include/libxfs.h

   1 /*
   2  * Copyright (c) 2000-2002 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 __LIBXFS_H__
  33 #define __LIBXFS_H__
  34
  35 #include "platform_defs.h"
  36
  37 #include <xfs_fs.h>
  38 #include <xfs_types.h>
  39 #include <arch.h>
  40 #include <xfs_arch.h>
  41 #include <xfs_sb.h>
  42 #include <xfs_bit.h>
  43 #include <xfs_inum.h>
  44 #include <xfs_ag.h>
  45 #include <xfs_da_btree.h>
  46 #include <xfs_bmap_btree.h>
  47 #include <xfs_alloc_btree.h>
  48 #include <xfs_ialloc_btree.h>
  49 #include <xfs_alloc.h>
  50 #include <xfs_ialloc.h>
  51 #include <xfs_rtalloc.h>
  52 #include <xfs_btree.h>
  53 #include <xfs_dir.h>
  54 #include <xfs_dir_sf.h>
  55 #include <xfs_dir_leaf.h>
  56 #include <xfs_dir2.h>
  57 #include <xfs_dir2_data.h>
  58 #include <xfs_dir2_leaf.h>
  59 #include <xfs_dir2_block.h>
  60 #include <xfs_dir2_node.h>
  61 #include <xfs_dir2_sf.h>
  62 #include <xfs_attr_sf.h>
  63 #include <xfs_dinode.h>
  64 #include <xfs_attr_leaf.h>
  65 #include <xfs_quota.h>
  66 #include <xfs_dqblk.h>
  67 #include <xfs_mount.h>
  68 #include <xfs_trans_space.h>
  69 #include <xfs_inode.h>
  70 #include <xfs_buf_item.h>
  71 #include <xfs_inode_item.h>
  72 #include <xfs_cred.h>
  73 #include <xfs_bmap.h>
  74 #include <xfs_imap.h>
  75 #include <xfs_log.h>
  76 #include <xfs_log_priv.h>
  77
  78 /*
  79  * Argument structure for libxfs_init().
  80  */
  81 typedef struct {
  82                                 /* input parameters */
  83         char            *volname;       /* pathname of volume */
  84         char            *dname;         /* pathname of data "subvolume" */
  85         char            *logname;       /* pathname of log "subvolume" */
  86         char            *rtname;        /* pathname of realtime "subvolume" */
  87         int             isreadonly;     /* filesystem is only read in applic */
  88         int             disfile;        /* data "subvolume" is a regular file */        int             dcreat;         /* try to create data subvolume */
  89         int             lisfile;        /* log "subvolume" is a regular file */
  90         int             lcreat;         /* try to create log subvolume */
  91         int             risfile;        /* realtime "subvolume" is a reg file */        int             rcreat;         /* try to create realtime subvolume */
  92         char            *notvolmsg;     /* format string for not XLV message */
  93         int             notvolok;       /* set if not XLV => try data */
  94                                 /* output results */
  95         dev_t           ddev;           /* device for data subvolume */
  96         dev_t           logdev;         /* device for log subvolume */
  97         dev_t           rtdev;          /* device for realtime subvolume */
  98         long long       dsize;          /* size of data subvolume (BBs) */
  99         long long       logBBsize;      /* size of log subvolume (BBs) */
 100                                         /* (blocks allocated for use as
 101                                          * log is stored in mount structure) */
 102         long long       logBBstart;     /* start block of log subvolume (BBs) */        long long       rtsize;         /* size of realtime subvolume (BBs) */
 103         int             dfd;            /* data subvolume file descriptor */
 104         int             logfd;          /* log subvolume file descriptor */
 105         int             rtfd;           /* realtime subvolume file descriptor */
 106         int             setblksize;     /* attempt to set device block size */
 107 } libxfs_init_t;
 108
 109 #define LIBXFS_ISREADONLY       0x0069  /* disallow all mounted filesystems */
 110 #define LIBXFS_ISINACTIVE       0x6900  /* allow mounted only if mounted ro */
 111
 112 extern char     *progname;
 113 extern int      libxfs_init (libxfs_init_t *);
 114 extern int      libxfs_device_to_fd (dev_t);
 115 extern dev_t    libxfs_device_open (char *, int, int, int);
 116 extern void     libxfs_device_zero (dev_t, xfs_daddr_t, uint);
 117 extern void     libxfs_device_close (dev_t);
 118
 119 /* check or write log footer: specify device, log size in blocks & uuid */
 120 extern int      libxfs_log_clear (dev_t, xfs_daddr_t, uint, uuid_t *, int);
 121
 122 /*
 123  * Define a user-level mount structure with all we need
 124  * in order to make use of the numerous XFS_* macros.
 125  */
 126 struct xfs_inode;
 127 typedef struct xfs_mount {
 128         xfs_sb_t                m_sb;           /* copy of fs superblock */
 129         int                     m_bsize;        /* fs logical block size */
 130         xfs_agnumber_t          m_agfrotor;     /* last ag where space found */
 131         xfs_agnumber_t          m_agirotor;     /* last ag dir inode alloced */
 132         xfs_agnumber_t  m_maxagi;               /* highest inode alloc group */
 133         uint                    m_rsumlevels;   /* rt summary levels */
 134         uint                    m_rsumsize;     /* size of rt summary, bytes */
 135         struct xfs_inode        *m_rbmip;       /* pointer to bitmap inode */
 136         struct xfs_inode        *m_rsumip;      /* pointer to summary inode */
 137         struct xfs_inode        *m_rootip;      /* pointer to root directory */
 138         dev_t                   m_dev;
 139         dev_t                   m_logdev;
 140         dev_t                   m_rtdev;
 141         __uint8_t               m_dircook_elog; /* log d-cookie entry bits */
 142         __uint8_t               m_blkbit_log;   /* blocklog + NBBY */
 143         __uint8_t               m_blkbb_log;    /* blocklog - BBSHIFT */
 144         __uint8_t               m_agno_log;     /* log #ag's */
 145         __uint8_t               m_agino_log;    /* #bits for agino in inum */
 146         __uint16_t              m_inode_cluster_size;/* min inode buf size */
 147         uint                    m_blockmask;    /* sb_blocksize-1 */
 148         uint                    m_blockwsize;   /* sb_blocksize in words */
 149         uint                    m_blockwmask;   /* blockwsize-1 */
 150         uint                    m_alloc_mxr[2]; /* XFS_ALLOC_BLOCK_MAXRECS */
 151         uint                    m_alloc_mnr[2]; /* XFS_ALLOC_BLOCK_MINRECS */
 152         uint                    m_bmap_dmxr[2]; /* XFS_BMAP_BLOCK_DMAXRECS */
 153         uint                    m_bmap_dmnr[2]; /* XFS_BMAP_BLOCK_DMINRECS */
 154         uint                    m_inobt_mxr[2]; /* XFS_INOBT_BLOCK_MAXRECS */
 155         uint                    m_inobt_mnr[2]; /* XFS_INOBT_BLOCK_MINRECS */
 156         uint                    m_ag_maxlevels; /* XFS_AG_MAXLEVELS */
 157         uint                    m_bm_maxlevels[2]; /* XFS_BM_MAXLEVELS */
 158         uint                    m_in_maxlevels; /* XFS_IN_MAXLEVELS */
 159         xfs_perag_t             *m_perag;       /* per-ag accounting info */
 160         uint                    m_flags;        /* global mount flags */
 161         uint                    m_qflags;       /* quota status flags */
 162         uint                    m_attroffset;   /* inode attribute offset */
 163         int                     m_da_node_ents; /* how many entries in danode */
 164         int                     m_ialloc_inos;  /* inodes in inode allocation */
 165         int                     m_ialloc_blks;  /* blocks in inode allocation */
 166         int                     m_litino;       /* size of inode union area */
 167         int                     m_inoalign_mask;/* mask sb_inoalignmt if used */
 168         xfs_trans_reservations_t m_reservations;/* precomputed res values */
 169         __uint64_t              m_maxicount;    /* maximum inode count */
 170         int                     m_dalign;       /* stripe unit */
 171         int                     m_swidth;       /* stripe width */
 172         int                     m_sinoalign;    /* stripe unit inode alignmnt */
 173         int                     m_dir_magicpct; /* 37% of the dir blocksize */
 174         __uint8_t               m_dirversion;   /* 1 or 2 */
 175         int                     m_dirblksize;   /* directory block sz--bytes */
 176         int                     m_dirblkfsbs;   /* directory block sz--fsbs */
 177         xfs_dablk_t             m_dirdatablk;   /* blockno of dir data v2 */
 178         xfs_dablk_t             m_dirleafblk;   /* blockno of dir non-data v2 */
 179         xfs_dablk_t             m_dirfreeblk;   /* blockno of dirfreeindex v2 */
 180 } xfs_mount_t;
 181
 182
 183 extern xfs_mount_t      *libxfs_mount (xfs_mount_t *, xfs_sb_t *,
 184                                 dev_t, dev_t, dev_t, int);
 185 extern void     libxfs_mount_common (xfs_mount_t *, xfs_sb_t *);
 186 extern void     libxfs_initialize_perag (xfs_mount_t *, int);
 187 extern void     libxfs_umount (xfs_mount_t *);
 188 extern int      libxfs_rtmount_init (xfs_mount_t *);
 189 extern void     libxfs_alloc_compute_maxlevels (xfs_mount_t *);
 190 extern void     libxfs_bmap_compute_maxlevels (xfs_mount_t *, int);
 191 extern void     libxfs_ialloc_compute_maxlevels (xfs_mount_t *);
 192 extern void     libxfs_trans_init (xfs_mount_t *);
 193
 194
 195 /*
 196  * Simple I/O interface
 197  */
 198 typedef struct xfs_buf {
 199         xfs_daddr_t     b_blkno;
 200         unsigned        b_bcount;
 201         dev_t           b_dev;
 202         void            *b_fsprivate;
 203         void            *b_fsprivate2;
 204         void            *b_fsprivate3;
 205         char            *b_addr;
 206         /* b_addr must be the last field */
 207 } xfs_buf_t;
 208 #define XFS_BUF_PTR(bp)                 ((bp)->b_addr)
 209 #define xfs_buf_offset(bp, offset)      (XFS_BUF_PTR(bp) + (offset))
 210 #define XFS_BUF_ADDR(bp)                ((bp)->b_blkno)
 211 #define XFS_BUF_COUNT(bp)               ((bp)->b_bcount)
 212 #define XFS_BUF_TARGET(bp)              ((bp)->b_dev)
 213 #define XFS_BUF_SET_PTR(bp,p,cnt)       ((bp)->b_addr = (char *)(p)); \
 214                                                 XFS_BUF_SETCOUNT(bp,cnt)
 215 #define XFS_BUF_SET_ADDR(bp,blk)        ((bp)->b_blkno = (blk))
 216 #define XFS_BUF_SETCOUNT(bp,cnt)        ((bp)->b_bcount = (cnt))
 217
 218 #define XFS_BUF_FSPRIVATE(bp,type)      ((type)(bp)->b_fsprivate)
 219 #define XFS_BUF_SET_FSPRIVATE(bp,val)   (bp)->b_fsprivate = (void *)(val)
 220 #define XFS_BUF_FSPRIVATE2(bp,type)     ((type)(bp)->b_fsprivate2)
 221 #define XFS_BUF_SET_FSPRIVATE2(bp,val)  (bp)->b_fsprivate2 = (void *)(val)
 222 #define XFS_BUF_FSPRIVATE3(bp,type)     ((type)(bp)->b_fsprivate3)
 223 #define XFS_BUF_SET_FSPRIVATE3(bp,val)  (bp)->b_fsprivate3 = (void *)(val)
 224
 225 extern xfs_buf_t        *libxfs_getbuf (dev_t, xfs_daddr_t, int);
 226 extern xfs_buf_t        *libxfs_readbuf (dev_t, xfs_daddr_t, int, int);
 227 extern xfs_buf_t        *libxfs_getsb (xfs_mount_t *, int);
 228 extern int      libxfs_readbufr (dev_t, xfs_daddr_t, xfs_buf_t *, int, int);
 229 extern int      libxfs_writebuf (xfs_buf_t *, int);
 230 extern int      libxfs_writebuf_int (xfs_buf_t *, int);
 231 extern void     libxfs_putbuf (xfs_buf_t *);
 232
 233
 234 /*
 235  * Transaction interface
 236  */
 237
 238 typedef struct xfs_log_item {
 239         struct xfs_log_item_desc        *li_desc;       /* ptr to current desc*/
 240         struct xfs_mount                *li_mountp;     /* ptr to fs mount */
 241         uint                            li_type;        /* item type */
 242 } xfs_log_item_t;
 243
 244 typedef struct xfs_inode_log_item {
 245         xfs_log_item_t          ili_item;               /* common portion */
 246         struct xfs_inode        *ili_inode;             /* inode pointer */
 247         unsigned short          ili_flags;              /* misc flags */
 248         unsigned int            ili_last_fields;        /* fields when flushed*/
 249         xfs_inode_log_format_t  ili_format;             /* logged structure */
 250 } xfs_inode_log_item_t;
 251
 252 typedef struct xfs_buf_log_item {
 253         xfs_log_item_t          bli_item;       /* common item structure */
 254         struct xfs_buf          *bli_buf;       /* real buffer pointer */
 255         unsigned int            bli_flags;      /* misc flags */
 256         unsigned int            bli_recur;      /* recursion count */
 257         xfs_buf_log_format_t    bli_format;     /* in-log header */
 258 } xfs_buf_log_item_t;
 259
 260 #include <xfs_trans.h>
 261
 262 typedef struct xfs_trans {
 263         unsigned int    t_type;                 /* transaction type */
 264         xfs_mount_t     *t_mountp;              /* ptr to fs mount struct */
 265         unsigned int    t_flags;                /* misc flags */
 266         long            t_icount_delta;         /* superblock icount change */
 267         long            t_ifree_delta;          /* superblock ifree change */
 268         long            t_fdblocks_delta;       /* superblock fdblocks chg */
 269         long            t_frextents_delta;      /* superblock freextents chg */
 270         unsigned int    t_items_free;           /* log item descs free */
 271         xfs_log_item_chunk_t    t_items;        /* first log item desc chunk */
 272 } xfs_trans_t;
 273
 274 extern xfs_trans_t      *libxfs_trans_alloc (xfs_mount_t *, int);
 275 extern xfs_trans_t      *libxfs_trans_dup (xfs_trans_t *);
 276 extern int      libxfs_trans_reserve (xfs_trans_t *, uint,uint,uint,uint,uint);
 277 extern int      libxfs_trans_commit (xfs_trans_t *, uint, xfs_lsn_t *);
 278 extern void     libxfs_trans_cancel (xfs_trans_t *, int);
 279 extern void     libxfs_mod_sb (xfs_trans_t *, __int64_t);
 280
 281 extern int      libxfs_trans_iget (xfs_mount_t *, xfs_trans_t *, xfs_ino_t,
 282                                 uint, struct xfs_inode **);
 283 extern void     libxfs_trans_iput(xfs_trans_t *, struct xfs_inode *, uint);
 284 extern void     libxfs_trans_ijoin (xfs_trans_t *, struct xfs_inode *, uint);
 285 extern void     libxfs_trans_ihold (xfs_trans_t *, struct xfs_inode *);
 286 extern void     libxfs_trans_log_inode (xfs_trans_t *, struct xfs_inode *,
 287                                 uint);
 288
 289 extern void     libxfs_trans_brelse (xfs_trans_t *, struct xfs_buf *);
 290 extern void     libxfs_trans_binval (xfs_trans_t *, struct xfs_buf *);
 291 extern void     libxfs_trans_bjoin (xfs_trans_t *, struct xfs_buf *);
 292 extern void     libxfs_trans_bhold (xfs_trans_t *, struct xfs_buf *);
 293 extern void     libxfs_trans_log_buf (xfs_trans_t *, struct xfs_buf *,
 294                                 uint, uint);
 295 extern xfs_buf_t        *libxfs_trans_get_buf (xfs_trans_t *, dev_t,
 296                                 xfs_daddr_t, int, uint);
 297 extern int      libxfs_trans_read_buf (xfs_mount_t *, xfs_trans_t *, dev_t,
 298                                 xfs_daddr_t, int, uint, struct xfs_buf **);
 299
 300
 301 /*
 302  * Simple memory interface
 303  */
 304 typedef struct xfs_zone {
 305         int     zone_unitsize;  /* Size in bytes of zone unit           */
 306         char    *zone_name;     /* tag name                             */
 307         int     allocated;      /* debug: How many currently allocated  */
 308 } xfs_zone_t;
 309
 310 extern xfs_zone_t       *libxfs_zone_init (int, char *);
 311 extern void     *libxfs_zone_zalloc (xfs_zone_t *);
 312 extern void     libxfs_zone_free (xfs_zone_t *, void *);
 313 extern void     *libxfs_malloc (size_t);
 314 extern void     libxfs_free (void *);
 315 extern void     *libxfs_realloc (void *, size_t);
 316
 317
 318 /*
 319  * Inode interface
 320  */
 321 struct xfs_inode_log_item;
 322 typedef struct xfs_inode {
 323         xfs_mount_t             *i_mount;       /* fs mount struct ptr */
 324         xfs_ino_t               i_ino;          /* inode number (agno/agino) */
 325         xfs_daddr_t             i_blkno;        /* blkno of inode buffer */
 326         dev_t                   i_dev;          /* dev for this inode */
 327         ushort                  i_len;          /* len of inode buffer */
 328         ushort                  i_boffset;      /* off of inode in buffer */
 329         xfs_ifork_t             *i_afp;         /* attribute fork pointer */
 330         xfs_ifork_t             i_df;           /* data fork */
 331         struct xfs_trans        *i_transp;      /* ptr to owning transaction */
 332         struct xfs_inode_log_item *i_itemp;     /* logging information */
 333         unsigned int            i_delayed_blks; /* count of delay alloc blks */
 334         xfs_dinode_core_t       i_d;            /* most of ondisk inode */
 335 } xfs_inode_t;
 336
 337 typedef struct {
 338         uid_t   cr_uid;
 339         gid_t   cr_gid;
 340 } cred_t;
 341
 342 extern int      libxfs_inode_alloc (xfs_trans_t **, xfs_inode_t *, mode_t,
 343                                 ushort, dev_t, cred_t *, xfs_inode_t **);
 344 extern void     libxfs_trans_inode_alloc_buf (xfs_trans_t *, xfs_buf_t *);
 345
 346 extern void     libxfs_idata_realloc (xfs_inode_t *, int, int);
 347 extern int      libxfs_iread (xfs_mount_t *, xfs_trans_t *, xfs_ino_t,
 348                                 xfs_inode_t **, xfs_daddr_t);
 349 extern void     libxfs_ichgtime (xfs_inode_t *, int);
 350 extern int      libxfs_iflush_int (xfs_inode_t *, xfs_buf_t *);
 351 extern int      libxfs_itobp (xfs_mount_t *, xfs_trans_t *, xfs_inode_t *,
 352                                 xfs_dinode_t **, xfs_buf_t **, xfs_daddr_t);
 353 extern int      libxfs_iget (xfs_mount_t *, xfs_trans_t *, xfs_ino_t,
 354                                 uint, xfs_inode_t **, xfs_daddr_t);
 355 extern void     libxfs_iput (xfs_inode_t *, uint);
 356
 357
 358 /*
 359  * Directory interface
 360  */
 361 extern void     libxfs_dir_mount (xfs_mount_t *);
 362 extern void     libxfs_dir2_mount (xfs_mount_t *);
 363 extern int      libxfs_dir_init (xfs_trans_t *, xfs_inode_t *, xfs_inode_t *);
 364 extern int      libxfs_dir2_init (xfs_trans_t *, xfs_inode_t *, xfs_inode_t *);
 365 extern int      libxfs_dir_createname (xfs_trans_t *, xfs_inode_t *, char *,
 366                                 int, xfs_ino_t, xfs_fsblock_t *,
 367                                 xfs_bmap_free_t *, xfs_extlen_t);
 368 extern int      libxfs_dir2_createname (xfs_trans_t *, xfs_inode_t *, char *,
 369                                 int, xfs_ino_t, xfs_fsblock_t *,
 370                                 xfs_bmap_free_t *, xfs_extlen_t);
 371 extern int      libxfs_dir_lookup (xfs_trans_t *, xfs_inode_t *,
 372                                 char *, int, xfs_ino_t *);
 373 extern int      libxfs_dir2_lookup (xfs_trans_t *, xfs_inode_t *,
 374                                 char *, int, xfs_ino_t *);
 375 extern int      libxfs_dir_replace (xfs_trans_t *, xfs_inode_t *,
 376                                 char *, int, xfs_ino_t, xfs_fsblock_t *,
 377                                 xfs_bmap_free_t *, xfs_extlen_t);
 378 extern int      libxfs_dir2_replace (xfs_trans_t *, xfs_inode_t *,
 379                                 char *, int, xfs_ino_t, xfs_fsblock_t *,
 380                                 xfs_bmap_free_t *, xfs_extlen_t);
 381 extern int      libxfs_dir_removename (xfs_trans_t *, xfs_inode_t *,
 382                                 char *, int, xfs_ino_t, xfs_fsblock_t *,
 383                                 xfs_bmap_free_t *, xfs_extlen_t);
 384 extern int      libxfs_dir2_removename (xfs_trans_t *, xfs_inode_t *,
 385                                 char *, int, xfs_ino_t, xfs_fsblock_t *,
 386                                 xfs_bmap_free_t *, xfs_extlen_t);
 387 extern int      libxfs_dir_bogus_removename (xfs_trans_t *, xfs_inode_t *,
 388                                 char *, xfs_fsblock_t *, xfs_bmap_free_t *,
 389                                 xfs_extlen_t, xfs_dahash_t, int);
 390 extern int      libxfs_dir2_bogus_removename (xfs_trans_t *, xfs_inode_t *,
 391                                 char *, xfs_fsblock_t *, xfs_bmap_free_t *,
 392                                 xfs_extlen_t, xfs_dahash_t, int);
 393
 394
 395 /*
 396  * Block map interface
 397  */
 398 extern int      libxfs_bmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t,
 399                                 xfs_filblks_t, int, xfs_fsblock_t *,
 400                                 xfs_extlen_t, xfs_bmbt_irec_t *, int *,
 401                                 xfs_bmap_free_t *);
 402 extern int      libxfs_bmap_finish (xfs_trans_t **, xfs_bmap_free_t *,
 403                                 xfs_fsblock_t, int *);
 404 extern int      libxfs_bmap_next_offset (xfs_trans_t *, xfs_inode_t *,
 405                                 xfs_fileoff_t *, int);
 406 extern int      libxfs_bunmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t,
 407                                 xfs_filblks_t, int, xfs_extnum_t,
 408                                 xfs_fsblock_t *, xfs_bmap_free_t *, int *);
 409 extern void     libxfs_bmap_del_free (xfs_bmap_free_t *,
 410                                 xfs_bmap_free_item_t *, xfs_bmap_free_item_t *);
 411
 412
 413 /*
 414  * All other routines we want to keep common...
 415  */
 416
 417 extern int      libxfs_highbit32 (__uint32_t);
 418 extern int      libxfs_highbit64 (__uint64_t);
 419 extern uint     libxfs_da_log2_roundup (uint);
 420
 421 extern void     libxfs_xlate_sb (void *, xfs_sb_t *, int, xfs_arch_t,
 422                                 __int64_t);
 423 extern void     libxfs_xlate_dinode_core (xfs_caddr_t buf,
 424                                 xfs_dinode_core_t *, int, xfs_arch_t);
 425
 426 extern int      libxfs_alloc_fix_freelist (xfs_alloc_arg_t *, int);
 427 extern int      libxfs_alloc_file_space (xfs_inode_t *, xfs_off_t,
 428                                 xfs_off_t, int, int);
 429
 430 extern xfs_dahash_t     libxfs_da_hashname (uchar_t *, int);
 431 extern int      libxfs_attr_leaf_newentsize (xfs_da_args_t *, int, int *);
 432
 433 extern xfs_filblks_t    libxfs_bmbt_get_blockcount (xfs_bmbt_rec_t *);
 434 extern xfs_fileoff_t    libxfs_bmbt_get_startoff (xfs_bmbt_rec_t *);
 435 extern void     libxfs_bmbt_get_all (xfs_bmbt_rec_t *, xfs_bmbt_irec_t *);
 436
 437 extern int      libxfs_free_extent (xfs_trans_t *, xfs_fsblock_t, xfs_extlen_t);
 438 extern int      libxfs_rtfree_extent (xfs_trans_t *, xfs_rtblock_t,
 439                                 xfs_extlen_t);
 440
 441 /* Directory/Attribute routines used by xfs_repair */
 442 extern void     libxfs_da_bjoin (xfs_trans_t *, xfs_dabuf_t *);
 443 extern int      libxfs_da_shrink_inode (xfs_da_args_t *, xfs_dablk_t,
 444                                 xfs_dabuf_t *);
 445 extern int      libxfs_da_grow_inode (xfs_da_args_t *, xfs_dablk_t *);
 446 extern void     libxfs_da_bhold (xfs_trans_t *, xfs_dabuf_t *);
 447 extern void     libxfs_da_brelse (xfs_trans_t *, xfs_dabuf_t *);
 448 extern int      libxfs_da_read_bufr (xfs_trans_t *, xfs_inode_t *, xfs_dablk_t,
 449                                 xfs_daddr_t, xfs_dabuf_t **, int);
 450 extern int      libxfs_da_read_buf (xfs_trans_t *, xfs_inode_t *,
 451                                 xfs_dablk_t, xfs_daddr_t, xfs_dabuf_t **, int);
 452 extern int      libxfs_da_get_buf (xfs_trans_t *, xfs_inode_t *,
 453                                 xfs_dablk_t, xfs_daddr_t, xfs_dabuf_t **, int);
 454 extern void     libxfs_da_log_buf (xfs_trans_t *, xfs_dabuf_t *, uint, uint);
 455 extern int      libxfs_dir2_shrink_inode (xfs_da_args_t *, xfs_dir2_db_t,
 456                                 xfs_dabuf_t *);
 457 extern int      libxfs_dir2_grow_inode (xfs_da_args_t *, int, xfs_dir2_db_t *);
 458 extern int      libxfs_dir2_isleaf (xfs_trans_t *, xfs_inode_t *, int *);
 459 extern int      libxfs_dir2_isblock (xfs_trans_t *, xfs_inode_t *, int *);
 460 extern void     libxfs_dir2_data_use_free (xfs_trans_t *, xfs_dabuf_t *,
 461                                 xfs_dir2_data_unused_t *, xfs_dir2_data_aoff_t,
 462                                 xfs_dir2_data_aoff_t, int *, int *);
 463 extern void     libxfs_dir2_data_make_free (xfs_trans_t *, xfs_dabuf_t *,
 464                                 xfs_dir2_data_aoff_t, xfs_dir2_data_aoff_t,
 465                                 int *, int *);
 466 extern void     libxfs_dir2_data_log_entry (xfs_trans_t *, xfs_dabuf_t *,
 467                                 xfs_dir2_data_entry_t *);
 468 extern void     libxfs_dir2_data_log_header (xfs_trans_t *, xfs_dabuf_t *);
 469 extern void     libxfs_dir2_data_freescan (xfs_mount_t *, xfs_dir2_data_t *,
 470                                 int *, char *);
 471 extern void     libxfs_dir2_free_log_bests (xfs_trans_t *, xfs_dabuf_t *,
 472                                 int, int);
 473
 474 /* Shared utility routines */
 475 extern unsigned int     libxfs_log2_roundup(unsigned int i);
 476
 477 #endif  /* __LIBXFS_H__ */