sys/gnu/fs/xfs/xfs_sb.h

   1 /*
   2  * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or modify it
   5  * under the terms of version 2 of the GNU General Public License as
   6  * published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it would be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  11  *
  12  * Further, this software is distributed without any warranty that it is
  13  * free of the rightful claim of any third person regarding infringement
  14  * or the like.  Any license provided herein, whether implied or
  15  * otherwise, applies only to this software file.  Patent licenses, if
  16  * any, provided herein do not apply to combinations of this program with
  17  * other software, or any other product whatsoever.
  18  *
  19  * You should have received a copy of the GNU General Public License along
  20  * with this program; if not, write the Free Software Foundation, Inc., 59
  21  * Temple Place - Suite 330, Boston MA 02111-1307, USA.
  22  *
  23  * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
  24  * Mountain View, CA  94043, or:
  25  *
  26  * http://www.sgi.com
  27  *
  28  * For further information regarding this notice, see:
  29  *
  30  * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
  31  */
  32 #ifndef __XFS_SB_H__
  33 #define __XFS_SB_H__
  34
  35 /*
  36  * Super block
  37  * Fits into a sector-sized buffer at address 0 of each allocation group.
  38  * Only the first of these is ever updated except during growfs.
  39  */
  40
  41 struct xfs_buf;
  42 struct xfs_mount;
  43
  44 #define XFS_SB_MAGIC            0x58465342      /* 'XFSB' */
  45 #define XFS_SB_VERSION_1        1               /* 5.3, 6.0.1, 6.1 */
  46 #define XFS_SB_VERSION_2        2               /* 6.2 - attributes */
  47 #define XFS_SB_VERSION_3        3               /* 6.2 - new inode version */
  48 #define XFS_SB_VERSION_4        4               /* 6.2+ - bitmask version */
  49 #define XFS_SB_VERSION_NUMBITS          0x000f
  50 #define XFS_SB_VERSION_ALLFBITS         0xfff0
  51 #define XFS_SB_VERSION_SASHFBITS        0xf000
  52 #define XFS_SB_VERSION_REALFBITS        0x0ff0
  53 #define XFS_SB_VERSION_ATTRBIT          0x0010
  54 #define XFS_SB_VERSION_NLINKBIT         0x0020
  55 #define XFS_SB_VERSION_QUOTABIT         0x0040
  56 #define XFS_SB_VERSION_ALIGNBIT         0x0080
  57 #define XFS_SB_VERSION_DALIGNBIT        0x0100
  58 #define XFS_SB_VERSION_SHAREDBIT        0x0200
  59 #define XFS_SB_VERSION_LOGV2BIT         0x0400
  60 #define XFS_SB_VERSION_SECTORBIT        0x0800
  61 #define XFS_SB_VERSION_EXTFLGBIT        0x1000
  62 #define XFS_SB_VERSION_DIRV2BIT         0x2000
  63 #define XFS_SB_VERSION_OKSASHFBITS      \
  64         (XFS_SB_VERSION_EXTFLGBIT | \
  65          XFS_SB_VERSION_DIRV2BIT)
  66 #define XFS_SB_VERSION_OKREALFBITS      \
  67         (XFS_SB_VERSION_ATTRBIT | \
  68          XFS_SB_VERSION_NLINKBIT | \
  69          XFS_SB_VERSION_QUOTABIT | \
  70          XFS_SB_VERSION_ALIGNBIT | \
  71          XFS_SB_VERSION_DALIGNBIT | \
  72          XFS_SB_VERSION_SHAREDBIT | \
  73          XFS_SB_VERSION_LOGV2BIT | \
  74          XFS_SB_VERSION_SECTORBIT)
  75 #define XFS_SB_VERSION_OKSASHBITS       \
  76         (XFS_SB_VERSION_NUMBITS | \
  77          XFS_SB_VERSION_REALFBITS | \
  78          XFS_SB_VERSION_OKSASHFBITS)
  79 #define XFS_SB_VERSION_OKREALBITS       \
  80         (XFS_SB_VERSION_NUMBITS | \
  81          XFS_SB_VERSION_OKREALFBITS | \
  82          XFS_SB_VERSION_OKSASHFBITS)
  83 #define XFS_SB_VERSION_MKFS(ia,dia,extflag,dirv2,na,sflag)      \
  84         (((ia) || (dia) || (extflag) || (dirv2) || (na) || (sflag)) ? \
  85                 (XFS_SB_VERSION_4 | \
  86                  ((ia) ? XFS_SB_VERSION_ALIGNBIT : 0) | \
  87                  ((dia) ? XFS_SB_VERSION_DALIGNBIT : 0) | \
  88                  ((extflag) ? XFS_SB_VERSION_EXTFLGBIT : 0) | \
  89                  ((dirv2) ? XFS_SB_VERSION_DIRV2BIT : 0) | \
  90                  ((na) ? XFS_SB_VERSION_LOGV2BIT : 0) | \
  91                  ((sflag) ? XFS_SB_VERSION_SECTORBIT : 0)) : \
  92                 XFS_SB_VERSION_1)
  93
  94 typedef struct xfs_sb
  95 {
  96         __uint32_t      sb_magicnum;    /* magic number == XFS_SB_MAGIC */
  97         __uint32_t      sb_blocksize;   /* logical block size, bytes */
  98         xfs_drfsbno_t   sb_dblocks;     /* number of data blocks */
  99         xfs_drfsbno_t   sb_rblocks;     /* number of realtime blocks */
 100         xfs_drtbno_t    sb_rextents;    /* number of realtime extents */
 101         uuid_t          sb_uuid;        /* file system unique id */
 102         xfs_dfsbno_t    sb_logstart;    /* starting block of log if internal */
 103         xfs_ino_t       sb_rootino;     /* root inode number */
 104         xfs_ino_t       sb_rbmino;      /* bitmap inode for realtime extents */
 105         xfs_ino_t       sb_rsumino;     /* summary inode for rt bitmap */
 106         xfs_agblock_t   sb_rextsize;    /* realtime extent size, blocks */
 107         xfs_agblock_t   sb_agblocks;    /* size of an allocation group */
 108         xfs_agnumber_t  sb_agcount;     /* number of allocation groups */
 109         xfs_extlen_t    sb_rbmblocks;   /* number of rt bitmap blocks */
 110         xfs_extlen_t    sb_logblocks;   /* number of log blocks */
 111         __uint16_t      sb_versionnum;  /* header version == XFS_SB_VERSION */
 112         __uint16_t      sb_sectsize;    /* volume sector size, bytes */
 113         __uint16_t      sb_inodesize;   /* inode size, bytes */
 114         __uint16_t      sb_inopblock;   /* inodes per block */
 115         char            sb_fname[12];   /* file system name */
 116         __uint8_t       sb_blocklog;    /* log2 of sb_blocksize */
 117         __uint8_t       sb_sectlog;     /* log2 of sb_sectsize */
 118         __uint8_t       sb_inodelog;    /* log2 of sb_inodesize */
 119         __uint8_t       sb_inopblog;    /* log2 of sb_inopblock */
 120         __uint8_t       sb_agblklog;    /* log2 of sb_agblocks (rounded up) */
 121         __uint8_t       sb_rextslog;    /* log2 of sb_rextents */
 122         __uint8_t       sb_inprogress;  /* mkfs is in progress, don't mount */
 123         __uint8_t       sb_imax_pct;    /* max % of fs for inode space */
 124                                         /* statistics */
 125         /*
 126          * These fields must remain contiguous.  If you really
 127          * want to change their layout, make sure you fix the
 128          * code in xfs_trans_apply_sb_deltas().
 129          */
 130         __uint64_t      sb_icount;      /* allocated inodes */
 131         __uint64_t      sb_ifree;       /* free inodes */
 132         __uint64_t      sb_fdblocks;    /* free data blocks */
 133         __uint64_t      sb_frextents;   /* free realtime extents */
 134         /*
 135          * End contiguous fields.
 136          */
 137         xfs_ino_t       sb_uquotino;    /* user quota inode */
 138         xfs_ino_t       sb_gquotino;    /* group quota inode */
 139         __uint16_t      sb_qflags;      /* quota flags */
 140         __uint8_t       sb_flags;       /* misc. flags */
 141         __uint8_t       sb_shared_vn;   /* shared version number */
 142         xfs_extlen_t    sb_inoalignmt;  /* inode chunk alignment, fsblocks */
 143         __uint32_t      sb_unit;        /* stripe or raid unit */
 144         __uint32_t      sb_width;       /* stripe or raid width */
 145         __uint8_t       sb_dirblklog;   /* log2 of dir block size (fsbs) */
 146         __uint8_t       sb_logsectlog;  /* log2 of the log sector size */
 147         __uint16_t      sb_logsectsize; /* sector size for the log, bytes */
 148         __uint32_t      sb_logsunit;    /* stripe unit size for the log */
 149 } xfs_sb_t;
 150
 151 /*
 152  * Sequence number values for the fields.
 153  */
 154 typedef enum {
 155         XFS_SBS_MAGICNUM, XFS_SBS_BLOCKSIZE, XFS_SBS_DBLOCKS, XFS_SBS_RBLOCKS,
 156         XFS_SBS_REXTENTS, XFS_SBS_UUID, XFS_SBS_LOGSTART, XFS_SBS_ROOTINO,
 157         XFS_SBS_RBMINO, XFS_SBS_RSUMINO, XFS_SBS_REXTSIZE, XFS_SBS_AGBLOCKS,
 158         XFS_SBS_AGCOUNT, XFS_SBS_RBMBLOCKS, XFS_SBS_LOGBLOCKS,
 159         XFS_SBS_VERSIONNUM, XFS_SBS_SECTSIZE, XFS_SBS_INODESIZE,
 160         XFS_SBS_INOPBLOCK, XFS_SBS_FNAME, XFS_SBS_BLOCKLOG,
 161         XFS_SBS_SECTLOG, XFS_SBS_INODELOG, XFS_SBS_INOPBLOG, XFS_SBS_AGBLKLOG,
 162         XFS_SBS_REXTSLOG, XFS_SBS_INPROGRESS, XFS_SBS_IMAX_PCT, XFS_SBS_ICOUNT,
 163         XFS_SBS_IFREE, XFS_SBS_FDBLOCKS, XFS_SBS_FREXTENTS, XFS_SBS_UQUOTINO,
 164         XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN,
 165         XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG,
 166         XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
 167         XFS_SBS_FIELDCOUNT
 168 } xfs_sb_field_t;
 169
 170 /*
 171  * Mask values, defined based on the xfs_sb_field_t values.
 172  * Only define the ones we're using.
 173  */
 174 #define XFS_SB_MVAL(x)          (1LL << XFS_SBS_ ## x)
 175 #define XFS_SB_UUID             XFS_SB_MVAL(UUID)
 176 #define XFS_SB_FNAME            XFS_SB_MVAL(FNAME)
 177 #define XFS_SB_ROOTINO          XFS_SB_MVAL(ROOTINO)
 178 #define XFS_SB_RBMINO           XFS_SB_MVAL(RBMINO)
 179 #define XFS_SB_RSUMINO          XFS_SB_MVAL(RSUMINO)
 180 #define XFS_SB_VERSIONNUM       XFS_SB_MVAL(VERSIONNUM)
 181 #define XFS_SB_UQUOTINO         XFS_SB_MVAL(UQUOTINO)
 182 #define XFS_SB_GQUOTINO         XFS_SB_MVAL(GQUOTINO)
 183 #define XFS_SB_QFLAGS           XFS_SB_MVAL(QFLAGS)
 184 #define XFS_SB_SHARED_VN        XFS_SB_MVAL(SHARED_VN)
 185 #define XFS_SB_UNIT             XFS_SB_MVAL(UNIT)
 186 #define XFS_SB_WIDTH            XFS_SB_MVAL(WIDTH)
 187 #define XFS_SB_NUM_BITS         ((int)XFS_SBS_FIELDCOUNT)
 188 #define XFS_SB_ALL_BITS         ((1LL << XFS_SB_NUM_BITS) - 1)
 189 #define XFS_SB_MOD_BITS         \
 190         (XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
 191          XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
 192          XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH)
 193
 194 /*
 195  * Misc. Flags - warning - these will be cleared by xfs_repair unless
 196  * a feature bit is set when the flag is used.
 197  */
 198 #define XFS_SBF_NOFLAGS         0x00    /* no flags set */
 199 #define XFS_SBF_READONLY        0x01    /* only read-only mounts allowed */
 200
 201 /*
 202  * define max. shared version we can interoperate with
 203  */
 204 #define XFS_SB_MAX_SHARED_VN    0
 205
 206 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_NUM)
 207 int xfs_sb_version_num(xfs_sb_t *sbp);
 208 #endif
 209
 210 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_NUM)
 211 #define XFS_SB_VERSION_NUM(sbp) xfs_sb_version_num(sbp)
 212 #else
 213 #define XFS_SB_VERSION_NUM(sbp) ((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
 214 #endif
 215
 216 #if XFS_WANT_FUNCS ||  XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_GOOD_VERSION)
 217 int xfs_sb_good_version(xfs_sb_t *sbp);
 218 #endif
 219
 220 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_GOOD_VERSION)
 221 #define XFS_SB_GOOD_VERSION(sbp)        xfs_sb_good_version(sbp)
 222 #else
 223 #define XFS_SB_GOOD_VERSION_INT(sbp)    \
 224         ((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \
 225           ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \
 226          ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 227           !((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKREALBITS)
 228 #ifdef __KERNEL__
 229 #define XFS_SB_GOOD_VERSION(sbp)        \
 230         (XFS_SB_GOOD_VERSION_INT(sbp) && \
 231           (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN) ))
 232 #else
 233 /*
 234  * extra 2 paren's here (( to unconfuse paren-matching editors
 235  * like vi because XFS_SB_GOOD_VERSION_INT is a partial expression
 236  * and the two XFS_SB_GOOD_VERSION's each 2 more close paren's to
 237  * complete the expression.
 238  */
 239 #define XFS_SB_GOOD_VERSION(sbp)        \
 240         (XFS_SB_GOOD_VERSION_INT(sbp) && \
 241           (!((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) || \
 242            (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN)) ))
 243 #endif /* __KERNEL__ */
 244 #endif
 245
 246 #define XFS_SB_GOOD_SASH_VERSION(sbp)   \
 247         ((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \
 248           ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \
 249          ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 250           !((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKSASHBITS)))
 251
 252 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TONEW)
 253 unsigned xfs_sb_version_tonew(unsigned v);
 254 #endif
 255
 256 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TONEW)
 257 #define XFS_SB_VERSION_TONEW(v) xfs_sb_version_tonew(v)
 258 #else
 259 #define XFS_SB_VERSION_TONEW(v) \
 260         ((((v) == XFS_SB_VERSION_1) ? \
 261                 0 : \
 262                 (((v) == XFS_SB_VERSION_2) ? \
 263                         XFS_SB_VERSION_ATTRBIT : \
 264                         (XFS_SB_VERSION_ATTRBIT | XFS_SB_VERSION_NLINKBIT))) | \
 265          XFS_SB_VERSION_4)
 266 #endif
 267
 268 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TOOLD)
 269 #endif
 270
 271 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TOOLD)
 272 unsigned xfs_sb_version_toold(unsigned v);
 273 #endif
 274
 275 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TOOLD)
 276 #define XFS_SB_VERSION_TOOLD(v) xfs_sb_version_toold(v)
 277 #else
 278 #define XFS_SB_VERSION_TOOLD(v) \
 279         (((v) & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT)) ? \
 280                 0 : \
 281                 (((v) & XFS_SB_VERSION_NLINKBIT) ? \
 282                         XFS_SB_VERSION_3 : \
 283                         (((v) & XFS_SB_VERSION_ATTRBIT) ?  \
 284                                 XFS_SB_VERSION_2 : \
 285                                 XFS_SB_VERSION_1)))
 286 #endif
 287
 288 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASATTR)
 289 int xfs_sb_version_hasattr(xfs_sb_t *sbp);
 290 #endif
 291
 292 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASATTR)
 293 #define XFS_SB_VERSION_HASATTR(sbp)     xfs_sb_version_hasattr(sbp)
 294 #else
 295 #define XFS_SB_VERSION_HASATTR(sbp)     \
 296         (((sbp)->sb_versionnum == XFS_SB_VERSION_2) || \
 297          ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
 298          ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 299           ((sbp)->sb_versionnum & XFS_SB_VERSION_ATTRBIT)))
 300 #endif
 301
 302 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDATTR)
 303 void xfs_sb_version_addattr(xfs_sb_t *sbp);
 304 #endif
 305
 306 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDATTR)
 307 #define XFS_SB_VERSION_ADDATTR(sbp)     xfs_sb_version_addattr(sbp)
 308 #else
 309 #define XFS_SB_VERSION_ADDATTR(sbp)     \
 310         ((sbp)->sb_versionnum = \
 311          (((sbp)->sb_versionnum == XFS_SB_VERSION_1) ? \
 312                 XFS_SB_VERSION_2 : \
 313                 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) ? \
 314                         ((sbp)->sb_versionnum | XFS_SB_VERSION_ATTRBIT) : \
 315                         (XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT))))
 316 #endif
 317
 318 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASNLINK)
 319 int xfs_sb_version_hasnlink(xfs_sb_t *sbp);
 320 #endif
 321
 322 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASNLINK)
 323 #define XFS_SB_VERSION_HASNLINK(sbp)    xfs_sb_version_hasnlink(sbp)
 324 #else
 325 #define XFS_SB_VERSION_HASNLINK(sbp)    \
 326         (((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
 327          ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 328           ((sbp)->sb_versionnum & XFS_SB_VERSION_NLINKBIT)))
 329 #endif
 330
 331 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDNLINK)
 332 void xfs_sb_version_addnlink(xfs_sb_t *sbp);
 333 #endif
 334
 335 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDNLINK)
 336 #define XFS_SB_VERSION_ADDNLINK(sbp)    xfs_sb_version_addnlink(sbp)
 337 #else
 338 #define XFS_SB_VERSION_ADDNLINK(sbp)    \
 339         ((sbp)->sb_versionnum = \
 340          ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \
 341                 XFS_SB_VERSION_3 : \
 342                 ((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT)))
 343 #endif
 344
 345 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASQUOTA)
 346 int xfs_sb_version_hasquota(xfs_sb_t *sbp);
 347 #endif
 348
 349 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASQUOTA)
 350 #define XFS_SB_VERSION_HASQUOTA(sbp)    xfs_sb_version_hasquota(sbp)
 351 #else
 352 #define XFS_SB_VERSION_HASQUOTA(sbp)    \
 353         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 354          ((sbp)->sb_versionnum & XFS_SB_VERSION_QUOTABIT))
 355 #endif
 356
 357 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDQUOTA)
 358 void xfs_sb_version_addquota(xfs_sb_t *sbp);
 359 #endif
 360
 361 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDQUOTA)
 362 #define XFS_SB_VERSION_ADDQUOTA(sbp)    xfs_sb_version_addquota(sbp)
 363 #else
 364 #define XFS_SB_VERSION_ADDQUOTA(sbp)    \
 365         ((sbp)->sb_versionnum = \
 366          (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 ? \
 367                 ((sbp)->sb_versionnum | XFS_SB_VERSION_QUOTABIT) : \
 368                 (XFS_SB_VERSION_TONEW((sbp)->sb_versionnum) | \
 369                  XFS_SB_VERSION_QUOTABIT)))
 370 #endif
 371
 372 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASALIGN)
 373 int xfs_sb_version_hasalign(xfs_sb_t *sbp);
 374 #endif
 375
 376 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASALIGN)
 377 #define XFS_SB_VERSION_HASALIGN(sbp)    xfs_sb_version_hasalign(sbp)
 378 #else
 379 #define XFS_SB_VERSION_HASALIGN(sbp)    \
 380         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 381          ((sbp)->sb_versionnum & XFS_SB_VERSION_ALIGNBIT))
 382 #endif
 383
 384 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBALIGN)
 385 void xfs_sb_version_subalign(xfs_sb_t *sbp);
 386 #endif
 387
 388 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBALIGN)
 389 #define XFS_SB_VERSION_SUBALIGN(sbp)    xfs_sb_version_subalign(sbp)
 390 #else
 391 #define XFS_SB_VERSION_SUBALIGN(sbp)    \
 392         ((sbp)->sb_versionnum = \
 393          XFS_SB_VERSION_TOOLD((sbp)->sb_versionnum & ~XFS_SB_VERSION_ALIGNBIT))
 394 #endif
 395
 396 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDALIGN)
 397 int xfs_sb_version_hasdalign(xfs_sb_t *sbp);
 398 #endif
 399
 400 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDALIGN)
 401 #define XFS_SB_VERSION_HASDALIGN(sbp)   xfs_sb_version_hasdalign(sbp)
 402 #else
 403 #define XFS_SB_VERSION_HASDALIGN(sbp)   \
 404         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 405          ((sbp)->sb_versionnum & XFS_SB_VERSION_DALIGNBIT))
 406 #endif
 407
 408 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDDALIGN)
 409 int xfs_sb_version_adddalign(xfs_sb_t *sbp);
 410 #endif
 411
 412 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDDALIGN)
 413 #define XFS_SB_VERSION_ADDDALIGN(sbp)   xfs_sb_version_adddalign(sbp)
 414 #else
 415 #define XFS_SB_VERSION_ADDDALIGN(sbp)   \
 416         ((sbp)->sb_versionnum = \
 417                 ((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT))
 418 #endif
 419
 420 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSHARED)
 421 int xfs_sb_version_hasshared(xfs_sb_t *sbp);
 422 #endif
 423
 424 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSHARED)
 425 #define XFS_SB_VERSION_HASSHARED(sbp)   xfs_sb_version_hasshared(sbp)
 426 #else
 427 #define XFS_SB_VERSION_HASSHARED(sbp)   \
 428         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 429          ((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT))
 430 #endif
 431
 432 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDSHARED)
 433 int xfs_sb_version_addshared(xfs_sb_t *sbp);
 434 #endif
 435
 436 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDSHARED)
 437 #define XFS_SB_VERSION_ADDSHARED(sbp)   xfs_sb_version_addshared(sbp)
 438 #else
 439 #define XFS_SB_VERSION_ADDSHARED(sbp)   \
 440         ((sbp)->sb_versionnum = \
 441                 ((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT))
 442 #endif
 443
 444 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBSHARED)
 445 int xfs_sb_version_subshared(xfs_sb_t *sbp);
 446 #endif
 447
 448 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBSHARED)
 449 #define XFS_SB_VERSION_SUBSHARED(sbp)   xfs_sb_version_subshared(sbp)
 450 #else
 451 #define XFS_SB_VERSION_SUBSHARED(sbp)   \
 452         ((sbp)->sb_versionnum = \
 453                 ((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT))
 454 #endif
 455
 456 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDIRV2)
 457 int xfs_sb_version_hasdirv2(xfs_sb_t *sbp);
 458 #endif
 459
 460 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDIRV2)
 461 #define XFS_SB_VERSION_HASDIRV2(sbp)    xfs_sb_version_hasdirv2(sbp)
 462 #else
 463 #define XFS_SB_VERSION_HASDIRV2(sbp)    \
 464         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 465          ((sbp)->sb_versionnum & XFS_SB_VERSION_DIRV2BIT))
 466 #endif
 467
 468 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASLOGV2)
 469 int xfs_sb_version_haslogv2(xfs_sb_t *sbp);
 470 #endif
 471
 472 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASLOGV2)
 473 #define XFS_SB_VERSION_HASLOGV2(sbp)   xfs_sb_version_haslogv2(sbp)
 474 #else
 475 #define XFS_SB_VERSION_HASLOGV2(sbp)   \
 476         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 477         ((sbp)->sb_versionnum & XFS_SB_VERSION_LOGV2BIT))
 478 #endif
 479
 480 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASEXTFLGBIT)
 481 int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp);
 482 #endif
 483
 484 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASEXTFLGBIT)
 485 #define XFS_SB_VERSION_HASEXTFLGBIT(sbp)        xfs_sb_version_hasextflgbit(sbp)
 486 #else
 487 #define XFS_SB_VERSION_HASEXTFLGBIT(sbp)        \
 488         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 489          ((sbp)->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT))
 490 #endif
 491
 492 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDEXTFLGBIT)
 493 int xfs_sb_version_addextflgbit(xfs_sb_t *sbp);
 494 #endif
 495
 496 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDEXTFLGBIT)
 497 #define XFS_SB_VERSION_ADDEXTFLGBIT(sbp)        xfs_sb_version_addextflgbit(sbp)
 498 #else
 499 #define XFS_SB_VERSION_ADDEXTFLGBIT(sbp)        \
 500         ((sbp)->sb_versionnum = \
 501                 ((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT))
 502 #endif
 503
 504 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBEXTFLGBIT)
 505 int xfs_sb_version_subextflgbit(xfs_sb_t *sbp);
 506 #endif
 507
 508 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBEXTFLGBIT)
 509 #define XFS_SB_VERSION_SUBEXTFLGBIT(sbp)        xfs_sb_version_subextflgbit(sbp)
 510 #else
 511 #define XFS_SB_VERSION_SUBEXTFLGBIT(sbp)        \
 512         ((sbp)->sb_versionnum = \
 513                 ((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT))
 514 #endif
 515
 516 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSECTOR)
 517 int xfs_sb_version_hassector(xfs_sb_t *sbp);
 518 #endif
 519
 520 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSECTOR)
 521 #define XFS_SB_VERSION_HASSECTOR(sbp)   xfs_sb_version_hassector(sbp)
 522 #else
 523 #define XFS_SB_VERSION_HASSECTOR(sbp)   \
 524         ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
 525         ((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT))
 526 #endif
 527
 528 /*
 529  * end of superblock version macros
 530  */
 531
 532 #define XFS_SB_DADDR    ((xfs_daddr_t)0)        /* daddr in filesystem/ag */
 533 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_SB_BLOCK)
 534 xfs_agblock_t xfs_sb_block(struct xfs_mount *mp);
 535 #endif
 536 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_BLOCK)
 537 #define XFS_SB_BLOCK(mp)        xfs_sb_block(mp)
 538 #else
 539 #define XFS_SB_BLOCK(mp)        XFS_HDR_BLOCK(mp, XFS_SB_DADDR)
 540 #endif
 541
 542 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_HDR_BLOCK)
 543 xfs_agblock_t xfs_hdr_block(struct xfs_mount *mp, xfs_daddr_t d);
 544 #endif
 545
 546 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_HDR_BLOCK)
 547 #define XFS_HDR_BLOCK(mp,d)     xfs_hdr_block(mp,d)
 548 #else
 549 #define XFS_HDR_BLOCK(mp,d)     ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp,d)))
 550 #endif
 551
 552 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_FSB)
 553 xfs_fsblock_t xfs_daddr_to_fsb(struct xfs_mount *mp, xfs_daddr_t d);
 554 #endif
 555
 556 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_FSB)
 557 #define XFS_DADDR_TO_FSB(mp,d)          xfs_daddr_to_fsb(mp,d)
 558 #else
 559 #define XFS_DADDR_TO_FSB(mp,d) \
 560         XFS_AGB_TO_FSB(mp, XFS_DADDR_TO_AGNO(mp,d), XFS_DADDR_TO_AGBNO(mp,d))
 561 #endif
 562
 563 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_DADDR)
 564 xfs_daddr_t xfs_fsb_to_daddr(struct xfs_mount *mp, xfs_fsblock_t fsbno);
 565 #endif
 566
 567 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_DADDR)
 568 #define XFS_FSB_TO_DADDR(mp,fsbno)      xfs_fsb_to_daddr(mp,fsbno)
 569 #else
 570 #define XFS_FSB_TO_DADDR(mp,fsbno) \
 571         XFS_AGB_TO_DADDR(mp, XFS_FSB_TO_AGNO(mp,fsbno), \
 572                          XFS_FSB_TO_AGBNO(mp,fsbno))
 573 #endif
 574
 575 #if XFS_WANT_FUNCS || XFS_WANT_FUNCS_C || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_SBP)
 576 xfs_sb_t *xfs_buf_to_sbp(struct xfs_buf *bp);
 577 #endif
 578
 579 #if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_SBP)
 580 #define XFS_BUF_TO_SBP(bp)      xfs_buf_to_sbp(bp)
 581 #else
 582 #define XFS_BUF_TO_SBP(bp)      ((xfs_sb_t *)XFS_BUF_PTR(bp))
 583 #endif
 584
 585 /*
 586  * File system sector to basic block conversions.
 587  */
 588 #define XFS_FSS_TO_BB(mp,sec)   ((sec) << (mp)->m_sectbb_log)
 589 #define XFS_BB_TO_FSS(mp,bb)    \
 590         (((bb) + (XFS_FSS_TO_BB(mp,1) - 1)) >> (mp)->m_sectbb_log)
 591 #define XFS_BB_TO_FSST(mp,bb)   ((bb) >> (mp)->m_sectbb_log)
 592
 593 /*
 594  * File system sector to byte conversions.
 595  */
 596 #define XFS_FSS_TO_B(mp,sectno) ((xfs_fsize_t)(sectno) << (mp)->m_sb.sb_sectlog)
 597 #define XFS_B_TO_FSST(mp,b)     (((__uint64_t)(b)) >> (mp)->m_sb.sb_sectlog)
 598
 599 /*
 600  * File system block to basic block conversions.
 601  */
 602 #define XFS_FSB_TO_BB(mp,fsbno) ((fsbno) << (mp)->m_blkbb_log)
 603 #define XFS_BB_TO_FSB(mp,bb)    \
 604         (((bb) + (XFS_FSB_TO_BB(mp,1) - 1)) >> (mp)->m_blkbb_log)
 605 #define XFS_BB_TO_FSBT(mp,bb)   ((bb) >> (mp)->m_blkbb_log)
 606 #define XFS_BB_FSB_OFFSET(mp,bb) ((bb) & ((mp)->m_bsize - 1))
 607
 608 /*
 609  * File system block to byte conversions.
 610  */
 611 #define XFS_FSB_TO_B(mp,fsbno)  ((xfs_fsize_t)(fsbno) << (mp)->m_sb.sb_blocklog)
 612 #define XFS_B_TO_FSB(mp,b)      \
 613         ((((__uint64_t)(b)) + (mp)->m_blockmask) >> (mp)->m_sb.sb_blocklog)
 614 #define XFS_B_TO_FSBT(mp,b)     (((__uint64_t)(b)) >> (mp)->m_sb.sb_blocklog)
 615 #define XFS_B_FSB_OFFSET(mp,b)  ((b) & (mp)->m_blockmask)
 616
 617 #endif  /* __XFS_SB_H__ */