Logo Search packages:      
Sourcecode: parted version File versions

xfs_types.h

/*
 * Copyright (c) 2000 Silicon Graphics, Inc.  All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of version 2 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.
 * 
 * Further, this software is distributed without any warranty that it is
 * free of the rightful claim of any third person regarding infringement
 * or the like.  Any license provided herein, whether implied or
 * otherwise, applies only to this software file.  Patent licenses, if
 * any, provided herein do not apply to combinations of this program with
 * other software, or any other product whatsoever.
 * 
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write the Free Software Foundation, Inc., 59
 * Temple Place - Suite 330, Boston MA 02111-1307, USA.
 * 
 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
 * Mountain View, CA  94043, or:
 * 
 * http://www.sgi.com 
 * 
 * For further information regarding this notice, see: 
 * 
 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
 */
#ifndef __XFS_TYPES_H__
#define     __XFS_TYPES_H__

/*
 * Some types are conditional based on the selected configuration.
 * Set XFS_BIG_FILES=1 or 0 and XFS_BIG_FILESYSTEMS=1 or 0 depending
 * on the desired configuration.
 * XFS_BIG_FILES needs pgno_t to be 64 bits (64-bit kernels).
 * XFS_BIG_FILESYSTEMS needs daddr_t to be 64 bits (N32 and 64-bit kernels).
 *
 * Expect these to be set from klocaldefs, or from the machine-type
 * defs files for the normal case.
 */

#define     XFS_BIG_FILES           1
#define     XFS_BIG_FILESYSTEMS     1

typedef __uint32_t      xfs_agblock_t;    /* blockno in alloc. group */
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 __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:
 */
typedef __uint64_t      xfs_dfsbno_t;     /* blockno in filesystem (agno|agbno) */
typedef __uint64_t      xfs_drfsbno_t;    /* blockno in filesystem (raw) */
typedef     __uint64_t  xfs_drtbno_t;     /* extent (block) in realtime area */
typedef     __uint64_t  xfs_dfiloff_t;    /* block number in a file */
typedef     __uint64_t  xfs_dfilblks_t;   /* number of blocks in a file */

/*
 * Memory based types are conditional.
 */
#if XFS_BIG_FILESYSTEMS
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     __int64_t   xfs_srtblock_t;   /* signed version of xfs_rtblock_t */
#else
typedef     __uint32_t  xfs_fsblock_t;    /* blockno in filesystem (agno|agbno) */
typedef __uint32_t      xfs_rfsblock_t;   /* blockno in filesystem (raw) */
typedef __uint32_t      xfs_rtblock_t;    /* extent (block) in realtime area */
typedef     __int32_t   xfs_srtblock_t;   /* signed version of xfs_rtblock_t */
#endif
#if XFS_BIG_FILES
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 */
#else
typedef     __uint32_t  xfs_fileoff_t;    /* block number in a file */
typedef     __int32_t   xfs_sfiloff_t;    /* signed block number in a file */
typedef     __uint32_t  xfs_filblks_t;    /* number of blocks in a file */
#endif

typedef __uint8_t       xfs_arch_t;     /* architecutre of an xfs fs */

/*
 * Null values for the types.
 */
#define     NULLDFSBNO  ((xfs_dfsbno_t)-1)
#define     NULLDRFSBNO ((xfs_drfsbno_t)-1)
#define     NULLDRTBNO  ((xfs_drtbno_t)-1)
#define     NULLDFILOFF ((xfs_dfiloff_t)-1)

#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)

/*
 * 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 */

/*
 * 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_MAX
} xfs_btnum_t;


#ifdef CONFIG_PROC_FS
/*
 * XFS global statistics
 */
struct xfsstats {
# define XFSSTAT_END_EXTENT_ALLOC   4
      __uint32_t        xs_allocx;
      __uint32_t        xs_allocb;
      __uint32_t        xs_freex;
      __uint32_t        xs_freeb;
# define XFSSTAT_END_ALLOC_BTREE    (XFSSTAT_END_EXTENT_ALLOC+4)
      __uint32_t        xs_abt_lookup;
      __uint32_t        xs_abt_compare;
      __uint32_t        xs_abt_insrec;
      __uint32_t        xs_abt_delrec;
# define XFSSTAT_END_BLOCK_MAPPING  (XFSSTAT_END_ALLOC_BTREE+7)
      __uint32_t        xs_blk_mapr;
      __uint32_t        xs_blk_mapw;
      __uint32_t        xs_blk_unmap;
      __uint32_t        xs_add_exlist;
      __uint32_t        xs_del_exlist;
      __uint32_t        xs_look_exlist;
      __uint32_t        xs_cmp_exlist;
# define XFSSTAT_END_BLOCK_MAP_BTREE      (XFSSTAT_END_BLOCK_MAPPING+4)
      __uint32_t        xs_bmbt_lookup;
      __uint32_t        xs_bmbt_compare;
      __uint32_t        xs_bmbt_insrec;
      __uint32_t        xs_bmbt_delrec;
# define XFSSTAT_END_DIRECTORY_OPS  (XFSSTAT_END_BLOCK_MAP_BTREE+4)
      __uint32_t        xs_dir_lookup;
      __uint32_t        xs_dir_create;
      __uint32_t        xs_dir_remove;
      __uint32_t        xs_dir_getdents;
# define XFSSTAT_END_TRANSACTIONS   (XFSSTAT_END_DIRECTORY_OPS+3)
      __uint32_t        xs_trans_sync;
      __uint32_t        xs_trans_async;
      __uint32_t        xs_trans_empty;
# define XFSSTAT_END_INODE_OPS            (XFSSTAT_END_TRANSACTIONS+7)
      __uint32_t        xs_ig_attempts;
      __uint32_t        xs_ig_found;
      __uint32_t        xs_ig_frecycle;
      __uint32_t        xs_ig_missed;
      __uint32_t        xs_ig_dup;
      __uint32_t        xs_ig_reclaims;
      __uint32_t        xs_ig_attrchg;
# define XFSSTAT_END_LOG_OPS        (XFSSTAT_END_INODE_OPS+5)
      __uint32_t        xs_log_writes;
      __uint32_t        xs_log_blocks;
      __uint32_t        xs_log_noiclogs;
      __uint32_t        xs_log_force;
      __uint32_t        xs_log_force_sleep;
# define XFSSTAT_END_TAIL_PUSHING   (XFSSTAT_END_LOG_OPS+10)
      __uint32_t        xs_try_logspace;
      __uint32_t        xs_sleep_logspace;
      __uint32_t        xs_push_ail;
      __uint32_t        xs_push_ail_success;
      __uint32_t        xs_push_ail_pushbuf;
      __uint32_t        xs_push_ail_pinned;
      __uint32_t        xs_push_ail_locked;
      __uint32_t        xs_push_ail_flushing;
      __uint32_t        xs_push_ail_restarts;
      __uint32_t        xs_push_ail_flush;
# define XFSSTAT_END_WRITE_CONVERT  (XFSSTAT_END_TAIL_PUSHING+2)
      __uint32_t        xs_xstrat_quick;
      __uint32_t        xs_xstrat_split;
# define XFSSTAT_END_READ_WRITE_OPS (XFSSTAT_END_WRITE_CONVERT+2)
      __uint32_t        xs_write_calls;
      __uint32_t        xs_read_calls;
# define XFSSTAT_END_ATTRIBUTE_OPS  (XFSSTAT_END_READ_WRITE_OPS+4)
      __uint32_t        xs_attr_get;
      __uint32_t        xs_attr_set;
      __uint32_t        xs_attr_remove;
      __uint32_t        xs_attr_list;
# define XFSSTAT_END_QUOTA_OPS            (XFSSTAT_END_ATTRIBUTE_OPS+8)
      __uint32_t        xs_qm_dqreclaims;
      __uint32_t        xs_qm_dqreclaim_misses;
      __uint32_t        xs_qm_dquot_dups;
      __uint32_t        xs_qm_dqcachemisses;
      __uint32_t        xs_qm_dqcachehits;
      __uint32_t        xs_qm_dqwants;
      __uint32_t        xs_qm_dqshake_reclaims;
      __uint32_t        xs_qm_dqinact_reclaims;
# define XFSSTAT_END_INODE_CLUSTER  (XFSSTAT_END_QUOTA_OPS+3)
      __uint32_t        xs_iflush_count;
      __uint32_t        xs_icluster_flushcnt;
      __uint32_t        xs_icluster_flushinode;
# define XFSSTAT_END_VNODE_OPS            (XFSSTAT_END_INODE_CLUSTER+8)
      __uint32_t        vn_active;  /* # vnodes not on free lists */
      __uint32_t        vn_alloc;   /* # times vn_alloc called */
      __uint32_t        vn_get;           /* # times vn_get called */
      __uint32_t        vn_hold;    /* # times vn_hold called */
      __uint32_t        vn_rele;    /* # times vn_rele called */
      __uint32_t        vn_reclaim; /* # times vn_reclaim called */
      __uint32_t        vn_remove;  /* # times vn_remove called */
      __uint32_t        vn_free;    /* # times vn_free called */
      struct xfsstats_xpc {
            __uint64_t  xs_xstrat_bytes;
            __uint64_t  xs_write_bytes;
            __uint64_t  xs_read_bytes;
      } xpc;
} xfsstats;

# define XFS_STATS_INC(count)       ( xfsstats.##count ++ )
# define XFS_STATS_DEC(count)       ( xfsstats.##count -- )
# define XFS_STATS_ADD(count, inc)  ( xfsstats.##count += (inc) )
# define XFS_STATS64_INC(count)           ( xfsstats.xpc.##count ++ )
# define XFS_STATS64_ADD(count, inc)      ( xfsstats.xpc.##count += (inc) )
#else /* !CONFIG_PROC_FS */
# define XFS_STATS_INC(count)
# define XFS_STATS_DEC(count)
# define XFS_STATS_ADD(count, inc)
# define XFS_STATS64_INC(count)
# define XFS_STATS64_ADD(count, inc)
#endif      /* !CONFIG_PROC_FS */


#ifdef __KERNEL__

/* juggle IRIX device numbers - still used in ondisk structures */

#define IRIX_DEV_BITSMAJOR      14
#define IRIX_DEV_BITSMINOR      18 
#define IRIX_DEV_MAXMAJ         0x1ff 
#define IRIX_DEV_MAXMIN         0x3ffff
#define IRIX_DEV_MAJOR(dev)     ((int)(((unsigned)(dev)>>IRIX_DEV_BITSMINOR) \
                                    & IRIX_DEV_MAXMAJ))
#define IRIX_DEV_MINOR(dev)     ((int)((dev)&IRIX_DEV_MAXMIN))
#define IRIX_MKDEV(major,minor) ((xfs_dev_t)(((major)<<IRIX_DEV_BITSMINOR) \
                                    | (minor&IRIX_DEV_MAXMIN)))
                                    
#define IRIX_DEV_TO_KDEVT(dev)  MKDEV(IRIX_DEV_MAJOR(dev),IRIX_DEV_MINOR(dev))
#define IRIX_DEV_TO_DEVT(dev)   ((IRIX_DEV_MAJOR(dev)<<8)|IRIX_DEV_MINOR(dev))

/* __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


/*
 * struct for passing owner/requestor id
 */
typedef struct flid {
#ifdef CELL_CAPABLE
        pid_t   fl_pid;
        sysid_t fl_sysid;
#endif
} flid_t;

#endif      /* __KERNEL__ */

#endif      /* !__XFS_TYPES_H */

Generated by  Doxygen 1.6.0   Back to index