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2bd0ea18 1/*
0d3e0b37 2 * Copyright (c) 2000-2001 Silicon Graphics, Inc. All Rights Reserved.
5000d01d 3 *
2bd0ea18
NS		 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.
5000d01d 7 *
2bd0ea18
NS		 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.
5000d01d 11 *
2bd0ea18
NS		 12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
dfc130f3 14 * or the like. Any license provided herein, whether implied or
2bd0ea18
NS		 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.
5000d01d 18 *
2bd0ea18
NS		 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.
5000d01d 22 *
2bd0ea18
NS		 23 * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
24 * Mountain View, CA 94043, or:
5000d01d
SL		 25 *
26 * http://www.sgi.com
27 *
28 * For further information regarding this notice, see:
29 *
2bd0ea18
NS		 30 * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
31 */
32#ifndef __XFS_SB_H__
dfc130f3 33#define __XFS_SB_H__
2bd0ea18
NS		 34
35/*
36 * Super block
9440d84d 37 * Fits into a sector-sized buffer at address 0 of each allocation group.
2bd0ea18
NS		 38 * Only the first of these is ever updated except during growfs.
39 */
40
41struct xfs_buf;
42struct xfs_mount;
43
dfc130f3
RC		 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
73bf5988 59#define XFS_SB_VERSION_LOGV2BIT 0x0400
9440d84d 60#define XFS_SB_VERSION_SECTORBIT 0x0800
dfc130f3
RC		 61#define XFS_SB_VERSION_EXTFLGBIT 0x1000
62#define XFS_SB_VERSION_DIRV2BIT 0x2000
63#define XFS_SB_VERSION_OKSASHFBITS \
2bd0ea18
NS		 64 (XFS_SB_VERSION_EXTFLGBIT | \
65 XFS_SB_VERSION_DIRV2BIT)
dfc130f3 66#define XFS_SB_VERSION_OKREALFBITS \
2bd0ea18
NS		 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 | \
73bf5988 72 XFS_SB_VERSION_SHAREDBIT | \
9440d84d
NS		 73 XFS_SB_VERSION_LOGV2BIT | \
74 XFS_SB_VERSION_SECTORBIT)
dfc130f3 75#define XFS_SB_VERSION_OKSASHBITS \
2bd0ea18
NS		 76 (XFS_SB_VERSION_NUMBITS | \
77 XFS_SB_VERSION_REALFBITS | \
78 XFS_SB_VERSION_OKSASHFBITS)
dfc130f3 79#define XFS_SB_VERSION_OKREALBITS \
2bd0ea18
NS		 80 (XFS_SB_VERSION_NUMBITS | \
81 XFS_SB_VERSION_OKREALFBITS | \
82 XFS_SB_VERSION_OKSASHFBITS)
9440d84d 83#define XFS_SB_VERSION_MKFS(ia,dia,extflag,dirv2,na,sflag) \
73bf5988 84 (((ia) || (dia) || (extflag) || (dirv2) || (na)) ? \
2bd0ea18
NS		 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) | \
73bf5988 89 ((dirv2) ? XFS_SB_VERSION_DIRV2BIT : 0) | \
9440d84d
NS		 90 ((na) ? XFS_SB_VERSION_LOGV2BIT : 0) | \
91 ((sflag) ? XFS_SB_VERSION_SECTORBIT : 0)) : \
2bd0ea18
NS		 92 XFS_SB_VERSION_1)
93
94typedef 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 /*
dfc130f3 126 * These fields must remain contiguous. If you really
2bd0ea18
NS		 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 */
b36eef04 138 xfs_ino_t sb_gquotino; /* group quota inode */
2bd0ea18
NS		 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 */
5000d01d 144 __uint32_t sb_width; /* stripe or raid width */
2bd0ea18 145 __uint8_t sb_dirblklog; /* log2 of dir block size (fsbs) */
9440d84d
NS		 146 __uint8_t sb_logsectlog; /* log2 of the log sector size */
147 __uint16_t sb_logsectsize; /* sector size for the log, bytes */
73bf5988 148 __uint32_t sb_logsunit; /* stripe unit size for the log */
2bd0ea18
NS		 149} xfs_sb_t;
150
151/*
152 * Sequence number values for the fields.
153 */
154typedef 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,
b36eef04 164 XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN,
2bd0ea18 165 XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG,
9440d84d 166 XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT,
2bd0ea18
NS		 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 */
dfc130f3
RC		 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)
2bd0ea18 181#define XFS_SB_UQUOTINO XFS_SB_MVAL(UQUOTINO)
b36eef04 182#define XFS_SB_GQUOTINO XFS_SB_MVAL(GQUOTINO)
2bd0ea18
NS		 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)
dfc130f3
RC		 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 \
2bd0ea18 190 (XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \
b36eef04 191 XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \
2bd0ea18
NS		 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_SPACE && XFSSO_XFS_SB_VERSION_NUM)
207int xfs_sb_version_num(xfs_sb_t *sbp);
dfc130f3 208#define XFS_SB_VERSION_NUM(sbp) xfs_sb_version_num(sbp)
2bd0ea18 209#else
dfc130f3 210#define XFS_SB_VERSION_NUM(sbp) ((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS)
2bd0ea18
NS		 211#endif
212
213#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_GOOD_VERSION)
214int xfs_sb_good_version(xfs_sb_t *sbp);
dfc130f3 215#define XFS_SB_GOOD_VERSION(sbp) xfs_sb_good_version(sbp)
2bd0ea18 216#else
dfc130f3 217#define XFS_SB_GOOD_VERSION_INT(sbp) \
2bd0ea18
NS		 218 ((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \
219 ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \
220 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
221 !((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKREALBITS)
222#ifdef __KERNEL__
dfc130f3 223#define XFS_SB_GOOD_VERSION(sbp) \
2bd0ea18
NS		 224 (XFS_SB_GOOD_VERSION_INT(sbp) && \
225 (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN) ))
226#else
227/*
228 * extra 2 paren's here (( to unconfuse paren-matching editors
229 * like vi because XFS_SB_GOOD_VERSION_INT is a partial expression
230 * and the two XFS_SB_GOOD_VERSION's each 2 more close paren's to
231 * complete the expression.
232 */
233#define XFS_SB_GOOD_VERSION(sbp) \
234 (XFS_SB_GOOD_VERSION_INT(sbp) && \
235 (!((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) || \
236 (sbp)->sb_shared_vn <= XFS_SB_MAX_SHARED_VN)) ))
237#endif /* __KERNEL__ */
238#endif
239
dfc130f3 240#define XFS_SB_GOOD_SASH_VERSION(sbp) \
2bd0ea18
NS		 241 ((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \
242 ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \
243 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
244 !((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKSASHBITS)))
245
246#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TONEW)
247unsigned xfs_sb_version_tonew(unsigned v);
dfc130f3 248#define XFS_SB_VERSION_TONEW(v) xfs_sb_version_tonew(v)
2bd0ea18 249#else
dfc130f3 250#define XFS_SB_VERSION_TONEW(v) \
2bd0ea18
NS		 251 ((((v) == XFS_SB_VERSION_1) ? \
252 0 : \
253 (((v) == XFS_SB_VERSION_2) ? \
254 XFS_SB_VERSION_ATTRBIT : \
255 (XFS_SB_VERSION_ATTRBIT | XFS_SB_VERSION_NLINKBIT))) | \
256 XFS_SB_VERSION_4)
257#endif
258
259#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_TOOLD)
260unsigned xfs_sb_version_toold(unsigned v);
dfc130f3 261#define XFS_SB_VERSION_TOOLD(v) xfs_sb_version_toold(v)
2bd0ea18 262#else
dfc130f3 263#define XFS_SB_VERSION_TOOLD(v) \
2bd0ea18
NS		 264 (((v) & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT)) ? \
265 0 : \
266 (((v) & XFS_SB_VERSION_NLINKBIT) ? \
267 XFS_SB_VERSION_3 : \
268 (((v) & XFS_SB_VERSION_ATTRBIT) ? \
269 XFS_SB_VERSION_2 : \
270 XFS_SB_VERSION_1)))
271#endif
272
273#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASATTR)
274int xfs_sb_version_hasattr(xfs_sb_t *sbp);
dfc130f3 275#define XFS_SB_VERSION_HASATTR(sbp) xfs_sb_version_hasattr(sbp)
2bd0ea18 276#else
dfc130f3 277#define XFS_SB_VERSION_HASATTR(sbp) \
2bd0ea18
NS		 278 (((sbp)->sb_versionnum == XFS_SB_VERSION_2) || \
279 ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
280 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
281 ((sbp)->sb_versionnum & XFS_SB_VERSION_ATTRBIT)))
282#endif
283
284#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDATTR)
285void xfs_sb_version_addattr(xfs_sb_t *sbp);
dfc130f3 286#define XFS_SB_VERSION_ADDATTR(sbp) xfs_sb_version_addattr(sbp)
2bd0ea18 287#else
dfc130f3 288#define XFS_SB_VERSION_ADDATTR(sbp) \
2bd0ea18
NS		 289 ((sbp)->sb_versionnum = \
290 (((sbp)->sb_versionnum == XFS_SB_VERSION_1) ? \
291 XFS_SB_VERSION_2 : \
292 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) ? \
293 ((sbp)->sb_versionnum | XFS_SB_VERSION_ATTRBIT) : \
294 (XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT))))
295#endif
296
297#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASNLINK)
298int xfs_sb_version_hasnlink(xfs_sb_t *sbp);
dfc130f3 299#define XFS_SB_VERSION_HASNLINK(sbp) xfs_sb_version_hasnlink(sbp)
2bd0ea18 300#else
dfc130f3 301#define XFS_SB_VERSION_HASNLINK(sbp) \
2bd0ea18
NS		 302 (((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \
303 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
304 ((sbp)->sb_versionnum & XFS_SB_VERSION_NLINKBIT)))
305#endif
306
307#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDNLINK)
308void xfs_sb_version_addnlink(xfs_sb_t *sbp);
dfc130f3 309#define XFS_SB_VERSION_ADDNLINK(sbp) xfs_sb_version_addnlink(sbp)
2bd0ea18 310#else
dfc130f3 311#define XFS_SB_VERSION_ADDNLINK(sbp) \
2bd0ea18
NS		 312 ((sbp)->sb_versionnum = \
313 ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \
314 XFS_SB_VERSION_3 : \
315 ((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT)))
316#endif
317
318#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASQUOTA)
319int xfs_sb_version_hasquota(xfs_sb_t *sbp);
dfc130f3 320#define XFS_SB_VERSION_HASQUOTA(sbp) xfs_sb_version_hasquota(sbp)
2bd0ea18 321#else
dfc130f3 322#define XFS_SB_VERSION_HASQUOTA(sbp) \
2bd0ea18
NS		 323 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
324 ((sbp)->sb_versionnum & XFS_SB_VERSION_QUOTABIT))
325#endif
326
327#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDQUOTA)
328void xfs_sb_version_addquota(xfs_sb_t *sbp);
dfc130f3 329#define XFS_SB_VERSION_ADDQUOTA(sbp) xfs_sb_version_addquota(sbp)
2bd0ea18 330#else
dfc130f3 331#define XFS_SB_VERSION_ADDQUOTA(sbp) \
2bd0ea18
NS		 332 ((sbp)->sb_versionnum = \
333 (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4 ? \
334 ((sbp)->sb_versionnum | XFS_SB_VERSION_QUOTABIT) : \
335 (XFS_SB_VERSION_TONEW((sbp)->sb_versionnum) | \
336 XFS_SB_VERSION_QUOTABIT)))
337#endif
338
339#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASALIGN)
340int xfs_sb_version_hasalign(xfs_sb_t *sbp);
dfc130f3 341#define XFS_SB_VERSION_HASALIGN(sbp) xfs_sb_version_hasalign(sbp)
2bd0ea18 342#else
dfc130f3 343#define XFS_SB_VERSION_HASALIGN(sbp) \
2bd0ea18
NS		 344 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
345 ((sbp)->sb_versionnum & XFS_SB_VERSION_ALIGNBIT))
346#endif
347
348#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBALIGN)
349void xfs_sb_version_subalign(xfs_sb_t *sbp);
dfc130f3 350#define XFS_SB_VERSION_SUBALIGN(sbp) xfs_sb_version_subalign(sbp)
2bd0ea18 351#else
dfc130f3 352#define XFS_SB_VERSION_SUBALIGN(sbp) \
2bd0ea18
NS		 353 ((sbp)->sb_versionnum = \
354 XFS_SB_VERSION_TOOLD((sbp)->sb_versionnum & ~XFS_SB_VERSION_ALIGNBIT))
355#endif
356
357#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDALIGN)
358int xfs_sb_version_hasdalign(xfs_sb_t *sbp);
359#define XFS_SB_VERSION_HASDALIGN(sbp) xfs_sb_version_hasdalign(sbp)
360#else
361#define XFS_SB_VERSION_HASDALIGN(sbp) \
362 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
363 ((sbp)->sb_versionnum & XFS_SB_VERSION_DALIGNBIT))
364#endif
365
366#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDDALIGN)
367int xfs_sb_version_adddalign(xfs_sb_t *sbp);
368#define XFS_SB_VERSION_ADDDALIGN(sbp) xfs_sb_version_adddalign(sbp)
369#else
370#define XFS_SB_VERSION_ADDDALIGN(sbp) \
5000d01d
SL		 371 ((sbp)->sb_versionnum = \
372 ((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT))
2bd0ea18
NS		 373#endif
374
375#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSHARED)
376int xfs_sb_version_hasshared(xfs_sb_t *sbp);
377#define XFS_SB_VERSION_HASSHARED(sbp) xfs_sb_version_hasshared(sbp)
378#else
379#define XFS_SB_VERSION_HASSHARED(sbp) \
5000d01d 380 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
2bd0ea18
NS		 381 ((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT))
382#endif
383
384#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDSHARED)
385int xfs_sb_version_addshared(xfs_sb_t *sbp);
386#define XFS_SB_VERSION_ADDSHARED(sbp) xfs_sb_version_addshared(sbp)
387#else
388#define XFS_SB_VERSION_ADDSHARED(sbp) \
5000d01d
SL		 389 ((sbp)->sb_versionnum = \
390 ((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT))
2bd0ea18
NS		 391#endif
392
393#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBSHARED)
394int xfs_sb_version_subshared(xfs_sb_t *sbp);
395#define XFS_SB_VERSION_SUBSHARED(sbp) xfs_sb_version_subshared(sbp)
396#else
397#define XFS_SB_VERSION_SUBSHARED(sbp) \
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SL		 398 ((sbp)->sb_versionnum = \
399 ((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT))
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NS		 400#endif
401
402#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASDIRV2)
403int xfs_sb_version_hasdirv2(xfs_sb_t *sbp);
404#define XFS_SB_VERSION_HASDIRV2(sbp) xfs_sb_version_hasdirv2(sbp)
405#else
406#define XFS_SB_VERSION_HASDIRV2(sbp) \
5000d01d 407 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
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NS		 408 ((sbp)->sb_versionnum & XFS_SB_VERSION_DIRV2BIT))
409#endif
410
73bf5988
SL		 411#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASLOGV2)
412int xfs_sb_version_haslogv2(xfs_sb_t *sbp);
413#define XFS_SB_VERSION_HASLOGV2(sbp) xfs_sb_version_haslogv2(sbp)
414#else
415#define XFS_SB_VERSION_HASLOGV2(sbp) \
416 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
417 ((sbp)->sb_versionnum & XFS_SB_VERSION_LOGV2BIT))
418#endif
419
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NS		 420#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASEXTFLGBIT)
421int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp);
422#define XFS_SB_VERSION_HASEXTFLGBIT(sbp) xfs_sb_version_hasextflgbit(sbp)
423#else
424#define XFS_SB_VERSION_HASEXTFLGBIT(sbp) \
5000d01d 425 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
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NS		 426 ((sbp)->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT))
427#endif
428
429#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_ADDEXTFLGBIT)
430int xfs_sb_version_addextflgbit(xfs_sb_t *sbp);
431#define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) xfs_sb_version_addextflgbit(sbp)
432#else
433#define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) \
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SL		 434 ((sbp)->sb_versionnum = \
435 ((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT))
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NS		 436#endif
437
438#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_SUBEXTFLGBIT)
439int xfs_sb_version_subextflgbit(xfs_sb_t *sbp);
440#define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) xfs_sb_version_subextflgbit(sbp)
441#else
442#define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) \
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SL		 443 ((sbp)->sb_versionnum = \
444 ((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT))
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NS		 445#endif
446
9440d84d
NS		 447#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_VERSION_HASSECTOR)
448int xfs_sb_version_hassector(xfs_sb_t *sbp);
449#define XFS_SB_VERSION_HASSECTOR(sbp) xfs_sb_version_hassector(sbp)
450#else
451#define XFS_SB_VERSION_HASSECTOR(sbp) \
452 ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \
453 ((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT))
454#endif
455
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NS		 456/*
457 * end of superblock version macros
458 */
459
9440d84d 460#define XFS_SB_DADDR ((xfs_daddr_t)0) /* daddr in filesystem/ag */
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NS		 461#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_SB_BLOCK)
462xfs_agblock_t xfs_sb_block(struct xfs_mount *mp);
dfc130f3 463#define XFS_SB_BLOCK(mp) xfs_sb_block(mp)
2bd0ea18 464#else
dfc130f3 465#define XFS_SB_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_SB_DADDR)
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NS		 466#endif
467
468#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_HDR_BLOCK)
469xfs_agblock_t xfs_hdr_block(struct xfs_mount *mp, xfs_daddr_t d);
dfc130f3 470#define XFS_HDR_BLOCK(mp,d) xfs_hdr_block(mp,d)
2bd0ea18 471#else
dfc130f3 472#define XFS_HDR_BLOCK(mp,d) ((xfs_agblock_t)(XFS_BB_TO_FSBT(mp,d)))
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NS		 473#endif
474#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_DADDR_TO_FSB)
475xfs_fsblock_t xfs_daddr_to_fsb(struct xfs_mount *mp, xfs_daddr_t d);
dfc130f3 476#define XFS_DADDR_TO_FSB(mp,d) xfs_daddr_to_fsb(mp,d)
2bd0ea18 477#else
dfc130f3 478#define XFS_DADDR_TO_FSB(mp,d) \
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NS		 479 XFS_AGB_TO_FSB(mp, XFS_DADDR_TO_AGNO(mp,d), XFS_DADDR_TO_AGBNO(mp,d))
480#endif
481#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_FSB_TO_DADDR)
482xfs_daddr_t xfs_fsb_to_daddr(struct xfs_mount *mp, xfs_fsblock_t fsbno);
dfc130f3 483#define XFS_FSB_TO_DADDR(mp,fsbno) xfs_fsb_to_daddr(mp,fsbno)
2bd0ea18 484#else
dfc130f3 485#define XFS_FSB_TO_DADDR(mp,fsbno) \
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NS		 486 XFS_AGB_TO_DADDR(mp, XFS_FSB_TO_AGNO(mp,fsbno), \
487 XFS_FSB_TO_AGBNO(mp,fsbno))
488#endif
489
9440d84d
NS		 490#if XFS_WANT_FUNCS || (XFS_WANT_SPACE && XFSSO_XFS_BUF_TO_SBP)
491xfs_sb_t *xfs_buf_to_sbp(struct xfs_buf *bp);
492#define XFS_BUF_TO_SBP(bp) xfs_buf_to_sbp(bp)
493#else
494#define XFS_BUF_TO_SBP(bp) ((xfs_sb_t *)XFS_BUF_PTR(bp))
495#endif
496
497/*
498 * File system sector to basic block conversions.
499 */
500#define XFS_FSS_TO_BB(mp,sec) ((sec) << (mp)->m_sectbb_log)
501#define XFS_BB_TO_FSS(mp,bb) \
502 (((bb) + (XFS_FSS_TO_BB(mp,1) - 1)) >> (mp)->m_sectbb_log)
503#define XFS_BB_TO_FSST(mp,bb) ((bb) >> (mp)->m_sectbb_log)
504
505/*
506 * File system sector to byte conversions.
507 */
508#define XFS_FSS_TO_B(mp,sectno) ((xfs_fsize_t)(sectno) << (mp)->m_sb.sb_sectlog)
509#define XFS_B_TO_FSST(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_sectlog)
510
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NS		 511/*
512 * File system block to basic block conversions.
513 */
dfc130f3
RC		 514#define XFS_FSB_TO_BB(mp,fsbno) ((fsbno) << (mp)->m_blkbb_log)
515#define XFS_BB_TO_FSB(mp,bb) \
2bd0ea18 516 (((bb) + (XFS_FSB_TO_BB(mp,1) - 1)) >> (mp)->m_blkbb_log)
dfc130f3
RC		 517#define XFS_BB_TO_FSBT(mp,bb) ((bb) >> (mp)->m_blkbb_log)
518#define XFS_BB_FSB_OFFSET(mp,bb) ((bb) & ((mp)->m_bsize - 1))
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NS		 519
520/*
521 * File system block to byte conversions.
522 */
9440d84d 523#define XFS_FSB_TO_B(mp,fsbno) ((xfs_fsize_t)(fsbno) << (mp)->m_sb.sb_blocklog)
5000d01d 524#define XFS_B_TO_FSB(mp,b) \
2bd0ea18 525 ((((__uint64_t)(b)) + (mp)->m_blockmask) >> (mp)->m_sb.sb_blocklog)
5000d01d
SL		 526#define XFS_B_TO_FSBT(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_blocklog)
527#define XFS_B_FSB_OFFSET(mp,b) ((b) & (mp)->m_blockmask)
2bd0ea18 528
2bd0ea18 529#endif /* __XFS_SB_H__ */
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