lfs_inode.h revision 1.3
1 /* $NetBSD: lfs_inode.h,v 1.3 2013/06/08 23:12:51 dholland Exp $ */ 2 /* from NetBSD: ulfs_inode.h,v 1.5 2013/06/06 00:51:50 dholland Exp */ 3 /* from NetBSD: inode.h,v 1.64 2012/11/19 00:36:21 jakllsch Exp */ 4 5 /* 6 * Copyright (c) 1982, 1989, 1993 7 * The Regents of the University of California. All rights reserved. 8 * (c) UNIX System Laboratories, Inc. 9 * All or some portions of this file are derived from material licensed 10 * to the University of California by American Telephone and Telegraph 11 * Co. or Unix System Laboratories, Inc. and are reproduced herein with 12 * the permission of UNIX System Laboratories, Inc. 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions 16 * are met: 17 * 1. Redistributions of source code must retain the above copyright 18 * notice, this list of conditions and the following disclaimer. 19 * 2. Redistributions in binary form must reproduce the above copyright 20 * notice, this list of conditions and the following disclaimer in the 21 * documentation and/or other materials provided with the distribution. 22 * 3. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)inode.h 8.9 (Berkeley) 5/14/95 39 */ 40 41 #ifndef _UFS_LFS_LFS_INODE_H_ 42 #define _UFS_LFS_LFS_INODE_H_ 43 44 /* 45 * Some of the userlevel code (fsck, newfs, lfs_cleanerd) wants to use 46 * the in-memory inode structure in a faked-up kernel environment. 47 * This header file provides a reasonably sanitized version of the 48 * structures and definitions needed for that purpose. 49 */ 50 51 #include <miscfs/genfs/genfs_node.h> 52 #include <ufs/lfs/lfs.h> 53 54 /* 55 * The following constants define the usage of the quota file array in the 56 * ulfsmount structure and dquot array in the inode structure. The semantics 57 * of the elements of these arrays are defined in the routine lfs_getinoquota; 58 * the remainder of the quota code treats them generically and need not be 59 * inspected when changing the size of the array. 60 */ 61 #define ULFS_MAXQUOTAS 2 62 #define ULFS_USRQUOTA 0 /* element used for user quotas */ 63 #define ULFS_GRPQUOTA 1 /* element used for group quotas */ 64 65 /* 66 * Lookup result state (other than the result inode). This is 67 * currently stashed in the vnode between VOP_LOOKUP and directory 68 * operation VOPs, which is gross. 69 * 70 * XXX ulr_diroff is a lookup hint from the previos call of VOP_LOOKUP. 71 * probably it should not be here. 72 */ 73 struct ulfs_lookup_results { 74 int32_t ulr_count; /* Size of free slot in directory. */ 75 doff_t ulr_endoff; /* End of useful stuff in directory. */ 76 doff_t ulr_diroff; /* Offset in dir, where we found last entry. */ 77 doff_t ulr_offset; /* Offset of free space in directory. */ 78 u_int32_t ulr_reclen; /* Size of found directory entry. */ 79 }; 80 81 /* notyet XXX */ 82 #define ULFS_CHECK_CRAPCOUNTER(dp) ((void)(dp)->i_crapcounter) 83 84 /* 85 * Per-filesystem inode extensions. 86 */ 87 struct lfs_inode_ext; 88 89 /* 90 * The inode is used to describe each active (or recently active) file in the 91 * ULFS filesystem. It is composed of two types of information. The first part 92 * is the information that is needed only while the file is active (such as 93 * the identity of the file and linkage to speed its lookup). The second part 94 * is the permanent meta-data associated with the file which is read in 95 * from the permanent dinode from long term storage when the file becomes 96 * active, and is put back when the file is no longer being used. 97 */ 98 struct inode { 99 struct genfs_node i_gnode; 100 LIST_ENTRY(inode) i_hash;/* Hash chain. */ 101 TAILQ_ENTRY(inode) i_nextsnap; /* snapshot file list. */ 102 struct vnode *i_vnode; /* Vnode associated with this inode. */ 103 struct ulfsmount *i_ump; /* Mount point associated with this inode. */ 104 struct vnode *i_devvp; /* Vnode for block I/O. */ 105 u_int32_t i_flag; /* flags, see below */ 106 dev_t i_dev; /* Device associated with the inode. */ 107 ino_t i_number; /* The identity of the inode. */ 108 109 struct lfs *i_lfs; /* The LFS volume we belong to. */ 110 111 void *i_unused1; /* Unused. */ 112 struct dquot *i_dquot[ULFS_MAXQUOTAS]; /* Dquot structures. */ 113 u_quad_t i_modrev; /* Revision level for NFS lease. */ 114 struct lockf *i_lockf;/* Head of byte-level lock list. */ 115 116 /* 117 * Side effects; used during (and after) directory lookup. 118 * XXX should not be here. 119 */ 120 struct ulfs_lookup_results i_crap; 121 unsigned i_crapcounter; /* serial number for i_crap */ 122 123 /* 124 * Inode extensions 125 */ 126 union { 127 /* Other extensions could go here... */ 128 struct lfs_inode_ext *lfs; 129 } inode_ext; 130 /* 131 * Copies from the on-disk dinode itself. 132 * 133 * These fields are currently only used by LFS. 134 */ 135 u_int16_t i_mode; /* IFMT, permissions; see below. */ 136 int16_t i_nlink; /* File link count. */ 137 u_int64_t i_size; /* File byte count. */ 138 u_int32_t i_flags; /* Status flags (chflags). */ 139 int32_t i_gen; /* Generation number. */ 140 u_int32_t i_uid; /* File owner. */ 141 u_int32_t i_gid; /* File group. */ 142 u_int16_t i_omode; /* Old mode, for ulfs_reclaim. */ 143 144 struct dirhash *i_dirhash; /* Hashing for large directories */ 145 146 /* 147 * The on-disk dinode itself. 148 */ 149 union { 150 struct ulfs1_dinode *ffs1_din; /* 128 bytes of the on-disk dinode. */ 151 struct ulfs2_dinode *ffs2_din; 152 } i_din; 153 }; 154 155 #define i_ffs1_atime i_din.ffs1_din->di_atime 156 #define i_ffs1_atimensec i_din.ffs1_din->di_atimensec 157 #define i_ffs1_blocks i_din.ffs1_din->di_blocks 158 #define i_ffs1_ctime i_din.ffs1_din->di_ctime 159 #define i_ffs1_ctimensec i_din.ffs1_din->di_ctimensec 160 #define i_ffs1_db i_din.ffs1_din->di_db 161 #define i_ffs1_flags i_din.ffs1_din->di_flags 162 #define i_ffs1_gen i_din.ffs1_din->di_gen 163 #define i_ffs1_gid i_din.ffs1_din->di_gid 164 #define i_ffs1_ib i_din.ffs1_din->di_ib 165 #define i_ffs1_mode i_din.ffs1_din->di_mode 166 #define i_ffs1_mtime i_din.ffs1_din->di_mtime 167 #define i_ffs1_mtimensec i_din.ffs1_din->di_mtimensec 168 #define i_ffs1_nlink i_din.ffs1_din->di_nlink 169 #define i_ffs1_rdev i_din.ffs1_din->di_rdev 170 #define i_ffs1_size i_din.ffs1_din->di_size 171 #define i_ffs1_uid i_din.ffs1_din->di_uid 172 173 #define i_ffs2_atime i_din.ffs2_din->di_atime 174 #define i_ffs2_atimensec i_din.ffs2_din->di_atimensec 175 #define i_ffs2_birthtime i_din.ffs2_din->di_birthtime 176 #define i_ffs2_birthnsec i_din.ffs2_din->di_birthnsec 177 #define i_ffs2_blocks i_din.ffs2_din->di_blocks 178 #define i_ffs2_blksize i_din.ffs2_din->di_blksize 179 #define i_ffs2_ctime i_din.ffs2_din->di_ctime 180 #define i_ffs2_ctimensec i_din.ffs2_din->di_ctimensec 181 #define i_ffs2_db i_din.ffs2_din->di_db 182 #define i_ffs2_flags i_din.ffs2_din->di_flags 183 #define i_ffs2_gen i_din.ffs2_din->di_gen 184 #define i_ffs2_gid i_din.ffs2_din->di_gid 185 #define i_ffs2_ib i_din.ffs2_din->di_ib 186 #define i_ffs2_mode i_din.ffs2_din->di_mode 187 #define i_ffs2_mtime i_din.ffs2_din->di_mtime 188 #define i_ffs2_mtimensec i_din.ffs2_din->di_mtimensec 189 #define i_ffs2_nlink i_din.ffs2_din->di_nlink 190 #define i_ffs2_rdev i_din.ffs2_din->di_rdev 191 #define i_ffs2_size i_din.ffs2_din->di_size 192 #define i_ffs2_uid i_din.ffs2_din->di_uid 193 #define i_ffs2_kernflags i_din.ffs2_din->di_kernflags 194 #define i_ffs2_extsize i_din.ffs2_din->di_extsize 195 #define i_ffs2_extb i_din.ffs2_din->di_extb 196 197 /* These flags are kept in i_flag. */ 198 #define IN_ACCESS 0x0001 /* Access time update request. */ 199 #define IN_CHANGE 0x0002 /* Inode change time update request. */ 200 #define IN_UPDATE 0x0004 /* Inode was written to; update mtime. */ 201 #define IN_MODIFY 0x2000 /* Modification time update request. */ 202 #define IN_MODIFIED 0x0008 /* Inode has been modified. */ 203 #define IN_ACCESSED 0x0010 /* Inode has been accessed. */ 204 /* #define IN_UNUSED 0x0020 */ /* unused, was IN_RENAME */ 205 #define IN_SHLOCK 0x0040 /* File has shared lock. */ 206 #define IN_EXLOCK 0x0080 /* File has exclusive lock. */ 207 #define IN_CLEANING 0x0100 /* LFS: file is being cleaned */ 208 #define IN_ADIROP 0x0200 /* LFS: dirop in progress */ 209 #define IN_SPACECOUNTED 0x0400 /* Blocks to be freed in free count. */ 210 #define IN_PAGING 0x1000 /* LFS: file is on paging queue */ 211 #define IN_CDIROP 0x4000 /* LFS: dirop completed pending i/o */ 212 213 #endif /* _UFS_LFS_LFS_INODE_H_ */ 214
Indexes created Wed Oct 15 16:09:53 GMT 2025