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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 | /* * Copyright (c) 2000-2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef __XFS_TYPES_H__ #define __XFS_TYPES_H__ typedef __uint32_t prid_t; /* project ID */ typedef __uint32_t xfs_agblock_t; /* blockno in alloc. group */ typedef __uint32_t xfs_agino_t; /* inode # within allocation grp */ typedef __uint32_t xfs_extlen_t; /* extent length in blocks */ typedef __uint32_t xfs_agnumber_t; /* allocation group number */ typedef __int32_t xfs_extnum_t; /* # of extents in a file */ typedef __int16_t xfs_aextnum_t; /* # extents in an attribute fork */ typedef __int64_t xfs_fsize_t; /* bytes in a file */ typedef __uint64_t xfs_ufsize_t; /* unsigned bytes in a file */ typedef __int32_t xfs_suminfo_t; /* type of bitmap summary info */ typedef __int32_t xfs_rtword_t; /* word type for bitmap manipulations */ typedef __int64_t xfs_lsn_t; /* log sequence number */ typedef __int32_t xfs_tid_t; /* transaction identifier */ typedef __uint32_t xfs_dablk_t; /* dir/attr block number (in file) */ typedef __uint32_t xfs_dahash_t; /* dir/attr hash value */ typedef __uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */ typedef __uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */ typedef __uint64_t xfs_rtblock_t; /* extent (block) in realtime area */ typedef __uint64_t xfs_fileoff_t; /* block number in a file */ typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */ typedef __int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */ typedef __int64_t xfs_sfiloff_t; /* signed block number in a file */ /* * Null values for the types. */ #define NULLFSBLOCK ((xfs_fsblock_t)-1) #define NULLRFSBLOCK ((xfs_rfsblock_t)-1) #define NULLRTBLOCK ((xfs_rtblock_t)-1) #define NULLFILEOFF ((xfs_fileoff_t)-1) #define NULLAGBLOCK ((xfs_agblock_t)-1) #define NULLAGNUMBER ((xfs_agnumber_t)-1) #define NULLEXTNUM ((xfs_extnum_t)-1) #define NULLCOMMITLSN ((xfs_lsn_t)-1) #define NULLFSINO ((xfs_ino_t)-1) #define NULLAGINO ((xfs_agino_t)-1) /* * Max values for extlen, extnum, aextnum. */ #define MAXEXTLEN ((xfs_extlen_t)0x001fffff) /* 21 bits */ #define MAXEXTNUM ((xfs_extnum_t)0x7fffffff) /* signed int */ #define MAXAEXTNUM ((xfs_aextnum_t)0x7fff) /* signed short */ /* * Minimum and maximum blocksize and sectorsize. * The blocksize upper limit is pretty much arbitrary. * The sectorsize upper limit is due to sizeof(sb_sectsize). */ #define XFS_MIN_BLOCKSIZE_LOG 9 /* i.e. 512 bytes */ #define XFS_MAX_BLOCKSIZE_LOG 16 /* i.e. 65536 bytes */ #define XFS_MIN_BLOCKSIZE (1 << XFS_MIN_BLOCKSIZE_LOG) #define XFS_MAX_BLOCKSIZE (1 << XFS_MAX_BLOCKSIZE_LOG) #define XFS_MIN_SECTORSIZE_LOG 9 /* i.e. 512 bytes */ #define XFS_MAX_SECTORSIZE_LOG 15 /* i.e. 32768 bytes */ #define XFS_MIN_SECTORSIZE (1 << XFS_MIN_SECTORSIZE_LOG) #define XFS_MAX_SECTORSIZE (1 << XFS_MAX_SECTORSIZE_LOG) /* * Inode fork identifiers. */ #define XFS_DATA_FORK 0 #define XFS_ATTR_FORK 1 /* * Min numbers of data/attr fork btree root pointers. */ #define MINDBTPTRS 3 #define MINABTPTRS 2 /* * MAXNAMELEN is the length (including the terminating null) of * the longest permissible file (component) name. */ #define MAXNAMELEN 256 typedef enum { XFS_LOOKUP_EQi, XFS_LOOKUP_LEi, XFS_LOOKUP_GEi } xfs_lookup_t; typedef enum { XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi, XFS_BTNUM_FINOi, XFS_BTNUM_MAX } xfs_btnum_t; struct xfs_name { const unsigned char *name; int len; int type; }; /* * uid_t and gid_t are hard-coded to 32 bits in the inode. * Hence, an 'id' in a dquot is 32 bits.. */ typedef __uint32_t xfs_dqid_t; /* * Constants for bit manipulations. */ #define XFS_NBBYLOG 3 /* log2(NBBY) */ #define XFS_WORDLOG 2 /* log2(sizeof(xfs_rtword_t)) */ #define XFS_NBWORDLOG (XFS_NBBYLOG + XFS_WORDLOG) #define XFS_NBWORD (1 << XFS_NBWORDLOG) #define XFS_WORDMASK ((1 << XFS_WORDLOG) - 1) #endif /* __XFS_TYPES_H__ */ |