179 #define i_ffs1_mode i_din.ffs1_din->di_mode 180 #define i_ffs1_mtime i_din.ffs1_din->di_mtime 181 #define i_ffs1_mtimensec i_din.ffs1_din->di_mtimensec 182 #define i_ffs1_nlink i_din.ffs1_din->di_nlink 183 #define i_ffs1_rdev i_din.ffs1_din->di_rdev 184 #define i_ffs1_size i_din.ffs1_din->di_size 185 #define i_ffs1_uid i_din.ffs1_din->di_uid 186 #define i_ffs1_ouid i_din.ffs1_din->di_u.oldids[0] 187 #define i_ffs1_ogid i_din.ffs1_din->di_u.oldids[1] 188 189 #define i_ffs2_atime i_din.ffs2_din->di_atime 190 #define i_ffs2_atimensec i_din.ffs2_din->di_atimensec 191 #define i_ffs2_birthtime i_din.ffs2_din->di_birthtime 192 #define i_ffs2_birthnsec i_din.ffs2_din->di_birthnsec 193 #define i_ffs2_blocks i_din.ffs2_din->di_blocks 194 #define i_ffs2_blksize i_din.ffs2_din->di_blksize 195 #define i_ffs2_ctime i_din.ffs2_din->di_ctime 196 #define i_ffs2_ctimensec i_din.ffs2_din->di_ctimensec 197 #define i_ffs2_db i_din.ffs2_din->di_db 198 #define i_ffs2_flags i_din.ffs2_din->di_flags 199 #define i_ffs2_gen i_din.ffs2_din->di_gen 200 #define i_ffs2_gid i_din.ffs2_din->di_gid 201 #define i_ffs2_ib i_din.ffs2_din->di_ib 202 #define i_ffs2_mode i_din.ffs2_din->di_mode 203 #define i_ffs2_mtime i_din.ffs2_din->di_mtime 204 #define i_ffs2_mtimensec i_din.ffs2_din->di_mtimensec 205 #define i_ffs2_nlink i_din.ffs2_din->di_nlink 206 #define i_ffs2_rdev i_din.ffs2_din->di_rdev 207 #define i_ffs2_size i_din.ffs2_din->di_size 208 #define i_ffs2_uid i_din.ffs2_din->di_uid 209 #define i_ffs2_kernflags i_din.ffs2_din->di_kernflags 210 #define i_ffs2_extsize i_din.ffs2_din->di_extsize 211 #define i_ffs2_extb i_din.ffs2_din->di_extb 212 213 #define i_e2fs_mode i_din.e2fs_din->e2di_mode 214 #define i_e2fs_uid i_din.e2fs_din->e2di_uid 215 #define i_e2fs_size i_din.e2fs_din->e2di_size 216 #define i_e2fs_atime i_din.e2fs_din->e2di_atime 217 #define i_e2fs_ctime i_din.e2fs_din->e2di_ctime 218 #define i_e2fs_mtime i_din.e2fs_din->e2di_mtime 219 #define i_e2fs_dtime i_din.e2fs_din->e2di_dtime 220 #define i_e2fs_gid i_din.e2fs_din->e2di_gid 221 #define i_e2fs_nlink i_din.e2fs_din->e2di_nlink 222 #define i_e2fs_nblock i_din.e2fs_din->e2di_nblock 223 #define i_e2fs_flags i_din.e2fs_din->e2di_flags 224 #define i_e2fs_version i_din.e2fs_din->e2di_version 225 #define i_e2fs_blocks i_din.e2fs_din->e2di_blocks 226 #define i_e2fs_rdev i_din.e2fs_din->e2di_rdev 227 #define i_e2fs_gen i_din.e2fs_din->e2di_gen 228 #define i_e2fs_facl i_din.e2fs_din->e2di_facl 229 #define i_e2fs_dacl i_din.e2fs_din->e2di_dacl 230 #define i_e2fs_faddr i_din.e2fs_din->e2di_faddr 231 #define i_e2fs_nblock_high i_din.e2fs_din->e2di_nblock_high 232 #define i_e2fs_facl_high i_din.e2fs_din->e2di_facl_high 233 #define i_e2fs_uid_high i_din.e2fs_din->e2di_uid_high 234 #define i_e2fs_gid_high i_din.e2fs_din->e2di_gid_high 235 236 /* These flags are kept in i_flag. */ 237 #define IN_ACCESS 0x0001 /* Access time update request. */ 238 #define IN_CHANGE 0x0002 /* Inode change time update request. */ 239 #define IN_UPDATE 0x0004 /* Inode was written to; update mtime. */ 240 #define IN_MODIFY 0x2000 /* Modification time update request. */ 241 #define IN_MODIFIED 0x0008 /* Inode has been modified. */ 242 #define IN_ACCESSED 0x0010 /* Inode has been accessed. */ 243 /* #define IN_UNUSED 0x0020 */ /* unused, was IN_RENAME */ 244 #define IN_SHLOCK 0x0040 /* File has shared lock. */ 245 #define IN_EXLOCK 0x0080 /* File has exclusive lock. */ 246 #define IN_CLEANING 0x0100 /* LFS: file is being cleaned */ 247 #define IN_ADIROP 0x0200 /* LFS: dirop in progress */ 248 #define IN_SPACECOUNTED 0x0400 /* Blocks to be freed in free count. */ 249 #define IN_PAGING 0x1000 /* LFS: file is on paging queue */ 250 #define IN_CDIROP 0x4000 /* LFS: dirop completed pending i/o */ 251 #if defined(_KERNEL) 252 253 /* 254 * The DIP macro is used to access fields in the dinode that are 255 * not cached in the inode itself. 256 */ 257 #define DIP(ip, field) \ 258 (((ip)->i_ump->um_fstype == UFS1) ? \ 259 (ip)->i_ffs1_##field : (ip)->i_ffs2_##field) 260 261 #define DIP_ASSIGN(ip, field, value) \ 262 do { \ 263 if ((ip)->i_ump->um_fstype == UFS1) \ 264 (ip)->i_ffs1_##field = (value); \ 265 else \ 266 (ip)->i_ffs2_##field = (value); \ 267 } while(0) 268 269 #define DIP_ADD(ip, field, value) \ 270 do { \ 271 if ((ip)->i_ump->um_fstype == UFS1) \ 272 (ip)->i_ffs1_##field += (value); \ 273 else \ 274 (ip)->i_ffs2_##field += (value); \ 275 } while(0) 276 277 #define SHORTLINK(ip) \ 278 (((ip)->i_ump->um_fstype == UFS1) ? \ 279 (void *)(ip)->i_ffs1_db : (void *)(ip)->i_ffs2_db) 280 281 282 /* 283 * Structure used to pass around logical block paths generated by 284 * ufs_getlbns and used by truncate and bmap code. 285 */ 286 struct indir { 287 daddr_t in_lbn; /* Logical block number. */ 288 int in_off; /* Offset in buffer. */ 289 int in_exists; /* Flag if the block exists. */ 290 }; 291 292 /* Convert between inode pointers and vnode pointers. */ 293 #define VTOI(vp) ((struct inode *)(vp)->v_data) 294 #define ITOV(ip) ((ip)->i_vnode) 295 296 /* This overlays the fid structure (see fstypes.h). */ 297 struct ufid { 298 u_int16_t ufid_len; /* Length of structure. */ 299 u_int16_t ufid_pad; /* Force 32-bit alignment. */ 300 u_int32_t ufid_ino; /* File number (ino). */ 301 int32_t ufid_gen; /* Generation number. */ 302 }; 303 #endif /* _KERNEL */ 304 305 #endif /* !_UFS_UFS_INODE_H_ */ 306
Indexes created Tue Sep 30 10:09:55 GMT 2025