1 /* 2 * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * Further, this software is distributed without any warranty that it is 13 * free of the rightful claim of any third person regarding infringement 14 * or the like. Any license provided herein, whether implied or 15 * otherwise, applies only to this software file. Patent licenses, if 16 * any, provided herein do not apply to combinations of this program with 17 * other software, or any other product whatsoever. 18 * 19 * You should have received a copy of the GNU General Public License along 20 * with this program; if not, write the Free Software Foundation, Inc., 59 21 * Temple Place - Suite 330, Boston MA 02111-1307, USA. 22 * 23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, 24 * Mountain View, CA 94043, or: 25 * 26 * http://www.sgi.com 27 * 28 * For further information regarding this notice, see: 29 * 30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ 31 */ 32 #ifndef __XFS_TYPES_H__ 33 #define __XFS_TYPES_H__ 34 35 #ifdef __KERNEL__ 36 37 /* 38 * POSIX Extensions 39 */ 40 typedef unsigned char uchar_t; 41 typedef unsigned short ushort_t; 42 typedef unsigned int uint_t; 43 typedef unsigned long ulong_t; 44 45 /* 46 * Additional type declarations for XFS 47 */ 48 typedef signed char __int8_t; 49 typedef unsigned char __uint8_t; 50 typedef signed short int __int16_t; 51 typedef unsigned short int __uint16_t; 52 typedef signed int __int32_t; 53 typedef unsigned int __uint32_t; 54 typedef signed long long int __int64_t; 55 typedef unsigned long long int __uint64_t; 56 57 typedef enum { B_FALSE,B_TRUE } boolean_t; 58 typedef __int64_t prid_t; /* project ID */ 59 typedef __uint32_t inst_t; /* an instruction */ 60 61 typedef __s64 xfs_off_t; /* <file offset> type */ 62 typedef __u64 xfs_ino_t; /* <inode> type */ 63 typedef __s64 xfs_daddr_t; /* <disk address> type */ 64 typedef char * xfs_caddr_t; /* <core address> type */ 65 typedef __u32 xfs_dev_t; 66 67 /* __psint_t is the same size as a pointer */ 68 #if (BITS_PER_LONG == 32) 69 typedef __int32_t __psint_t; 70 typedef __uint32_t __psunsigned_t; 71 #elif (BITS_PER_LONG == 64) 72 typedef __int64_t __psint_t; 73 typedef __uint64_t __psunsigned_t; 74 #else 75 #error BITS_PER_LONG must be 32 or 64 76 #endif 77 78 #endif /* __KERNEL__ */ 79 80 typedef __uint32_t xfs_agblock_t; /* blockno in alloc. group */ 81 typedef __uint32_t xfs_extlen_t; /* extent length in blocks */ 82 typedef __uint32_t xfs_agnumber_t; /* allocation group number */ 83 typedef __int32_t xfs_extnum_t; /* # of extents in a file */ 84 typedef __int16_t xfs_aextnum_t; /* # extents in an attribute fork */ 85 typedef __int64_t xfs_fsize_t; /* bytes in a file */ 86 typedef __uint64_t xfs_ufsize_t; /* unsigned bytes in a file */ 87 88 typedef __int32_t xfs_suminfo_t; /* type of bitmap summary info */ 89 typedef __int32_t xfs_rtword_t; /* word type for bitmap manipulations */ 90 91 typedef __int64_t xfs_lsn_t; /* log sequence number */ 92 typedef __int32_t xfs_tid_t; /* transaction identifier */ 93 94 typedef __uint32_t xfs_dablk_t; /* dir/attr block number (in file) */ 95 typedef __uint32_t xfs_dahash_t; /* dir/attr hash value */ 96 97 typedef __uint16_t xfs_prid_t; /* prid_t truncated to 16bits in XFS */ 98 99 /* 100 * These types are 64 bits on disk but are either 32 or 64 bits in memory. 101 * Disk based types: 102 */ 103 typedef __uint64_t xfs_dfsbno_t; /* blockno in filesystem (agno|agbno) */ 104 typedef __uint64_t xfs_drfsbno_t; /* blockno in filesystem (raw) */ 105 typedef __uint64_t xfs_drtbno_t; /* extent (block) in realtime area */ 106 typedef __uint64_t xfs_dfiloff_t; /* block number in a file */ 107 typedef __uint64_t xfs_dfilblks_t; /* number of blocks in a file */ 108 109 /* 110 * Memory based types are conditional. 111 */ 112 #if XFS_BIG_BLKNOS 113 typedef __uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */ 114 typedef __uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */ 115 typedef __uint64_t xfs_rtblock_t; /* extent (block) in realtime area */ 116 typedef __int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */ 117 #else 118 typedef __uint32_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */ 119 typedef __uint32_t xfs_rfsblock_t; /* blockno in filesystem (raw) */ 120 typedef __uint32_t xfs_rtblock_t; /* extent (block) in realtime area */ 121 typedef __int32_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */ 122 #endif 123 typedef __uint64_t xfs_fileoff_t; /* block number in a file */ 124 typedef __int64_t xfs_sfiloff_t; /* signed block number in a file */ 125 typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */ 126 127 typedef __uint8_t xfs_arch_t; /* architecture of an xfs fs */ 128 129 /* 130 * Null values for the types. 131 */ 132 #define NULLDFSBNO ((xfs_dfsbno_t)-1) 133 #define NULLDRFSBNO ((xfs_drfsbno_t)-1) 134 #define NULLDRTBNO ((xfs_drtbno_t)-1) 135 #define NULLDFILOFF ((xfs_dfiloff_t)-1) 136 137 #define NULLFSBLOCK ((xfs_fsblock_t)-1) 138 #define NULLRFSBLOCK ((xfs_rfsblock_t)-1) 139 #define NULLRTBLOCK ((xfs_rtblock_t)-1) 140 #define NULLFILEOFF ((xfs_fileoff_t)-1) 141 142 #define NULLAGBLOCK ((xfs_agblock_t)-1) 143 #define NULLAGNUMBER ((xfs_agnumber_t)-1) 144 #define NULLEXTNUM ((xfs_extnum_t)-1) 145 146 #define NULLCOMMITLSN ((xfs_lsn_t)-1) 147 148 /* 149 * Max values for extlen, extnum, aextnum. 150 */ 151 #define MAXEXTLEN ((xfs_extlen_t)0x001fffff) /* 21 bits */ 152 #define MAXEXTNUM ((xfs_extnum_t)0x7fffffff) /* signed int */ 153 #define MAXAEXTNUM ((xfs_aextnum_t)0x7fff) /* signed short */ 154 155 /* 156 * MAXNAMELEN is the length (including the terminating null) of 157 * the longest permissible file (component) name. 158 */ 159 #define MAXNAMELEN 256 160 161 typedef struct xfs_dirent { /* data from readdir() */ 162 xfs_ino_t d_ino; /* inode number of entry */ 163 xfs_off_t d_off; /* offset of disk directory entry */ 164 unsigned short d_reclen; /* length of this record */ 165 char d_name[1]; /* name of file */ 166 } xfs_dirent_t; 167 168 #define DIRENTBASESIZE (((xfs_dirent_t *)0)->d_name - (char *)0) 169 #define DIRENTSIZE(namelen) \ 170 ((DIRENTBASESIZE + (namelen) + \ 171 sizeof(xfs_off_t)) & ~(sizeof(xfs_off_t) - 1)) 172 173 typedef enum { 174 XFS_LOOKUP_EQi, XFS_LOOKUP_LEi, XFS_LOOKUP_GEi 175 } xfs_lookup_t; 176 177 typedef enum { 178 XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi, 179 XFS_BTNUM_MAX 180 } xfs_btnum_t; 181 182 #endif /* __XFS_TYPES_H__ */ 183