diff options
Diffstat (limited to 'fs/xfs/xfs_types.h')
| -rw-r--r-- | fs/xfs/xfs_types.h | 88 |
1 files changed, 46 insertions, 42 deletions
diff --git a/fs/xfs/xfs_types.h b/fs/xfs/xfs_types.h index d725428c9df..65c6e6650b1 100644 --- a/fs/xfs/xfs_types.h +++ b/fs/xfs/xfs_types.h @@ -18,45 +18,10 @@ #ifndef __XFS_TYPES_H__ #define __XFS_TYPES_H__ -#ifdef __KERNEL__ - -/* - * Additional type declarations for XFS - */ -typedef signed char __int8_t; -typedef unsigned char __uint8_t; -typedef signed short int __int16_t; -typedef unsigned short int __uint16_t; -typedef signed int __int32_t; -typedef unsigned int __uint32_t; -typedef signed long long int __int64_t; -typedef unsigned long long int __uint64_t; - -typedef enum { B_FALSE,B_TRUE } boolean_t; -typedef __uint32_t prid_t; /* project ID */ -typedef __uint32_t inst_t; /* an instruction */ - -typedef __s64 xfs_off_t; /* <file offset> type */ -typedef unsigned long long xfs_ino_t; /* <inode> type */ -typedef __s64 xfs_daddr_t; /* <disk address> type */ -typedef char * xfs_caddr_t; /* <core address> type */ -typedef __u32 xfs_dev_t; -typedef __u32 xfs_nlink_t; - -/* __psint_t is the same size as a pointer */ -#if (BITS_PER_LONG == 32) -typedef __int32_t __psint_t; -typedef __uint32_t __psunsigned_t; -#elif (BITS_PER_LONG == 64) -typedef __int64_t __psint_t; -typedef __uint64_t __psunsigned_t; -#else -#error BITS_PER_LONG must be 32 or 64 -#endif - -#endif /* __KERNEL__ */ +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 */ @@ -73,8 +38,6 @@ 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 __uint16_t xfs_prid_t; /* prid_t truncated to 16bits in XFS */ - /* * These types are 64 bits on disk but are either 32 or 64 bits in memory. * Disk based types: @@ -103,6 +66,7 @@ typedef __uint64_t xfs_fileoff_t; /* block number in a file */ typedef __int64_t xfs_sfiloff_t; /* signed block number in a file */ typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */ + /* * Null values for the types. */ @@ -122,6 +86,9 @@ typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */ #define NULLCOMMITLSN ((xfs_lsn_t)-1) +#define NULLFSINO ((xfs_ino_t)-1) +#define NULLAGINO ((xfs_agino_t)-1) + /* * Max values for extlen, extnum, aextnum. */ @@ -130,6 +97,26 @@ typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */ #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 @@ -147,12 +134,29 @@ typedef enum { typedef enum { XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi, - XFS_BTNUM_MAX + XFS_BTNUM_FINOi, XFS_BTNUM_MAX } xfs_btnum_t; struct xfs_name { - const char *name; - int len; + 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__ */ |