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2bd0ea18 | 1 | /* |
f302e9e4 NS |
2 | * Copyright (c) 2000-2005 Silicon Graphics, Inc. |
3 | * All Rights Reserved. | |
5000d01d | 4 | * |
f302e9e4 NS |
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 | |
2bd0ea18 | 7 | * published by the Free Software Foundation. |
5000d01d | 8 | * |
f302e9e4 NS |
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. | |
5000d01d | 13 | * |
f302e9e4 NS |
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 | |
2bd0ea18 NS |
17 | */ |
18 | #ifndef __XFS_SB_H__ | |
dfc130f3 | 19 | #define __XFS_SB_H__ |
2bd0ea18 NS |
20 | |
21 | /* | |
22 | * Super block | |
9440d84d | 23 | * Fits into a sector-sized buffer at address 0 of each allocation group. |
2bd0ea18 NS |
24 | * Only the first of these is ever updated except during growfs. |
25 | */ | |
26 | ||
27 | struct xfs_buf; | |
28 | struct xfs_mount; | |
29 | ||
dfc130f3 RC |
30 | #define XFS_SB_MAGIC 0x58465342 /* 'XFSB' */ |
31 | #define XFS_SB_VERSION_1 1 /* 5.3, 6.0.1, 6.1 */ | |
32 | #define XFS_SB_VERSION_2 2 /* 6.2 - attributes */ | |
33 | #define XFS_SB_VERSION_3 3 /* 6.2 - new inode version */ | |
34 | #define XFS_SB_VERSION_4 4 /* 6.2+ - bitmask version */ | |
35 | #define XFS_SB_VERSION_NUMBITS 0x000f | |
36 | #define XFS_SB_VERSION_ALLFBITS 0xfff0 | |
37 | #define XFS_SB_VERSION_SASHFBITS 0xf000 | |
38 | #define XFS_SB_VERSION_REALFBITS 0x0ff0 | |
39 | #define XFS_SB_VERSION_ATTRBIT 0x0010 | |
40 | #define XFS_SB_VERSION_NLINKBIT 0x0020 | |
41 | #define XFS_SB_VERSION_QUOTABIT 0x0040 | |
42 | #define XFS_SB_VERSION_ALIGNBIT 0x0080 | |
43 | #define XFS_SB_VERSION_DALIGNBIT 0x0100 | |
44 | #define XFS_SB_VERSION_SHAREDBIT 0x0200 | |
73bf5988 | 45 | #define XFS_SB_VERSION_LOGV2BIT 0x0400 |
9440d84d | 46 | #define XFS_SB_VERSION_SECTORBIT 0x0800 |
dfc130f3 RC |
47 | #define XFS_SB_VERSION_EXTFLGBIT 0x1000 |
48 | #define XFS_SB_VERSION_DIRV2BIT 0x2000 | |
465e76a9 | 49 | #define XFS_SB_VERSION_MOREBITSBIT 0x8000 |
dfc130f3 | 50 | #define XFS_SB_VERSION_OKSASHFBITS \ |
2bd0ea18 NS |
51 | (XFS_SB_VERSION_EXTFLGBIT | \ |
52 | XFS_SB_VERSION_DIRV2BIT) | |
dfc130f3 | 53 | #define XFS_SB_VERSION_OKREALFBITS \ |
2bd0ea18 NS |
54 | (XFS_SB_VERSION_ATTRBIT | \ |
55 | XFS_SB_VERSION_NLINKBIT | \ | |
56 | XFS_SB_VERSION_QUOTABIT | \ | |
57 | XFS_SB_VERSION_ALIGNBIT | \ | |
58 | XFS_SB_VERSION_DALIGNBIT | \ | |
73bf5988 | 59 | XFS_SB_VERSION_SHAREDBIT | \ |
9440d84d | 60 | XFS_SB_VERSION_LOGV2BIT | \ |
46eca962 NS |
61 | XFS_SB_VERSION_SECTORBIT | \ |
62 | XFS_SB_VERSION_MOREBITSBIT) | |
dfc130f3 | 63 | #define XFS_SB_VERSION_OKSASHBITS \ |
2bd0ea18 NS |
64 | (XFS_SB_VERSION_NUMBITS | \ |
65 | XFS_SB_VERSION_REALFBITS | \ | |
66 | XFS_SB_VERSION_OKSASHFBITS) | |
dfc130f3 | 67 | #define XFS_SB_VERSION_OKREALBITS \ |
2bd0ea18 NS |
68 | (XFS_SB_VERSION_NUMBITS | \ |
69 | XFS_SB_VERSION_OKREALFBITS | \ | |
70 | XFS_SB_VERSION_OKSASHFBITS) | |
465e76a9 GO |
71 | #define XFS_SB_VERSION_MKFS(ia,dia,extflag,dirv2,na,sflag,morebits) \ |
72 | (((ia) || (dia) || (extflag) || (dirv2) || (na) || (sflag) || \ | |
73 | (morebits)) ? \ | |
2bd0ea18 NS |
74 | (XFS_SB_VERSION_4 | \ |
75 | ((ia) ? XFS_SB_VERSION_ALIGNBIT : 0) | \ | |
76 | ((dia) ? XFS_SB_VERSION_DALIGNBIT : 0) | \ | |
77 | ((extflag) ? XFS_SB_VERSION_EXTFLGBIT : 0) | \ | |
73bf5988 | 78 | ((dirv2) ? XFS_SB_VERSION_DIRV2BIT : 0) | \ |
9440d84d | 79 | ((na) ? XFS_SB_VERSION_LOGV2BIT : 0) | \ |
465e76a9 GO |
80 | ((sflag) ? XFS_SB_VERSION_SECTORBIT : 0) | \ |
81 | ((morebits) ? XFS_SB_VERSION_MOREBITSBIT : 0)) : \ | |
2bd0ea18 NS |
82 | XFS_SB_VERSION_1) |
83 | ||
465e76a9 GO |
84 | /* |
85 | * There are two words to hold XFS "feature" bits: the original | |
86 | * word, sb_versionnum, and sb_features2. Whenever a bit is set in | |
87 | * sb_features2, the feature bit XFS_SB_VERSION_MOREBITSBIT must be set. | |
88 | * | |
89 | * These defines represent bits in sb_features2. | |
90 | */ | |
91 | #define XFS_SB_VERSION2_REALFBITS 0x00ffffff /* Mask: features */ | |
92 | #define XFS_SB_VERSION2_RESERVED1BIT 0x00000001 | |
ca86e759 NS |
93 | #define XFS_SB_VERSION2_RESERVED2BIT 0x00000002 |
94 | #define XFS_SB_VERSION2_RESERVED4BIT 0x00000004 | |
95 | #define XFS_SB_VERSION2_ATTR2BIT 0x00000008 /* Inline attr rework */ | |
465e76a9 GO |
96 | #define XFS_SB_VERSION2_SASHFBITS 0xff000000 /* Mask: features that |
97 | require changing | |
98 | PROM and SASH */ | |
99 | ||
100 | #define XFS_SB_VERSION2_OKREALFBITS \ | |
ca86e759 | 101 | (XFS_SB_VERSION2_ATTR2BIT) |
465e76a9 GO |
102 | #define XFS_SB_VERSION2_OKSASHFBITS \ |
103 | (0) | |
104 | #define XFS_SB_VERSION2_OKREALBITS \ | |
105 | (XFS_SB_VERSION2_OKREALFBITS | \ | |
106 | XFS_SB_VERSION2_OKSASHFBITS ) | |
107 | ||
108 | /* | |
109 | * mkfs macro to set up sb_features2 word | |
110 | */ | |
5012120b | 111 | #define XFS_SB_VERSION2_MKFS(resvd1, sbcntr) 0 |
465e76a9 | 112 | |
2bd0ea18 NS |
113 | typedef struct xfs_sb |
114 | { | |
115 | __uint32_t sb_magicnum; /* magic number == XFS_SB_MAGIC */ | |
116 | __uint32_t sb_blocksize; /* logical block size, bytes */ | |
117 | xfs_drfsbno_t sb_dblocks; /* number of data blocks */ | |
118 | xfs_drfsbno_t sb_rblocks; /* number of realtime blocks */ | |
119 | xfs_drtbno_t sb_rextents; /* number of realtime extents */ | |
120 | uuid_t sb_uuid; /* file system unique id */ | |
121 | xfs_dfsbno_t sb_logstart; /* starting block of log if internal */ | |
122 | xfs_ino_t sb_rootino; /* root inode number */ | |
123 | xfs_ino_t sb_rbmino; /* bitmap inode for realtime extents */ | |
124 | xfs_ino_t sb_rsumino; /* summary inode for rt bitmap */ | |
125 | xfs_agblock_t sb_rextsize; /* realtime extent size, blocks */ | |
126 | xfs_agblock_t sb_agblocks; /* size of an allocation group */ | |
127 | xfs_agnumber_t sb_agcount; /* number of allocation groups */ | |
128 | xfs_extlen_t sb_rbmblocks; /* number of rt bitmap blocks */ | |
129 | xfs_extlen_t sb_logblocks; /* number of log blocks */ | |
130 | __uint16_t sb_versionnum; /* header version == XFS_SB_VERSION */ | |
131 | __uint16_t sb_sectsize; /* volume sector size, bytes */ | |
132 | __uint16_t sb_inodesize; /* inode size, bytes */ | |
133 | __uint16_t sb_inopblock; /* inodes per block */ | |
134 | char sb_fname[12]; /* file system name */ | |
135 | __uint8_t sb_blocklog; /* log2 of sb_blocksize */ | |
136 | __uint8_t sb_sectlog; /* log2 of sb_sectsize */ | |
137 | __uint8_t sb_inodelog; /* log2 of sb_inodesize */ | |
138 | __uint8_t sb_inopblog; /* log2 of sb_inopblock */ | |
139 | __uint8_t sb_agblklog; /* log2 of sb_agblocks (rounded up) */ | |
140 | __uint8_t sb_rextslog; /* log2 of sb_rextents */ | |
141 | __uint8_t sb_inprogress; /* mkfs is in progress, don't mount */ | |
142 | __uint8_t sb_imax_pct; /* max % of fs for inode space */ | |
143 | /* statistics */ | |
144 | /* | |
dfc130f3 | 145 | * These fields must remain contiguous. If you really |
2bd0ea18 NS |
146 | * want to change their layout, make sure you fix the |
147 | * code in xfs_trans_apply_sb_deltas(). | |
148 | */ | |
149 | __uint64_t sb_icount; /* allocated inodes */ | |
150 | __uint64_t sb_ifree; /* free inodes */ | |
151 | __uint64_t sb_fdblocks; /* free data blocks */ | |
152 | __uint64_t sb_frextents; /* free realtime extents */ | |
153 | /* | |
154 | * End contiguous fields. | |
155 | */ | |
156 | xfs_ino_t sb_uquotino; /* user quota inode */ | |
b36eef04 | 157 | xfs_ino_t sb_gquotino; /* group quota inode */ |
2bd0ea18 NS |
158 | __uint16_t sb_qflags; /* quota flags */ |
159 | __uint8_t sb_flags; /* misc. flags */ | |
160 | __uint8_t sb_shared_vn; /* shared version number */ | |
161 | xfs_extlen_t sb_inoalignmt; /* inode chunk alignment, fsblocks */ | |
162 | __uint32_t sb_unit; /* stripe or raid unit */ | |
5000d01d | 163 | __uint32_t sb_width; /* stripe or raid width */ |
2bd0ea18 | 164 | __uint8_t sb_dirblklog; /* log2 of dir block size (fsbs) */ |
9440d84d NS |
165 | __uint8_t sb_logsectlog; /* log2 of the log sector size */ |
166 | __uint16_t sb_logsectsize; /* sector size for the log, bytes */ | |
73bf5988 | 167 | __uint32_t sb_logsunit; /* stripe unit size for the log */ |
ca86e759 | 168 | __uint32_t sb_features2; /* additional feature bits */ |
2bd0ea18 NS |
169 | } xfs_sb_t; |
170 | ||
171 | /* | |
172 | * Sequence number values for the fields. | |
173 | */ | |
174 | typedef enum { | |
175 | XFS_SBS_MAGICNUM, XFS_SBS_BLOCKSIZE, XFS_SBS_DBLOCKS, XFS_SBS_RBLOCKS, | |
176 | XFS_SBS_REXTENTS, XFS_SBS_UUID, XFS_SBS_LOGSTART, XFS_SBS_ROOTINO, | |
177 | XFS_SBS_RBMINO, XFS_SBS_RSUMINO, XFS_SBS_REXTSIZE, XFS_SBS_AGBLOCKS, | |
178 | XFS_SBS_AGCOUNT, XFS_SBS_RBMBLOCKS, XFS_SBS_LOGBLOCKS, | |
179 | XFS_SBS_VERSIONNUM, XFS_SBS_SECTSIZE, XFS_SBS_INODESIZE, | |
180 | XFS_SBS_INOPBLOCK, XFS_SBS_FNAME, XFS_SBS_BLOCKLOG, | |
181 | XFS_SBS_SECTLOG, XFS_SBS_INODELOG, XFS_SBS_INOPBLOG, XFS_SBS_AGBLKLOG, | |
182 | XFS_SBS_REXTSLOG, XFS_SBS_INPROGRESS, XFS_SBS_IMAX_PCT, XFS_SBS_ICOUNT, | |
183 | XFS_SBS_IFREE, XFS_SBS_FDBLOCKS, XFS_SBS_FREXTENTS, XFS_SBS_UQUOTINO, | |
b36eef04 | 184 | XFS_SBS_GQUOTINO, XFS_SBS_QFLAGS, XFS_SBS_FLAGS, XFS_SBS_SHARED_VN, |
2bd0ea18 | 185 | XFS_SBS_INOALIGNMT, XFS_SBS_UNIT, XFS_SBS_WIDTH, XFS_SBS_DIRBLKLOG, |
9440d84d | 186 | XFS_SBS_LOGSECTLOG, XFS_SBS_LOGSECTSIZE, XFS_SBS_LOGSUNIT, |
465e76a9 | 187 | XFS_SBS_FEATURES2, |
2bd0ea18 NS |
188 | XFS_SBS_FIELDCOUNT |
189 | } xfs_sb_field_t; | |
190 | ||
191 | /* | |
192 | * Mask values, defined based on the xfs_sb_field_t values. | |
193 | * Only define the ones we're using. | |
194 | */ | |
dfc130f3 RC |
195 | #define XFS_SB_MVAL(x) (1LL << XFS_SBS_ ## x) |
196 | #define XFS_SB_UUID XFS_SB_MVAL(UUID) | |
197 | #define XFS_SB_FNAME XFS_SB_MVAL(FNAME) | |
198 | #define XFS_SB_ROOTINO XFS_SB_MVAL(ROOTINO) | |
199 | #define XFS_SB_RBMINO XFS_SB_MVAL(RBMINO) | |
200 | #define XFS_SB_RSUMINO XFS_SB_MVAL(RSUMINO) | |
201 | #define XFS_SB_VERSIONNUM XFS_SB_MVAL(VERSIONNUM) | |
2bd0ea18 | 202 | #define XFS_SB_UQUOTINO XFS_SB_MVAL(UQUOTINO) |
b36eef04 | 203 | #define XFS_SB_GQUOTINO XFS_SB_MVAL(GQUOTINO) |
2bd0ea18 NS |
204 | #define XFS_SB_QFLAGS XFS_SB_MVAL(QFLAGS) |
205 | #define XFS_SB_SHARED_VN XFS_SB_MVAL(SHARED_VN) | |
206 | #define XFS_SB_UNIT XFS_SB_MVAL(UNIT) | |
207 | #define XFS_SB_WIDTH XFS_SB_MVAL(WIDTH) | |
ca86e759 | 208 | #define XFS_SB_FEATURES2 XFS_SB_MVAL(FEATURES2) |
dfc130f3 RC |
209 | #define XFS_SB_NUM_BITS ((int)XFS_SBS_FIELDCOUNT) |
210 | #define XFS_SB_ALL_BITS ((1LL << XFS_SB_NUM_BITS) - 1) | |
211 | #define XFS_SB_MOD_BITS \ | |
2bd0ea18 | 212 | (XFS_SB_UUID | XFS_SB_ROOTINO | XFS_SB_RBMINO | XFS_SB_RSUMINO | \ |
b36eef04 | 213 | XFS_SB_VERSIONNUM | XFS_SB_UQUOTINO | XFS_SB_GQUOTINO | \ |
ca86e759 NS |
214 | XFS_SB_QFLAGS | XFS_SB_SHARED_VN | XFS_SB_UNIT | XFS_SB_WIDTH | \ |
215 | XFS_SB_FEATURES2) | |
216 | ||
2bd0ea18 NS |
217 | |
218 | /* | |
219 | * Misc. Flags - warning - these will be cleared by xfs_repair unless | |
220 | * a feature bit is set when the flag is used. | |
221 | */ | |
222 | #define XFS_SBF_NOFLAGS 0x00 /* no flags set */ | |
223 | #define XFS_SBF_READONLY 0x01 /* only read-only mounts allowed */ | |
224 | ||
225 | /* | |
226 | * define max. shared version we can interoperate with | |
227 | */ | |
228 | #define XFS_SB_MAX_SHARED_VN 0 | |
229 | ||
dfc130f3 | 230 | #define XFS_SB_VERSION_NUM(sbp) ((sbp)->sb_versionnum & XFS_SB_VERSION_NUMBITS) |
2bd0ea18 | 231 | |
dfc130f3 | 232 | #define XFS_SB_GOOD_VERSION(sbp) xfs_sb_good_version(sbp) |
2bd0ea18 | 233 | #ifdef __KERNEL__ |
f302e9e4 NS |
234 | static inline int xfs_sb_good_version(xfs_sb_t *sbp) |
235 | { | |
236 | return (((sbp->sb_versionnum >= XFS_SB_VERSION_1) && \ | |
237 | (sbp->sb_versionnum <= XFS_SB_VERSION_3)) || \ | |
238 | ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
239 | !((sbp->sb_versionnum & ~XFS_SB_VERSION_OKREALBITS) || \ | |
240 | ((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) && \ | |
241 | (sbp->sb_features2 & ~XFS_SB_VERSION2_OKREALBITS))) && \ | |
242 | (sbp->sb_shared_vn <= XFS_SB_MAX_SHARED_VN))); | |
243 | } | |
244 | #else | |
245 | static inline int xfs_sb_good_version(xfs_sb_t *sbp) | |
246 | { | |
247 | return (((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_OKREALBITS) || \ | |
251 | ((sbp->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT) && \ | |
252 | (sbp->sb_features2 & ~XFS_SB_VERSION2_OKREALBITS))) && \ | |
253 | (!(sbp->sb_versionnum & XFS_SB_VERSION_SHAREDBIT) || \ | |
254 | (sbp->sb_shared_vn <= XFS_SB_MAX_SHARED_VN)))); | |
255 | } | |
2bd0ea18 | 256 | #endif /* __KERNEL__ */ |
2bd0ea18 | 257 | |
dfc130f3 | 258 | #define XFS_SB_GOOD_SASH_VERSION(sbp) \ |
2bd0ea18 NS |
259 | ((((sbp)->sb_versionnum >= XFS_SB_VERSION_1) && \ |
260 | ((sbp)->sb_versionnum <= XFS_SB_VERSION_3)) || \ | |
261 | ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
262 | !((sbp)->sb_versionnum & ~XFS_SB_VERSION_OKSASHBITS))) | |
263 | ||
dfc130f3 | 264 | #define XFS_SB_VERSION_TONEW(v) xfs_sb_version_tonew(v) |
f302e9e4 NS |
265 | static inline unsigned xfs_sb_version_tonew(unsigned v) |
266 | { | |
267 | return ((((v) == XFS_SB_VERSION_1) ? \ | |
2bd0ea18 NS |
268 | 0 : \ |
269 | (((v) == XFS_SB_VERSION_2) ? \ | |
270 | XFS_SB_VERSION_ATTRBIT : \ | |
271 | (XFS_SB_VERSION_ATTRBIT | XFS_SB_VERSION_NLINKBIT))) | \ | |
f302e9e4 NS |
272 | XFS_SB_VERSION_4); |
273 | } | |
2bd0ea18 | 274 | |
dfc130f3 | 275 | #define XFS_SB_VERSION_TOOLD(v) xfs_sb_version_toold(v) |
f302e9e4 NS |
276 | static inline unsigned xfs_sb_version_toold(unsigned v) |
277 | { | |
278 | return (((v) & (XFS_SB_VERSION_QUOTABIT | XFS_SB_VERSION_ALIGNBIT)) ? \ | |
2bd0ea18 NS |
279 | 0 : \ |
280 | (((v) & XFS_SB_VERSION_NLINKBIT) ? \ | |
281 | XFS_SB_VERSION_3 : \ | |
282 | (((v) & XFS_SB_VERSION_ATTRBIT) ? \ | |
283 | XFS_SB_VERSION_2 : \ | |
f302e9e4 NS |
284 | XFS_SB_VERSION_1))); |
285 | } | |
2bd0ea18 | 286 | |
dfc130f3 | 287 | #define XFS_SB_VERSION_HASATTR(sbp) xfs_sb_version_hasattr(sbp) |
f302e9e4 NS |
288 | static inline int xfs_sb_version_hasattr(xfs_sb_t *sbp) |
289 | { | |
290 | return ((sbp)->sb_versionnum == XFS_SB_VERSION_2) || \ | |
291 | ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \ | |
292 | ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
293 | ((sbp)->sb_versionnum & XFS_SB_VERSION_ATTRBIT)); | |
294 | } | |
2bd0ea18 | 295 | |
dfc130f3 | 296 | #define XFS_SB_VERSION_ADDATTR(sbp) xfs_sb_version_addattr(sbp) |
f302e9e4 NS |
297 | static inline void xfs_sb_version_addattr(xfs_sb_t *sbp) |
298 | { | |
299 | (sbp)->sb_versionnum = (((sbp)->sb_versionnum == XFS_SB_VERSION_1) ? \ | |
2bd0ea18 NS |
300 | XFS_SB_VERSION_2 : \ |
301 | ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) ? \ | |
302 | ((sbp)->sb_versionnum | XFS_SB_VERSION_ATTRBIT) : \ | |
f302e9e4 NS |
303 | (XFS_SB_VERSION_4 | XFS_SB_VERSION_ATTRBIT))); |
304 | } | |
2bd0ea18 | 305 | |
dfc130f3 | 306 | #define XFS_SB_VERSION_HASNLINK(sbp) xfs_sb_version_hasnlink(sbp) |
f302e9e4 NS |
307 | static inline int xfs_sb_version_hasnlink(xfs_sb_t *sbp) |
308 | { | |
309 | return ((sbp)->sb_versionnum == XFS_SB_VERSION_3) || \ | |
310 | ((XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
311 | ((sbp)->sb_versionnum & XFS_SB_VERSION_NLINKBIT)); | |
312 | } | |
2bd0ea18 | 313 | |
dfc130f3 | 314 | #define XFS_SB_VERSION_ADDNLINK(sbp) xfs_sb_version_addnlink(sbp) |
f302e9e4 NS |
315 | static inline void xfs_sb_version_addnlink(xfs_sb_t *sbp) |
316 | { | |
317 | (sbp)->sb_versionnum = ((sbp)->sb_versionnum <= XFS_SB_VERSION_2 ? \ | |
2bd0ea18 | 318 | XFS_SB_VERSION_3 : \ |
f302e9e4 NS |
319 | ((sbp)->sb_versionnum | XFS_SB_VERSION_NLINKBIT)); |
320 | } | |
2bd0ea18 | 321 | |
dfc130f3 | 322 | #define XFS_SB_VERSION_HASQUOTA(sbp) xfs_sb_version_hasquota(sbp) |
f302e9e4 NS |
323 | static inline int xfs_sb_version_hasquota(xfs_sb_t *sbp) |
324 | { | |
325 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
326 | ((sbp)->sb_versionnum & XFS_SB_VERSION_QUOTABIT); | |
327 | } | |
2bd0ea18 | 328 | |
dfc130f3 | 329 | #define XFS_SB_VERSION_ADDQUOTA(sbp) xfs_sb_version_addquota(sbp) |
f302e9e4 NS |
330 | static inline void xfs_sb_version_addquota(xfs_sb_t *sbp) |
331 | { | |
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 | } | |
338 | ||
dfc130f3 | 339 | #define XFS_SB_VERSION_HASALIGN(sbp) xfs_sb_version_hasalign(sbp) |
f302e9e4 NS |
340 | static inline int xfs_sb_version_hasalign(xfs_sb_t *sbp) |
341 | { | |
342 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
343 | ((sbp)->sb_versionnum & XFS_SB_VERSION_ALIGNBIT); | |
344 | } | |
2bd0ea18 | 345 | |
dfc130f3 | 346 | #define XFS_SB_VERSION_SUBALIGN(sbp) xfs_sb_version_subalign(sbp) |
f302e9e4 NS |
347 | static inline void xfs_sb_version_subalign(xfs_sb_t *sbp) |
348 | { | |
349 | (sbp)->sb_versionnum = \ | |
350 | XFS_SB_VERSION_TOOLD((sbp)->sb_versionnum & ~XFS_SB_VERSION_ALIGNBIT); | |
351 | } | |
2bd0ea18 | 352 | |
2bd0ea18 | 353 | #define XFS_SB_VERSION_HASDALIGN(sbp) xfs_sb_version_hasdalign(sbp) |
f302e9e4 NS |
354 | static inline int xfs_sb_version_hasdalign(xfs_sb_t *sbp) |
355 | { | |
356 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
357 | ((sbp)->sb_versionnum & XFS_SB_VERSION_DALIGNBIT); | |
358 | } | |
2bd0ea18 | 359 | |
2bd0ea18 | 360 | #define XFS_SB_VERSION_ADDDALIGN(sbp) xfs_sb_version_adddalign(sbp) |
f302e9e4 NS |
361 | static inline int xfs_sb_version_adddalign(xfs_sb_t *sbp) |
362 | { | |
363 | return (sbp)->sb_versionnum = \ | |
364 | ((sbp)->sb_versionnum | XFS_SB_VERSION_DALIGNBIT); | |
365 | } | |
2bd0ea18 | 366 | |
2bd0ea18 | 367 | #define XFS_SB_VERSION_HASSHARED(sbp) xfs_sb_version_hasshared(sbp) |
f302e9e4 NS |
368 | static inline int xfs_sb_version_hasshared(xfs_sb_t *sbp) |
369 | { | |
370 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
371 | ((sbp)->sb_versionnum & XFS_SB_VERSION_SHAREDBIT); | |
372 | } | |
2bd0ea18 | 373 | |
2bd0ea18 | 374 | #define XFS_SB_VERSION_ADDSHARED(sbp) xfs_sb_version_addshared(sbp) |
f302e9e4 NS |
375 | static inline int xfs_sb_version_addshared(xfs_sb_t *sbp) |
376 | { | |
377 | return (sbp)->sb_versionnum = \ | |
378 | ((sbp)->sb_versionnum | XFS_SB_VERSION_SHAREDBIT); | |
379 | } | |
2bd0ea18 | 380 | |
2bd0ea18 | 381 | #define XFS_SB_VERSION_SUBSHARED(sbp) xfs_sb_version_subshared(sbp) |
f302e9e4 NS |
382 | static inline int xfs_sb_version_subshared(xfs_sb_t *sbp) |
383 | { | |
384 | return (sbp)->sb_versionnum = \ | |
385 | ((sbp)->sb_versionnum & ~XFS_SB_VERSION_SHAREDBIT); | |
386 | } | |
2bd0ea18 | 387 | |
2bd0ea18 | 388 | #define XFS_SB_VERSION_HASDIRV2(sbp) xfs_sb_version_hasdirv2(sbp) |
f302e9e4 NS |
389 | static inline int xfs_sb_version_hasdirv2(xfs_sb_t *sbp) |
390 | { | |
391 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
392 | ((sbp)->sb_versionnum & XFS_SB_VERSION_DIRV2BIT); | |
393 | } | |
2bd0ea18 | 394 | |
73bf5988 | 395 | #define XFS_SB_VERSION_HASLOGV2(sbp) xfs_sb_version_haslogv2(sbp) |
f302e9e4 NS |
396 | static inline int xfs_sb_version_haslogv2(xfs_sb_t *sbp) |
397 | { | |
398 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
399 | ((sbp)->sb_versionnum & XFS_SB_VERSION_LOGV2BIT); | |
400 | } | |
73bf5988 | 401 | |
2bd0ea18 | 402 | #define XFS_SB_VERSION_HASEXTFLGBIT(sbp) xfs_sb_version_hasextflgbit(sbp) |
f302e9e4 NS |
403 | static inline int xfs_sb_version_hasextflgbit(xfs_sb_t *sbp) |
404 | { | |
405 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
406 | ((sbp)->sb_versionnum & XFS_SB_VERSION_EXTFLGBIT); | |
407 | } | |
2bd0ea18 | 408 | |
2bd0ea18 | 409 | #define XFS_SB_VERSION_ADDEXTFLGBIT(sbp) xfs_sb_version_addextflgbit(sbp) |
f302e9e4 NS |
410 | static inline int xfs_sb_version_addextflgbit(xfs_sb_t *sbp) |
411 | { | |
412 | return (sbp)->sb_versionnum = \ | |
413 | ((sbp)->sb_versionnum | XFS_SB_VERSION_EXTFLGBIT); | |
414 | } | |
2bd0ea18 | 415 | |
2bd0ea18 | 416 | #define XFS_SB_VERSION_SUBEXTFLGBIT(sbp) xfs_sb_version_subextflgbit(sbp) |
f302e9e4 NS |
417 | static inline int xfs_sb_version_subextflgbit(xfs_sb_t *sbp) |
418 | { | |
419 | return (sbp)->sb_versionnum = \ | |
420 | ((sbp)->sb_versionnum & ~XFS_SB_VERSION_EXTFLGBIT); | |
421 | } | |
2bd0ea18 | 422 | |
9440d84d | 423 | #define XFS_SB_VERSION_HASSECTOR(sbp) xfs_sb_version_hassector(sbp) |
f302e9e4 NS |
424 | static inline int xfs_sb_version_hassector(xfs_sb_t *sbp) |
425 | { | |
426 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
427 | ((sbp)->sb_versionnum & XFS_SB_VERSION_SECTORBIT); | |
428 | } | |
9440d84d | 429 | |
465e76a9 | 430 | #define XFS_SB_VERSION_HASMOREBITS(sbp) xfs_sb_version_hasmorebits(sbp) |
f302e9e4 NS |
431 | static inline int xfs_sb_version_hasmorebits(xfs_sb_t *sbp) |
432 | { | |
433 | return (XFS_SB_VERSION_NUM(sbp) == XFS_SB_VERSION_4) && \ | |
434 | ((sbp)->sb_versionnum & XFS_SB_VERSION_MOREBITSBIT); | |
435 | } | |
465e76a9 GO |
436 | |
437 | /* | |
438 | * sb_features2 bit version macros. | |
439 | * | |
5012120b | 440 | * For example, for a bit defined as XFS_SB_VERSION2_FUNBIT, has a macro: |
465e76a9 | 441 | * |
46eca962 | 442 | * SB_VERSION_HASFUNBIT(xfs_sb_t *sbp) |
465e76a9 | 443 | * ((XFS_SB_VERSION_HASMOREBITS(sbp) && |
46eca962 | 444 | * ((sbp)->sb_features2 & XFS_SB_VERSION2_FUNBIT) |
465e76a9 | 445 | */ |
f302e9e4 | 446 | |
ca86e759 | 447 | #define XFS_SB_VERSION_HASATTR2(sbp) xfs_sb_version_hasattr2(sbp) |
f302e9e4 NS |
448 | static inline int xfs_sb_version_hasattr2(xfs_sb_t *sbp) |
449 | { | |
450 | return (XFS_SB_VERSION_HASMOREBITS(sbp)) && \ | |
451 | ((sbp)->sb_features2 & XFS_SB_VERSION2_ATTR2BIT); | |
452 | } | |
ca86e759 | 453 | |
ca86e759 | 454 | #define XFS_SB_VERSION_ADDATTR2(sbp) xfs_sb_version_addattr2(sbp) |
f302e9e4 NS |
455 | static inline void xfs_sb_version_addattr2(xfs_sb_t *sbp) |
456 | { | |
ca86e759 NS |
457 | ((sbp)->sb_versionnum = \ |
458 | ((sbp)->sb_versionnum | XFS_SB_VERSION_MOREBITSBIT), \ | |
459 | ((sbp)->sb_features2 = \ | |
f302e9e4 NS |
460 | ((sbp)->sb_features2 | XFS_SB_VERSION2_ATTR2BIT))); |
461 | } | |
462 | ||
2bd0ea18 NS |
463 | /* |
464 | * end of superblock version macros | |
465 | */ | |
466 | ||
f302e9e4 | 467 | #define XFS_SB_DADDR ((xfs_daddr_t)0) /* daddr in filesystem/ag */ |
dfc130f3 | 468 | #define XFS_SB_BLOCK(mp) XFS_HDR_BLOCK(mp, XFS_SB_DADDR) |
9440d84d | 469 | #define XFS_BUF_TO_SBP(bp) ((xfs_sb_t *)XFS_BUF_PTR(bp)) |
f302e9e4 NS |
470 | |
471 | #define XFS_HDR_BLOCK(mp,d) ((xfs_agblock_t)XFS_BB_TO_FSBT(mp,d)) | |
472 | #define XFS_DADDR_TO_FSB(mp,d) XFS_AGB_TO_FSB(mp, \ | |
473 | XFS_DADDR_TO_AGNO(mp,d), XFS_DADDR_TO_AGBNO(mp,d)) | |
474 | #define XFS_FSB_TO_DADDR(mp,fsbno) XFS_AGB_TO_DADDR(mp, \ | |
475 | XFS_FSB_TO_AGNO(mp,fsbno), XFS_FSB_TO_AGBNO(mp,fsbno)) | |
9440d84d NS |
476 | |
477 | /* | |
478 | * File system sector to basic block conversions. | |
479 | */ | |
480 | #define XFS_FSS_TO_BB(mp,sec) ((sec) << (mp)->m_sectbb_log) | |
481 | #define XFS_BB_TO_FSS(mp,bb) \ | |
482 | (((bb) + (XFS_FSS_TO_BB(mp,1) - 1)) >> (mp)->m_sectbb_log) | |
483 | #define XFS_BB_TO_FSST(mp,bb) ((bb) >> (mp)->m_sectbb_log) | |
484 | ||
485 | /* | |
486 | * File system sector to byte conversions. | |
487 | */ | |
488 | #define XFS_FSS_TO_B(mp,sectno) ((xfs_fsize_t)(sectno) << (mp)->m_sb.sb_sectlog) | |
489 | #define XFS_B_TO_FSST(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_sectlog) | |
490 | ||
2bd0ea18 NS |
491 | /* |
492 | * File system block to basic block conversions. | |
493 | */ | |
dfc130f3 RC |
494 | #define XFS_FSB_TO_BB(mp,fsbno) ((fsbno) << (mp)->m_blkbb_log) |
495 | #define XFS_BB_TO_FSB(mp,bb) \ | |
2bd0ea18 | 496 | (((bb) + (XFS_FSB_TO_BB(mp,1) - 1)) >> (mp)->m_blkbb_log) |
dfc130f3 RC |
497 | #define XFS_BB_TO_FSBT(mp,bb) ((bb) >> (mp)->m_blkbb_log) |
498 | #define XFS_BB_FSB_OFFSET(mp,bb) ((bb) & ((mp)->m_bsize - 1)) | |
2bd0ea18 NS |
499 | |
500 | /* | |
501 | * File system block to byte conversions. | |
502 | */ | |
9440d84d | 503 | #define XFS_FSB_TO_B(mp,fsbno) ((xfs_fsize_t)(fsbno) << (mp)->m_sb.sb_blocklog) |
5000d01d | 504 | #define XFS_B_TO_FSB(mp,b) \ |
2bd0ea18 | 505 | ((((__uint64_t)(b)) + (mp)->m_blockmask) >> (mp)->m_sb.sb_blocklog) |
5000d01d SL |
506 | #define XFS_B_TO_FSBT(mp,b) (((__uint64_t)(b)) >> (mp)->m_sb.sb_blocklog) |
507 | #define XFS_B_FSB_OFFSET(mp,b) ((b) & (mp)->m_blockmask) | |
2bd0ea18 | 508 | |
2bd0ea18 | 509 | #endif /* __XFS_SB_H__ */ |