libxfs/libxfs_priv.h

   1 /*
   2  * Copyright (c) 2000-2005 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18
  19 /*
  20  * This header is effectively a "namespace multiplexor" for the
  21  * user level XFS code.  It provides all of the necessary stuff
  22  * such that we can build some parts of the XFS kernel code in
  23  * user space in a controlled fashion, and translates the names
  24  * used in the kernel into the names which libxfs is going to
  25  * make available to user tools.
  26  *
  27  * It should only ever be #include'd by XFS "kernel" code being
  28  * compiled in user space.
  29  *
  30  * Our goals here are to...
  31  *      o  "share" large amounts of complex code between user and
  32  *         kernel space;
  33  *      o  shield the user tools from changes in the bleeding
  34  *         edge kernel code, merging source changes when
  35  *         convenient and not immediately (no symlinks);
  36  *      o  i.e. be able to merge changes to the kernel source back
  37  *         into the affected user tools in a controlled fashion;
  38  *      o  provide a _minimalist_ life-support system for kernel
  39  *         code in user land, not the "everything + the kitchen
  40  *         sink" model which libsim had mutated into;
  41  *      o  allow the kernel code to be completely free of code
  42  *         specifically there to support the user level build.
  43  */
  44
  45 /*
  46  * define a guard and something we can check to determine what include context
  47  * we are running from.
  48  */
  49 #ifndef __LIBXFS_INTERNAL_XFS_H__
  50 #define __LIBXFS_INTERNAL_XFS_H__
  51
  52 /*
  53  * repair doesn't have a inode when it calls libxfs_dir2_data_freescan,
  54  * so we map this internally for now.
  55  */
  56 #define xfs_dir2_data_freescan(ip, hdr, loghead) \
  57         __xfs_dir2_data_freescan((ip)->i_mount->m_dir_geo, \
  58                                  (ip)->d_ops, hdr, loghead)
  59
  60 /*
  61  * start by remapping all the symbols we expect external users to call
  62  * to the libxfs_ namespace. This ensures that all internal symbols are
  63  * remapped correctly throughout all the included header files
  64  * as well as in the C code.
  65  */
  66 #define xfs_alloc_fix_freelist          libxfs_alloc_fix_freelist
  67 #define xfs_attr_get                    libxfs_attr_get
  68 #define xfs_attr_set                    libxfs_attr_set
  69 #define xfs_attr_remove                 libxfs_attr_remove
  70 #define xfs_rtfree_extent               libxfs_rtfree_extent
  71
  72 #define xfs_fs_repair_cmn_err           libxfs_fs_repair_cmn_err
  73 #define xfs_fs_cmn_err                  libxfs_fs_cmn_err
  74
  75 #define xfs_bmap_finish                 libxfs_bmap_finish
  76 #define xfs_trans_ichgtime              libxfs_trans_ichgtime
  77
  78 #define xfs_trans_alloc                 libxfs_trans_alloc
  79 #define xfs_trans_add_item              libxfs_trans_add_item
  80 #define xfs_trans_bhold                 libxfs_trans_bhold
  81 #define xfs_trans_binval                libxfs_trans_binval
  82 #define xfs_trans_bjoin                 libxfs_trans_bjoin
  83 #define xfs_trans_brelse                libxfs_trans_brelse
  84 #define xfs_trans_commit                libxfs_trans_commit
  85 #define xfs_trans_cancel                libxfs_trans_cancel
  86 #define xfs_trans_del_item              libxfs_trans_del_item
  87 #define xfs_trans_dup                   libxfs_trans_dup
  88 #define xfs_trans_get_buf               libxfs_trans_get_buf
  89 #define xfs_trans_getsb                 libxfs_trans_getsb
  90 #define xfs_trans_iget                  libxfs_trans_iget
  91 #define xfs_trans_ijoin                 libxfs_trans_ijoin
  92 #define xfs_trans_ijoin_ref             libxfs_trans_ijoin_ref
  93 #define xfs_trans_init                  libxfs_trans_init
  94 #define xfs_trans_inode_alloc_buf       libxfs_trans_inode_alloc_buf
  95 #define xfs_trans_log_buf               libxfs_trans_log_buf
  96 #define xfs_trans_log_inode             libxfs_trans_log_inode
  97 #define xfs_trans_mod_sb                libxfs_trans_mod_sb
  98 #define xfs_trans_read_buf              libxfs_trans_read_buf
  99 #define xfs_trans_read_buf_map          libxfs_trans_read_buf_map
 100 #define xfs_trans_roll                  libxfs_trans_roll
 101 #define xfs_trans_get_buf_map           libxfs_trans_get_buf_map
 102 #define xfs_trans_reserve               libxfs_trans_reserve
 103
 104 /* xfs_attr_leaf.h */
 105 #define xfs_attr_leaf_newentsize        libxfs_attr_leaf_newentsize
 106
 107 /* xfs_bit.h */
 108 #define xfs_highbit32                   libxfs_highbit32
 109 #define xfs_highbit64                   libxfs_highbit64
 110
 111 /* xfs_bmap.h */
 112 #define xfs_bmap_cancel                 libxfs_bmap_cancel
 113 #define xfs_bmap_last_offset            libxfs_bmap_last_offset
 114 #define xfs_bmapi_write                 libxfs_bmapi_write
 115 #define xfs_bmapi_read                  libxfs_bmapi_read
 116 #define xfs_bunmapi                     libxfs_bunmapi
 117
 118 /* xfs_bmap_btree.h */
 119 #define xfs_bmbt_get_all                libxfs_bmbt_get_all
 120
 121 /* xfs_da_btree.h */
 122 #define xfs_da_brelse                   libxfs_da_brelse
 123 #define xfs_da_hashname                 libxfs_da_hashname
 124 #define xfs_da_shrink_inode             libxfs_da_shrink_inode
 125 #define xfs_da_read_buf                 libxfs_da_read_buf
 126
 127 /* xfs_dir2.h */
 128 #define xfs_dir_createname              libxfs_dir_createname
 129 #define xfs_dir_init                    libxfs_dir_init
 130 #define xfs_dir_lookup                  libxfs_dir_lookup
 131 #define xfs_dir_replace                 libxfs_dir_replace
 132 #define xfs_dir2_isblock                libxfs_dir2_isblock
 133 #define xfs_dir2_isleaf                 libxfs_dir2_isleaf
 134
 135 /* xfs_dir2_data.h */
 136 #define __xfs_dir2_data_freescan        libxfs_dir2_data_freescan
 137 #define xfs_dir2_data_log_entry         libxfs_dir2_data_log_entry
 138 #define xfs_dir2_data_log_header        libxfs_dir2_data_log_header
 139 #define xfs_dir2_data_make_free         libxfs_dir2_data_make_free
 140 #define xfs_dir2_data_use_free          libxfs_dir2_data_use_free
 141 #define xfs_dir2_shrink_inode           libxfs_dir2_shrink_inode
 142
 143 /* xfs_inode.h */
 144 #define xfs_dinode_from_disk            libxfs_dinode_from_disk
 145 #define xfs_dinode_to_disk              libxfs_dinode_to_disk
 146 #define xfs_dinode_calc_crc             libxfs_dinode_calc_crc
 147 #define xfs_idata_realloc               libxfs_idata_realloc
 148 #define xfs_idestroy_fork               libxfs_idestroy_fork
 149
 150 #define xfs_dinode_verify               libxfs_dinode_verify
 151
 152 /* xfs_sb.h */
 153 #define xfs_log_sb                      libxfs_log_sb
 154 #define xfs_sb_from_disk                libxfs_sb_from_disk
 155 #define xfs_sb_quota_from_disk          libxfs_sb_quota_from_disk
 156 #define xfs_sb_to_disk                  libxfs_sb_to_disk
 157
 158 /* xfs_symlink.h */
 159 #define xfs_symlink_blocks              libxfs_symlink_blocks
 160 #define xfs_symlink_hdr_ok              libxfs_symlink_hdr_ok
 161
 162 /* xfs_trans_resv.h */
 163 #define xfs_trans_resv_calc             libxfs_trans_resv_calc
 164
 165
 166 /*
 167  * Now we've renamed and mapped everything, include the rest of the external
 168  * libxfs headers.
 169  */
 170 #include <xfs/platform_defs.h>
 171
 172 #include <xfs/list.h>
 173 #include <xfs/hlist.h>
 174 #include <xfs/cache.h>
 175 #include <xfs/bitops.h>
 176 #include <xfs/kmem.h>
 177 #include <xfs/radix-tree.h>
 178 #include <xfs/swab.h>
 179 #include <xfs/atomic.h>
 180
 181 #include <xfs/xfs_types.h>
 182 #include <xfs/xfs_arch.h>
 183
 184 #include <xfs/xfs_fs.h>
 185
 186 /* CRC stuff, buffer API dependent on it */
 187 extern uint32_t crc32_le(uint32_t crc, unsigned char const *p, size_t len);
 188 extern uint32_t crc32c_le(uint32_t crc, unsigned char const *p, size_t len);
 189
 190 #define crc32(c,p,l)    crc32_le((c),(unsigned char const *)(p),(l))
 191 #define crc32c(c,p,l)   crc32c_le((c),(unsigned char const *)(p),(l))
 192
 193 #include <xfs/xfs_cksum.h>
 194
 195 /*
 196  * This mirrors the kernel include for xfs_buf.h - it's implicitly included in
 197  * every files via a similar include in the kernel xfs_linux.h.
 198  */
 199 #include <xfs/libxfs_io.h>
 200
 201 /* for all the support code that uses progname in error messages */
 202 extern char    *progname;
 203
 204 #undef ASSERT
 205 #define ASSERT(ex) assert(ex)
 206
 207 typedef __uint32_t              uint_t;
 208 typedef __uint32_t              inst_t;         /* an instruction */
 209
 210 #ifndef EWRONGFS
 211 #define EWRONGFS        EINVAL
 212 #endif
 213
 214 #define xfs_error_level                 0
 215
 216 #define STATIC                          static
 217
 218 /* XXX: need to push these out to make LIBXFS_ATTR defines */
 219 #define ATTR_ROOT                       0x0002
 220 #define ATTR_SECURE                     0x0008
 221 #define ATTR_CREATE                     0x0010
 222 #define ATTR_REPLACE                    0x0020
 223 #define ATTR_KERNOTIME                  0
 224 #define ATTR_KERNOVAL                   0
 225
 226 #define IHOLD(ip)                       ((void) 0)
 227
 228 #define XFS_IGET_CREATE                 0x1
 229 #define XFS_IGET_UNTRUSTED              0x2
 230
 231 extern void cmn_err(int, char *, ...);
 232 enum ce { CE_DEBUG, CE_CONT, CE_NOTE, CE_WARN, CE_ALERT, CE_PANIC };
 233
 234 #define xfs_notice(mp,fmt,args...)              cmn_err(CE_NOTE,fmt, ## args)
 235 #define xfs_warn(mp,fmt,args...)                cmn_err(CE_WARN,fmt, ## args)
 236 #define xfs_hex_dump(d,n)               ((void) 0)
 237
 238
 239 /* stop unused var warnings by assigning mp to itself */
 240 #define XFS_CORRUPTION_ERROR(e,l,mp,m)  do { \
 241         (mp) = (mp); \
 242         cmn_err(CE_ALERT, "%s: XFS_CORRUPTION_ERROR", (e));  \
 243 } while (0)
 244
 245 #define XFS_ERROR_REPORT(e,l,mp)        do { \
 246         (mp) = (mp); \
 247         cmn_err(CE_ALERT, "%s: XFS_ERROR_REPORT", (e));  \
 248 } while (0)
 249
 250 #define XFS_QM_DQATTACH(mp,ip,flags)    0
 251 #define XFS_ERRLEVEL_LOW                1
 252 #define XFS_FORCED_SHUTDOWN(mp)         0
 253 #define XFS_ILOCK_EXCL                  0
 254 #define XFS_STATS_INC(count)            do { } while (0)
 255 #define XFS_STATS_DEC(count, x)         do { } while (0)
 256 #define XFS_STATS_ADD(count, x)         do { } while (0)
 257 #define XFS_TRANS_MOD_DQUOT_BYINO(mp,tp,ip,field,delta) do { } while (0)
 258 #define XFS_TRANS_RESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl)  0
 259 #define XFS_TRANS_UNRESERVE_QUOTA_NBLKS(mp,tp,ip,nblks,ninos,fl)        0
 260 #define XFS_TEST_ERROR(expr,a,b,c)      ( expr )
 261 #define XFS_WANT_CORRUPTED_GOTO(mp, expr, l)    \
 262                 { if (!(expr)) { error = EFSCORRUPTED; goto l; } }
 263 #define XFS_WANT_CORRUPTED_RETURN(mp, expr)     \
 264                 { if (!(expr)) { return EFSCORRUPTED; } }
 265
 266 #ifdef __GNUC__
 267 #define __return_address        __builtin_return_address(0)
 268 #endif
 269
 270 #define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
 271
 272 /* miscellaneous kernel routines not in user space */
 273 #define down_read(a)            ((void) 0)
 274 #define up_read(a)              ((void) 0)
 275 #define spin_lock_init(a)       ((void) 0)
 276 #define spin_lock(a)            ((void) 0)
 277 #define spin_unlock(a)          ((void) 0)
 278 #define likely(x)               (x)
 279 #define unlikely(x)             (x)
 280 #define rcu_read_lock()         ((void) 0)
 281 #define rcu_read_unlock()       ((void) 0)
 282 #define WARN_ON_ONCE(expr)      ((void) 0)
 283
 284 #define percpu_counter_read(x)  (*x)
 285 #define percpu_counter_sum(x)   (*x)
 286
 287 /*
 288  * prandom_u32 is used for di_gen inode allocation, it must be zero for libxfs
 289  * or all sorts of badness can occur!
 290  */
 291 #define prandom_u32()           0
 292
 293 #define PAGE_CACHE_SIZE         getpagesize()
 294
 295 static inline int __do_div(unsigned long long *n, unsigned base)
 296 {
 297         int __res;
 298         __res = (int)(((unsigned long) *n) % (unsigned) base);
 299         *n = ((unsigned long) *n) / (unsigned) base;
 300         return __res;
 301 }
 302
 303 #define do_div(n,base)  (__do_div((unsigned long long *)&(n), (base)))
 304 #define do_mod(a, b)            ((a) % (b))
 305 #define rol32(x,y)              (((x) << (y)) | ((x) >> (32 - (y))))
 306
 307 #define min_t(type,x,y) \
 308         ({ type __x = (x); type __y = (y); __x < __y ? __x: __y; })
 309 #define max_t(type,x,y) \
 310         ({ type __x = (x); type __y = (y); __x > __y ? __x: __y; })
 311
 312
 313
 314 static inline __attribute__((const))
 315 int is_power_of_2(unsigned long n)
 316 {
 317         return (n != 0 && ((n & (n - 1)) == 0));
 318 }
 319
 320 /*
 321  * xfs_iroundup: round up argument to next power of two
 322  */
 323 static inline uint
 324 roundup_pow_of_two(uint v)
 325 {
 326         int     i;
 327         uint    m;
 328
 329         if ((v & (v - 1)) == 0)
 330                 return v;
 331         ASSERT((v & 0x80000000) == 0);
 332         if ((v & (v + 1)) == 0)
 333                 return v + 1;
 334         for (i = 0, m = 1; i < 31; i++, m <<= 1) {
 335                 if (v & m)
 336                         continue;
 337                 v |= m;
 338                 if ((v & (v + 1)) == 0)
 339                         return v + 1;
 340         }
 341         ASSERT(0);
 342         return 0;
 343 }
 344
 345 static inline __uint64_t
 346 roundup_64(__uint64_t x, __uint32_t y)
 347 {
 348         x += y - 1;
 349         do_div(x, y);
 350         return x * y;
 351 }
 352
 353 #define __round_mask(x, y) ((__typeof__(x))((y)-1))
 354 #define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
 355 #define round_down(x, y) ((x) & ~__round_mask(x, y))
 356
 357 /* buffer management */
 358 #define XFS_BUF_LOCK                    0
 359 #define XFS_BUF_TRYLOCK                 0
 360 #define XBF_LOCK                        XFS_BUF_LOCK
 361 #define XBF_TRYLOCK                     XFS_BUF_TRYLOCK
 362 #define XBF_DONT_BLOCK                  0
 363 #define XBF_UNMAPPED                    0
 364 #define XBF_DONE                        0
 365 #define XFS_BUF_GETERROR(bp)            0
 366 #define XFS_BUF_DONE(bp)                ((bp)->b_flags |= LIBXFS_B_UPTODATE)
 367 #define XFS_BUF_ISDONE(bp)              ((bp)->b_flags & LIBXFS_B_UPTODATE)
 368 #define xfs_buf_stale(bp)               ((bp)->b_flags |= LIBXFS_B_STALE)
 369 #define XFS_BUF_UNDELAYWRITE(bp)        ((bp)->b_flags &= ~LIBXFS_B_DIRTY)
 370 #define XFS_BUF_SET_VTYPE(a,b)          ((void) 0)
 371 #define XFS_BUF_SET_VTYPE_REF(a,b,c)    ((void) 0)
 372 #define XFS_BUF_SET_BDSTRAT_FUNC(a,b)   ((void) 0)
 373
 374 /* avoid gcc warning */
 375 #define xfs_incore(bt,blkno,len,lockit) ({              \
 376         typeof(blkno) __foo = (blkno);                  \
 377         typeof(len) __bar = (len);                      \
 378         (blkno) = __foo;                                \
 379         (len) = __bar; /* no set-but-unused warning */  \
 380         NULL;                                           \
 381 })
 382 #define xfs_buf_relse(bp)               libxfs_putbuf(bp)
 383 #define xfs_buf_get(devp,blkno,len,f)   (libxfs_getbuf((devp), (blkno), (len)))
 384 #define xfs_bwrite(bp)                  libxfs_writebuf((bp), 0)
 385 #define xfs_buf_delwri_queue(bp, bl)    libxfs_writebuf((bp), 0)
 386
 387 #define XBRW_READ                       LIBXFS_BREAD
 388 #define XBRW_WRITE                      LIBXFS_BWRITE
 389 #define xfs_buf_iomove(bp,off,len,data,f)       libxfs_iomove(bp,off,len,data,f)
 390 #define xfs_buf_zero(bp,off,len)        libxfs_iomove(bp,off,len,0,LIBXFS_BZERO)
 391
 392 /* mount stuff */
 393 #define XFS_MOUNT_32BITINODES           LIBXFS_MOUNT_32BITINODES
 394 #define XFS_MOUNT_ATTR2                 LIBXFS_MOUNT_ATTR2
 395 #define XFS_MOUNT_SMALL_INUMS           0       /* ignored in userspace */
 396 #define XFS_MOUNT_WSYNC                 0       /* ignored in userspace */
 397 #define XFS_MOUNT_NOALIGN               0       /* ignored in userspace */
 398 #define XFS_MOUNT_IKEEP                 0       /* ignored in userspace */
 399 #define XFS_MOUNT_SWALLOC               0       /* ignored in userspace */
 400 #define XFS_MOUNT_RDONLY                0       /* ignored in userspace */
 401
 402
 403 #define _xfs_trans_alloc(mp, type, f)   libxfs_trans_alloc(mp, type)
 404 #define xfs_trans_get_block_res(tp)     1
 405 #define xfs_trans_set_sync(tp)          ((void) 0)
 406 #define xfs_trans_ordered_buf(tp, bp)   ((void) 0)
 407 #define xfs_trans_agblocks_delta(tp, d)
 408 #define xfs_trans_agflist_delta(tp, d)
 409 #define xfs_trans_agbtree_delta(tp, d)
 410 #define xfs_trans_buf_set_type(tp, bp, t)       ({      \
 411         int __t = (t);                                  \
 412         __t = __t; /* no set-but-unused warning */      \
 413 })
 414
 415 #define xfs_trans_buf_copy_type(dbp, sbp)
 416
 417 /* no readahead, need to avoid set-but-unused var warnings. */
 418 #define xfs_buf_readahead(a,d,c,ops)            ({      \
 419         xfs_daddr_t __d = d;                            \
 420         __d = __d; /* no set-but-unused warning */      \
 421 })
 422 #define xfs_buf_readahead_map(a,b,c,ops)        ((void) 0)      /* no readahead */
 423 #define xfs_buftrace(x,y)                       ((void) 0)      /* debug only */
 424
 425 #define xfs_cmn_err(tag,level,mp,fmt,args...)   cmn_err(level,fmt, ## args)
 426 #define xfs_warn(mp,fmt,args...)                cmn_err(CE_WARN,fmt, ## args)
 427 #define xfs_alert(mp,fmt,args...)               cmn_err(CE_ALERT,fmt, ## args)
 428 #define xfs_alert_tag(mp,tag,fmt,args...)       cmn_err(CE_ALERT,fmt, ## args)
 429
 430 #define xfs_dir2_trace_args(where, args)                ((void) 0)
 431 #define xfs_dir2_trace_args_b(where, args, bp)          ((void) 0)
 432 #define xfs_dir2_trace_args_bb(where, args, lbp, dbp)   ((void) 0)
 433 #define xfs_dir2_trace_args_bibii(where, args, bs, ss, bd, sd, c) ((void) 0)
 434 #define xfs_dir2_trace_args_db(where, args, db, bp)     ((void) 0)
 435 #define xfs_dir2_trace_args_i(where, args, i)           ((void) 0)
 436 #define xfs_dir2_trace_args_s(where, args, s)           ((void) 0)
 437 #define xfs_dir2_trace_args_sb(where, args, s, bp)      ((void) 0)
 438 #define xfs_sort                                        qsort
 439
 440 #define xfs_icsb_reinit_counters(mp)                    do { } while (0)
 441 #define xfs_initialize_perag_icache(pag)                ((void) 0)
 442
 443 #define xfs_ilock(ip,mode)                              ((void) 0)
 444 #define xfs_ilock_nowait(ip,mode)                       ((void) 0)
 445 #define xfs_ilock_demote(ip,mode)                       ((void) 0)
 446 #define xfs_ilock_data_map_shared(ip)                   (0)
 447 #define xfs_ilock_attr_map_shared(ip)                   (0)
 448 #define xfs_iunlock(ip,mode)                            ({      \
 449         typeof(mode) __mode = mode;                             \
 450         __mode = __mode; /* no set-but-unused warning */        \
 451 })
 452 #define __xfs_flock(ip)                                 ((void) 0)
 453
 454 /* space allocation */
 455 #define xfs_extent_busy_reuse(mp,ag,bno,len,user)       ((void) 0)
 456 #define xfs_extent_busy_insert(tp,ag,bno,len,flags)     ((void) 0)
 457 #define xfs_extent_busy_trim(args,fbno,flen,bno,len) \
 458 do { \
 459         *(bno) = (fbno); \
 460         *(len) = (flen); \
 461 } while (0)
 462
 463 /* avoid unused variable warning */
 464 #define xfs_alloc_busy_insert(tp,ag,b,len)      ({      \
 465         xfs_agnumber_t __foo = ag;                      \
 466         __foo = 0;                                      \
 467 })
 468
 469 #define xfs_rotorstep                           1
 470 #define xfs_bmap_rtalloc(a)                     (ENOSYS)
 471 #define xfs_rtpick_extent(mp,tp,len,p)          (ENOSYS)
 472 #define xfs_get_extsz_hint(ip)                  (0)
 473 #define xfs_inode_is_filestream(ip)             (0)
 474 #define xfs_filestream_lookup_ag(ip)            (0)
 475 #define xfs_filestream_new_ag(ip,ag)            (0)
 476
 477 #define xfs_log_force(mp,flags)                 ((void) 0)
 478 #define XFS_LOG_SYNC                            1
 479
 480 /* quota bits */
 481 #define xfs_trans_mod_dquot_byino(t,i,f,d)              ((void) 0)
 482 #define xfs_trans_reserve_quota_nblks(t,i,b,n,f)        (0)
 483 #define xfs_trans_unreserve_quota_nblks(t,i,b,n,f)      ((void) 0)
 484 #define xfs_qm_dqattach(i,f)                            (0)
 485
 486 #define uuid_copy(s,d)          platform_uuid_copy((s),(d))
 487 #define uuid_equal(s,d)         (platform_uuid_compare((s),(d)) == 0)
 488
 489 #define xfs_icreate_log(tp, agno, agbno, cnt, isize, len, gen) ((void) 0)
 490 #define xfs_sb_validate_fsb_count(sbp, nblks)           (0)
 491
 492 /*
 493  * Prototypes for kernel static functions that are aren't in their
 494  * associated header files.
 495  */
 496 struct xfs_da_args;
 497 struct xfs_bmap_free;
 498 struct xfs_bmap_free_item;
 499 struct xfs_mount;
 500 struct xfs_sb;
 501 struct xfs_trans;
 502 struct xfs_inode;
 503 struct xfs_log_item;
 504 struct xfs_buf;
 505 struct xfs_buf_map;
 506 struct xfs_buf_log_item;
 507 struct xfs_buftarg;
 508
 509 /* xfs_attr.c */
 510 int xfs_attr_rmtval_get(struct xfs_da_args *);
 511
 512 /* xfs_bmap.c */
 513 void xfs_bmap_del_free(struct xfs_bmap_free *, struct xfs_bmap_free_item *,
 514                         struct xfs_bmap_free_item *);
 515
 516 /* xfs_mount.c */
 517 int xfs_initialize_perag_data(struct xfs_mount *, xfs_agnumber_t);
 518 void xfs_mount_common(struct xfs_mount *, struct xfs_sb *);
 519
 520 /*
 521  * logitem.c and trans.c prototypes
 522  */
 523 void xfs_trans_init(struct xfs_mount *);
 524 int xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
 525
 526 /* xfs_trans_item.c */
 527 void xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *);
 528 void xfs_trans_del_item(struct xfs_log_item *);
 529 void xfs_trans_free_items(struct xfs_trans *, int);
 530
 531 /* xfs_inode_item.c */
 532 void xfs_inode_item_init(struct xfs_inode *, struct xfs_mount *);
 533
 534 /* xfs_buf_item.c */
 535 void xfs_buf_item_init(struct xfs_buf *, struct xfs_mount *);
 536 void xfs_buf_item_log(struct xfs_buf_log_item *, uint, uint);
 537
 538 /* xfs_trans_buf.c */
 539 struct xfs_buf *xfs_trans_buf_item_match(struct xfs_trans *,
 540                         struct xfs_buftarg *, struct xfs_buf_map *, int);
 541
 542 /* local source files */
 543 #define xfs_mod_fdblocks(mp, delta, rsvd) \
 544         libxfs_mod_incore_sb(mp, XFS_TRANS_SB_FDBLOCKS, delta, rsvd)
 545 #define xfs_mod_frextents(mp, delta) \
 546         libxfs_mod_incore_sb(mp, XFS_TRANS_SB_FREXTENTS, delta, 0)
 547 int  libxfs_mod_incore_sb(struct xfs_mount *, int, int64_t, int);
 548 void xfs_reinit_percpu_counters(struct xfs_mount *mp);
 549
 550 void xfs_trans_mod_sb(struct xfs_trans *, uint, long);
 551 void xfs_trans_init(struct xfs_mount *);
 552 int  xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
 553 void xfs_verifier_error(struct xfs_buf *bp);
 554
 555 /* XXX: this is clearly a bug - a shared header needs to export this */
 556 /* xfs_rtalloc.c */
 557 int libxfs_rtfree_extent(struct xfs_trans *, xfs_rtblock_t, xfs_extlen_t);
 558
 559 #endif  /* __LIBXFS_INTERNAL_XFS_H__ */