libxfs/xfs.h

   1 /*
   2  * Copyright (c) 2000-2005 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
  33 /*
  34  * This header is effectively a "namespace multiplexor" for the
  35  * user level XFS code.  It provides all of the necessary stuff
  36  * such that we can build some parts of the XFS kernel code in
  37  * user space in a controlled fashion, and translates the names
  38  * used in the kernel into the names which libxfs is going to
  39  * make available to user tools.
  40  *
  41  * It should only ever be #include'd by XFS "kernel" code being
  42  * compiled in user space.
  43  *
  44  * Our goals here are to...
  45  *      o  "share" large amounts of complex code between user and
  46  *         kernel space;
  47  *      o  shield the user tools from changes in the bleeding
  48  *         edge kernel code, merging source changes when
  49  *         convenient and not immediately (no symlinks);
  50  *      o  i.e. be able to merge changes to the kernel source back
  51  *         into the affected user tools in a controlled fashion;
  52  *      o  provide a _minimalist_ life-support system for kernel
  53  *         code in user land, not the "everything + the kitchen
  54  *         sink" model which libsim had mutated into;
  55  *      o  allow the kernel code to be completely free of code
  56  *         specifically there to support the user level build.
  57  */
  58
  59 #include <xfs/libxfs.h>
  60
  61 /*
  62  * Map XFS kernel routine names to libxfs.h names
  63  */
  64
  65 #define xfs_xlatesb                     libxfs_xlate_sb
  66 #define xfs_xlate_dinode_core           libxfs_xlate_dinode_core
  67 #define xfs_bmbt_get_all                libxfs_bmbt_get_all
  68 #if __BYTE_ORDER != __BIG_ENDIAN
  69 #define xfs_bmbt_disk_get_all           libxfs_bmbt_disk_get_all
  70 #else
  71 #define xfs_bmbt_disk_get_all           libxfs_bmbt_get_all
  72 #endif
  73 #define xfs_da_hashname                 libxfs_da_hashname
  74 #define xfs_da_log2_roundup             libxfs_da_log2_roundup
  75 #define xfs_highbit32                   libxfs_highbit32
  76 #define xfs_highbit64                   libxfs_highbit64
  77 #define xfs_alloc_compute_maxlevels     libxfs_alloc_compute_maxlevels
  78 #define xfs_bmap_compute_maxlevels      libxfs_bmap_compute_maxlevels
  79 #define xfs_ialloc_compute_maxlevels    libxfs_ialloc_compute_maxlevels
  80
  81 #define xfs_dir_init                    libxfs_dir_init
  82 #define xfs_dir2_init                   libxfs_dir2_init
  83 #define xfs_dir_mount                   libxfs_dir_mount
  84 #define xfs_dir2_mount                  libxfs_dir2_mount
  85 #define xfs_dir_createname              libxfs_dir_createname
  86 #define xfs_dir2_createname             libxfs_dir2_createname
  87 #define xfs_dir_lookup                  libxfs_dir_lookup
  88 #define xfs_dir2_lookup                 libxfs_dir2_lookup
  89 #define xfs_dir_replace                 libxfs_dir_replace
  90 #define xfs_dir2_replace                libxfs_dir2_replace
  91 #define xfs_dir_removename              libxfs_dir_removename
  92 #define xfs_dir2_removename             libxfs_dir2_removename
  93 #define xfs_dir_bogus_removename        libxfs_dir_bogus_removename
  94 #define xfs_dir2_bogus_removename       libxfs_dir2_bogus_removename
  95 #define xfs_dir_shortform_to_leaf       libxfs_dir_shortform_to_leaf
  96 #define xfs_dir2_sf_to_block            libxfs_dir2_sf_to_block
  97 #define XFS_DIR_SHORTFORM_TO_SINGLE(mp, daargs) XFS_DIR_IS_V2(mp) ? \
  98                                         libxfs_dir2_sf_to_block(daargs) : \
  99                                         libxfs_dir_shortform_to_leaf(daargs);
 100
 101 #define xfs_mount_common                libxfs_mount_common
 102 #define xfs_initialize_perag            libxfs_initialize_perag
 103 #define xfs_rtmount_init                libxfs_rtmount_init
 104 #define xfs_alloc_fix_freelist          libxfs_alloc_fix_freelist
 105 #define xfs_iread                       libxfs_iread
 106 #define xfs_ialloc                      libxfs_ialloc
 107 #define xfs_idata_realloc               libxfs_idata_realloc
 108 #define xfs_idestroy_fork               libxfs_idestroy_fork
 109 #define xfs_itobp                       libxfs_itobp
 110 #define xfs_ichgtime                    libxfs_ichgtime
 111 #define xfs_bmapi                       libxfs_bmapi
 112 #define xfs_bmap_finish                 libxfs_bmap_finish
 113 #define xfs_bmap_del_free               libxfs_bmap_del_free
 114 #define xfs_bunmapi                     libxfs_bunmapi
 115 #define xfs_free_extent                 libxfs_free_extent
 116 #define xfs_rtfree_extent               libxfs_rtfree_extent
 117 #define xfs_mod_sb                      libxfs_mod_sb
 118 #define xfs_mod_incore_sb               libxfs_mod_incore_sb
 119
 120 #define xfs_trans_init                  libxfs_trans_init
 121 #define xfs_trans_dup                   libxfs_trans_dup
 122 #define xfs_trans_iget                  libxfs_trans_iget
 123 #define xfs_trans_ijoin                 libxfs_trans_ijoin
 124 #define xfs_trans_ihold                 libxfs_trans_ihold
 125 #define xfs_trans_bjoin                 libxfs_trans_bjoin
 126 #define xfs_trans_bhold                 libxfs_trans_bhold
 127 #define xfs_trans_alloc                 libxfs_trans_alloc
 128 #define xfs_trans_commit                libxfs_trans_commit
 129 #define xfs_trans_cancel                libxfs_trans_cancel
 130 #define xfs_trans_mod_sb                libxfs_trans_mod_sb
 131 #define xfs_trans_reserve               libxfs_trans_reserve
 132 #define xfs_trans_get_buf               libxfs_trans_get_buf
 133 #define xfs_trans_log_buf               libxfs_trans_log_buf
 134 #define xfs_trans_read_buf              libxfs_trans_read_buf
 135 #define xfs_trans_log_inode             libxfs_trans_log_inode
 136 #define xfs_trans_inode_alloc_buf       libxfs_trans_inode_alloc_buf
 137 #define xfs_trans_brelse                libxfs_trans_brelse
 138 #define xfs_trans_binval                libxfs_trans_binval
 139
 140 #define xfs_da_shrink_inode             libxfs_da_shrink_inode
 141 #define xfs_da_grow_inode               libxfs_da_grow_inode
 142 #define xfs_da_brelse                   libxfs_da_brelse
 143 #define xfs_da_read_buf                 libxfs_da_read_buf
 144 #define xfs_da_get_buf                  libxfs_da_get_buf
 145 #define xfs_da_log_buf                  libxfs_da_log_buf
 146 #define xfs_da_do_buf                   libxfs_da_do_buf
 147 #define xfs_dir2_shrink_inode           libxfs_dir2_shrink_inode
 148 #define xfs_dir2_grow_inode             libxfs_dir2_grow_inode
 149 #define xfs_dir2_isleaf                 libxfs_dir2_isleaf
 150 #define xfs_dir2_isblock                libxfs_dir2_isblock
 151 #define xfs_dir2_data_use_free          libxfs_dir2_data_use_free
 152 #define xfs_dir2_data_make_free         libxfs_dir2_data_make_free
 153 #define xfs_dir2_data_log_entry         libxfs_dir2_data_log_entry
 154 #define xfs_dir2_data_log_header        libxfs_dir2_data_log_header
 155 #define xfs_dir2_data_freescan          libxfs_dir2_data_freescan
 156 #define xfs_dir2_free_log_bests         libxfs_dir2_free_log_bests
 157
 158 #define xfs_attr_leaf_newentsize        libxfs_attr_leaf_newentsize
 159 #define xfs_attr_set_int                libxfs_attr_set_int
 160 #define xfs_attr_remove_int             libxfs_attr_remove_int
 161
 162
 163 /*
 164  * Infrastructure to support building kernel XFS code in user space
 165  */
 166
 167 /* buffer management */
 168 #define XFS_BUF_LOCK                    0
 169 #define XFS_BUF_MAPPED                  0
 170 #define XFS_BUF_TRYLOCK                 0
 171 #define XFS_BUF_ISDONE(bp)              0
 172 #define XFS_BUF_GETERROR(bp)            0
 173 #define XFS_BUF_DONE(bp)                ((void) 0)
 174 #define XFS_BUF_STALE(bp)               ((void) 0)
 175 #define XFS_BUF_UNDELAYWRITE(bp)        ((void) 0)
 176 #define XFS_BUF_SET_REF(a,b)            ((void) 0)
 177 #define XFS_BUF_SET_VTYPE(a,b)          ((void) 0)
 178 #define XFS_BUF_SET_VTYPE_REF(a,b,c)    ((void) 0)
 179 #define XFS_BUF_SET_BDSTRAT_FUNC(a,b)   ((void) 0)
 180 #define xfs_incore(bt,blkno,len,lockit) 0
 181 #define xfs_baread(a,b,c)               ((void) 0)      /* no readahead */
 182 #define xfs_buftrace(x,y)               ((void) 0)      /* debug only */
 183 #define xfs_buf_item_log_debug(bip,a,b) ((void) 0)      /* debug only */
 184 #define xfs_validate_extents(e,n,d,f)   ((void) 0)      /* debug only */
 185 #define xfs_buf_relse(bp)               libxfs_putbuf(bp)
 186 #define xfs_read_buf(mp,devp,blkno,len,f,bpp)   \
 187         ( *(bpp) = libxfs_readbuf( *(dev_t*)devp, (blkno), (len), 1), 0 )
 188 #define xfs_buf_get_flags(devp,blkno,len,f)     \
 189         ( libxfs_getbuf( devp, (blkno), (len) ) )
 190 #define xfs_bwrite(mp,bp)               libxfs_writebuf((bp), 0)
 191
 192 #define XFS_B_READ                      LIBXFS_BREAD
 193 #define XFS_B_WRITE                     LIBXFS_BWRITE
 194 #define xfs_biomove(bp,off,len,data,f)  libxfs_iomove(bp,off,len,data,f)
 195 #define xfs_biozero(bp,off,len)         libxfs_iomove(bp,off,len,0,LIBXFS_BZERO)
 196
 197 /* transaction management */
 198 #define xfs_trans_set_sync(tp)                  ((void) 0)
 199 #define xfs_trans_agblocks_delta(tp, d)         ((void) 0)      /* debug only */
 200 #define xfs_trans_agflist_delta(tp, d)          ((void) 0)      /* debug only */
 201 #define xfs_trans_agbtree_delta(tp, d)          ((void) 0)      /* debug only */
 202 #define xfs_trans_mod_dquot_byino(tp,ip,f,d)    ((void) 0)
 203 #define xfs_trans_get_block_res(tp)             1
 204 #define xfs_trans_reserve_blkquota(tp,i,n)      0
 205 #define xfs_trans_unreserve_blkquota(tp,i,n)    ((void) 0)
 206 #define xfs_trans_unreserve_rtblkquota(tp,i,n)  ((void) 0)
 207
 208 /* memory management */
 209 #define KM_SLEEP        1
 210 #define KM_SLEEP_IO     2
 211 #define kmem_zone               xfs_zone
 212 #define kmem_zone_t             xfs_zone_t
 213 #define kmem_zone_init(a, b)    libxfs_zone_init(a, b)
 214 #define kmem_zone_alloc(z, f)   libxfs_zone_zalloc(z)
 215 #define kmem_zone_zalloc(z, f)  libxfs_zone_zalloc(z)
 216 #define kmem_zone_free(z, p)    libxfs_zone_free(z, p)
 217 #define kmem_realloc(p,sz,u,f)  libxfs_realloc(p,sz)
 218 #define kmem_zalloc(size, f)    libxfs_malloc(size)
 219 #define kmem_alloc(size, f)     libxfs_malloc(size)
 220 #define kmem_free(p, size)      libxfs_free(p)
 221
 222 /* directory management */
 223 #define xfs_dir2_trace_args(where, args)                ((void) 0)
 224 #define xfs_dir2_trace_args_b(where, args, bp)          ((void) 0)
 225 #define xfs_dir2_trace_args_bb(where, args, lbp, dbp)   ((void) 0)
 226 #define xfs_dir2_trace_args_bibii(where, args, bs, ss, bd, sd, c) ((void) 0)
 227 #define xfs_dir2_trace_args_db(where, args, db, bp)     ((void) 0)
 228 #define xfs_dir2_trace_args_i(where, args, i)           ((void) 0)
 229 #define xfs_dir2_trace_args_s(where, args, s)           ((void) 0)
 230 #define xfs_dir2_trace_args_sb(where, args, s, bp)      ((void) 0)
 231 #define xfs_dir_shortform_validate_ondisk(a,b)          ((void) 0)
 232
 233 /* block management */
 234 #define xfs_bmap_check_extents(ip,w)                    ((void) 0)
 235 #define xfs_bmap_trace_delete(f,d,ip,i,c,w)             ((void) 0)
 236 #define xfs_bmap_trace_exlist(f,ip,i,w)                 ((void) 0)
 237 #define xfs_bmap_trace_insert(f,d,ip,i,c,r1,r2,w)       ((void) 0)
 238 #define xfs_bmap_trace_post_update(f,d,ip,i,w)          ((void) 0)
 239 #define xfs_bmap_trace_pre_update(f,d,ip,i,w)           ((void) 0)
 240 #define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)    ((void) 0)
 241 #define xfs_bunmap_trace(ip, bno, len, flags, ra)       ((void) 0)
 242 #define XFS_BMBT_TRACE_ARGBI(c,b,i)                     ((void) 0)
 243 #define XFS_BMBT_TRACE_ARGBII(c,b,i,j)                  ((void) 0)
 244 #define XFS_BMBT_TRACE_ARGFFFI(c,o,b,i,j)               ((void) 0)
 245 #define XFS_BMBT_TRACE_ARGI(c,i)                        ((void) 0)
 246 #define XFS_BMBT_TRACE_ARGIFK(c,i,f,k)                  ((void) 0)
 247 #define XFS_BMBT_TRACE_ARGIFR(c,i,f,r)                  ((void) 0)
 248 #define XFS_BMBT_TRACE_ARGIK(c,i,k)                     ((void) 0)
 249 #define XFS_BMBT_TRACE_CURSOR(c,s)                      ((void) 0)
 250
 251 /* space allocation */
 252 #define xfs_alloc_search_busy(tp,ag,b,len)              ((void) 0)
 253 #define xfs_alloc_mark_busy(tp,ag,b,len)                ((void) 0)
 254 #define xfs_rotorstep                                   1
 255
 256 #define xfs_ilock(ip, mode)             ((void)0)
 257 #define xfs_iunlock(ip, mode)           ((void)0)
 258
 259 /* anything else */
 260 #if !defined(__sgi__)
 261 typedef __uint32_t uint_t;
 262 typedef __uint32_t inst_t;      /* an instruction */
 263 #endif
 264 typedef struct { dev_t dev; } xfs_buftarg_t;
 265 #undef MASK
 266 #define NBPP            getpagesize()
 267 #define STATIC
 268 #define VN_HOLD(vp)
 269 #define ATTR_ROOT       LIBXFS_ATTR_ROOT
 270 #define ATTR_SECURE     LIBXFS_ATTR_SECURE
 271 #define ATTR_CREATE     LIBXFS_ATTR_CREATE
 272 #define ATTR_REPLACE    LIBXFS_ATTR_REPLACE
 273 #define ATTR_KERNOTIME  0
 274 #define ktrace_t        void
 275 #define m_ddev_targp    m_dev
 276 #define unlikely(x)     (x)
 277 #define INIT_LIST_HEAD(x)
 278 #define KERN_WARNING
 279 #define XFS_ERROR(e)    (e)
 280 #define XFS_ERRLEVEL_LOW                1
 281 #define XFS_ERROR_REPORT(e,l,mp)        ((void) 0)
 282 #define XFS_CORRUPTION_ERROR(e,l,mp,m)  ((void) 0)
 283 #define XFS_TEST_ERROR(expr,a,b,c)      ( expr )
 284 #define TRACE_FREE(s,a,b,x,f)           ((void) 0)
 285 #define TRACE_ALLOC(s,a)                ((void) 0)
 286 #define TRACE_MODAGF(a,b,c)             ((void) 0)
 287 #define XFS_FORCED_SHUTDOWN(mp)         0
 288 #define XFS_STATS_INC(count)            do { } while (0)
 289 #define XFS_STATS_DEC(count, x)         do { } while (0)
 290 #define XFS_STATS_ADD(count, x)         do { } while (0)
 291 #define XFS_MOUNT_WSYNC                 0       /* ignored in userspace */
 292 #define XFS_MOUNT_NOALIGN               0       /* ignored in userspace */
 293 #define XFS_MOUNT_32BITINODES           0x1     /* enforce in userspace */
 294 #define XFS_MOUNT_32BITINOOPT           0x2     /* enforce in userspace */
 295 #define XFS_ILOCK_EXCL                  0
 296 #define down_read(a)                    ((void) 0)
 297 #define up_read(a)                      ((void) 0)
 298 #define mrlock(a,b,c)                   ((void) 0)
 299 #define mraccunlock(a)                  ((void) 0)
 300 #define mrunlock(a)                     ((void) 0)
 301 #define mraccess(a)                     ((void) 0)
 302 #define ismrlocked(a,b)                 1
 303 #define spinlock_init(a,b)              ((void) 0)
 304 #define spin_lock(a)                    ((void) 0)
 305 #define spin_unlock(a)                  ((void) 0)
 306 #define __return_address                __builtin_return_address(0)
 307 #define xfs_btree_reada_bufl(m,fsb,c)   ((void) 0)
 308 #define xfs_btree_reada_bufs(m,fsb,c,x) ((void) 0)
 309 #define XFS_SB_LOCK(mp)                 0
 310 #define XFS_SB_UNLOCK(mp,s)             ((void) 0)
 311 #undef  XFS_DIR_SHORTFORM_VALIDATE_ONDISK
 312 #define XFS_DIR_SHORTFORM_VALIDATE_ONDISK(mp,dip) 0
 313 #define XFS_QM_DQATTACH(mp,ip,flags)    0
 314 #define XFS_TRANS_MOD_DQUOT_BYINO(mp,tp,ip,field,delta) do { } while (0)
 315 #define XFS_TRANS_RESERVE_BLKQUOTA(mp,tp,ip,nblks)      0
 316 #define XFS_TRANS_UNRESERVE_BLKQUOTA(mp,tp,ip,nblks)    0
 317 #define XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl)  0
 318 #define XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl)        0
 319
 320 /* These are lifted from the kernel */
 321 #define get_unaligned(ptr) \
 322   ({ __typeof__(*(ptr)) __tmp; memmove(&__tmp, (ptr), sizeof(*(ptr))); __tmp; })
 323
 324 #define put_unaligned(val, ptr)                 \
 325   ({ __typeof__(*(ptr)) __tmp = (val);          \
 326      memmove((ptr), &__tmp, sizeof(*(ptr)));    \
 327      (void)0; })
 328
 329 #if (__GNUC__ < 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ <= 95))
 330 # define xfs_fs_cmn_err(a,b,msg,args...)( fprintf(stderr, msg, ## args) )
 331 # define cmn_err(a,msg,args...)         ( fprintf(stderr, msg, ## args) )
 332 # define printk(msg,args...)            ( fprintf(stderr, msg, ## args) )
 333 #else
 334 # define xfs_fs_cmn_err(a,b,...)        ( fprintf(stderr, __VA_ARGS__) )
 335 # define cmn_err(a,...)                 ( fprintf(stderr, __VA_ARGS__) )
 336 # define printk(...)                    ( fprintf(stderr, __VA_ARGS__) )
 337 #endif
 338
 339 #define do_mod(a, b)    ((a) % (b))
 340 #define do_div(n,base)  ({ \
 341         int __res; \
 342         __res = ((unsigned long) n) % (unsigned) base; \
 343         n = ((unsigned long) n) / (unsigned) base; \
 344         __res; })
 345
 346 static inline int atomicIncWithWrap(int *a, int b)
 347 {
 348         int r = *a;
 349         (*a)++;
 350         if (*a == b)
 351                 *a = 0;
 352         return r;
 353 }
 354
 355
 356 /*
 357  * Prototypes needed for a clean build
 358  */
 359
 360 /* xfs_alloc.c */
 361 int  xfs_alloc_get_freelist (xfs_trans_t *, xfs_buf_t *, xfs_agblock_t *, int);
 362 void xfs_alloc_log_agf (xfs_trans_t *, xfs_buf_t *, int);
 363 int  xfs_alloc_put_freelist (xfs_trans_t *, xfs_buf_t *, xfs_buf_t *,
 364                         xfs_agblock_t, int);
 365 int  xfs_alloc_read_agf (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 366                         int, xfs_buf_t **);
 367 int  xfs_alloc_vextent (xfs_alloc_arg_t *);
 368 int  xfs_alloc_pagf_init (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t, int);
 369 int  xfs_alloc_ag_vextent_size (xfs_alloc_arg_t *);
 370 int  xfs_alloc_ag_vextent_near (xfs_alloc_arg_t *);
 371 int  xfs_alloc_ag_vextent_exact (xfs_alloc_arg_t *);
 372 int  xfs_alloc_ag_vextent_small (xfs_alloc_arg_t *, xfs_btree_cur_t *,
 373                         xfs_agblock_t *, xfs_extlen_t *, int *);
 374
 375 /* xfs_ialloc.c */
 376 int  xfs_dialloc (xfs_trans_t *, xfs_ino_t, mode_t, int, xfs_buf_t **,
 377                         boolean_t *, xfs_ino_t *);
 378 void xfs_ialloc_log_agi (xfs_trans_t *, xfs_buf_t *, int);
 379 int  xfs_ialloc_read_agi (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 380                         xfs_buf_t **);
 381 int  xfs_dilocate (xfs_mount_t *, xfs_trans_t *, xfs_ino_t, xfs_fsblock_t *,
 382                         int *, int *, uint);
 383
 384 /* xfs_rtalloc.c */
 385 int  xfs_rtfree_extent (xfs_trans_t *, xfs_rtblock_t, xfs_extlen_t);
 386 int  xfs_rtmodify_range (xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
 387                         xfs_extlen_t, int);
 388 int  xfs_rtmodify_summary (xfs_mount_t *, xfs_trans_t *, int,
 389                         xfs_rtblock_t, int, xfs_buf_t **, xfs_fsblock_t *);
 390
 391 /* xfs_btree.c */
 392 extern xfs_zone_t *xfs_btree_cur_zone;
 393 void xfs_btree_check_key (xfs_btnum_t, void *, void *);
 394 void xfs_btree_check_rec (xfs_btnum_t, void *, void *);
 395 int  xfs_btree_check_lblock (xfs_btree_cur_t *, xfs_btree_lblock_t *,
 396                         int, xfs_buf_t *);
 397 int  xfs_btree_check_sblock (xfs_btree_cur_t *, xfs_btree_sblock_t *,
 398                         int, xfs_buf_t *);
 399 int  xfs_btree_check_sptr (xfs_btree_cur_t *, xfs_agblock_t, int);
 400 int  xfs_btree_check_lptr (xfs_btree_cur_t *, xfs_dfsbno_t, int);
 401 void xfs_btree_del_cursor (xfs_btree_cur_t *, int);
 402 int  xfs_btree_dup_cursor (xfs_btree_cur_t *, xfs_btree_cur_t **);
 403 int  xfs_btree_firstrec (xfs_btree_cur_t *, int);
 404 xfs_btree_block_t *xfs_btree_get_block (xfs_btree_cur_t *, int, xfs_buf_t **);
 405 xfs_buf_t *xfs_btree_get_bufs (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 406                         xfs_agblock_t, uint);
 407 xfs_buf_t *xfs_btree_get_bufl (xfs_mount_t *, xfs_trans_t *tp,
 408                         xfs_fsblock_t, uint);
 409 xfs_btree_cur_t *xfs_btree_init_cursor (xfs_mount_t *, xfs_trans_t *,
 410                         xfs_buf_t *, xfs_agnumber_t, xfs_btnum_t,
 411                         xfs_inode_t *, int);
 412 int  xfs_btree_islastblock (xfs_btree_cur_t *, int);
 413 int  xfs_btree_lastrec (xfs_btree_cur_t *, int);
 414 void xfs_btree_offsets (__int64_t, const short *, int, int *, int *);
 415 void xfs_btree_setbuf (xfs_btree_cur_t *, int, xfs_buf_t *);
 416 int  xfs_btree_read_bufs (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 417                         xfs_agblock_t, uint, xfs_buf_t **, int);
 418 int  xfs_btree_read_bufl (xfs_mount_t *, xfs_trans_t *, xfs_fsblock_t,
 419                         uint, xfs_buf_t **, int);
 420 int  xfs_btree_readahead_core (xfs_btree_cur_t *, int, int);
 421 static inline int xfs_btree_readahead (xfs_btree_cur_t *cur, int lev, int lr)
 422 {
 423         if ((cur->bc_ra[lev] | lr) == cur->bc_ra[lev])
 424                 return 0;
 425         return xfs_btree_readahead_core(cur, lev, lr);
 426 }
 427
 428
 429 /* xfs_inode.c */
 430 int  xfs_ialloc (xfs_trans_t *, xfs_inode_t *, mode_t, nlink_t, xfs_dev_t, cred_t *,
 431                 xfs_prid_t, int, xfs_buf_t **, boolean_t *, xfs_inode_t **);
 432 int  xfs_iread_extents (xfs_trans_t *, xfs_inode_t *, int);
 433 int  xfs_imap (xfs_mount_t *, xfs_trans_t *, xfs_ino_t, xfs_imap_t *, uint);
 434 int  xfs_iextents_copy (xfs_inode_t *, xfs_bmbt_rec_t *, int);
 435 int  xfs_iflush_int (xfs_inode_t *, xfs_buf_t *);
 436 int  xfs_iflush_fork (xfs_inode_t *, xfs_dinode_t *, xfs_inode_log_item_t *,
 437                 int, xfs_buf_t *);
 438 int  xfs_iformat_local (xfs_inode_t *, xfs_dinode_t *, int, int);
 439 int  xfs_iformat_extents (xfs_inode_t *, xfs_dinode_t *, int);
 440 int  xfs_iformat_btree (xfs_inode_t *, xfs_dinode_t *, int);
 441 void xfs_iroot_realloc (xfs_inode_t *, int, int);
 442 void xfs_idata_realloc (xfs_inode_t *, int, int);
 443 void xfs_iext_realloc (xfs_inode_t *, int, int);
 444 void xfs_idestroy_fork (xfs_inode_t *, int);
 445 uint xfs_iroundup (uint);
 446
 447 /* xfs_bmap.c */
 448 int  xfs_bmap_local_to_extents (xfs_trans_t *, xfs_inode_t *,
 449                         xfs_fsblock_t *, xfs_extlen_t, int *, int);
 450 xfs_bmbt_rec_t *xfs_bmap_search_extents (xfs_inode_t *,
 451                         xfs_fileoff_t, int, int *, xfs_extnum_t *,
 452                         xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
 453 int  xfs_bmap_read_extents (xfs_trans_t *, xfs_inode_t *, int);
 454 int  xfs_bmap_add_attrfork (xfs_inode_t *, int, int);
 455 void xfs_bmap_add_free (xfs_fsblock_t, xfs_filblks_t, xfs_bmap_free_t *,
 456                         xfs_mount_t *);
 457 int  xfs_bmap_first_unused (xfs_trans_t *, xfs_inode_t *, xfs_extlen_t,
 458                         xfs_fileoff_t *, int);
 459 int  xfs_bmap_last_offset (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t *, int);
 460 int  xfs_bmap_last_before (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t *, int);
 461 int  xfs_bmap_one_block (xfs_inode_t *, int);
 462 int  xfs_bmapi_single (xfs_trans_t *, xfs_inode_t *, int, xfs_fsblock_t *,
 463                         xfs_fileoff_t);
 464 int  xfs_bmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t,
 465                         xfs_filblks_t, int, xfs_fsblock_t *, xfs_extlen_t,
 466                         xfs_bmbt_irec_t *, int *, xfs_bmap_free_t *);
 467 int  xfs_bunmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t,
 468                         xfs_filblks_t, int, xfs_extnum_t, xfs_fsblock_t *,
 469                         xfs_bmap_free_t *, int *);
 470 int  xfs_bmap_add_extent_hole_delay (xfs_inode_t *ip, xfs_extnum_t,
 471                         xfs_btree_cur_t *, xfs_bmbt_irec_t *, int *, int);
 472 int  xfs_bmap_add_extent_hole_real (xfs_inode_t *, xfs_extnum_t,
 473                         xfs_btree_cur_t *, xfs_bmbt_irec_t *, int *, int);
 474 int  xfs_bmap_add_extent_unwritten_real (xfs_inode_t *, xfs_extnum_t,
 475                         xfs_btree_cur_t **, xfs_bmbt_irec_t *, int *);
 476 int  xfs_bmap_add_extent_delay_real (xfs_inode_t *, xfs_extnum_t,
 477                         xfs_btree_cur_t **, xfs_bmbt_irec_t *, xfs_filblks_t *,
 478                         xfs_fsblock_t *, xfs_bmap_free_t *, int *, int);
 479 int  xfs_bmap_extents_to_btree (xfs_trans_t *, xfs_inode_t *, xfs_fsblock_t *,
 480                         xfs_bmap_free_t *, xfs_btree_cur_t **, int, int *, int);
 481 void xfs_bmap_delete_exlist (xfs_inode_t *, xfs_extnum_t, xfs_extnum_t, int);
 482 xfs_filblks_t xfs_bmap_worst_indlen (xfs_inode_t *, xfs_filblks_t);
 483 void xfs_bmap_cancel (xfs_bmap_free_t *);
 484 int  xfs_bmap_isaeof (xfs_inode_t *, xfs_fileoff_t, int, char *);
 485 void xfs_bmap_insert_exlist (xfs_inode_t *, xfs_extnum_t, xfs_extnum_t,
 486                         xfs_bmbt_irec_t *, int);
 487
 488 /* xfs_bmap_btree.c */
 489 int  xfs_check_nostate_extents (xfs_bmbt_rec_t *, xfs_extnum_t);
 490 void xfs_bmbt_log_ptrs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 491 void xfs_bmbt_log_keys (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 492 int  xfs_bmbt_newroot (xfs_btree_cur_t *, int *, int *);
 493 int  xfs_bmbt_killroot (xfs_btree_cur_t *);
 494 int  xfs_bmbt_updkey (xfs_btree_cur_t *, xfs_bmbt_key_t *, int);
 495 int  xfs_bmbt_lshift (xfs_btree_cur_t *, int, int *);
 496 int  xfs_bmbt_rshift (xfs_btree_cur_t *, int, int *);
 497 int  xfs_bmbt_split (xfs_btree_cur_t *, int, xfs_fsblock_t *,
 498                         xfs_bmbt_key_t *, xfs_btree_cur_t **, int *);
 499 void xfs_bmbt_set_all (xfs_bmbt_rec_t *, xfs_bmbt_irec_t *);
 500 void xfs_bmbt_set_allf (xfs_bmbt_rec_t *, xfs_fileoff_t, xfs_fsblock_t,
 501                         xfs_filblks_t, xfs_exntst_t);
 502 void xfs_bmbt_set_blockcount (xfs_bmbt_rec_t *, xfs_filblks_t);
 503 void xfs_bmbt_set_startblock (xfs_bmbt_rec_t *, xfs_fsblock_t);
 504 void xfs_bmbt_set_startoff (xfs_bmbt_rec_t *, xfs_fileoff_t);
 505 void xfs_bmbt_set_state (xfs_bmbt_rec_t *, xfs_exntst_t);
 506 void xfs_bmbt_log_block (struct xfs_btree_cur *, struct xfs_buf *, int);
 507 void xfs_bmbt_log_recs (struct xfs_btree_cur *, struct xfs_buf *, int, int);
 508 int  xfs_bmbt_lookup_eq (struct xfs_btree_cur *, xfs_fileoff_t, xfs_fsblock_t,
 509                         xfs_filblks_t, int *);
 510 int  xfs_bmbt_lookup_ge (struct xfs_btree_cur *, xfs_fileoff_t, xfs_fsblock_t,
 511                         xfs_filblks_t, int *);
 512 xfs_fsblock_t xfs_bmbt_get_startblock (xfs_bmbt_rec_t *);
 513 xfs_filblks_t xfs_bmbt_get_blockcount (xfs_bmbt_rec_t *);
 514 xfs_fileoff_t xfs_bmbt_get_startoff (xfs_bmbt_rec_t *);
 515 xfs_exntst_t  xfs_bmbt_get_state (xfs_bmbt_rec_t *);
 516 xfs_bmbt_block_t * xfs_bmbt_get_block (xfs_btree_cur_t *, int,
 517                         struct xfs_buf **);
 518 int  xfs_bmbt_increment (struct xfs_btree_cur *, int, int *);
 519 int  xfs_bmbt_insert (struct xfs_btree_cur *, int *);
 520 int  xfs_bmbt_decrement (struct xfs_btree_cur *, int, int *);
 521 int  xfs_bmbt_delete (struct xfs_btree_cur *, int *);
 522 int  xfs_bmbt_update (struct xfs_btree_cur *, xfs_fileoff_t, xfs_fsblock_t,
 523                         xfs_filblks_t, xfs_exntst_t);
 524 void xfs_bmbt_to_bmdr (xfs_bmbt_block_t *, int, xfs_bmdr_block_t *, int);
 525 void xfs_bmdr_to_bmbt (xfs_bmdr_block_t *, int, xfs_bmbt_block_t *, int);
 526 #if __BYTE_ORDER != __BIG_ENDIAN
 527 xfs_fileoff_t xfs_bmbt_disk_get_startoff (xfs_bmbt_rec_t *);
 528 void xfs_bmbt_disk_set_all (xfs_bmbt_rec_t *, xfs_bmbt_irec_t *);
 529 void xfs_bmbt_disk_set_allf (xfs_bmbt_rec_t *, xfs_fileoff_t, xfs_fsblock_t,
 530                         xfs_filblks_t, xfs_exntst_t);
 531 #else
 532 #define xfs_bmbt_disk_get_startoff(r) xfs_bmbt_get_startoff(r)
 533 #define xfs_bmbt_disk_set_all(r, s) xfs_bmbt_set_all(r, s)
 534 #define xfs_bmbt_disk_set_allf(r, o, b, c, v) xfs_bmbt_set_allf(r, o, b, c, v)
 535 #endif
 536
 537 /* xfs_ialloc_btree.c */
 538 int  xfs_inobt_newroot (xfs_btree_cur_t *, int *);
 539 int  xfs_inobt_rshift (xfs_btree_cur_t *, int, int *);
 540 int  xfs_inobt_lshift (xfs_btree_cur_t *, int, int *);
 541 int  xfs_inobt_split (xfs_btree_cur_t *, int, xfs_agblock_t *,
 542                         xfs_inobt_key_t *, xfs_btree_cur_t **, int *);
 543 void xfs_inobt_log_keys (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 544 void xfs_inobt_log_ptrs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 545 void xfs_inobt_log_recs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 546 void xfs_inobt_log_block (xfs_trans_t *, xfs_buf_t *, int);
 547 int  xfs_inobt_updkey (xfs_btree_cur_t *, xfs_inobt_key_t *, int);
 548
 549 /* xfs_alloc_btree.c */
 550 void xfs_alloc_log_ptrs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 551 void xfs_alloc_log_keys (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 552 void xfs_alloc_log_recs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 553 void xfs_alloc_log_block (xfs_trans_t *, xfs_buf_t *, int);
 554 int  xfs_alloc_updkey (xfs_btree_cur_t *, xfs_alloc_key_t *, int);
 555 int  xfs_alloc_lshift (xfs_btree_cur_t *, int, int *);
 556 int  xfs_alloc_rshift (xfs_btree_cur_t *, int, int *);
 557 int  xfs_alloc_newroot (xfs_btree_cur_t *, int *);
 558 int  xfs_alloc_split (xfs_btree_cur_t *, int, xfs_agblock_t *,
 559                         xfs_alloc_key_t *, xfs_btree_cur_t **, int *);
 560
 561 /* xfs_da_btree.c */
 562 xfs_dabuf_t *xfs_da_buf_make (int, xfs_buf_t **, inst_t *);
 563 void xfs_da_binval (struct xfs_trans *, xfs_dabuf_t *);
 564 void xfs_da_buf_done (xfs_dabuf_t *);
 565 int  xfs_da_root_join (xfs_da_state_t *, xfs_da_state_blk_t *);
 566 int  xfs_da_root_split (xfs_da_state_t *, xfs_da_state_blk_t *,
 567                         xfs_da_state_blk_t *);
 568 void xfs_da_node_add (xfs_da_state_t *, xfs_da_state_blk_t *,
 569                         xfs_da_state_blk_t *);
 570 int  xfs_da_node_split (xfs_da_state_t *, xfs_da_state_blk_t *,
 571                         xfs_da_state_blk_t *, xfs_da_state_blk_t *, int, int *);
 572 void xfs_da_node_rebalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 573                         xfs_da_state_blk_t *);
 574 void xfs_da_node_remove (xfs_da_state_t *, xfs_da_state_blk_t *);
 575 void xfs_da_node_unbalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 576                         xfs_da_state_blk_t *);
 577 int  xfs_da_node_order (xfs_dabuf_t *, xfs_dabuf_t *);
 578 int  xfs_da_node_toosmall (xfs_da_state_t *, int *);
 579 uint xfs_da_node_lasthash (xfs_dabuf_t *, int *);
 580 int  xfs_da_do_buf (xfs_trans_t *, xfs_inode_t *, xfs_dablk_t, xfs_daddr_t *,
 581                         xfs_dabuf_t **, int, int, inst_t *);
 582 int  xfs_da_split (xfs_da_state_t *);
 583 int  xfs_da_node_create (xfs_da_args_t *, xfs_dablk_t, int,
 584                         xfs_dabuf_t **, int);
 585 int  xfs_da_join (xfs_da_state_t *);
 586 void xfs_da_fixhashpath (xfs_da_state_t *, xfs_da_state_path_t *);
 587 int  xfs_da_node_lookup_int (xfs_da_state_t *, int *);
 588 int  xfs_da_path_shift (xfs_da_state_t *, xfs_da_state_path_t *,
 589                         int, int, int *);
 590 int  xfs_da_blk_unlink (xfs_da_state_t *, xfs_da_state_blk_t *,
 591                         xfs_da_state_blk_t *);
 592 int  xfs_da_blk_link (xfs_da_state_t *, xfs_da_state_blk_t *,
 593                         xfs_da_state_blk_t *);
 594 xfs_da_state_t *xfs_da_state_alloc (void);
 595 void xfs_da_state_free (xfs_da_state_t *);
 596 void xfs_da_state_kill_altpath (xfs_da_state_t *);
 597 xfs_daddr_t xfs_da_blkno(xfs_dabuf_t *);
 598
 599 /* xfs_dir.c */
 600 int  xfs_dir_node_addname (xfs_da_args_t *);
 601 int  xfs_dir_leaf_lookup (xfs_da_args_t *);
 602 int  xfs_dir_node_lookup (xfs_da_args_t *);
 603 int  xfs_dir_leaf_replace (xfs_da_args_t *);
 604 int  xfs_dir_node_replace (xfs_da_args_t *);
 605 int  xfs_dir_node_removename (xfs_da_args_t *);
 606 int  xfs_dir_leaf_removename (xfs_da_args_t *, int *, int *);
 607
 608 /* xfs_dir_leaf.c */
 609 void xfs_dir_leaf_rebalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 610                         xfs_da_state_blk_t *);
 611 void xfs_dir_leaf_add_work (xfs_dabuf_t *, xfs_da_args_t *, int, int);
 612 int  xfs_dir_leaf_compact (xfs_trans_t *, xfs_dabuf_t *, int, int);
 613 int  xfs_dir_leaf_figure_balance (xfs_da_state_t *, xfs_da_state_blk_t *,
 614                         xfs_da_state_blk_t *, int *, int *);
 615 void xfs_dir_leaf_moveents (xfs_dir_leafblock_t *, int,
 616                         xfs_dir_leafblock_t *, int, int, xfs_mount_t *);
 617 int  xfs_dir_shortform_to_leaf (xfs_da_args_t *);
 618
 619 /* xfs_dir2_leaf.c */
 620 void xfs_dir2_leaf_check (xfs_inode_t *, xfs_dabuf_t *);
 621 int  xfs_dir2_leaf_lookup_int (xfs_da_args_t *, xfs_dabuf_t **,
 622                         int *, xfs_dabuf_t **);
 623
 624 /* xfs_dir2_block.c */
 625 void xfs_dir2_block_log_tail (xfs_trans_t *, xfs_dabuf_t *);
 626 void xfs_dir2_block_log_leaf (xfs_trans_t *, xfs_dabuf_t *, int, int);
 627 int  xfs_dir2_block_lookup_int (xfs_da_args_t *, xfs_dabuf_t **, int *);
 628
 629 /* xfs_dir2_node.c */
 630 void xfs_dir2_leafn_check (xfs_inode_t *, xfs_dabuf_t *);
 631 int  xfs_dir2_leafn_remove (xfs_da_args_t *, xfs_dabuf_t *, int,
 632                         xfs_da_state_blk_t *, int *);
 633 int  xfs_dir2_node_addname_int (xfs_da_args_t *, xfs_da_state_blk_t *);
 634 int  xfs_dir2_sf_to_block (xfs_da_args_t *);
 635
 636 /* xfs_dir2_sf.c */
 637 void xfs_dir2_sf_check (xfs_da_args_t *);
 638 int  xfs_dir2_sf_addname_pick (xfs_da_args_t *, int,
 639                         xfs_dir2_sf_entry_t **, xfs_dir2_data_aoff_t *);
 640 void xfs_dir2_sf_addname_easy (xfs_da_args_t *, xfs_dir2_sf_entry_t *,
 641                         xfs_dir2_data_aoff_t, int);
 642 void xfs_dir2_sf_addname_hard (xfs_da_args_t *, int, int);
 643 void xfs_dir2_sf_toino8 (xfs_da_args_t *);
 644 void xfs_dir2_sf_toino4 (xfs_da_args_t *);
 645
 646 /* xfs_attr_leaf.c */
 647 void xfs_attr_leaf_rebalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 648                         xfs_da_state_blk_t *);
 649 int  xfs_attr_leaf_add_work (xfs_dabuf_t *, xfs_da_args_t *, int);
 650 void xfs_attr_leaf_compact (xfs_trans_t *, xfs_dabuf_t *);
 651 void xfs_attr_leaf_moveents (xfs_attr_leafblock_t *, int,
 652                         xfs_attr_leafblock_t *, int, int, xfs_mount_t *);
 653 int  xfs_attr_leaf_figure_balance (xfs_da_state_t *, xfs_da_state_blk_t *,
 654                         xfs_da_state_blk_t *, int *, int *);
 655
 656 /* xfs_trans_item.c */
 657 xfs_log_item_desc_t *xfs_trans_add_item (xfs_trans_t *, xfs_log_item_t *);
 658 xfs_log_item_desc_t *xfs_trans_find_item (xfs_trans_t *, xfs_log_item_t *);
 659 void xfs_trans_free_item (xfs_trans_t *, xfs_log_item_desc_t *);
 660 void xfs_trans_free_items (xfs_trans_t *, int);
 661
 662 /* xfs_trans_buf.c */
 663 xfs_buf_t *xfs_trans_buf_item_match (xfs_trans_t *, xfs_buftarg_t *,
 664                         xfs_daddr_t, int);
 665 xfs_buf_t *xfs_trans_buf_item_match_all (xfs_trans_t *, xfs_buftarg_t *,
 666                         xfs_daddr_t, int);
 667
 668 /* xfs_inode_item.c */
 669 void xfs_inode_item_init (xfs_inode_t *, xfs_mount_t *);
 670
 671 /* xfs_buf_item.c */
 672 void xfs_buf_item_init (xfs_buf_t *, xfs_mount_t *);
 673 void xfs_buf_item_log (xfs_buf_log_item_t *, uint, uint);
 674
 675 /* local source files */
 676 int  xfs_mod_incore_sb (xfs_mount_t *, xfs_sb_field_t, int, int);
 677 void xfs_trans_mod_sb (xfs_trans_t *, uint, long);
 678 int  xfs_trans_unlock_chunk (xfs_log_item_chunk_t *, int, int, xfs_lsn_t);
 679
 680
 681 #ifndef DEBUG
 682 #define xfs_inobp_check(mp,bp)                          ((void) 0)
 683 #define xfs_btree_check_key(a,b,c)                      ((void) 0)
 684 #define xfs_btree_check_rec(a,b,c)                      ((void) 0)
 685 #define xfs_btree_check_block(a,b,c,d)                  ((void) 0)
 686 #define xfs_dir2_sf_check(args)                         ((void) 0)
 687 #define xfs_dir2_leaf_check(dp,bp)                      ((void) 0)
 688 #define xfs_dir2_leafn_check(dp,bp)                     ((void) 0)
 689 #undef xfs_dir2_data_check
 690 #define xfs_dir2_data_check(dp,bp)                      ((void) 0)
 691 #endif