libxfs/xfs.h

   1 /*
   2  * Copyright (c) 2000 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 <libxfs.h>
  60 #include <string.h>
  61 #include <errno.h>
  62 #include <sys/stat.h>
  63
  64 /*
  65  * Map XFS kernel routine names to libxfs.h names
  66  */
  67
  68 #define xfs_xlatesb                     libxfs_xlate_sb
  69 #define xfs_xlate_dinode_core           libxfs_xlate_dinode_core
  70 #define xfs_bmbt_get_all                libxfs_bmbt_get_all
  71 #define xfs_bmbt_get_blockcount         libxfs_bmbt_get_blockcount
  72 #define xfs_bmbt_get_startoff           libxfs_bmbt_get_startoff
  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_attr_leaf_newentsize        libxfs_attr_leaf_newentsize
  78 #define xfs_alloc_compute_maxlevels     libxfs_alloc_compute_maxlevels
  79 #define xfs_bmap_compute_maxlevels      libxfs_bmap_compute_maxlevels
  80 #define xfs_ialloc_compute_maxlevels    libxfs_ialloc_compute_maxlevels
  81
  82 #define xfs_dir_init                    libxfs_dir_init
  83 #define xfs_dir2_init                   libxfs_dir2_init
  84 #define xfs_dir_mount                   libxfs_dir_mount
  85 #define xfs_dir2_mount                  libxfs_dir2_mount
  86 #define xfs_dir_createname              libxfs_dir_createname
  87 #define xfs_dir2_createname             libxfs_dir2_createname
  88 #define xfs_dir_lookup                  libxfs_dir_lookup
  89 #define xfs_dir2_lookup                 libxfs_dir2_lookup
  90 #define xfs_dir_replace                 libxfs_dir_replace
  91 #define xfs_dir2_replace                libxfs_dir2_replace
  92 #define xfs_dir_removename              libxfs_dir_removename
  93 #define xfs_dir2_removename             libxfs_dir2_removename
  94 #define xfs_dir_bogus_removename        libxfs_dir_bogus_removename
  95 #define xfs_dir2_bogus_removename       libxfs_dir2_bogus_removename
  96
  97 #define xfs_mount_common                libxfs_mount_common
  98 #define xfs_initialize_perag            libxfs_initialize_perag
  99 #define xfs_rtmount_init                libxfs_rtmount_init
 100 #define xfs_alloc_fix_freelist          libxfs_alloc_fix_freelist
 101 #define xfs_iread                       libxfs_iread
 102 #define xfs_ialloc                      libxfs_ialloc
 103 #define xfs_idata_realloc               libxfs_idata_realloc
 104 #define xfs_itobp                       libxfs_itobp
 105 #define xfs_ichgtime                    libxfs_ichgtime
 106 #define xfs_bmapi                       libxfs_bmapi
 107 #define xfs_bmap_finish                 libxfs_bmap_finish
 108 #define xfs_bmap_del_free               libxfs_bmap_del_free
 109 #define xfs_bunmapi                     libxfs_bunmapi
 110 #define xfs_free_extent                 libxfs_free_extent
 111 #define xfs_rtfree_extent               libxfs_rtfree_extent
 112 #define xfs_mod_sb                      libxfs_mod_sb
 113 #define xfs_mod_incore_sb               libxfs_mod_incore_sb
 114
 115 #define xfs_trans_init                  libxfs_trans_init
 116 #define xfs_trans_dup                   libxfs_trans_dup
 117 #define xfs_trans_iget                  libxfs_trans_iget
 118 #define xfs_trans_ijoin                 libxfs_trans_ijoin
 119 #define xfs_trans_ihold                 libxfs_trans_ihold
 120 #define xfs_trans_bjoin                 libxfs_trans_bjoin
 121 #define xfs_trans_bhold                 libxfs_trans_bhold
 122 #define xfs_trans_alloc                 libxfs_trans_alloc
 123 #define xfs_trans_commit                libxfs_trans_commit
 124 #define xfs_trans_mod_sb                libxfs_trans_mod_sb
 125 #define xfs_trans_reserve               libxfs_trans_reserve
 126 #define xfs_trans_get_buf               libxfs_trans_get_buf
 127 #define xfs_trans_log_buf               libxfs_trans_log_buf
 128 #define xfs_trans_read_buf              libxfs_trans_read_buf
 129 #define xfs_trans_log_inode             libxfs_trans_log_inode
 130 #define xfs_trans_inode_alloc_buf       libxfs_trans_inode_alloc_buf
 131 #define xfs_trans_brelse                libxfs_trans_brelse
 132 #define xfs_trans_binval                libxfs_trans_binval
 133
 134 #define xfs_da_shrink_inode             libxfs_da_shrink_inode
 135 #define xfs_da_grow_inode               libxfs_da_grow_inode
 136 #define xfs_da_brelse                   libxfs_da_brelse
 137 #define xfs_da_read_buf                 libxfs_da_read_buf
 138 #define xfs_da_get_buf                  libxfs_da_get_buf
 139 #define xfs_da_log_buf                  libxfs_da_log_buf
 140 #define xfs_da_do_buf                   libxfs_da_do_buf
 141 #define xfs_dir2_shrink_inode           libxfs_dir2_shrink_inode
 142 #define xfs_dir2_grow_inode             libxfs_dir2_grow_inode
 143 #define xfs_dir2_isleaf                 libxfs_dir2_isleaf
 144 #define xfs_dir2_isblock                libxfs_dir2_isblock
 145 #define xfs_dir2_data_use_free          libxfs_dir2_data_use_free
 146 #define xfs_dir2_data_make_free         libxfs_dir2_data_make_free
 147 #define xfs_dir2_data_log_entry         libxfs_dir2_data_log_entry
 148 #define xfs_dir2_data_log_header        libxfs_dir2_data_log_header
 149 #define xfs_dir2_data_freescan          libxfs_dir2_data_freescan
 150 #define xfs_dir2_free_log_bests         libxfs_dir2_free_log_bests
 151
 152
 153 /*
 154  * Infrastructure to support building kernel XFS code in user space
 155  */
 156
 157 /* buffer management */
 158 #define XFS_BUF_LOCK                    0
 159 #define XFS_BUF_MAPPED                  0
 160 #define XFS_BUF_TRYLOCK                 0
 161 #define XFS_BUF_ISDONE(bp)              0
 162 #define XFS_BUF_GETERROR(bp)            0
 163 #define XFS_BUF_DONE(bp)                ((void) 0)
 164 #define XFS_BUF_SET_REF(a,b)            ((void) 0)
 165 #define XFS_BUF_SET_VTYPE(a,b)          ((void) 0)
 166 #define XFS_BUF_SET_VTYPE_REF(a,b,c)    ((void) 0)
 167 #define XFS_BUF_SET_BDSTRAT_FUNC(a,b)   ((void) 0)
 168 #define xfs_baread(a,b,c)               ((void) 0)      /* no readahead */
 169 #define xfs_buftrace(x,y)               ((void) 0)      /* debug only */
 170 #define xfs_buf_item_log_debug(bip,a,b) ((void) 0)      /* debug only */
 171 #define xfs_validate_extents(e,n,f)     ((void) 0)      /* debug only */
 172 #define xfs_buf_relse(bp)               libxfs_putbuf(bp)
 173 #define xfs_read_buf(mp,devp,blkno,len,f,bpp)   \
 174         ( *(bpp) = libxfs_readbuf( *(dev_t*)devp, (blkno), (len), 1), 0 )
 175
 176 /* transaction management */
 177 #define xfs_trans_set_sync(tp)                  ((void) 0)
 178 #define xfs_trans_agblocks_delta(tp, d)         ((void) 0)      /* debug only */
 179 #define xfs_trans_agflist_delta(tp, d)          ((void) 0)      /* debug only */
 180 #define xfs_trans_agbtree_delta(tp, d)          ((void) 0)      /* debug only */
 181 #define xfs_trans_mod_dquot_byino(tp,ip,f,d)    ((void) 0)
 182 #define xfs_trans_get_block_res(tp)             1
 183 #define xfs_trans_reserve_blkquota(tp,i,n)      0
 184 #define xfs_trans_unreserve_blkquota(tp,i,n)    ((void) 0)
 185 #define xfs_trans_unreserve_rtblkquota(tp,i,n)  ((void) 0)
 186
 187 /* memory management */
 188 #define KM_SLEEP        1
 189 #define KM_SLEEP_IO     2
 190 #define kmem_zone_init(a, b)    libxfs_zone_init(a, b)
 191 #define kmem_zone_alloc(z, f)   libxfs_zone_zalloc(z)
 192 #define kmem_zone_zalloc(z, f)  libxfs_zone_zalloc(z)
 193 #define kmem_zone_free(z, p)    libxfs_zone_free(z, p)
 194 #define kmem_realloc(p,sz,u,f)  libxfs_realloc(p,sz)
 195 #define kmem_zalloc(size, f)    libxfs_malloc(size)
 196 #define kmem_alloc(size, f)     libxfs_malloc(size)
 197 #define kmem_free(p, size)      libxfs_free(p)
 198
 199 /* directory management */
 200 #define xfs_dir2_trace_args(where, args)                ((void) 0)
 201 #define xfs_dir2_trace_args_b(where, args, bp)          ((void) 0)
 202 #define xfs_dir2_trace_args_bb(where, args, lbp, dbp)   ((void) 0)
 203 #define xfs_dir2_trace_args_bibii(where, args, bs, ss, bd, sd, c) ((void) 0)
 204 #define xfs_dir2_trace_args_db(where, args, db, bp)     ((void) 0)
 205 #define xfs_dir2_trace_args_i(where, args, i)           ((void) 0)
 206 #define xfs_dir2_trace_args_s(where, args, s)           ((void) 0)
 207 #define xfs_dir2_trace_args_sb(where, args, s, bp)      ((void) 0)
 208 #define xfs_dir_shortform_validate_ondisk(a,b)          ((void) 0)
 209
 210 /* block management */
 211 #define xfs_bmap_check_extents(ip,w)                    ((void) 0)
 212 #define xfs_bmap_trace_delete(f,d,ip,i,c,w)             ((void) 0)
 213 #define xfs_bmap_trace_exlist(f,ip,i,w)                 ((void) 0)
 214 #define xfs_bmap_trace_insert(f,d,ip,i,c,r1,r2,w)       ((void) 0)
 215 #define xfs_bmap_trace_post_update(f,d,ip,i,w)          ((void) 0)
 216 #define xfs_bmap_trace_pre_update(f,d,ip,i,w)           ((void) 0)
 217 #define xfs_bmap_validate_ret(bno,len,flags,mval,onmap,nmap)    ((void) 0)
 218 #define xfs_bunmap_trace(ip, bno, len, flags, ra)       ((void) 0)
 219 #define XFS_BMBT_TRACE_ARGBI(c,b,i)                     ((void) 0)
 220 #define XFS_BMBT_TRACE_ARGBII(c,b,i,j)                  ((void) 0)
 221 #define XFS_BMBT_TRACE_ARGFFFI(c,o,b,i,j)               ((void) 0)
 222 #define XFS_BMBT_TRACE_ARGI(c,i)                        ((void) 0)
 223 #define XFS_BMBT_TRACE_ARGIFK(c,i,f,k)                  ((void) 0)
 224 #define XFS_BMBT_TRACE_ARGIFR(c,i,f,r)                  ((void) 0)
 225 #define XFS_BMBT_TRACE_ARGIK(c,i,k)                     ((void) 0)
 226 #define XFS_BMBT_TRACE_CURSOR(c,s)                      ((void) 0)
 227
 228 /* space allocation */
 229 #define xfs_alloc_search_busy(tp,ag,b,len)              ((void) 0)
 230 #define xfs_alloc_mark_busy(tp,ag,b,len)                ((void) 0)
 231
 232 /* anything else */
 233 typedef __uint32_t uint_t;
 234 typedef __uint32_t inst_t;      /* an instruction */
 235 typedef enum { B_FALSE, B_TRUE } boolean_t;
 236 typedef struct { dev_t dev; } buftarg_t;
 237 #define STATIC
 238 #define ATTR_ROOT       0x0002  /* use attrs in root namespace */
 239 #define ENOATTR         ENODATA /* Attribute not found */
 240 #define EFSCORRUPTED    990     /* Filesystem is corrupted */
 241 #define ktrace_t        void
 242 #define m_ddev_targp    m_dev
 243 #define m_rtdev_targp(m)(&(m)->m_rtdev)
 244 #define kdev_none(x)    (!(x))
 245 #define KERN_WARNING
 246 #define XFS_ERROR(e)    (e)
 247 #define XFS_TEST_ERROR(expr,a,b,c)      ( expr )
 248 #define TRACE_FREE(s,a,b,x,f)           ((void) 0)
 249 #define TRACE_ALLOC(s,a)                ((void) 0)
 250 #define TRACE_MODAGF(a,b,c)             ((void) 0)
 251 #define XFS_FORCED_SHUTDOWN(mp)         0
 252 #define XFS_MOUNT_WSYNC                 0       /* ignored in userspace */
 253 #define XFS_MOUNT_NOALIGN               0       /* ignored in userspace */
 254 #define XFS_MOUNT_32BITINODES           0x1     /* enforce in userspace */
 255 #define XFS_ILOCK_EXCL                  0
 256 #define down_read(a)                    ((void) 0)
 257 #define up_read(a)                      ((void) 0)
 258 #define mrlock(a,b,c)                   ((void) 0)
 259 #define mraccunlock(a)                  ((void) 0)
 260 #define mrunlock(a)                     ((void) 0)
 261 #define mraccess(a)                     ((void) 0)
 262 #define ismrlocked(a,b)                 1
 263 #define spinlock_init(a,b)              ((void) 0)
 264 #define ovbcopy(from,to,count)          memmove(to,from,count)
 265 #define __return_address                __builtin_return_address(0)
 266 #define xfs_btree_reada_bufl(m,fsb,c)   ((void) 0)
 267 #define xfs_btree_reada_bufs(m,fsb,c,x) ((void) 0)
 268 #undef  XFS_DIR_SHORTFORM_VALIDATE_ONDISK
 269 #define XFS_DIR_SHORTFORM_VALIDATE_ONDISK(mp,dip) 0
 270
 271 #if (__GNUC__ < 2) || ((__GNUC__ == 2) && (__GNUC_MINOR__ <= 95))
 272 # define xfs_fs_cmn_err(a,b,msg,args...)( fprintf(stderr, msg, ## args) )
 273 # define printk(msg,args...)            ( fprintf(stderr, msg, ## args) )
 274 #else
 275 # define xfs_fs_cmn_err(a,b,...)        ( fprintf(stderr, __VA_ARGS__) )
 276 # define printk(...)                    ( fprintf(stderr, __VA_ARGS__) )
 277 #endif
 278
 279 #define do_mod(a, b)    ((a) % (b))
 280 #define do_div(n,base)  ({ \
 281         int __res; \
 282         __res = ((unsigned long) n) % (unsigned) base; \
 283         n = ((unsigned long) n) / (unsigned) base; \
 284         __res; })
 285
 286 #include <asm/page.h>
 287 #define NBPP            PAGE_SIZE
 288
 289 static inline int atomicIncWithWrap(int *a, int b)
 290 {
 291         int r = *a;
 292         (*a)++;
 293         if (*a == b)
 294                 *a = 0;
 295         return r;
 296 }
 297
 298
 299 /*
 300  * Prototypes needed for a clean build
 301  */
 302
 303 /* xfs_alloc.c */
 304 int  xfs_alloc_get_freelist (xfs_trans_t *, xfs_buf_t *, xfs_agblock_t *);
 305 void xfs_alloc_log_agf (xfs_trans_t *, xfs_buf_t *, int);
 306 int  xfs_alloc_put_freelist (xfs_trans_t *, xfs_buf_t *, xfs_buf_t *,
 307                         xfs_agblock_t);
 308 int  xfs_alloc_read_agf (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 309                         int, xfs_buf_t **);
 310 int  xfs_alloc_vextent (xfs_alloc_arg_t *);
 311 int  xfs_alloc_pagf_init (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t, int);
 312 int  xfs_alloc_ag_vextent_size (xfs_alloc_arg_t *);
 313 int  xfs_alloc_ag_vextent_near (xfs_alloc_arg_t *);
 314 int  xfs_alloc_ag_vextent_exact (xfs_alloc_arg_t *);
 315 int  xfs_alloc_ag_vextent_small (xfs_alloc_arg_t *, xfs_btree_cur_t *,
 316                         xfs_agblock_t *, xfs_extlen_t *, int *);
 317
 318 /* xfs_ialloc.c */
 319 int  xfs_dialloc (xfs_trans_t *, xfs_ino_t, mode_t, int, xfs_buf_t **,
 320                         boolean_t *, xfs_ino_t *);
 321 void xfs_ialloc_log_agi (xfs_trans_t *, xfs_buf_t *, int);
 322 int  xfs_ialloc_read_agi (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 323                         xfs_buf_t **);
 324 int  xfs_dilocate (xfs_mount_t *, xfs_trans_t *, xfs_ino_t, xfs_fsblock_t *,
 325                         int *, int *, uint);
 326
 327 /* xfs_rtalloc.c */
 328 int  xfs_rtfree_extent (xfs_trans_t *, xfs_rtblock_t, xfs_extlen_t);
 329 int  xfs_rtmodify_range (xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
 330                         xfs_extlen_t, int);
 331 int  xfs_rtmodify_summary (xfs_mount_t *, xfs_trans_t *, int,
 332                         xfs_rtblock_t, int, xfs_buf_t **, xfs_fsblock_t *);
 333
 334 /* xfs_btree.c */
 335 extern xfs_zone_t *xfs_btree_cur_zone;
 336 void xfs_btree_check_key (xfs_btnum_t, void *, void *);
 337 void xfs_btree_check_rec (xfs_btnum_t, void *, void *);
 338 int  xfs_btree_check_lblock (xfs_btree_cur_t *, xfs_btree_lblock_t *,
 339                         int, xfs_buf_t *);
 340 int  xfs_btree_check_sblock (xfs_btree_cur_t *, xfs_btree_sblock_t *,
 341                         int, xfs_buf_t *);
 342 int  xfs_btree_check_sptr (xfs_btree_cur_t *, xfs_agblock_t, int);
 343 int  xfs_btree_check_lptr (xfs_btree_cur_t *, xfs_dfsbno_t, int);
 344 void xfs_btree_del_cursor (xfs_btree_cur_t *, int);
 345 int  xfs_btree_dup_cursor (xfs_btree_cur_t *, xfs_btree_cur_t **);
 346 int  xfs_btree_firstrec (xfs_btree_cur_t *, int);
 347 xfs_btree_block_t *xfs_btree_get_block (xfs_btree_cur_t *, int, xfs_buf_t **);
 348 xfs_buf_t *xfs_btree_get_bufs (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 349                         xfs_agblock_t, uint);
 350 xfs_buf_t *xfs_btree_get_bufl (xfs_mount_t *, xfs_trans_t *tp,
 351                         xfs_fsblock_t, uint);
 352 xfs_btree_cur_t *xfs_btree_init_cursor (xfs_mount_t *, xfs_trans_t *,
 353                         xfs_buf_t *, xfs_agnumber_t, xfs_btnum_t,
 354                         xfs_inode_t *, int);
 355 int  xfs_btree_islastblock (xfs_btree_cur_t *, int);
 356 int  xfs_btree_lastrec (xfs_btree_cur_t *, int);
 357 void xfs_btree_offsets (__int64_t, const short *, int, int *, int *);
 358 void xfs_btree_setbuf (xfs_btree_cur_t *, int, xfs_buf_t *);
 359 int  xfs_btree_read_bufs (xfs_mount_t *, xfs_trans_t *, xfs_agnumber_t,
 360                         xfs_agblock_t, uint, xfs_buf_t **, int);
 361 int  xfs_btree_read_bufl (xfs_mount_t *, xfs_trans_t *, xfs_fsblock_t,
 362                         uint, xfs_buf_t **, int);
 363 int  xfs_btree_readahead_core (xfs_btree_cur_t *, int, int);
 364 static inline int xfs_btree_readahead (xfs_btree_cur_t *cur, int lev, int lr)
 365 {
 366         if ((cur->bc_ra[lev] | lr) == cur->bc_ra[lev])
 367                 return 0;
 368         return xfs_btree_readahead_core(cur, lev, lr);
 369 }
 370
 371
 372 /* xfs_inode.c */
 373 int  xfs_ialloc (xfs_trans_t *, xfs_inode_t *, mode_t, nlink_t, dev_t, cred_t *,
 374                 xfs_prid_t, int, xfs_buf_t **, boolean_t *, xfs_inode_t **);
 375 int  xfs_iread_extents (xfs_trans_t *, xfs_inode_t *, int);
 376 int  xfs_imap (xfs_mount_t *, xfs_trans_t *, xfs_ino_t, xfs_imap_t *, uint);
 377 int  xfs_iextents_copy (xfs_inode_t *, xfs_bmbt_rec_32_t *, int);
 378 int  xfs_iflush_int (xfs_inode_t *, xfs_buf_t *);
 379 int  xfs_iflush_fork (xfs_inode_t *, xfs_dinode_t *, xfs_inode_log_item_t *,
 380                 int, xfs_buf_t *);
 381 int  xfs_iformat_local (xfs_inode_t *, xfs_dinode_t *, int, int);
 382 int  xfs_iformat_extents (xfs_inode_t *, xfs_dinode_t *, int);
 383 int  xfs_iformat_btree (xfs_inode_t *, xfs_dinode_t *, int);
 384 void xfs_iroot_realloc (xfs_inode_t *, int, int);
 385 void xfs_idata_realloc (xfs_inode_t *, int, int);
 386 void xfs_iext_realloc (xfs_inode_t *, int, int);
 387 void xfs_idestroy_fork (xfs_inode_t *, int);
 388 uint xfs_iroundup (uint);
 389
 390 /* xfs_bmap.c */
 391 xfs_bmbt_rec_t *xfs_bmap_search_extents (xfs_inode_t *ip,
 392                         xfs_fileoff_t, int, int *, xfs_extnum_t *,
 393                         xfs_bmbt_irec_t *, xfs_bmbt_irec_t *);
 394 int  xfs_bmap_read_extents (xfs_trans_t *, xfs_inode_t *, int);
 395 void xfs_bmap_add_free (xfs_fsblock_t, xfs_filblks_t, xfs_bmap_free_t *,
 396                         xfs_mount_t *);
 397 int  xfs_bmap_first_unused (xfs_trans_t *, xfs_inode_t *, xfs_extlen_t,
 398                         xfs_fileoff_t *, int);
 399 int  xfs_bmap_last_offset (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t *, int);
 400 int  xfs_bmap_last_before (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t *, int);
 401 int  xfs_bmap_one_block (xfs_inode_t *, int);
 402 int  xfs_bmapi_single (xfs_trans_t *, xfs_inode_t *, int, xfs_fsblock_t *,
 403                         xfs_fileoff_t);
 404 int  xfs_bmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t,
 405                         xfs_filblks_t, int, xfs_fsblock_t *, xfs_extlen_t,
 406                         xfs_bmbt_irec_t *, int *, xfs_bmap_free_t *);
 407 int  xfs_bunmapi (xfs_trans_t *, xfs_inode_t *, xfs_fileoff_t,
 408                         xfs_filblks_t, int, xfs_extnum_t, xfs_fsblock_t *,
 409                         xfs_bmap_free_t *, int *);
 410 int  xfs_bmap_add_extent_hole_delay (xfs_inode_t *ip, xfs_extnum_t,
 411                         xfs_btree_cur_t *, xfs_bmbt_irec_t *, int *, int);
 412 int  xfs_bmap_add_extent_hole_real (xfs_inode_t *, xfs_extnum_t,
 413                         xfs_btree_cur_t *, xfs_bmbt_irec_t *, int *, int);
 414 int  xfs_bmap_add_extent_unwritten_real (xfs_inode_t *, xfs_extnum_t,
 415                         xfs_btree_cur_t **, xfs_bmbt_irec_t *, int *);
 416 int  xfs_bmap_add_extent_delay_real (xfs_inode_t *, xfs_extnum_t,
 417                         xfs_btree_cur_t **, xfs_bmbt_irec_t *, xfs_filblks_t *,
 418                         xfs_fsblock_t *, xfs_bmap_free_t *, int *, int);
 419 int  xfs_bmap_extents_to_btree (xfs_trans_t *, xfs_inode_t *, xfs_fsblock_t *,
 420                         xfs_bmap_free_t *, xfs_btree_cur_t **, int, int *, int);
 421 void xfs_bmap_delete_exlist (xfs_inode_t *, xfs_extnum_t, xfs_extnum_t, int);
 422 xfs_filblks_t xfs_bmap_worst_indlen (xfs_inode_t *, xfs_filblks_t);
 423 int  xfs_bmap_isaeof (xfs_inode_t *, xfs_fileoff_t, int, int *);
 424 void xfs_bmap_insert_exlist (xfs_inode_t *, xfs_extnum_t, xfs_extnum_t,
 425                         xfs_bmbt_irec_t *, int);
 426
 427 /* xfs_bmap_btree.c */
 428 int  xfs_check_nostate_extents (xfs_bmbt_rec_t *, xfs_extnum_t);
 429 void xfs_bmbt_log_ptrs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 430 void xfs_bmbt_log_keys (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 431 int  xfs_bmbt_killroot (xfs_btree_cur_t *, int);
 432 int  xfs_bmbt_updkey (xfs_btree_cur_t *, xfs_bmbt_key_t *, int);
 433 int  xfs_bmbt_lshift (xfs_btree_cur_t *, int, int *);
 434 int  xfs_bmbt_rshift (xfs_btree_cur_t *, int, int *);
 435 int  xfs_bmbt_split (xfs_btree_cur_t *, int, xfs_fsblock_t *,
 436                         xfs_bmbt_key_t *, xfs_btree_cur_t **, int *);
 437
 438 /* xfs_ialloc_btree.c */
 439 int  xfs_inobt_newroot (xfs_btree_cur_t *, int *);
 440 int  xfs_inobt_rshift (xfs_btree_cur_t *, int, int *);
 441 int  xfs_inobt_lshift (xfs_btree_cur_t *, int, int *);
 442 int  xfs_inobt_split (xfs_btree_cur_t *, int, xfs_agblock_t *,
 443                         xfs_inobt_key_t *, xfs_btree_cur_t **, int *);
 444 void xfs_inobt_log_keys (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 445 void xfs_inobt_log_ptrs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 446 void xfs_inobt_log_recs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 447 void xfs_inobt_log_block (xfs_trans_t *, xfs_buf_t *, int);
 448 int  xfs_inobt_updkey (xfs_btree_cur_t *, xfs_inobt_key_t *, int);
 449
 450 /* xfs_alloc_btree.c */
 451 void xfs_alloc_log_ptrs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 452 void xfs_alloc_log_keys (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 453 void xfs_alloc_log_recs (xfs_btree_cur_t *, xfs_buf_t *, int, int);
 454 void xfs_alloc_log_block (xfs_trans_t *, xfs_buf_t *, int);
 455 int  xfs_alloc_updkey (xfs_btree_cur_t *, xfs_alloc_key_t *, int);
 456 int  xfs_alloc_lshift (xfs_btree_cur_t *, int, int *);
 457 int  xfs_alloc_rshift (xfs_btree_cur_t *, int, int *);
 458 int  xfs_alloc_newroot (xfs_btree_cur_t *, int *);
 459 int  xfs_alloc_split (xfs_btree_cur_t *, int, xfs_agblock_t *,
 460                         xfs_alloc_key_t *, xfs_btree_cur_t **, int *);
 461
 462 /* xfs_da_btree.c */
 463 xfs_dabuf_t *xfs_da_buf_make (int, xfs_buf_t **, inst_t *);
 464 int  xfs_da_root_join (xfs_da_state_t *, xfs_da_state_blk_t *);
 465 int  xfs_da_root_split (xfs_da_state_t *, xfs_da_state_blk_t *,
 466                         xfs_da_state_blk_t *);
 467 void xfs_da_node_add (xfs_da_state_t *, xfs_da_state_blk_t *,
 468                         xfs_da_state_blk_t *);
 469 int  xfs_da_node_split (xfs_da_state_t *, xfs_da_state_blk_t *,
 470                         xfs_da_state_blk_t *, xfs_da_state_blk_t *, int, int *);
 471 void xfs_da_node_rebalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 472                         xfs_da_state_blk_t *);
 473 void xfs_da_node_remove (xfs_da_state_t *, xfs_da_state_blk_t *);
 474 void xfs_da_node_unbalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 475                         xfs_da_state_blk_t *);
 476 int  xfs_da_node_order (xfs_dabuf_t *, xfs_dabuf_t *);
 477 int  xfs_da_node_toosmall (xfs_da_state_t *, int *);
 478 uint xfs_da_node_lasthash (xfs_dabuf_t *, int *);
 479 int  xfs_da_do_buf (xfs_trans_t *, xfs_inode_t *, xfs_dablk_t, xfs_daddr_t *,
 480                         xfs_dabuf_t **, int, int, inst_t *);
 481
 482 /* xfs_dir.c */
 483 int  xfs_dir_node_addname (xfs_da_args_t *);
 484 int  xfs_dir_leaf_lookup (xfs_da_args_t *);
 485 int  xfs_dir_node_lookup (xfs_da_args_t *);
 486 int  xfs_dir_leaf_replace (xfs_da_args_t *);
 487 int  xfs_dir_node_replace (xfs_da_args_t *);
 488 int  xfs_dir_node_removename (xfs_da_args_t *);
 489 int  xfs_dir_leaf_removename (xfs_da_args_t *, int *, int *);
 490
 491 /* xfs_dir_leaf.c */
 492 void xfs_dir_leaf_rebalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 493                         xfs_da_state_blk_t *);
 494 void xfs_dir_leaf_add_work (xfs_dabuf_t *, xfs_da_args_t *, int, int);
 495 int  xfs_dir_leaf_compact (xfs_trans_t *, xfs_dabuf_t *, int, int);
 496 int  xfs_dir_leaf_figure_balance (xfs_da_state_t *, xfs_da_state_blk_t *,
 497                         xfs_da_state_blk_t *, int *, int *);
 498 void xfs_dir_leaf_moveents (xfs_dir_leafblock_t *, int,
 499                         xfs_dir_leafblock_t *, int, int, xfs_mount_t *);
 500
 501 /* xfs_dir2_leaf.c */
 502 void xfs_dir2_leaf_check (xfs_inode_t *, xfs_dabuf_t *);
 503 int  xfs_dir2_leaf_lookup_int (xfs_da_args_t *, xfs_dabuf_t **,
 504                         int *, xfs_dabuf_t **);
 505
 506 /* xfs_dir2_block.c */
 507 void xfs_dir2_block_log_tail (xfs_trans_t *, xfs_dabuf_t *);
 508 void xfs_dir2_block_log_leaf (xfs_trans_t *, xfs_dabuf_t *, int, int);
 509 int  xfs_dir2_block_lookup_int (xfs_da_args_t *, xfs_dabuf_t **, int *);
 510
 511 /* xfs_dir2_node.c */
 512 void xfs_dir2_leafn_check (xfs_inode_t *, xfs_dabuf_t *);
 513 int  xfs_dir2_leafn_remove (xfs_da_args_t *, xfs_dabuf_t *, int,
 514                         xfs_da_state_blk_t *, int *);
 515 int  xfs_dir2_node_addname_int (xfs_da_args_t *, xfs_da_state_blk_t *);
 516
 517 /* xfs_dir2_sf.c */
 518 void xfs_dir2_sf_check (xfs_da_args_t *);
 519 int  xfs_dir2_sf_addname_pick (xfs_da_args_t *, int,
 520                         xfs_dir2_sf_entry_t **, xfs_dir2_data_aoff_t *);
 521 void xfs_dir2_sf_addname_easy (xfs_da_args_t *, xfs_dir2_sf_entry_t *,
 522                         xfs_dir2_data_aoff_t, int);
 523 void xfs_dir2_sf_addname_hard (xfs_da_args_t *, int, int);
 524 void xfs_dir2_sf_toino8 (xfs_da_args_t *);
 525 void xfs_dir2_sf_toino4 (xfs_da_args_t *);
 526
 527 /* xfs_attr_leaf.c */
 528 void xfs_attr_leaf_rebalance (xfs_da_state_t *, xfs_da_state_blk_t *,
 529                         xfs_da_state_blk_t *);
 530 int  xfs_attr_leaf_add_work (xfs_dabuf_t *, xfs_da_args_t *, int);
 531 void xfs_attr_leaf_compact (xfs_trans_t *, xfs_dabuf_t *);
 532 void xfs_attr_leaf_moveents (xfs_attr_leafblock_t *, int,
 533                         xfs_attr_leafblock_t *, int, int, xfs_mount_t *);
 534 int  xfs_attr_leaf_figure_balance (xfs_da_state_t *, xfs_da_state_blk_t *,
 535                         xfs_da_state_blk_t *, int *, int *);
 536
 537 /* xfs_trans_item.c */
 538 xfs_log_item_desc_t *xfs_trans_add_item (xfs_trans_t *, xfs_log_item_t *);
 539 xfs_log_item_desc_t *xfs_trans_find_item (xfs_trans_t *, xfs_log_item_t *);
 540 void xfs_trans_free_item (xfs_trans_t *, xfs_log_item_desc_t *);
 541 void xfs_trans_free_items (xfs_trans_t *, int);
 542
 543 /* xfs_trans_buf.c */
 544 xfs_buf_t *xfs_trans_buf_item_match (xfs_trans_t *, buftarg_t *,
 545                         xfs_daddr_t, int);
 546 xfs_buf_t *xfs_trans_buf_item_match_all (xfs_trans_t *, buftarg_t *,
 547                         xfs_daddr_t, int);
 548
 549 /* xfs_inode_item.c */
 550 void xfs_inode_item_init (xfs_inode_t *, xfs_mount_t *);
 551
 552 /* xfs_buf_item.c */
 553 void xfs_buf_item_init (xfs_buf_t *, xfs_mount_t *);
 554 void xfs_buf_item_log (xfs_buf_log_item_t *, uint, uint);
 555
 556 /* local source files */
 557 int  xfs_mod_incore_sb (xfs_mount_t *, xfs_sb_field_t, int, int);
 558 void xfs_trans_mod_sb (xfs_trans_t *, uint, long);
 559 int  xfs_trans_unlock_chunk (xfs_log_item_chunk_t *, int, int, xfs_lsn_t);
 560
 561
 562 #ifndef DEBUG
 563 #define xfs_inobp_check(mp,bp)                          ((void) 0)
 564 #define xfs_btree_check_key(a,b,c)                      ((void) 0)
 565 #define xfs_btree_check_rec(a,b,c)                      ((void) 0)
 566 #define xfs_btree_check_block(a,b,c,d)                  ((void) 0)
 567 #define xfs_dir2_sf_check(args)                         ((void) 0)
 568 #define xfs_dir2_leaf_check(dp,bp)                      ((void) 0)
 569 #define xfs_dir2_leafn_check(dp,bp)                     ((void) 0)
 570 #undef xfs_dir2_data_check
 571 #define xfs_dir2_data_check(dp,bp)                      ((void) 0)
 572 #endif