lfs_inode.h revision 1.5.2.4
1 1.5.2.2 tls /* $NetBSD: lfs_inode.h,v 1.5.2.4 2017/12/03 11:39:22 jdolecek Exp $ */ 2 1.5.2.2 tls /* from NetBSD: ulfs_inode.h,v 1.5 2013/06/06 00:51:50 dholland Exp */ 3 1.5.2.4 jdolecek /* from NetBSD: inode.h,v 1.72 2016/06/03 15:36:03 christos Exp */ 4 1.5.2.2 tls 5 1.5.2.2 tls /* 6 1.5.2.2 tls * Copyright (c) 1982, 1989, 1993 7 1.5.2.2 tls * The Regents of the University of California. All rights reserved. 8 1.5.2.2 tls * (c) UNIX System Laboratories, Inc. 9 1.5.2.2 tls * All or some portions of this file are derived from material licensed 10 1.5.2.2 tls * to the University of California by American Telephone and Telegraph 11 1.5.2.2 tls * Co. or Unix System Laboratories, Inc. and are reproduced herein with 12 1.5.2.2 tls * the permission of UNIX System Laboratories, Inc. 13 1.5.2.2 tls * 14 1.5.2.2 tls * Redistribution and use in source and binary forms, with or without 15 1.5.2.2 tls * modification, are permitted provided that the following conditions 16 1.5.2.2 tls * are met: 17 1.5.2.2 tls * 1. Redistributions of source code must retain the above copyright 18 1.5.2.2 tls * notice, this list of conditions and the following disclaimer. 19 1.5.2.2 tls * 2. Redistributions in binary form must reproduce the above copyright 20 1.5.2.2 tls * notice, this list of conditions and the following disclaimer in the 21 1.5.2.2 tls * documentation and/or other materials provided with the distribution. 22 1.5.2.2 tls * 3. Neither the name of the University nor the names of its contributors 23 1.5.2.2 tls * may be used to endorse or promote products derived from this software 24 1.5.2.2 tls * without specific prior written permission. 25 1.5.2.2 tls * 26 1.5.2.2 tls * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 1.5.2.2 tls * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 1.5.2.2 tls * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 1.5.2.2 tls * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 1.5.2.2 tls * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 1.5.2.2 tls * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 1.5.2.2 tls * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 1.5.2.2 tls * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 1.5.2.2 tls * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 1.5.2.2 tls * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 1.5.2.2 tls * SUCH DAMAGE. 37 1.5.2.2 tls * 38 1.5.2.2 tls * @(#)inode.h 8.9 (Berkeley) 5/14/95 39 1.5.2.2 tls */ 40 1.5.2.2 tls 41 1.5.2.2 tls #ifndef _UFS_LFS_LFS_INODE_H_ 42 1.5.2.2 tls #define _UFS_LFS_LFS_INODE_H_ 43 1.5.2.2 tls 44 1.5.2.2 tls /* 45 1.5.2.2 tls * Some of the userlevel code (fsck, newfs, lfs_cleanerd) wants to use 46 1.5.2.2 tls * the in-memory inode structure in a faked-up kernel environment. 47 1.5.2.2 tls * This header file provides a reasonably sanitized version of the 48 1.5.2.2 tls * structures and definitions needed for that purpose. 49 1.5.2.2 tls */ 50 1.5.2.2 tls 51 1.5.2.2 tls #include <miscfs/genfs/genfs_node.h> 52 1.5.2.2 tls #include <ufs/lfs/lfs.h> 53 1.5.2.2 tls 54 1.5.2.2 tls /* 55 1.5.2.2 tls * Adjustable filesystem parameters 56 1.5.2.2 tls */ 57 1.5.2.2 tls #define MIN_FREE_SEGS 20 58 1.5.2.2 tls #define MIN_RESV_SEGS 15 59 1.5.2.2 tls 60 1.5.2.2 tls /* 61 1.5.2.2 tls * The following constants define the usage of the quota file array in the 62 1.5.2.2 tls * ulfsmount structure and dquot array in the inode structure. The semantics 63 1.5.2.2 tls * of the elements of these arrays are defined in the routine lfs_getinoquota; 64 1.5.2.2 tls * the remainder of the quota code treats them generically and need not be 65 1.5.2.2 tls * inspected when changing the size of the array. 66 1.5.2.2 tls */ 67 1.5.2.2 tls #define ULFS_MAXQUOTAS 2 68 1.5.2.2 tls #define ULFS_USRQUOTA 0 /* element used for user quotas */ 69 1.5.2.2 tls #define ULFS_GRPQUOTA 1 /* element used for group quotas */ 70 1.5.2.2 tls 71 1.5.2.2 tls /* 72 1.5.2.2 tls * Lookup result state (other than the result inode). This is 73 1.5.2.2 tls * currently stashed in the vnode between VOP_LOOKUP and directory 74 1.5.2.2 tls * operation VOPs, which is gross. 75 1.5.2.2 tls * 76 1.5.2.2 tls * XXX ulr_diroff is a lookup hint from the previos call of VOP_LOOKUP. 77 1.5.2.2 tls * probably it should not be here. 78 1.5.2.2 tls */ 79 1.5.2.2 tls struct ulfs_lookup_results { 80 1.5.2.2 tls int32_t ulr_count; /* Size of free slot in directory. */ 81 1.5.2.2 tls doff_t ulr_endoff; /* End of useful stuff in directory. */ 82 1.5.2.2 tls doff_t ulr_diroff; /* Offset in dir, where we found last entry. */ 83 1.5.2.2 tls doff_t ulr_offset; /* Offset of free space in directory. */ 84 1.5.2.4 jdolecek uint32_t ulr_reclen; /* Size of found directory entry. */ 85 1.5.2.2 tls }; 86 1.5.2.2 tls 87 1.5.2.2 tls /* notyet XXX */ 88 1.5.2.2 tls #define ULFS_CHECK_CRAPCOUNTER(dp) ((void)(dp)->i_crapcounter) 89 1.5.2.2 tls 90 1.5.2.2 tls /* 91 1.5.2.2 tls * Per-filesystem inode extensions. 92 1.5.2.2 tls */ 93 1.5.2.2 tls struct lfs_inode_ext; 94 1.5.2.2 tls 95 1.5.2.2 tls /* 96 1.5.2.2 tls * The inode is used to describe each active (or recently active) file in the 97 1.5.2.2 tls * ULFS filesystem. It is composed of two types of information. The first part 98 1.5.2.2 tls * is the information that is needed only while the file is active (such as 99 1.5.2.2 tls * the identity of the file and linkage to speed its lookup). The second part 100 1.5.2.2 tls * is the permanent meta-data associated with the file which is read in 101 1.5.2.2 tls * from the permanent dinode from long term storage when the file becomes 102 1.5.2.2 tls * active, and is put back when the file is no longer being used. 103 1.5.2.2 tls */ 104 1.5.2.2 tls struct inode { 105 1.5.2.2 tls struct genfs_node i_gnode; 106 1.5.2.2 tls TAILQ_ENTRY(inode) i_nextsnap; /* snapshot file list. */ 107 1.5.2.2 tls struct vnode *i_vnode; /* Vnode associated with this inode. */ 108 1.5.2.2 tls struct ulfsmount *i_ump; /* Mount point associated with this inode. */ 109 1.5.2.2 tls struct vnode *i_devvp; /* Vnode for block I/O. */ 110 1.5.2.4 jdolecek 111 1.5.2.4 jdolecek uint32_t i_state; /* state */ 112 1.5.2.4 jdolecek #define IN_ACCESS 0x0001 /* Access time update request. */ 113 1.5.2.4 jdolecek #define IN_CHANGE 0x0002 /* Inode change time update request. */ 114 1.5.2.4 jdolecek #define IN_UPDATE 0x0004 /* Inode was written to; update mtime. */ 115 1.5.2.4 jdolecek #define IN_MODIFY 0x2000 /* Modification time update request. */ 116 1.5.2.4 jdolecek #define IN_MODIFIED 0x0008 /* Inode has been modified. */ 117 1.5.2.4 jdolecek #define IN_ACCESSED 0x0010 /* Inode has been accessed. */ 118 1.5.2.4 jdolecek /* unused 0x0020 */ /* was IN_RENAME */ 119 1.5.2.4 jdolecek #define IN_SHLOCK 0x0040 /* File has shared lock. */ 120 1.5.2.4 jdolecek #define IN_EXLOCK 0x0080 /* File has exclusive lock. */ 121 1.5.2.4 jdolecek #define IN_CLEANING 0x0100 /* LFS: file is being cleaned */ 122 1.5.2.4 jdolecek #define IN_ADIROP 0x0200 /* LFS: dirop in progress */ 123 1.5.2.4 jdolecek /* unused 0x0400 */ /* was FFS-only IN_SPACECOUNTED */ 124 1.5.2.4 jdolecek #define IN_PAGING 0x1000 /* LFS: file is on paging queue */ 125 1.5.2.4 jdolecek #define IN_CDIROP 0x4000 /* LFS: dirop completed pending i/o */ 126 1.5.2.4 jdolecek 127 1.5.2.4 jdolecek /* XXX this is missing some of the flags */ 128 1.5.2.4 jdolecek #define IN_ALLMOD (IN_MODIFIED|IN_ACCESS|IN_CHANGE|IN_UPDATE|IN_MODIFY|IN_ACCESSED|IN_CLEANING) 129 1.5.2.4 jdolecek 130 1.5.2.2 tls dev_t i_dev; /* Device associated with the inode. */ 131 1.5.2.2 tls ino_t i_number; /* The identity of the inode. */ 132 1.5.2.2 tls 133 1.5.2.2 tls struct lfs *i_lfs; /* The LFS volume we belong to. */ 134 1.5.2.2 tls 135 1.5.2.2 tls void *i_unused1; /* Unused. */ 136 1.5.2.2 tls struct dquot *i_dquot[ULFS_MAXQUOTAS]; /* Dquot structures. */ 137 1.5.2.2 tls u_quad_t i_modrev; /* Revision level for NFS lease. */ 138 1.5.2.2 tls struct lockf *i_lockf;/* Head of byte-level lock list. */ 139 1.5.2.2 tls 140 1.5.2.2 tls /* 141 1.5.2.2 tls * Side effects; used during (and after) directory lookup. 142 1.5.2.2 tls * XXX should not be here. 143 1.5.2.2 tls */ 144 1.5.2.2 tls struct ulfs_lookup_results i_crap; 145 1.5.2.2 tls unsigned i_crapcounter; /* serial number for i_crap */ 146 1.5.2.2 tls 147 1.5.2.2 tls /* 148 1.5.2.2 tls * Inode extensions 149 1.5.2.2 tls */ 150 1.5.2.2 tls union { 151 1.5.2.2 tls /* Other extensions could go here... */ 152 1.5.2.2 tls struct lfs_inode_ext *lfs; 153 1.5.2.2 tls } inode_ext; 154 1.5.2.2 tls /* 155 1.5.2.2 tls * Copies from the on-disk dinode itself. 156 1.5.2.2 tls * 157 1.5.2.2 tls * These fields are currently only used by LFS. 158 1.5.2.2 tls */ 159 1.5.2.4 jdolecek uint16_t i_mode; /* IFMT, permissions; see below. */ 160 1.5.2.2 tls int16_t i_nlink; /* File link count. */ 161 1.5.2.4 jdolecek uint64_t i_size; /* File byte count. */ 162 1.5.2.4 jdolecek uint32_t i_flags; /* Status flags (chflags). */ 163 1.5.2.2 tls int32_t i_gen; /* Generation number. */ 164 1.5.2.4 jdolecek uint32_t i_uid; /* File owner. */ 165 1.5.2.4 jdolecek uint32_t i_gid; /* File group. */ 166 1.5.2.4 jdolecek uint16_t i_omode; /* Old mode, for ulfs_reclaim. */ 167 1.5.2.2 tls 168 1.5.2.2 tls struct dirhash *i_dirhash; /* Hashing for large directories */ 169 1.5.2.2 tls 170 1.5.2.2 tls /* 171 1.5.2.2 tls * The on-disk dinode itself. 172 1.5.2.2 tls */ 173 1.5.2.4 jdolecek union lfs_dinode *i_din; 174 1.5.2.2 tls }; 175 1.5.2.2 tls 176 1.5.2.2 tls /* 177 1.5.2.2 tls * LFS inode extensions. 178 1.5.2.2 tls */ 179 1.5.2.2 tls struct lfs_inode_ext { 180 1.5.2.2 tls off_t lfs_osize; /* size of file on disk */ 181 1.5.2.4 jdolecek uint64_t lfs_effnblocks; /* number of blocks when i/o completes */ 182 1.5.2.2 tls size_t lfs_fragsize[ULFS_NDADDR]; /* size of on-disk direct blocks */ 183 1.5.2.2 tls TAILQ_ENTRY(inode) lfs_dchain; /* Dirop chain. */ 184 1.5.2.2 tls TAILQ_ENTRY(inode) lfs_pchain; /* Paging chain. */ 185 1.5.2.2 tls #define LFSI_NO_GOP_WRITE 0x01 186 1.5.2.2 tls #define LFSI_DELETED 0x02 187 1.5.2.2 tls #define LFSI_WRAPBLOCK 0x04 188 1.5.2.2 tls #define LFSI_WRAPWAIT 0x08 189 1.5.2.2 tls #define LFSI_BMAP 0x10 190 1.5.2.4 jdolecek uint32_t lfs_iflags; /* Inode flags */ 191 1.5.2.2 tls daddr_t lfs_hiblk; /* Highest lbn held by inode */ 192 1.5.2.2 tls #ifdef _KERNEL 193 1.5.2.2 tls SPLAY_HEAD(lfs_splay, lbnentry) lfs_lbtree; /* Tree of balloc'd lbns */ 194 1.5.2.2 tls int lfs_nbtree; /* Size of tree */ 195 1.5.2.2 tls LIST_HEAD(, segdelta) lfs_segdhd; 196 1.5.2.2 tls #endif 197 1.5.2.2 tls int16_t lfs_odnlink; /* on-disk nlink count for cleaner */ 198 1.5.2.2 tls }; 199 1.5.2.2 tls #define i_lfs_osize inode_ext.lfs->lfs_osize 200 1.5.2.2 tls #define i_lfs_effnblks inode_ext.lfs->lfs_effnblocks 201 1.5.2.2 tls #define i_lfs_fragsize inode_ext.lfs->lfs_fragsize 202 1.5.2.2 tls #define i_lfs_dchain inode_ext.lfs->lfs_dchain 203 1.5.2.2 tls #define i_lfs_pchain inode_ext.lfs->lfs_pchain 204 1.5.2.2 tls #define i_lfs_iflags inode_ext.lfs->lfs_iflags 205 1.5.2.2 tls #define i_lfs_hiblk inode_ext.lfs->lfs_hiblk 206 1.5.2.2 tls #define i_lfs_lbtree inode_ext.lfs->lfs_lbtree 207 1.5.2.2 tls #define i_lfs_nbtree inode_ext.lfs->lfs_nbtree 208 1.5.2.2 tls #define i_lfs_segdhd inode_ext.lfs->lfs_segdhd 209 1.5.2.2 tls #define i_lfs_odnlink inode_ext.lfs->lfs_odnlink 210 1.5.2.2 tls 211 1.5.2.2 tls /* 212 1.5.2.2 tls * "struct buf" associated definitions 213 1.5.2.2 tls */ 214 1.5.2.2 tls 215 1.5.2.2 tls #ifdef _KERNEL 216 1.5.2.2 tls 217 1.5.2.2 tls # define LFS_IS_MALLOC_BUF(bp) ((bp)->b_iodone == lfs_callback) 218 1.5.2.2 tls 219 1.5.2.2 tls /* log for debugging writes to the Ifile */ 220 1.5.2.2 tls # ifdef DEBUG 221 1.5.2.2 tls struct lfs_log_entry { 222 1.5.2.2 tls const char *op; 223 1.5.2.2 tls const char *file; 224 1.5.2.2 tls int pid; 225 1.5.2.2 tls int line; 226 1.5.2.2 tls daddr_t block; 227 1.5.2.2 tls unsigned long flags; 228 1.5.2.2 tls }; 229 1.5.2.2 tls extern int lfs_lognum; 230 1.5.2.2 tls extern struct lfs_log_entry lfs_log[LFS_LOGLENGTH]; 231 1.5.2.2 tls # define LFS_BWRITE_LOG(bp) lfs_bwrite_log((bp), __FILE__, __LINE__) 232 1.5.2.2 tls # define LFS_ENTER_LOG(theop, thefile, theline, lbn, theflags, thepid) do {\ 233 1.5.2.2 tls \ 234 1.5.2.2 tls mutex_enter(&lfs_lock); \ 235 1.5.2.2 tls lfs_log[lfs_lognum].op = theop; \ 236 1.5.2.2 tls lfs_log[lfs_lognum].file = thefile; \ 237 1.5.2.2 tls lfs_log[lfs_lognum].line = (theline); \ 238 1.5.2.2 tls lfs_log[lfs_lognum].pid = (thepid); \ 239 1.5.2.2 tls lfs_log[lfs_lognum].block = (lbn); \ 240 1.5.2.2 tls lfs_log[lfs_lognum].flags = (theflags); \ 241 1.5.2.2 tls lfs_lognum = (lfs_lognum + 1) % LFS_LOGLENGTH; \ 242 1.5.2.2 tls mutex_exit(&lfs_lock); \ 243 1.5.2.2 tls } while (0) 244 1.5.2.2 tls 245 1.5.2.2 tls /* Must match list in lfs_vfsops.c ! */ 246 1.5.2.2 tls # define DLOG_RF 0 /* roll forward */ 247 1.5.2.2 tls # define DLOG_ALLOC 1 /* inode alloc */ 248 1.5.2.2 tls # define DLOG_AVAIL 2 /* lfs_{,r,f}avail */ 249 1.5.2.2 tls # define DLOG_FLUSH 3 /* flush */ 250 1.5.2.2 tls # define DLOG_LLIST 4 /* locked list accounting */ 251 1.5.2.2 tls # define DLOG_WVNODE 5 /* vflush/writevnodes verbose */ 252 1.5.2.2 tls # define DLOG_VNODE 6 /* vflush/writevnodes */ 253 1.5.2.2 tls # define DLOG_SEG 7 /* segwrite */ 254 1.5.2.2 tls # define DLOG_SU 8 /* seguse accounting */ 255 1.5.2.2 tls # define DLOG_CLEAN 9 /* cleaner routines */ 256 1.5.2.2 tls # define DLOG_MOUNT 10 /* mount/unmount */ 257 1.5.2.2 tls # define DLOG_PAGE 11 /* putpages/gop_write */ 258 1.5.2.2 tls # define DLOG_DIROP 12 /* dirop accounting */ 259 1.5.2.2 tls # define DLOG_MALLOC 13 /* lfs_malloc accounting */ 260 1.5.2.2 tls # define DLOG_MAX 14 /* The terminator */ 261 1.5.2.2 tls # define DLOG(a) lfs_debug_log a 262 1.5.2.2 tls # else /* ! DEBUG */ 263 1.5.2.2 tls # define LFS_BCLEAN_LOG(fs, bp) 264 1.5.2.2 tls # define LFS_BWRITE_LOG(bp) VOP_BWRITE((bp)->b_vp, (bp)) 265 1.5.2.4 jdolecek # define LFS_ENTER_LOG(theop, thefile, theline, lbn, theflags, thepid) __nothing 266 1.5.2.2 tls # define DLOG(a) 267 1.5.2.2 tls # endif /* ! DEBUG */ 268 1.5.2.2 tls #else /* ! _KERNEL */ 269 1.5.2.2 tls # define LFS_BWRITE_LOG(bp) VOP_BWRITE((bp)) 270 1.5.2.2 tls #endif /* _KERNEL */ 271 1.5.2.2 tls 272 1.5.2.2 tls 273 1.5.2.2 tls #endif /* _UFS_LFS_LFS_INODE_H_ */ 274
Indexes created Wed Oct 15 03:09:54 GMT 2025