051e7cd44a
Currently xfs has a rather complicated internal scheme to allow for different directory formats in IRIX. This patch rips all code related to this out and pushes useage of the Linux filldir callback into the lowlevel directory code. This does not make the code any less portable because filldir can be used to create dirents of all possible variations (including the IRIX ones as proved by the IRIX binary emulation code under arch/mips/). This patch get rid of an unessecary copy in the readdir path, about 400 lines of code and one of the last two users of the uio structure. This version is updated to deal with dmapi aswell which greatly simplifies the get_dirattrs code. The dmapi part has been tested using the get_dirattrs tools from the xfstest dmapi suite1 with various small and large directories. SGI-PV: 968563 SGI-Modid: xfs-linux-melb:xfs-kern:29478a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
164 lines
5.3 KiB
C
164 lines
5.3 KiB
C
/*
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* Copyright (c) 2000-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef __XFS_TYPES_H__
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#define __XFS_TYPES_H__
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#ifdef __KERNEL__
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/*
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* POSIX Extensions
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*/
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typedef unsigned char uchar_t;
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typedef unsigned short ushort_t;
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typedef unsigned int uint_t;
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typedef unsigned long ulong_t;
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/*
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* Additional type declarations for XFS
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*/
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typedef signed char __int8_t;
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typedef unsigned char __uint8_t;
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typedef signed short int __int16_t;
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typedef unsigned short int __uint16_t;
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typedef signed int __int32_t;
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typedef unsigned int __uint32_t;
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typedef signed long long int __int64_t;
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typedef unsigned long long int __uint64_t;
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typedef enum { B_FALSE,B_TRUE } boolean_t;
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typedef __uint32_t prid_t; /* project ID */
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typedef __uint32_t inst_t; /* an instruction */
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typedef __s64 xfs_off_t; /* <file offset> type */
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typedef __u64 xfs_ino_t; /* <inode> type */
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typedef __s64 xfs_daddr_t; /* <disk address> type */
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typedef char * xfs_caddr_t; /* <core address> type */
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typedef __u32 xfs_dev_t;
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typedef __u32 xfs_nlink_t;
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/* __psint_t is the same size as a pointer */
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#if (BITS_PER_LONG == 32)
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typedef __int32_t __psint_t;
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typedef __uint32_t __psunsigned_t;
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#elif (BITS_PER_LONG == 64)
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typedef __int64_t __psint_t;
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typedef __uint64_t __psunsigned_t;
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#else
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#error BITS_PER_LONG must be 32 or 64
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#endif
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#endif /* __KERNEL__ */
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typedef __uint32_t xfs_agblock_t; /* blockno in alloc. group */
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typedef __uint32_t xfs_extlen_t; /* extent length in blocks */
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typedef __uint32_t xfs_agnumber_t; /* allocation group number */
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typedef __int32_t xfs_extnum_t; /* # of extents in a file */
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typedef __int16_t xfs_aextnum_t; /* # extents in an attribute fork */
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typedef __int64_t xfs_fsize_t; /* bytes in a file */
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typedef __uint64_t xfs_ufsize_t; /* unsigned bytes in a file */
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typedef __int32_t xfs_suminfo_t; /* type of bitmap summary info */
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typedef __int32_t xfs_rtword_t; /* word type for bitmap manipulations */
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typedef __int64_t xfs_lsn_t; /* log sequence number */
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typedef __int32_t xfs_tid_t; /* transaction identifier */
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typedef __uint32_t xfs_dablk_t; /* dir/attr block number (in file) */
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typedef __uint32_t xfs_dahash_t; /* dir/attr hash value */
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typedef __uint16_t xfs_prid_t; /* prid_t truncated to 16bits in XFS */
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/*
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* These types are 64 bits on disk but are either 32 or 64 bits in memory.
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* Disk based types:
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*/
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typedef __uint64_t xfs_dfsbno_t; /* blockno in filesystem (agno|agbno) */
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typedef __uint64_t xfs_drfsbno_t; /* blockno in filesystem (raw) */
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typedef __uint64_t xfs_drtbno_t; /* extent (block) in realtime area */
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typedef __uint64_t xfs_dfiloff_t; /* block number in a file */
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typedef __uint64_t xfs_dfilblks_t; /* number of blocks in a file */
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/*
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* Memory based types are conditional.
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*/
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#if XFS_BIG_BLKNOS
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typedef __uint64_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */
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typedef __uint64_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
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typedef __uint64_t xfs_rtblock_t; /* extent (block) in realtime area */
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typedef __int64_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */
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#else
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typedef __uint32_t xfs_fsblock_t; /* blockno in filesystem (agno|agbno) */
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typedef __uint32_t xfs_rfsblock_t; /* blockno in filesystem (raw) */
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typedef __uint32_t xfs_rtblock_t; /* extent (block) in realtime area */
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typedef __int32_t xfs_srtblock_t; /* signed version of xfs_rtblock_t */
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#endif
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typedef __uint64_t xfs_fileoff_t; /* block number in a file */
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typedef __int64_t xfs_sfiloff_t; /* signed block number in a file */
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typedef __uint64_t xfs_filblks_t; /* number of blocks in a file */
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typedef __uint8_t xfs_arch_t; /* architecture of an xfs fs */
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/*
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* Null values for the types.
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*/
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#define NULLDFSBNO ((xfs_dfsbno_t)-1)
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#define NULLDRFSBNO ((xfs_drfsbno_t)-1)
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#define NULLDRTBNO ((xfs_drtbno_t)-1)
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#define NULLDFILOFF ((xfs_dfiloff_t)-1)
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#define NULLFSBLOCK ((xfs_fsblock_t)-1)
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#define NULLRFSBLOCK ((xfs_rfsblock_t)-1)
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#define NULLRTBLOCK ((xfs_rtblock_t)-1)
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#define NULLFILEOFF ((xfs_fileoff_t)-1)
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#define NULLAGBLOCK ((xfs_agblock_t)-1)
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#define NULLAGNUMBER ((xfs_agnumber_t)-1)
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#define NULLEXTNUM ((xfs_extnum_t)-1)
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#define NULLCOMMITLSN ((xfs_lsn_t)-1)
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/*
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* Max values for extlen, extnum, aextnum.
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*/
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#define MAXEXTLEN ((xfs_extlen_t)0x001fffff) /* 21 bits */
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#define MAXEXTNUM ((xfs_extnum_t)0x7fffffff) /* signed int */
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#define MAXAEXTNUM ((xfs_aextnum_t)0x7fff) /* signed short */
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/*
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* Min numbers of data/attr fork btree root pointers.
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*/
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#define MINDBTPTRS 3
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#define MINABTPTRS 2
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/*
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* MAXNAMELEN is the length (including the terminating null) of
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* the longest permissible file (component) name.
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*/
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#define MAXNAMELEN 256
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typedef enum {
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XFS_LOOKUP_EQi, XFS_LOOKUP_LEi, XFS_LOOKUP_GEi
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} xfs_lookup_t;
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typedef enum {
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XFS_BTNUM_BNOi, XFS_BTNUM_CNTi, XFS_BTNUM_BMAPi, XFS_BTNUM_INOi,
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XFS_BTNUM_MAX
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} xfs_btnum_t;
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#endif /* __XFS_TYPES_H__ */
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