]>
Commit | Line | Data |
---|---|---|
82d9eba6 NB |
1 | /* |
2 | * mdadm - manage Linux "md" devices aka RAID arrays. | |
3 | * | |
e736b623 | 4 | * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de> |
82d9eba6 NB |
5 | * |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | * Author: Neil Brown | |
e736b623 | 22 | * Email: <neilb@suse.de> |
82d9eba6 NB |
23 | */ |
24 | ||
25 | #include "mdadm.h" | |
82d9eba6 NB |
26 | /* |
27 | * The version-1 superblock : | |
28 | * All numeric fields are little-endian. | |
29 | * | |
30 | * total size: 256 bytes plus 2 per device. | |
31 | * 1K allows 384 devices. | |
32 | */ | |
33 | struct mdp_superblock_1 { | |
34 | /* constant array information - 128 bytes */ | |
35 | __u32 magic; /* MD_SB_MAGIC: 0xa92b4efc - little endian */ | |
36 | __u32 major_version; /* 1 */ | |
37 | __u32 feature_map; /* 0 for now */ | |
38 | __u32 pad0; /* always set to 0 when writing */ | |
39 | ||
40 | __u8 set_uuid[16]; /* user-space generated. */ | |
41 | char set_name[32]; /* set and interpreted by user-space */ | |
42 | ||
43 | __u64 ctime; /* lo 40 bits are seconds, top 24 are microseconds or 0*/ | |
44 | __u32 level; /* -4 (multipath), -1 (linear), 0,1,4,5 */ | |
45 | __u32 layout; /* only for raid5 currently */ | |
46 | __u64 size; /* used size of component devices, in 512byte sectors */ | |
47 | ||
48 | __u32 chunksize; /* in 512byte sectors */ | |
49 | __u32 raid_disks; | |
34163fc7 NB |
50 | __u32 bitmap_offset; /* sectors after start of superblock that bitmap starts |
51 | * NOTE: signed, so bitmap can be before superblock | |
52 | * only meaningful of feature_map[0] is set. | |
53 | */ | |
b674b5b8 NB |
54 | |
55 | /* These are only valid with feature bit '4' */ | |
b674b5b8 | 56 | __u32 new_level; /* new level we are reshaping to */ |
ac957baa | 57 | __u64 reshape_position; /* next address in array-space for reshape */ |
b674b5b8 NB |
58 | __u32 delta_disks; /* change in number of raid_disks */ |
59 | __u32 new_layout; /* new layout */ | |
60 | __u32 new_chunk; /* new chunk size (bytes) */ | |
61 | __u8 pad1[128-124]; /* set to 0 when written */ | |
82d9eba6 NB |
62 | |
63 | /* constant this-device information - 64 bytes */ | |
64 | __u64 data_offset; /* sector start of data, often 0 */ | |
65 | __u64 data_size; /* sectors in this device that can be used for data */ | |
66 | __u64 super_offset; /* sector start of this superblock */ | |
67 | __u64 recovery_offset;/* sectors before this offset (from data_offset) have been recovered */ | |
68 | __u32 dev_number; /* permanent identifier of this device - not role in raid */ | |
69 | __u32 cnt_corrected_read; /* number of read errors that were corrected by re-writing */ | |
70 | __u8 device_uuid[16]; /* user-space setable, ignored by kernel */ | |
dfd4d8ee NB |
71 | __u8 devflags; /* per-device flags. Only one defined...*/ |
72 | #define WriteMostly1 1 /* mask for writemostly flag in above */ | |
73 | __u8 pad2[64-57]; /* set to 0 when writing */ | |
82d9eba6 NB |
74 | |
75 | /* array state information - 64 bytes */ | |
76 | __u64 utime; /* 40 bits second, 24 btes microseconds */ | |
77 | __u64 events; /* incremented when superblock updated */ | |
78 | __u64 resync_offset; /* data before this offset (from data_offset) known to be in sync */ | |
4180aa4d N |
79 | __u32 sb_csum; /* checksum upto dev_roles[max_dev] */ |
80 | __u32 max_dev; /* size of dev_roles[] array to consider */ | |
82d9eba6 NB |
81 | __u8 pad3[64-32]; /* set to 0 when writing */ |
82 | ||
83 | /* device state information. Indexed by dev_number. | |
84 | * 2 bytes per device | |
85 | * Note there are no per-device state flags. State information is rolled | |
86 | * into the 'roles' value. If a device is spare or faulty, then it doesn't | |
87 | * have a meaningful role. | |
88 | */ | |
89 | __u16 dev_roles[0]; /* role in array, or 0xffff for a spare, or 0xfffe for faulty */ | |
90 | }; | |
91 | ||
911cead7 N |
92 | #define MAX_SB_SIZE 4096 |
93 | /* bitmap super size is 256, but we round up to a sector for alignment */ | |
94 | #define BM_SUPER_SIZE 512 | |
95 | #define MAX_DEVS ((int)(MAX_SB_SIZE - sizeof(struct mdp_superblock_1)) / 2) | |
41226756 JS |
96 | #define SUPER1_SIZE (MAX_SB_SIZE + BM_SUPER_SIZE \ |
97 | + sizeof(struct misc_dev_info)) | |
911cead7 | 98 | |
bee8ec56 NB |
99 | struct misc_dev_info { |
100 | __u64 device_size; | |
101 | }; | |
102 | ||
d2cd3ffc NB |
103 | /* feature_map bits */ |
104 | #define MD_FEATURE_BITMAP_OFFSET 1 | |
105 | #define MD_FEATURE_RECOVERY_OFFSET 2 /* recovery_offset is present and | |
106 | * must be honoured | |
107 | */ | |
b674b5b8 | 108 | #define MD_FEATURE_RESHAPE_ACTIVE 4 |
d2cd3ffc | 109 | |
b674b5b8 | 110 | #define MD_FEATURE_ALL (1|2|4) |
d2cd3ffc | 111 | |
570c0542 | 112 | #ifndef offsetof |
067db4df | 113 | #define offsetof(t,f) ((size_t)&(((t*)0)->f)) |
570c0542 | 114 | #endif |
82d9eba6 NB |
115 | static unsigned int calc_sb_1_csum(struct mdp_superblock_1 * sb) |
116 | { | |
117 | unsigned int disk_csum, csum; | |
118 | unsigned long long newcsum; | |
119 | int size = sizeof(*sb) + __le32_to_cpu(sb->max_dev)*2; | |
120 | unsigned int *isuper = (unsigned int*)sb; | |
82d9eba6 NB |
121 | |
122 | /* make sure I can count... */ | |
123 | if (offsetof(struct mdp_superblock_1,data_offset) != 128 || | |
124 | offsetof(struct mdp_superblock_1, utime) != 192 || | |
125 | sizeof(struct mdp_superblock_1) != 256) { | |
126 | fprintf(stderr, "WARNING - superblock isn't sized correctly\n"); | |
127 | } | |
128 | ||
129 | disk_csum = sb->sb_csum; | |
130 | sb->sb_csum = 0; | |
131 | newcsum = 0; | |
e4c72d1d | 132 | for (; size>=4; size -= 4 ) { |
722966c6 PC |
133 | newcsum += __le32_to_cpu(*isuper); |
134 | isuper++; | |
135 | } | |
82d9eba6 NB |
136 | |
137 | if (size == 2) | |
138 | newcsum += __le16_to_cpu(*(unsigned short*) isuper); | |
139 | ||
140 | csum = (newcsum & 0xffffffff) + (newcsum >> 32); | |
141 | sb->sb_csum = disk_csum; | |
83205b64 | 142 | return __cpu_to_le32(csum); |
82d9eba6 NB |
143 | } |
144 | ||
308340aa JS |
145 | /* |
146 | * Information related to file descriptor used for aligned reads/writes. | |
147 | * Cache the block size. | |
148 | */ | |
149 | struct align_fd { | |
150 | int fd; | |
151 | int blk_sz; | |
152 | }; | |
153 | ||
154 | static void init_afd(struct align_fd *afd, int fd) | |
155 | { | |
156 | afd->fd = fd; | |
157 | ||
158 | if (ioctl(afd->fd, BLKSSZGET, &afd->blk_sz) != 0) | |
159 | afd->blk_sz = 512; | |
160 | } | |
161 | ||
5ea022a1 | 162 | static char abuf[4096+4096]; |
308340aa | 163 | static int aread(struct align_fd *afd, void *buf, int len) |
5ea022a1 N |
164 | { |
165 | /* aligned read. | |
166 | * On devices with a 4K sector size, we need to read | |
167 | * the full sector and copy relevant bits into | |
168 | * the buffer | |
169 | */ | |
6ef89052 | 170 | int bsize, iosize; |
5ea022a1 N |
171 | char *b; |
172 | int n; | |
6ef89052 | 173 | |
308340aa JS |
174 | bsize = afd->blk_sz; |
175 | ||
176 | if (!bsize || bsize > 4096 || len > 4096) { | |
177 | if (!bsize) | |
178 | fprintf(stderr, "WARNING - aread() called with " | |
179 | "invalid block size\n"); | |
5ea022a1 | 180 | return -1; |
308340aa | 181 | } |
0a2f1894 | 182 | b = ROUND_UP_PTR((char *)abuf, 4096); |
5ea022a1 | 183 | |
6ef89052 N |
184 | for (iosize = 0; iosize < len; iosize += bsize) |
185 | ; | |
308340aa | 186 | n = read(afd->fd, b, iosize); |
5ea022a1 N |
187 | if (n <= 0) |
188 | return n; | |
308340aa | 189 | lseek(afd->fd, len - n, 1); |
5ea022a1 N |
190 | if (n > len) |
191 | n = len; | |
192 | memcpy(buf, b, n); | |
193 | return n; | |
194 | } | |
195 | ||
308340aa | 196 | static int awrite(struct align_fd *afd, void *buf, int len) |
5ea022a1 N |
197 | { |
198 | /* aligned write. | |
199 | * On devices with a 4K sector size, we need to write | |
200 | * the full sector. We pre-read if the sector is larger | |
201 | * than the write. | |
202 | * The address must be sector-aligned. | |
203 | */ | |
6ef89052 | 204 | int bsize, iosize; |
5ea022a1 N |
205 | char *b; |
206 | int n; | |
308340aa JS |
207 | |
208 | bsize = afd->blk_sz; | |
209 | if (!bsize || bsize > 4096 || len > 4096) { | |
210 | if (!bsize) | |
211 | fprintf(stderr, "WARNING - awrite() called with " | |
212 | "invalid block size\n"); | |
5ea022a1 | 213 | return -1; |
308340aa | 214 | } |
0a2f1894 | 215 | b = ROUND_UP_PTR((char *)abuf, 4096); |
5ea022a1 | 216 | |
6ef89052 N |
217 | for (iosize = 0; iosize < len ; iosize += bsize) |
218 | ; | |
219 | ||
220 | if (len != iosize) { | |
308340aa | 221 | n = read(afd->fd, b, iosize); |
6ef89052 N |
222 | if (n <= 0) |
223 | return n; | |
308340aa | 224 | lseek(afd->fd, -n, 1); |
6ef89052 N |
225 | } |
226 | ||
5ea022a1 | 227 | memcpy(b, buf, len); |
308340aa | 228 | n = write(afd->fd, b, iosize); |
5ea022a1 N |
229 | if (n <= 0) |
230 | return n; | |
308340aa | 231 | lseek(afd->fd, len - n, 1); |
5ea022a1 N |
232 | return len; |
233 | } | |
234 | ||
c7654afc | 235 | #ifndef MDASSEMBLE |
3da92f27 | 236 | static void examine_super1(struct supertype *st, char *homehost) |
82d9eba6 | 237 | { |
3da92f27 | 238 | struct mdp_superblock_1 *sb = st->sb; |
82d9eba6 | 239 | time_t atime; |
f21e18ca | 240 | unsigned int d; |
e8e1c176 | 241 | int role; |
4180aa4d | 242 | int delta_extra = 0; |
82d9eba6 NB |
243 | int i; |
244 | char *c; | |
a1cbd7d0 | 245 | int l = homehost ? strlen(homehost) : 0; |
83205b64 | 246 | int layout; |
a17a3de3 | 247 | unsigned long long sb_offset; |
82d9eba6 NB |
248 | |
249 | printf(" Magic : %08x\n", __le32_to_cpu(sb->magic)); | |
a17a3de3 DL |
250 | printf(" Version : 1"); |
251 | sb_offset = __le64_to_cpu(sb->super_offset); | |
252 | if (sb_offset <= 4) | |
253 | printf(".1\n"); | |
254 | else if (sb_offset <= 8) | |
255 | printf(".2\n"); | |
256 | else | |
257 | printf(".0\n"); | |
91eedefc | 258 | printf(" Feature Map : 0x%x\n", __le32_to_cpu(sb->feature_map)); |
82d9eba6 NB |
259 | printf(" Array UUID : "); |
260 | for (i=0; i<16; i++) { | |
82d9eba6 | 261 | if ((i&3)==0 && i != 0) printf(":"); |
34163fc7 | 262 | printf("%02x", sb->set_uuid[i]); |
82d9eba6 NB |
263 | } |
264 | printf("\n"); | |
a1cbd7d0 NB |
265 | printf(" Name : %.32s", sb->set_name); |
266 | if (l > 0 && l < 32 && | |
267 | sb->set_name[l] == ':' && | |
268 | strncmp(sb->set_name, homehost, l) == 0) | |
269 | printf(" (local to host %s)", homehost); | |
270 | printf("\n"); | |
82d9eba6 NB |
271 | atime = __le64_to_cpu(sb->ctime) & 0xFFFFFFFFFFULL; |
272 | printf(" Creation Time : %.24s\n", ctime(&atime)); | |
273 | c=map_num(pers, __le32_to_cpu(sb->level)); | |
274 | printf(" Raid Level : %s\n", c?c:"-unknown-"); | |
275 | printf(" Raid Devices : %d\n", __le32_to_cpu(sb->raid_disks)); | |
276 | printf("\n"); | |
5cda0964 | 277 | printf(" Avail Dev Size : %llu%s\n", |
2fb749d1 NB |
278 | (unsigned long long)__le64_to_cpu(sb->data_size), |
279 | human_size(__le64_to_cpu(sb->data_size)<<9)); | |
c43f7d91 | 280 | if (__le32_to_cpu(sb->level) > 0) { |
d4633e06 | 281 | int ddsks = 0, ddsks_denom = 1; |
b674b5b8 NB |
282 | switch(__le32_to_cpu(sb->level)) { |
283 | case 1: ddsks=1;break; | |
284 | case 4: | |
83205b64 NB |
285 | case 5: ddsks = __le32_to_cpu(sb->raid_disks)-1; break; |
286 | case 6: ddsks = __le32_to_cpu(sb->raid_disks)-2; break; | |
287 | case 10: | |
288 | layout = __le32_to_cpu(sb->layout); | |
d4633e06 N |
289 | ddsks = __le32_to_cpu(sb->raid_disks); |
290 | ddsks_denom = (layout&255) * ((layout>>8)&255); | |
b674b5b8 | 291 | } |
d4633e06 N |
292 | if (ddsks) { |
293 | long long asize = __le64_to_cpu(sb->size); | |
294 | asize = (asize << 9) * ddsks / ddsks_denom; | |
83205b64 | 295 | printf(" Array Size : %llu%s\n", |
d4633e06 N |
296 | asize >> 10, human_size(asize)); |
297 | } | |
b674b5b8 | 298 | if (sb->size != sb->data_size) |
5cda0964 | 299 | printf(" Used Dev Size : %llu%s\n", |
83205b64 NB |
300 | (unsigned long long)__le64_to_cpu(sb->size), |
301 | human_size(__le64_to_cpu(sb->size)<<9)); | |
b674b5b8 | 302 | } |
82d9eba6 | 303 | if (sb->data_offset) |
199171a2 NB |
304 | printf(" Data Offset : %llu sectors\n", |
305 | (unsigned long long)__le64_to_cpu(sb->data_offset)); | |
306 | printf(" Super Offset : %llu sectors\n", | |
307 | (unsigned long long)__le64_to_cpu(sb->super_offset)); | |
d2cd3ffc NB |
308 | if (__le32_to_cpu(sb->feature_map) & MD_FEATURE_RECOVERY_OFFSET) |
309 | printf("Recovery Offset : %llu sectors\n", (unsigned long long)__le64_to_cpu(sb->recovery_offset)); | |
a3fd117c | 310 | printf(" State : %s\n", (__le64_to_cpu(sb->resync_offset)+1)? "active":"clean"); |
82d9eba6 NB |
311 | printf(" Device UUID : "); |
312 | for (i=0; i<16; i++) { | |
82d9eba6 | 313 | if ((i&3)==0 && i != 0) printf(":"); |
34163fc7 | 314 | printf("%02x", sb->device_uuid[i]); |
82d9eba6 NB |
315 | } |
316 | printf("\n"); | |
b674b5b8 | 317 | printf("\n"); |
91eedefc NB |
318 | if (sb->feature_map & __cpu_to_le32(MD_FEATURE_BITMAP_OFFSET)) { |
319 | printf("Internal Bitmap : %ld sectors from superblock\n", | |
68754bd1 | 320 | (long)(int32_t)__le32_to_cpu(sb->bitmap_offset)); |
8fac0577 | 321 | } |
b674b5b8 | 322 | if (sb->feature_map & __le32_to_cpu(MD_FEATURE_RESHAPE_ACTIVE)) { |
1e0d770c | 323 | printf(" Reshape pos'n : %llu%s\n", (unsigned long long)__le64_to_cpu(sb->reshape_position)/2, |
b674b5b8 NB |
324 | human_size(__le64_to_cpu(sb->reshape_position)<<9)); |
325 | if (__le32_to_cpu(sb->delta_disks)) { | |
326 | printf(" Delta Devices : %d", __le32_to_cpu(sb->delta_disks)); | |
4180aa4d N |
327 | printf(" (%d->%d)\n", |
328 | __le32_to_cpu(sb->raid_disks)-__le32_to_cpu(sb->delta_disks), | |
329 | __le32_to_cpu(sb->raid_disks)); | |
330 | if ((int)__le32_to_cpu(sb->delta_disks) < 0) | |
331 | delta_extra = -__le32_to_cpu(sb->delta_disks); | |
b674b5b8 NB |
332 | } |
333 | if (__le32_to_cpu(sb->new_level) != __le32_to_cpu(sb->level)) { | |
334 | c = map_num(pers, __le32_to_cpu(sb->new_level)); | |
335 | printf(" New Level : %s\n", c?c:"-unknown-"); | |
336 | } | |
337 | if (__le32_to_cpu(sb->new_layout) != __le32_to_cpu(sb->layout)) { | |
338 | if (__le32_to_cpu(sb->level) == 5) { | |
339 | c = map_num(r5layout, __le32_to_cpu(sb->new_layout)); | |
340 | printf(" New Layout : %s\n", c?c:"-unknown-"); | |
341 | } | |
fe77a154 N |
342 | if (__le32_to_cpu(sb->level) == 6) { |
343 | c = map_num(r6layout, __le32_to_cpu(sb->new_layout)); | |
344 | printf(" New Layout : %s\n", c?c:"-unknown-"); | |
345 | } | |
b674b5b8 | 346 | if (__le32_to_cpu(sb->level) == 10) { |
e4965ef8 N |
347 | printf(" New Layout :"); |
348 | print_r10_layout(__le32_to_cpu(sb->new_layout)); | |
349 | printf("\n"); | |
b674b5b8 NB |
350 | } |
351 | } | |
352 | if (__le32_to_cpu(sb->new_chunk) != __le32_to_cpu(sb->chunksize)) | |
353 | printf(" New Chunksize : %dK\n", __le32_to_cpu(sb->new_chunk)/2); | |
354 | printf("\n"); | |
355 | } | |
dfd4d8ee | 356 | if (sb->devflags) { |
62184891 | 357 | printf(" Flags :"); |
34163fc7 | 358 | if (sb->devflags & WriteMostly1) |
dfd4d8ee NB |
359 | printf(" write-mostly"); |
360 | printf("\n"); | |
361 | } | |
82d9eba6 NB |
362 | |
363 | atime = __le64_to_cpu(sb->utime) & 0xFFFFFFFFFFULL; | |
364 | printf(" Update Time : %.24s\n", ctime(&atime)); | |
365 | ||
366 | if (calc_sb_1_csum(sb) == sb->sb_csum) | |
367 | printf(" Checksum : %x - correct\n", __le32_to_cpu(sb->sb_csum)); | |
368 | else | |
369 | printf(" Checksum : %x - expected %x\n", __le32_to_cpu(sb->sb_csum), | |
370 | __le32_to_cpu(calc_sb_1_csum(sb))); | |
570c0542 | 371 | printf(" Events : %llu\n", (unsigned long long)__le64_to_cpu(sb->events)); |
82d9eba6 NB |
372 | printf("\n"); |
373 | if (__le32_to_cpu(sb->level) == 5) { | |
374 | c = map_num(r5layout, __le32_to_cpu(sb->layout)); | |
375 | printf(" Layout : %s\n", c?c:"-unknown-"); | |
376 | } | |
fe77a154 N |
377 | if (__le32_to_cpu(sb->level) == 6) { |
378 | c = map_num(r6layout, __le32_to_cpu(sb->layout)); | |
379 | printf(" Layout : %s\n", c?c:"-unknown-"); | |
380 | } | |
265e0f17 NB |
381 | if (__le32_to_cpu(sb->level) == 10) { |
382 | int lo = __le32_to_cpu(sb->layout); | |
e4965ef8 N |
383 | printf(" Layout :"); |
384 | print_r10_layout(lo); | |
385 | printf("\n"); | |
265e0f17 | 386 | } |
82d9eba6 NB |
387 | switch(__le32_to_cpu(sb->level)) { |
388 | case 0: | |
389 | case 4: | |
390 | case 5: | |
d2cd3ffc NB |
391 | case 6: |
392 | case 10: | |
b674b5b8 | 393 | printf(" Chunk Size : %dK\n", __le32_to_cpu(sb->chunksize)/2); |
82d9eba6 NB |
394 | break; |
395 | case -1: | |
b674b5b8 | 396 | printf(" Rounding : %dK\n", __le32_to_cpu(sb->chunksize)/2); |
82d9eba6 NB |
397 | break; |
398 | default: break; | |
399 | } | |
400 | printf("\n"); | |
e8e1c176 N |
401 | #if 0 |
402 | /* This turns out to just be confusing */ | |
c3684618 NB |
403 | printf(" Array Slot : %d (", __le32_to_cpu(sb->dev_number)); |
404 | for (i= __le32_to_cpu(sb->max_dev); i> 0 ; i--) | |
405 | if (__le16_to_cpu(sb->dev_roles[i-1]) != 0xffff) | |
406 | break; | |
407 | for (d=0; d < i; d++) { | |
408 | int role = __le16_to_cpu(sb->dev_roles[d]); | |
409 | if (d) printf(", "); | |
410 | if (role == 0xffff) printf("empty"); | |
411 | else if(role == 0xfffe) printf("failed"); | |
412 | else printf("%d", role); | |
413 | } | |
414 | printf(")\n"); | |
e8e1c176 N |
415 | #endif |
416 | printf(" Device Role : "); | |
417 | d = __le32_to_cpu(sb->dev_number); | |
4180aa4d | 418 | if (d < __le32_to_cpu(sb->max_dev)) |
e8e1c176 N |
419 | role = __le16_to_cpu(sb->dev_roles[d]); |
420 | else | |
421 | role = 0xFFFF; | |
422 | if (role >= 0xFFFE) | |
423 | printf("spare\n"); | |
424 | else | |
425 | printf("Active device %d\n", role); | |
426 | ||
82d9eba6 | 427 | printf(" Array State : "); |
4180aa4d | 428 | for (d=0; d<__le32_to_cpu(sb->raid_disks) + delta_extra; d++) { |
82d9eba6 | 429 | int cnt = 0; |
f21e18ca | 430 | unsigned int i; |
82d9eba6 | 431 | for (i=0; i< __le32_to_cpu(sb->max_dev); i++) { |
f21e18ca | 432 | unsigned int role = __le16_to_cpu(sb->dev_roles[i]); |
e4c72d1d | 433 | if (role == d) |
82d9eba6 | 434 | cnt++; |
82d9eba6 NB |
435 | } |
436 | if (cnt > 1) printf("?"); | |
e8e1c176 N |
437 | else if (cnt == 1) printf("A"); |
438 | else printf ("."); | |
82d9eba6 | 439 | } |
e8e1c176 N |
440 | #if 0 |
441 | /* This is confusing too */ | |
6fbba4c9 | 442 | faulty = 0; |
82d9eba6 NB |
443 | for (i=0; i< __le32_to_cpu(sb->max_dev); i++) { |
444 | int role = __le16_to_cpu(sb->dev_roles[i]); | |
6fbba4c9 NB |
445 | if (role == 0xFFFE) |
446 | faulty++; | |
82d9eba6 | 447 | } |
82d9eba6 | 448 | if (faulty) printf(" %d failed", faulty); |
e8e1c176 N |
449 | #endif |
450 | printf(" ('A' == active, '.' == missing)"); | |
82d9eba6 NB |
451 | printf("\n"); |
452 | } | |
453 | ||
454 | ||
061f2c6a | 455 | static void brief_examine_super1(struct supertype *st, int verbose) |
82d9eba6 | 456 | { |
3da92f27 | 457 | struct mdp_superblock_1 *sb = st->sb; |
82d9eba6 | 458 | int i; |
a17a3de3 | 459 | unsigned long long sb_offset; |
2998bc01 | 460 | char *nm; |
b015e6c2 | 461 | char *c=map_num(pers, __le32_to_cpu(sb->level)); |
2998bc01 NB |
462 | |
463 | nm = strchr(sb->set_name, ':'); | |
464 | if (nm) | |
465 | nm++; | |
466 | else if (sb->set_name[0]) | |
467 | nm = sb->set_name; | |
468 | else | |
cf8de691 | 469 | nm = NULL; |
82d9eba6 | 470 | |
5267ba06 N |
471 | printf("ARRAY "); |
472 | if (nm) { | |
473 | printf("/dev/md/"); | |
474 | print_escape(nm); | |
475 | putchar(' '); | |
476 | } | |
061f2c6a N |
477 | if (verbose && c) |
478 | printf(" level=%s", c); | |
a17a3de3 DL |
479 | sb_offset = __le64_to_cpu(sb->super_offset); |
480 | if (sb_offset <= 4) | |
e9a0e728 | 481 | printf(" metadata=1.1 "); |
a17a3de3 | 482 | else if (sb_offset <= 8) |
e9a0e728 | 483 | printf(" metadata=1.2 "); |
a17a3de3 | 484 | else |
e9a0e728 | 485 | printf(" metadata=1.0 "); |
061f2c6a N |
486 | if (verbose) |
487 | printf("num-devices=%d ", __le32_to_cpu(sb->raid_disks)); | |
488 | printf("UUID="); | |
82d9eba6 | 489 | for (i=0; i<16; i++) { |
82d9eba6 | 490 | if ((i&3)==0 && i != 0) printf(":"); |
b7a708af | 491 | printf("%02x", sb->set_uuid[i]); |
82d9eba6 | 492 | } |
5267ba06 N |
493 | if (sb->set_name[0]) { |
494 | printf(" name="); | |
495 | print_quoted(sb->set_name); | |
496 | } | |
82d9eba6 NB |
497 | printf("\n"); |
498 | } | |
499 | ||
0d726f17 KS |
500 | static void export_examine_super1(struct supertype *st) |
501 | { | |
502 | struct mdp_superblock_1 *sb = st->sb; | |
503 | int i; | |
504 | int len = 32; | |
505 | ||
506 | printf("MD_LEVEL=%s\n", map_num(pers, __le32_to_cpu(sb->level))); | |
507 | printf("MD_DEVICES=%d\n", __le32_to_cpu(sb->raid_disks)); | |
508 | for (i=0; i<32; i++) | |
509 | if (sb->set_name[i] == '\n' || | |
510 | sb->set_name[i] == '\0') { | |
511 | len = i; | |
512 | break; | |
513 | } | |
514 | if (len) | |
515 | printf("MD_NAME=%.*s\n", len, sb->set_name); | |
516 | printf("MD_UUID="); | |
517 | for (i=0; i<16; i++) { | |
518 | if ((i&3)==0 && i != 0) printf(":"); | |
519 | printf("%02x", sb->set_uuid[i]); | |
520 | } | |
521 | printf("\n"); | |
522 | printf("MD_UPDATE_TIME=%llu\n", | |
523 | __le64_to_cpu(sb->utime) & 0xFFFFFFFFFFULL); | |
524 | printf("MD_DEV_UUID="); | |
525 | for (i=0; i<16; i++) { | |
526 | if ((i&3)==0 && i != 0) printf(":"); | |
527 | printf("%02x", sb->device_uuid[i]); | |
528 | } | |
529 | printf("\n"); | |
530 | printf("MD_EVENTS=%llu\n", | |
531 | (unsigned long long)__le64_to_cpu(sb->events)); | |
532 | } | |
533 | ||
3da92f27 | 534 | static void detail_super1(struct supertype *st, char *homehost) |
82d9eba6 | 535 | { |
3da92f27 | 536 | struct mdp_superblock_1 *sb = st->sb; |
82d9eba6 | 537 | int i; |
b6750aa8 | 538 | int l = homehost ? strlen(homehost) : 0; |
82d9eba6 | 539 | |
b6750aa8 NB |
540 | printf(" Name : %.32s", sb->set_name); |
541 | if (l > 0 && l < 32 && | |
542 | sb->set_name[l] == ':' && | |
543 | strncmp(sb->set_name, homehost, l) == 0) | |
544 | printf(" (local to host %s)", homehost); | |
545 | printf("\n UUID : "); | |
82d9eba6 | 546 | for (i=0; i<16; i++) { |
82d9eba6 | 547 | if ((i&3)==0 && i != 0) printf(":"); |
34163fc7 | 548 | printf("%02x", sb->set_uuid[i]); |
82d9eba6 | 549 | } |
570c0542 | 550 | printf("\n Events : %llu\n\n", (unsigned long long)__le64_to_cpu(sb->events)); |
82d9eba6 NB |
551 | } |
552 | ||
3da92f27 | 553 | static void brief_detail_super1(struct supertype *st) |
82d9eba6 | 554 | { |
3da92f27 | 555 | struct mdp_superblock_1 *sb = st->sb; |
82d9eba6 NB |
556 | int i; |
557 | ||
5267ba06 N |
558 | if (sb->set_name[0]) { |
559 | printf(" name="); | |
560 | print_quoted(sb->set_name); | |
561 | } | |
82d9eba6 NB |
562 | printf(" UUID="); |
563 | for (i=0; i<16; i++) { | |
82d9eba6 | 564 | if ((i&3)==0 && i != 0) printf(":"); |
34163fc7 | 565 | printf("%02x", sb->set_uuid[i]); |
82d9eba6 NB |
566 | } |
567 | } | |
568 | ||
0d726f17 | 569 | static void export_detail_super1(struct supertype *st) |
54bad364 | 570 | { |
3da92f27 | 571 | struct mdp_superblock_1 *sb = st->sb; |
54bad364 KS |
572 | int i; |
573 | int len = 32; | |
574 | ||
575 | for (i=0; i<32; i++) | |
576 | if (sb->set_name[i] == '\n' || | |
577 | sb->set_name[i] == '\0') { | |
578 | len = i; | |
579 | break; | |
580 | } | |
581 | if (len) | |
582 | printf("MD_NAME=%.*s\n", len, sb->set_name); | |
54bad364 KS |
583 | } |
584 | ||
c7654afc NB |
585 | #endif |
586 | ||
3da92f27 | 587 | static int match_home1(struct supertype *st, char *homehost) |
83b6208e | 588 | { |
3da92f27 | 589 | struct mdp_superblock_1 *sb = st->sb; |
83b6208e NB |
590 | int l = homehost ? strlen(homehost) : 0; |
591 | ||
592 | return (l > 0 && l < 32 && | |
593 | sb->set_name[l] == ':' && | |
594 | strncmp(sb->set_name, homehost, l) == 0); | |
595 | } | |
596 | ||
3da92f27 | 597 | static void uuid_from_super1(struct supertype *st, int uuid[4]) |
82d9eba6 | 598 | { |
3da92f27 | 599 | struct mdp_superblock_1 *super = st->sb; |
82d9eba6 NB |
600 | char *cuuid = (char*)uuid; |
601 | int i; | |
602 | for (i=0; i<16; i++) | |
603 | cuuid[i] = super->set_uuid[i]; | |
604 | } | |
605 | ||
a5d85af7 | 606 | static void getinfo_super1(struct supertype *st, struct mdinfo *info, char *map) |
82d9eba6 | 607 | { |
3da92f27 | 608 | struct mdp_superblock_1 *sb = st->sb; |
82d9eba6 | 609 | int working = 0; |
f21e18ca | 610 | unsigned int i; |
a5d85af7 N |
611 | unsigned int role; |
612 | unsigned int map_disks = info->array.raid_disks; | |
82d9eba6 | 613 | |
95eeceeb | 614 | memset(info, 0, sizeof(*info)); |
82d9eba6 | 615 | info->array.major_version = 1; |
b8ac1967 | 616 | info->array.minor_version = st->minor_version; |
82d9eba6 NB |
617 | info->array.patch_version = 0; |
618 | info->array.raid_disks = __le32_to_cpu(sb->raid_disks); | |
619 | info->array.level = __le32_to_cpu(sb->level); | |
265e0f17 | 620 | info->array.layout = __le32_to_cpu(sb->layout); |
82d9eba6 NB |
621 | info->array.md_minor = -1; |
622 | info->array.ctime = __le64_to_cpu(sb->ctime); | |
353632d9 | 623 | info->array.utime = __le64_to_cpu(sb->utime); |
bed256c2 | 624 | info->array.chunk_size = __le32_to_cpu(sb->chunksize)*512; |
4855f95c | 625 | info->array.state = |
d5977056 | 626 | (__le64_to_cpu(sb->resync_offset) == MaxSector) |
4855f95c | 627 | ? 1 : 0; |
353632d9 NB |
628 | |
629 | info->data_offset = __le64_to_cpu(sb->data_offset); | |
630 | info->component_size = __le64_to_cpu(sb->size); | |
c0c1acd6 | 631 | if (sb->feature_map & __le32_to_cpu(MD_FEATURE_BITMAP_OFFSET)) |
34a13953 | 632 | info->bitmap_offset = (int32_t)__le32_to_cpu(sb->bitmap_offset); |
82d9eba6 NB |
633 | |
634 | info->disk.major = 0; | |
635 | info->disk.minor = 0; | |
fbf8a0b7 | 636 | info->disk.number = __le32_to_cpu(sb->dev_number); |
82d9eba6 | 637 | if (__le32_to_cpu(sb->dev_number) >= __le32_to_cpu(sb->max_dev) || |
911cead7 | 638 | __le32_to_cpu(sb->dev_number) >= MAX_DEVS) |
82d9eba6 NB |
639 | role = 0xfffe; |
640 | else | |
641 | role = __le16_to_cpu(sb->dev_roles[__le32_to_cpu(sb->dev_number)]); | |
642 | ||
643 | info->disk.raid_disk = -1; | |
644 | switch(role) { | |
645 | case 0xFFFF: | |
f22385f9 | 646 | info->disk.state = 0; /* spare: not active, not sync, not faulty */ |
82d9eba6 NB |
647 | break; |
648 | case 0xFFFE: | |
649 | info->disk.state = 1; /* faulty */ | |
650 | break; | |
651 | default: | |
652 | info->disk.state = 6; /* active and in sync */ | |
653 | info->disk.raid_disk = role; | |
654 | } | |
cb099724 N |
655 | if (sb->devflags & WriteMostly1) |
656 | info->disk.state |= (1 << MD_DISK_WRITEMOSTLY); | |
82d9eba6 | 657 | info->events = __le64_to_cpu(sb->events); |
1522c538 | 658 | sprintf(info->text_version, "1.%d", st->minor_version); |
a67dd8cc | 659 | info->safe_mode_delay = 200; |
82d9eba6 NB |
660 | |
661 | memcpy(info->uuid, sb->set_uuid, 16); | |
662 | ||
31317663 NB |
663 | strncpy(info->name, sb->set_name, 32); |
664 | info->name[32] = 0; | |
947fd4dd | 665 | |
921d9e16 N |
666 | if (sb->feature_map & __le32_to_cpu(MD_FEATURE_RECOVERY_OFFSET)) |
667 | info->recovery_start = __le32_to_cpu(sb->recovery_offset); | |
668 | else | |
669 | info->recovery_start = MaxSector; | |
670 | ||
353632d9 NB |
671 | if (sb->feature_map & __le32_to_cpu(MD_FEATURE_RESHAPE_ACTIVE)) { |
672 | info->reshape_active = 1; | |
673 | info->reshape_progress = __le64_to_cpu(sb->reshape_position); | |
674 | info->new_level = __le32_to_cpu(sb->new_level); | |
675 | info->delta_disks = __le32_to_cpu(sb->delta_disks); | |
676 | info->new_layout = __le32_to_cpu(sb->new_layout); | |
bed256c2 | 677 | info->new_chunk = __le32_to_cpu(sb->new_chunk)<<9; |
4180aa4d N |
678 | if (info->delta_disks < 0) |
679 | info->array.raid_disks -= info->delta_disks; | |
353632d9 NB |
680 | } else |
681 | info->reshape_active = 0; | |
682 | ||
6e75048b AK |
683 | info->recovery_blocked = info->reshape_active; |
684 | ||
a5d85af7 N |
685 | if (map) |
686 | for (i=0; i<map_disks; i++) | |
687 | map[i] = 0; | |
f21e18ca | 688 | for (i = 0; i < __le32_to_cpu(sb->max_dev); i++) { |
82d9eba6 | 689 | role = __le16_to_cpu(sb->dev_roles[i]); |
a5d85af7 | 690 | if (/*role == 0xFFFF || */role < (unsigned) info->array.raid_disks) { |
82d9eba6 | 691 | working++; |
a5d85af7 N |
692 | if (map && role < map_disks) |
693 | map[role] = 1; | |
694 | } | |
82d9eba6 NB |
695 | } |
696 | ||
697 | info->array.working_disks = working; | |
698 | } | |
699 | ||
00bbdbda N |
700 | static struct mdinfo *container_content1(struct supertype *st, char *subarray) |
701 | { | |
702 | struct mdinfo *info; | |
703 | ||
704 | if (subarray) | |
705 | return NULL; | |
706 | ||
707 | info = malloc(sizeof(*info)); | |
708 | getinfo_super1(st, info, NULL); | |
709 | return info; | |
710 | } | |
711 | ||
68c7d6d7 | 712 | static int update_super1(struct supertype *st, struct mdinfo *info, |
3da92f27 | 713 | char *update, |
e5eac01f NB |
714 | char *devname, int verbose, |
715 | int uuid_set, char *homehost) | |
82d9eba6 | 716 | { |
5a31170d N |
717 | /* NOTE: for 'assemble' and 'force' we need to return non-zero |
718 | * if any change was made. For others, the return value is | |
719 | * ignored. | |
c4d831e1 | 720 | */ |
82d9eba6 | 721 | int rv = 0; |
3da92f27 | 722 | struct mdp_superblock_1 *sb = st->sb; |
82d9eba6 | 723 | |
67a8c82d NB |
724 | if (strcmp(update, "force-one")==0) { |
725 | /* Not enough devices for a working array, | |
726 | * so bring this one up-to-date | |
727 | */ | |
c4d831e1 NB |
728 | if (sb->events != __cpu_to_le64(info->events)) |
729 | rv = 1; | |
6d3d5804 | 730 | sb->events = __cpu_to_le64(info->events); |
1e2b2765 | 731 | } else if (strcmp(update, "force-array")==0) { |
67a8c82d NB |
732 | /* Degraded array and 'force' requests to |
733 | * maybe need to mark it 'clean'. | |
734 | */ | |
82d9eba6 NB |
735 | switch(__le32_to_cpu(sb->level)) { |
736 | case 5: case 4: case 6: | |
737 | /* need to force clean */ | |
b7528a20 | 738 | if (sb->resync_offset != MaxSector) |
c4d831e1 | 739 | rv = 1; |
b7528a20 | 740 | sb->resync_offset = MaxSector; |
82d9eba6 | 741 | } |
1e2b2765 | 742 | } else if (strcmp(update, "assemble")==0) { |
82d9eba6 NB |
743 | int d = info->disk.number; |
744 | int want; | |
745 | if (info->disk.state == 6) | |
a2ce5a1a | 746 | want = info->disk.raid_disk; |
82d9eba6 NB |
747 | else |
748 | want = 0xFFFF; | |
a2ce5a1a N |
749 | if (sb->dev_roles[d] != __cpu_to_le16(want)) { |
750 | sb->dev_roles[d] = __cpu_to_le16(want); | |
82d9eba6 NB |
751 | rv = 1; |
752 | } | |
d43494fc N |
753 | if (info->reshape_active && |
754 | sb->feature_map & __le32_to_cpu(MD_FEATURE_RESHAPE_ACTIVE) && | |
755 | info->delta_disks >= 0 && | |
756 | info->reshape_progress < __le64_to_cpu(sb->reshape_position)) { | |
757 | sb->reshape_position = __cpu_to_le64(info->reshape_progress); | |
758 | rv = 1; | |
759 | } | |
760 | if (info->reshape_active && | |
761 | sb->feature_map & __le32_to_cpu(MD_FEATURE_RESHAPE_ACTIVE) && | |
762 | info->delta_disks < 0 && | |
763 | info->reshape_progress > __le64_to_cpu(sb->reshape_position)) { | |
764 | sb->reshape_position = __cpu_to_le64(info->reshape_progress); | |
765 | rv = 1; | |
766 | } | |
1e2b2765 | 767 | } else if (strcmp(update, "linear-grow-new") == 0) { |
f21e18ca | 768 | unsigned int i; |
1c6cb603 | 769 | int rfd, fd; |
f21e18ca | 770 | unsigned int max = __le32_to_cpu(sb->max_dev); |
f752781f NB |
771 | |
772 | for (i=0 ; i < max ; i++) | |
773 | if (__le16_to_cpu(sb->dev_roles[i]) >= 0xfffe) | |
774 | break; | |
775 | sb->dev_number = __cpu_to_le32(i); | |
776 | info->disk.number = i; | |
777 | if (max >= __le32_to_cpu(sb->max_dev)) | |
778 | sb->max_dev = __cpu_to_le32(max+1); | |
779 | ||
780 | if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 || | |
781 | read(rfd, sb->device_uuid, 16) != 16) { | |
caa0f6c6 N |
782 | __u32 r[4] = {random(), random(), random(), random()}; |
783 | memcpy(sb->device_uuid, r, 16); | |
f752781f | 784 | } |
7cbeb80e N |
785 | if (rfd >= 0) |
786 | close(rfd); | |
f752781f NB |
787 | |
788 | sb->dev_roles[i] = | |
789 | __cpu_to_le16(info->disk.raid_disk); | |
1c6cb603 N |
790 | |
791 | fd = open(devname, O_RDONLY); | |
792 | if (fd >= 0) { | |
793 | unsigned long long ds; | |
794 | get_dev_size(fd, devname, &ds); | |
795 | close(fd); | |
796 | ds >>= 9; | |
797 | if (__le64_to_cpu(sb->super_offset) < | |
798 | __le64_to_cpu(sb->data_offset)) { | |
799 | sb->data_size = __cpu_to_le64( | |
800 | ds - __le64_to_cpu(sb->data_offset)); | |
801 | } else { | |
802 | ds -= 8*2; | |
803 | ds &= ~(unsigned long long)(4*2-1); | |
804 | sb->super_offset = __cpu_to_le64(ds); | |
805 | sb->data_size = __cpu_to_le64( | |
806 | ds - __le64_to_cpu(sb->data_offset)); | |
807 | } | |
808 | } | |
1e2b2765 | 809 | } else if (strcmp(update, "linear-grow-update") == 0) { |
82d9eba6 | 810 | sb->raid_disks = __cpu_to_le32(info->array.raid_disks); |
f752781f NB |
811 | sb->dev_roles[info->disk.number] = |
812 | __cpu_to_le16(info->disk.raid_disk); | |
1e2b2765 | 813 | } else if (strcmp(update, "resync") == 0) { |
82d9eba6 | 814 | /* make sure resync happens */ |
434b7755 | 815 | sb->resync_offset = 0ULL; |
1e2b2765 | 816 | } else if (strcmp(update, "uuid") == 0) { |
350f29f9 | 817 | copy_uuid(sb->set_uuid, info->uuid, super1.swapuuid); |
bf4fb153 | 818 | |
14263cf1 NB |
819 | if (__le32_to_cpu(sb->feature_map)&MD_FEATURE_BITMAP_OFFSET) { |
820 | struct bitmap_super_s *bm; | |
911cead7 | 821 | bm = (struct bitmap_super_s*)(st->sb+MAX_SB_SIZE); |
bf4fb153 | 822 | memcpy(bm->uuid, sb->set_uuid, 16); |
14263cf1 | 823 | } |
5a31170d N |
824 | } else if (strcmp(update, "no-bitmap") == 0) { |
825 | sb->feature_map &= ~__cpu_to_le32(MD_FEATURE_BITMAP_OFFSET); | |
1e2b2765 | 826 | } else if (strcmp(update, "homehost") == 0 && |
0f23aa88 | 827 | homehost) { |
0237e0ca NB |
828 | char *c; |
829 | update = "name"; | |
830 | c = strchr(sb->set_name, ':'); | |
831 | if (c) | |
832 | strncpy(info->name, c+1, 31 - (c-sb->set_name)); | |
833 | else | |
834 | strncpy(info->name, sb->set_name, 32); | |
26a0b8fd | 835 | info->name[32] = 0; |
1e2b2765 | 836 | } else if (strcmp(update, "name") == 0) { |
c4f12c13 NB |
837 | if (info->name[0] == 0) |
838 | sprintf(info->name, "%d", info->array.md_minor); | |
839 | memset(sb->set_name, 0, sizeof(sb->set_name)); | |
840 | if (homehost && | |
841 | strchr(info->name, ':') == NULL && | |
842 | strlen(homehost)+1+strlen(info->name) < 32) { | |
843 | strcpy(sb->set_name, homehost); | |
844 | strcat(sb->set_name, ":"); | |
845 | strcat(sb->set_name, info->name); | |
846 | } else | |
847 | strcpy(sb->set_name, info->name); | |
1e2b2765 | 848 | } else if (strcmp(update, "devicesize") == 0 && |
bee8ec56 NB |
849 | __le64_to_cpu(sb->super_offset) < |
850 | __le64_to_cpu(sb->data_offset)) { | |
851 | /* set data_size to device size less data_offset */ | |
852 | struct misc_dev_info *misc = (struct misc_dev_info*) | |
911cead7 | 853 | (st->sb + MAX_SB_SIZE + BM_SUPER_SIZE); |
eb9199fb NB |
854 | printf("Size was %llu\n", (unsigned long long) |
855 | __le64_to_cpu(sb->data_size)); | |
bee8ec56 NB |
856 | sb->data_size = __cpu_to_le64( |
857 | misc->device_size - __le64_to_cpu(sb->data_offset)); | |
eb9199fb NB |
858 | printf("Size is %llu\n", (unsigned long long) |
859 | __le64_to_cpu(sb->data_size)); | |
1e2b2765 | 860 | } else if (strcmp(update, "_reshape_progress")==0) |
353632d9 | 861 | sb->reshape_position = __cpu_to_le64(info->reshape_progress); |
16715c01 DL |
862 | else if (strcmp(update, "writemostly")==0) |
863 | sb->devflags |= WriteMostly1; | |
864 | else if (strcmp(update, "readwrite")==0) | |
865 | sb->devflags &= ~WriteMostly1; | |
1e2b2765 N |
866 | else |
867 | rv = -1; | |
82d9eba6 NB |
868 | |
869 | sb->sb_csum = calc_sb_1_csum(sb); | |
870 | return rv; | |
871 | } | |
872 | ||
3da92f27 | 873 | static int init_super1(struct supertype *st, mdu_array_info_t *info, |
3d3dd91e | 874 | unsigned long long size, char *name, char *homehost, int *uuid) |
82d9eba6 | 875 | { |
6416d527 | 876 | struct mdp_superblock_1 *sb; |
82d9eba6 | 877 | int spares; |
34163fc7 | 878 | int rfd; |
05697ec1 | 879 | char defname[10]; |
911cead7 | 880 | int sbsize; |
6416d527 | 881 | |
3c0bcd46 | 882 | if (posix_memalign((void**)&sb, 4096, SUPER1_SIZE) != 0) { |
3d2c4fc7 DW |
883 | fprintf(stderr, Name |
884 | ": %s could not allocate superblock\n", __func__); | |
885 | return 0; | |
886 | } | |
1afa9308 | 887 | memset(sb, 0, SUPER1_SIZE); |
82d9eba6 | 888 | |
64557c33 | 889 | st->sb = sb; |
ba7eb04f | 890 | if (info == NULL) { |
82d9eba6 NB |
891 | /* zeroing superblock */ |
892 | return 0; | |
05697ec1 | 893 | } |
82d9eba6 NB |
894 | |
895 | spares = info->working_disks - info->active_disks; | |
911cead7 | 896 | if (info->raid_disks + spares > MAX_DEVS) { |
82d9eba6 | 897 | fprintf(stderr, Name ": too many devices requested: %d+%d > %d\n", |
911cead7 | 898 | info->raid_disks , spares, MAX_DEVS); |
82d9eba6 NB |
899 | return 0; |
900 | } | |
901 | ||
82d9eba6 NB |
902 | sb->magic = __cpu_to_le32(MD_SB_MAGIC); |
903 | sb->major_version = __cpu_to_le32(1); | |
904 | sb->feature_map = 0; | |
905 | sb->pad0 = 0; | |
34163fc7 | 906 | |
350f29f9 NB |
907 | if (uuid) |
908 | copy_uuid(sb->set_uuid, uuid, super1.swapuuid); | |
909 | else { | |
3d3dd91e NB |
910 | if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 || |
911 | read(rfd, sb->set_uuid, 16) != 16) { | |
caa0f6c6 N |
912 | __u32 r[4] = {random(), random(), random(), random()}; |
913 | memcpy(sb->set_uuid, r, 16); | |
3d3dd91e NB |
914 | } |
915 | if (rfd >= 0) close(rfd); | |
34163fc7 | 916 | } |
82d9eba6 | 917 | |
05697ec1 NB |
918 | if (name == NULL || *name == 0) { |
919 | sprintf(defname, "%d", info->md_minor); | |
920 | name = defname; | |
921 | } | |
05697ec1 NB |
922 | if (homehost && |
923 | strchr(name, ':')== NULL && | |
924 | strlen(homehost)+1+strlen(name) < 32) { | |
925 | strcpy(sb->set_name, homehost); | |
926 | strcat(sb->set_name, ":"); | |
927 | strcat(sb->set_name, name); | |
928 | } else | |
929 | strcpy(sb->set_name, name); | |
82d9eba6 NB |
930 | |
931 | sb->ctime = __cpu_to_le64((unsigned long long)time(0)); | |
932 | sb->level = __cpu_to_le32(info->level); | |
ea329559 | 933 | sb->layout = __cpu_to_le32(info->layout); |
5dd497ee | 934 | sb->size = __cpu_to_le64(size*2ULL); |
82d9eba6 NB |
935 | sb->chunksize = __cpu_to_le32(info->chunk_size>>9); |
936 | sb->raid_disks = __cpu_to_le32(info->raid_disks); | |
937 | ||
938 | sb->data_offset = __cpu_to_le64(0); | |
939 | sb->data_size = __cpu_to_le64(0); | |
940 | sb->super_offset = __cpu_to_le64(0); | |
941 | sb->recovery_offset = __cpu_to_le64(0); | |
942 | ||
943 | sb->utime = sb->ctime; | |
944 | sb->events = __cpu_to_le64(1); | |
34321279 | 945 | if (info->state & (1<<MD_SB_CLEAN)) |
b7528a20 | 946 | sb->resync_offset = MaxSector; |
82d9eba6 NB |
947 | else |
948 | sb->resync_offset = 0; | |
911cead7 N |
949 | sbsize = sizeof(struct mdp_superblock_1) + 2 * (info->raid_disks + spares); |
950 | sbsize = ROUND_UP(sbsize, 512); | |
951 | sb->max_dev = __cpu_to_le32((sbsize - sizeof(struct mdp_superblock_1)) / 2); | |
82d9eba6 | 952 | |
911cead7 | 953 | memset(sb->dev_roles, 0xff, MAX_SB_SIZE - sizeof(struct mdp_superblock_1)); |
82d9eba6 | 954 | |
82d9eba6 NB |
955 | return 1; |
956 | } | |
957 | ||
111d01fc NB |
958 | struct devinfo { |
959 | int fd; | |
960 | char *devname; | |
961 | mdu_disk_info_t disk; | |
962 | struct devinfo *next; | |
963 | }; | |
0e600426 | 964 | #ifndef MDASSEMBLE |
82d9eba6 | 965 | /* Add a device to the superblock being created */ |
f20c3968 | 966 | static int add_to_super1(struct supertype *st, mdu_disk_info_t *dk, |
111d01fc | 967 | int fd, char *devname) |
82d9eba6 | 968 | { |
3da92f27 | 969 | struct mdp_superblock_1 *sb = st->sb; |
82d9eba6 | 970 | __u16 *rp = sb->dev_roles + dk->number; |
111d01fc NB |
971 | struct devinfo *di, **dip; |
972 | ||
dfd4d8ee | 973 | if ((dk->state & 6) == 6) /* active, sync */ |
82d9eba6 | 974 | *rp = __cpu_to_le16(dk->raid_disk); |
412ca2e5 | 975 | else if ((dk->state & ~2) == 0) /* active or idle -> spare */ |
82d9eba6 | 976 | *rp = 0xffff; |
34163fc7 | 977 | else |
82d9eba6 | 978 | *rp = 0xfffe; |
111d01fc | 979 | |
f21e18ca | 980 | if (dk->number >= (int)__le32_to_cpu(sb->max_dev) && |
911cead7 | 981 | __le32_to_cpu(sb->max_dev) < MAX_DEVS) |
9df04a4f | 982 | sb->max_dev = __cpu_to_le32(dk->number+1); |
8844e291 | 983 | |
d2ca6449 | 984 | sb->dev_number = __cpu_to_le32(dk->number); |
16715c01 | 985 | sb->devflags = 0; /* don't copy another disks flags */ |
d2ca6449 NB |
986 | sb->sb_csum = calc_sb_1_csum(sb); |
987 | ||
111d01fc NB |
988 | dip = (struct devinfo **)&st->info; |
989 | while (*dip) | |
990 | dip = &(*dip)->next; | |
991 | di = malloc(sizeof(struct devinfo)); | |
992 | di->fd = fd; | |
993 | di->devname = devname; | |
994 | di->disk = *dk; | |
995 | di->next = NULL; | |
996 | *dip = di; | |
f20c3968 DW |
997 | |
998 | return 0; | |
82d9eba6 | 999 | } |
0e600426 | 1000 | #endif |
82d9eba6 | 1001 | |
3da92f27 | 1002 | static void locate_bitmap1(struct supertype *st, int fd); |
14263cf1 | 1003 | |
3da92f27 | 1004 | static int store_super1(struct supertype *st, int fd) |
82d9eba6 | 1005 | { |
3da92f27 | 1006 | struct mdp_superblock_1 *sb = st->sb; |
6fbba4c9 | 1007 | unsigned long long sb_offset; |
308340aa | 1008 | struct align_fd afd; |
82d9eba6 | 1009 | int sbsize; |
5dd497ee | 1010 | unsigned long long dsize; |
96395475 | 1011 | |
beae1dfe NB |
1012 | if (!get_dev_size(fd, NULL, &dsize)) |
1013 | return 1; | |
1014 | ||
1015 | dsize >>= 9; | |
96395475 | 1016 | |
5dd497ee | 1017 | if (dsize < 24) |
96395475 NB |
1018 | return 2; |
1019 | ||
308340aa JS |
1020 | init_afd(&afd, fd); |
1021 | ||
96395475 NB |
1022 | /* |
1023 | * Calculate the position of the superblock. | |
1024 | * It is always aligned to a 4K boundary and | |
1025 | * depending on minor_version, it can be: | |
1026 | * 0: At least 8K, but less than 12K, from end of device | |
1027 | * 1: At start of device | |
1028 | * 2: 4K from start of device. | |
1029 | */ | |
1030 | switch(st->minor_version) { | |
1031 | case 0: | |
5dd497ee | 1032 | sb_offset = dsize; |
96395475 NB |
1033 | sb_offset -= 8*2; |
1034 | sb_offset &= ~(4*2-1); | |
1035 | break; | |
1036 | case 1: | |
6fbba4c9 | 1037 | sb_offset = 0; |
96395475 NB |
1038 | break; |
1039 | case 2: | |
1040 | sb_offset = 4*2; | |
1041 | break; | |
1042 | default: | |
1043 | return -EINVAL; | |
1044 | } | |
1045 | ||
82d9eba6 | 1046 | |
34163fc7 | 1047 | |
6fbba4c9 NB |
1048 | if (sb_offset != __le64_to_cpu(sb->super_offset) && |
1049 | 0 != __le64_to_cpu(sb->super_offset) | |
96395475 NB |
1050 | ) { |
1051 | fprintf(stderr, Name ": internal error - sb_offset is wrong\n"); | |
1052 | abort(); | |
1053 | } | |
82d9eba6 | 1054 | |
6fbba4c9 | 1055 | if (lseek64(fd, sb_offset << 9, 0)< 0LL) |
82d9eba6 NB |
1056 | return 3; |
1057 | ||
0a2f1894 | 1058 | sbsize = ROUND_UP(sizeof(*sb) + 2 * __le32_to_cpu(sb->max_dev), 512); |
82d9eba6 | 1059 | |
308340aa | 1060 | if (awrite(&afd, sb, sbsize) != sbsize) |
82d9eba6 NB |
1061 | return 4; |
1062 | ||
14263cf1 NB |
1063 | if (sb->feature_map & __cpu_to_le32(MD_FEATURE_BITMAP_OFFSET)) { |
1064 | struct bitmap_super_s *bm = (struct bitmap_super_s*) | |
911cead7 | 1065 | (((char*)sb)+MAX_SB_SIZE); |
14263cf1 | 1066 | if (__le32_to_cpu(bm->magic) == BITMAP_MAGIC) { |
3da92f27 | 1067 | locate_bitmap1(st, fd); |
308340aa JS |
1068 | if (awrite(&afd, bm, sizeof(*bm)) != sizeof(*bm)) |
1069 | return 5; | |
14263cf1 NB |
1070 | } |
1071 | } | |
570c0542 | 1072 | fsync(fd); |
82d9eba6 NB |
1073 | return 0; |
1074 | } | |
1075 | ||
3da92f27 | 1076 | static int load_super1(struct supertype *st, int fd, char *devname); |
892debc8 | 1077 | |
2fb749d1 NB |
1078 | static unsigned long choose_bm_space(unsigned long devsize) |
1079 | { | |
1080 | /* if the device is bigger than 8Gig, save 64k for bitmap usage, | |
1081 | * if bigger than 200Gig, save 128k | |
a380e275 N |
1082 | * NOTE: result must be multiple of 4K else bad things happen |
1083 | * on 4K-sector devices. | |
2fb749d1 | 1084 | */ |
69646c14 | 1085 | if (devsize < 64*2) return 0; |
2fb749d1 NB |
1086 | if (devsize - 64*2 >= 200*1024*1024*2) |
1087 | return 128*2; | |
1088 | if (devsize - 4*2 > 8*1024*1024*2) | |
1089 | return 64*2; | |
1090 | return 4*2; | |
1091 | } | |
1092 | ||
e8090005 N |
1093 | static void free_super1(struct supertype *st); |
1094 | ||
111d01fc NB |
1095 | #ifndef MDASSEMBLE |
1096 | static int write_init_super1(struct supertype *st) | |
82d9eba6 | 1097 | { |
3da92f27 | 1098 | struct mdp_superblock_1 *sb = st->sb; |
e8090005 | 1099 | struct supertype *refst; |
dfe47e00 | 1100 | int rfd; |
111d01fc | 1101 | int rv = 0; |
f21e18ca | 1102 | unsigned long long bm_space; |
a380e275 | 1103 | unsigned long long reserved; |
111d01fc | 1104 | struct devinfo *di; |
8fac0577 | 1105 | unsigned long long dsize, array_size; |
508a7f16 | 1106 | unsigned long long sb_offset, headroom; |
82d9eba6 | 1107 | |
0d478e24 | 1108 | for (di = st->info; di; di = di->next) { |
111d01fc NB |
1109 | if (di->disk.state == 1) |
1110 | continue; | |
a0c8a17f NB |
1111 | if (di->fd < 0) |
1112 | continue; | |
82d9eba6 | 1113 | |
9277cc77 N |
1114 | while (Kill(di->devname, NULL, 0, 1, 1) == 0) |
1115 | ; | |
82d9eba6 | 1116 | |
111d01fc NB |
1117 | sb->dev_number = __cpu_to_le32(di->disk.number); |
1118 | if (di->disk.state & (1<<MD_DISK_WRITEMOSTLY)) | |
adbb382b | 1119 | sb->devflags |= WriteMostly1; |
9a88e7b6 | 1120 | else |
adbb382b | 1121 | sb->devflags &= ~WriteMostly1; |
892debc8 | 1122 | |
111d01fc NB |
1123 | if ((rfd = open("/dev/urandom", O_RDONLY)) < 0 || |
1124 | read(rfd, sb->device_uuid, 16) != 16) { | |
83208785 N |
1125 | __u32 r[4] = {random(), random(), random(), random()}; |
1126 | memcpy(sb->device_uuid, r, 16); | |
111d01fc | 1127 | } |
83208785 N |
1128 | if (rfd >= 0) |
1129 | close(rfd); | |
1130 | ||
111d01fc NB |
1131 | sb->events = 0; |
1132 | ||
e8090005 N |
1133 | refst = dup_super(st); |
1134 | if (load_super1(refst, di->fd, NULL)==0) { | |
1135 | struct mdp_superblock_1 *refsb = refst->sb; | |
111d01fc NB |
1136 | |
1137 | memcpy(sb->device_uuid, refsb->device_uuid, 16); | |
1138 | if (memcmp(sb->set_uuid, refsb->set_uuid, 16)==0) { | |
1139 | /* same array, so preserve events and | |
1140 | * dev_number */ | |
1141 | sb->events = refsb->events; | |
1142 | /* bugs in 2.6.17 and earlier mean the | |
1143 | * dev_number chosen in Manage must be preserved | |
1144 | */ | |
1145 | if (get_linux_version() >= 2006018) | |
1146 | sb->dev_number = refsb->dev_number; | |
1147 | } | |
e8090005 | 1148 | free_super1(refst); |
892debc8 | 1149 | } |
e8090005 | 1150 | free(refst); |
34163fc7 | 1151 | |
40114213 JS |
1152 | if (!get_dev_size(di->fd, NULL, &dsize)) { |
1153 | rv = 1; | |
1154 | goto error_out; | |
1155 | } | |
111d01fc | 1156 | dsize >>= 9; |
82d9eba6 | 1157 | |
111d01fc NB |
1158 | if (dsize < 24) { |
1159 | close(di->fd); | |
40114213 JS |
1160 | rv = 2; |
1161 | goto error_out; | |
111d01fc | 1162 | } |
82d9eba6 NB |
1163 | |
1164 | ||
111d01fc NB |
1165 | /* |
1166 | * Calculate the position of the superblock. | |
1167 | * It is always aligned to a 4K boundary and | |
1168 | * depending on minor_version, it can be: | |
1169 | * 0: At least 8K, but less than 12K, from end of device | |
1170 | * 1: At start of device | |
1171 | * 2: 4K from start of device. | |
1172 | * Depending on the array size, we might leave extra space | |
1173 | * for a bitmap. | |
1174 | */ | |
1175 | array_size = __le64_to_cpu(sb->size); | |
1176 | /* work out how much space we left for a bitmap */ | |
1177 | bm_space = choose_bm_space(array_size); | |
1178 | ||
508a7f16 N |
1179 | /* We try to leave 0.1% at the start for reshape |
1180 | * operations, but limit this to 128Meg (0.1% of 10Gig) | |
1181 | * which is plenty for efficient reshapes | |
1182 | */ | |
1183 | headroom = 128 * 1024 * 2; | |
1184 | while (headroom << 10 > array_size) | |
1185 | headroom >>= 1; | |
1186 | ||
111d01fc NB |
1187 | switch(st->minor_version) { |
1188 | case 0: | |
1189 | sb_offset = dsize; | |
1190 | sb_offset -= 8*2; | |
1191 | sb_offset &= ~(4*2-1); | |
1192 | sb->super_offset = __cpu_to_le64(sb_offset); | |
1193 | sb->data_offset = __cpu_to_le64(0); | |
f21e18ca | 1194 | if (sb_offset < array_size + bm_space) |
a380e275 | 1195 | bm_space = sb_offset - array_size; |
111d01fc NB |
1196 | sb->data_size = __cpu_to_le64(sb_offset - bm_space); |
1197 | break; | |
1198 | case 1: | |
1199 | sb->super_offset = __cpu_to_le64(0); | |
a380e275 | 1200 | reserved = bm_space + 4*2; |
d9751e06 N |
1201 | if (reserved < headroom) |
1202 | reserved = headroom; | |
1203 | if (reserved + array_size > dsize) | |
1204 | reserved = dsize - array_size; | |
a380e275 N |
1205 | /* Try for multiple of 1Meg so it is nicely aligned */ |
1206 | #define ONE_MEG (2*1024) | |
d9751e06 N |
1207 | if (reserved > ONE_MEG) |
1208 | reserved = (reserved/ONE_MEG) * ONE_MEG; | |
1209 | ||
a380e275 N |
1210 | /* force 4K alignment */ |
1211 | reserved &= ~7ULL; | |
1212 | ||
1213 | sb->data_offset = __cpu_to_le64(reserved); | |
1214 | sb->data_size = __cpu_to_le64(dsize - reserved); | |
111d01fc NB |
1215 | break; |
1216 | case 2: | |
1217 | sb_offset = 4*2; | |
1218 | sb->super_offset = __cpu_to_le64(4*2); | |
d9751e06 | 1219 | if (4*2 + 4*2 + bm_space + array_size |
111d01fc | 1220 | > dsize) |
d9751e06 | 1221 | bm_space = dsize - array_size |
111d01fc | 1222 | - 4*2 - 4*2; |
a380e275 N |
1223 | |
1224 | reserved = bm_space + 4*2 + 4*2; | |
d9751e06 N |
1225 | if (reserved < headroom) |
1226 | reserved = headroom; | |
1227 | if (reserved + array_size > dsize) | |
1228 | reserved = dsize - array_size; | |
a380e275 N |
1229 | /* Try for multiple of 1Meg so it is nicely aligned */ |
1230 | #define ONE_MEG (2*1024) | |
d9751e06 N |
1231 | if (reserved > ONE_MEG) |
1232 | reserved = (reserved/ONE_MEG) * ONE_MEG; | |
1233 | ||
a380e275 N |
1234 | /* force 4K alignment */ |
1235 | reserved &= ~7ULL; | |
1236 | ||
1237 | sb->data_offset = __cpu_to_le64(reserved); | |
1238 | sb->data_size = __cpu_to_le64(dsize - reserved); | |
111d01fc NB |
1239 | break; |
1240 | default: | |
40114213 JS |
1241 | fprintf(stderr, Name ": Failed to write invalid " |
1242 | "metadata format 1.%i to %s\n", | |
1243 | st->minor_version, di->devname); | |
1244 | rv = -EINVAL; | |
1245 | goto out; | |
111d01fc | 1246 | } |
82d9eba6 | 1247 | |
111d01fc NB |
1248 | sb->sb_csum = calc_sb_1_csum(sb); |
1249 | rv = store_super1(st, di->fd); | |
111d01fc NB |
1250 | if (rv == 0 && (__le32_to_cpu(sb->feature_map) & 1)) |
1251 | rv = st->ss->write_bitmap(st, di->fd); | |
1252 | close(di->fd); | |
1253 | di->fd = -1; | |
0d478e24 | 1254 | if (rv) |
1255 | goto error_out; | |
111d01fc | 1256 | } |
40114213 JS |
1257 | error_out: |
1258 | if (rv) | |
1259 | fprintf(stderr, Name ": Failed to write metadata to %s\n", | |
1260 | di->devname); | |
1261 | out: | |
82d9eba6 NB |
1262 | return rv; |
1263 | } | |
111d01fc | 1264 | #endif |
82d9eba6 | 1265 | |
64557c33 | 1266 | static int compare_super1(struct supertype *st, struct supertype *tst) |
82d9eba6 NB |
1267 | { |
1268 | /* | |
1269 | * return: | |
1270 | * 0 same, or first was empty, and second was copied | |
1271 | * 1 second had wrong number | |
1272 | * 2 wrong uuid | |
1273 | * 3 wrong other info | |
1274 | */ | |
64557c33 NB |
1275 | struct mdp_superblock_1 *first = st->sb; |
1276 | struct mdp_superblock_1 *second = tst->sb; | |
82d9eba6 NB |
1277 | |
1278 | if (second->magic != __cpu_to_le32(MD_SB_MAGIC)) | |
1279 | return 1; | |
1280 | if (second->major_version != __cpu_to_le32(1)) | |
1281 | return 1; | |
1282 | ||
1283 | if (!first) { | |
3c0bcd46 | 1284 | if (posix_memalign((void**)&first, 4096, SUPER1_SIZE) != 0) { |
3d2c4fc7 DW |
1285 | fprintf(stderr, Name |
1286 | ": %s could not allocate superblock\n", __func__); | |
1287 | return 1; | |
1288 | } | |
41226756 | 1289 | memcpy(first, second, SUPER1_SIZE); |
64557c33 | 1290 | st->sb = first; |
82d9eba6 NB |
1291 | return 0; |
1292 | } | |
1293 | if (memcmp(first->set_uuid, second->set_uuid, 16)!= 0) | |
1294 | return 2; | |
1295 | ||
1296 | if (first->ctime != second->ctime || | |
1297 | first->level != second->level || | |
1298 | first->layout != second->layout || | |
1299 | first->size != second->size || | |
1300 | first->chunksize != second->chunksize || | |
1301 | first->raid_disks != second->raid_disks) | |
1302 | return 3; | |
1303 | return 0; | |
1304 | } | |
1305 | ||
3da92f27 | 1306 | static int load_super1(struct supertype *st, int fd, char *devname) |
82d9eba6 | 1307 | { |
5dd497ee | 1308 | unsigned long long dsize; |
82d9eba6 NB |
1309 | unsigned long long sb_offset; |
1310 | struct mdp_superblock_1 *super; | |
14263cf1 NB |
1311 | int uuid[4]; |
1312 | struct bitmap_super_s *bsb; | |
bee8ec56 | 1313 | struct misc_dev_info *misc; |
308340aa | 1314 | struct align_fd afd; |
82d9eba6 | 1315 | |
3da92f27 | 1316 | free_super1(st); |
82d9eba6 | 1317 | |
308340aa JS |
1318 | init_afd(&afd, fd); |
1319 | ||
a17a3de3 | 1320 | if (st->ss == NULL || st->minor_version == -1) { |
570c0542 | 1321 | int bestvers = -1; |
23dc1ae8 | 1322 | struct supertype tst; |
570c0542 NB |
1323 | __u64 bestctime = 0; |
1324 | /* guess... choose latest ctime */ | |
ef609477 | 1325 | memset(&tst, 0, sizeof(tst)); |
23dc1ae8 NB |
1326 | tst.ss = &super1; |
1327 | for (tst.minor_version = 0; tst.minor_version <= 2 ; tst.minor_version++) { | |
3da92f27 NB |
1328 | switch(load_super1(&tst, fd, devname)) { |
1329 | case 0: super = tst.sb; | |
570c0542 NB |
1330 | if (bestvers == -1 || |
1331 | bestctime < __le64_to_cpu(super->ctime)) { | |
23dc1ae8 | 1332 | bestvers = tst.minor_version; |
570c0542 NB |
1333 | bestctime = __le64_to_cpu(super->ctime); |
1334 | } | |
1335 | free(super); | |
3da92f27 | 1336 | tst.sb = NULL; |
570c0542 | 1337 | break; |
23dc1ae8 | 1338 | case 1: return 1; /*bad device */ |
82d9eba6 NB |
1339 | case 2: break; /* bad, try next */ |
1340 | } | |
1341 | } | |
570c0542 NB |
1342 | if (bestvers != -1) { |
1343 | int rv; | |
23dc1ae8 NB |
1344 | tst.minor_version = bestvers; |
1345 | tst.ss = &super1; | |
911cead7 | 1346 | tst.max_devs = MAX_DEVS; |
3da92f27 | 1347 | rv = load_super1(&tst, fd, devname); |
23dc1ae8 NB |
1348 | if (rv == 0) |
1349 | *st = tst; | |
570c0542 NB |
1350 | return rv; |
1351 | } | |
82d9eba6 NB |
1352 | return 2; |
1353 | } | |
beae1dfe NB |
1354 | if (!get_dev_size(fd, devname, &dsize)) |
1355 | return 1; | |
1356 | dsize >>= 9; | |
82d9eba6 | 1357 | |
5dd497ee | 1358 | if (dsize < 24) { |
82d9eba6 | 1359 | if (devname) |
5dd497ee NB |
1360 | fprintf(stderr, Name ": %s is too small for md: size is %llu sectors.\n", |
1361 | devname, dsize); | |
82d9eba6 NB |
1362 | return 1; |
1363 | } | |
1364 | ||
1365 | /* | |
1366 | * Calculate the position of the superblock. | |
1367 | * It is always aligned to a 4K boundary and | |
14263cf1 | 1368 | * depending on minor_version, it can be: |
82d9eba6 NB |
1369 | * 0: At least 8K, but less than 12K, from end of device |
1370 | * 1: At start of device | |
1371 | * 2: 4K from start of device. | |
1372 | */ | |
1373 | switch(st->minor_version) { | |
1374 | case 0: | |
5dd497ee | 1375 | sb_offset = dsize; |
82d9eba6 NB |
1376 | sb_offset -= 8*2; |
1377 | sb_offset &= ~(4*2-1); | |
1378 | break; | |
1379 | case 1: | |
1380 | sb_offset = 0; | |
1381 | break; | |
1382 | case 2: | |
1383 | sb_offset = 4*2; | |
1384 | break; | |
1385 | default: | |
1386 | return -EINVAL; | |
1387 | } | |
1388 | ||
1389 | ioctl(fd, BLKFLSBUF, 0); /* make sure we read current data */ | |
1390 | ||
1391 | ||
1392 | if (lseek64(fd, sb_offset << 9, 0)< 0LL) { | |
1393 | if (devname) | |
1394 | fprintf(stderr, Name ": Cannot seek to superblock on %s: %s\n", | |
1395 | devname, strerror(errno)); | |
1396 | return 1; | |
1397 | } | |
1398 | ||
3c0bcd46 | 1399 | if (posix_memalign((void**)&super, 4096, SUPER1_SIZE) != 0) { |
3d2c4fc7 DW |
1400 | fprintf(stderr, Name ": %s could not allocate superblock\n", |
1401 | __func__); | |
1402 | return 1; | |
1403 | } | |
82d9eba6 | 1404 | |
308340aa | 1405 | if (aread(&afd, super, MAX_SB_SIZE) != MAX_SB_SIZE) { |
82d9eba6 NB |
1406 | if (devname) |
1407 | fprintf(stderr, Name ": Cannot read superblock on %s\n", | |
1408 | devname); | |
1409 | free(super); | |
1410 | return 1; | |
1411 | } | |
1412 | ||
1413 | if (__le32_to_cpu(super->magic) != MD_SB_MAGIC) { | |
1414 | if (devname) | |
1415 | fprintf(stderr, Name ": No super block found on %s (Expected magic %08x, got %08x)\n", | |
1416 | devname, MD_SB_MAGIC, __le32_to_cpu(super->magic)); | |
1417 | free(super); | |
1418 | return 2; | |
1419 | } | |
1420 | ||
1421 | if (__le32_to_cpu(super->major_version) != 1) { | |
1422 | if (devname) | |
1423 | fprintf(stderr, Name ": Cannot interpret superblock on %s - version is %d\n", | |
1424 | devname, __le32_to_cpu(super->major_version)); | |
1425 | free(super); | |
1426 | return 2; | |
1427 | } | |
1428 | if (__le64_to_cpu(super->super_offset) != sb_offset) { | |
1429 | if (devname) | |
1430 | fprintf(stderr, Name ": No superblock found on %s (super_offset is wrong)\n", | |
1431 | devname); | |
1432 | free(super); | |
1433 | return 2; | |
1434 | } | |
64557c33 | 1435 | st->sb = super; |
14263cf1 | 1436 | |
911cead7 | 1437 | bsb = (struct bitmap_super_s *)(((char*)super)+MAX_SB_SIZE); |
bee8ec56 | 1438 | |
911cead7 | 1439 | misc = (struct misc_dev_info*) (((char*)super)+MAX_SB_SIZE+BM_SUPER_SIZE); |
bee8ec56 NB |
1440 | misc->device_size = dsize; |
1441 | ||
14263cf1 NB |
1442 | /* Now check on the bitmap superblock */ |
1443 | if ((__le32_to_cpu(super->feature_map)&MD_FEATURE_BITMAP_OFFSET) == 0) | |
1444 | return 0; | |
1445 | /* Read the bitmap superblock and make sure it looks | |
1446 | * valid. If it doesn't clear the bit. An --assemble --force | |
1447 | * should get that written out. | |
1448 | */ | |
3da92f27 | 1449 | locate_bitmap1(st, fd); |
308340aa | 1450 | if (aread(&afd, bsb, 512) != 512) |
14263cf1 NB |
1451 | goto no_bitmap; |
1452 | ||
3da92f27 | 1453 | uuid_from_super1(st, uuid); |
14263cf1 NB |
1454 | if (__le32_to_cpu(bsb->magic) != BITMAP_MAGIC || |
1455 | memcmp(bsb->uuid, uuid, 16) != 0) | |
1456 | goto no_bitmap; | |
1457 | return 0; | |
1458 | ||
1459 | no_bitmap: | |
c0c1acd6 N |
1460 | super->feature_map = __cpu_to_le32(__le32_to_cpu(super->feature_map) |
1461 | & ~MD_FEATURE_BITMAP_OFFSET); | |
82d9eba6 NB |
1462 | return 0; |
1463 | } | |
1464 | ||
1465 | ||
1466 | static struct supertype *match_metadata_desc1(char *arg) | |
1467 | { | |
2de0b8a2 JS |
1468 | struct supertype *st = calloc(1, sizeof(*st)); |
1469 | if (!st) | |
1470 | return st; | |
82d9eba6 | 1471 | |
d1d599ea | 1472 | st->container_dev = NoMdDev; |
82d9eba6 | 1473 | st->ss = &super1; |
911cead7 | 1474 | st->max_devs = MAX_DEVS; |
64557c33 | 1475 | st->sb = NULL; |
9b2a22d3 N |
1476 | /* leading zeros can be safely ignored. --detail generates them. */ |
1477 | while (*arg == '0') | |
1478 | arg++; | |
1479 | if (strcmp(arg, "1.0") == 0 || | |
1480 | strcmp(arg, "1.00") == 0) { | |
82d9eba6 NB |
1481 | st->minor_version = 0; |
1482 | return st; | |
1483 | } | |
9b2a22d3 | 1484 | if (strcmp(arg, "1.1") == 0 || |
50827504 | 1485 | strcmp(arg, "1.01") == 0 |
7d5c3964 | 1486 | ) { |
82d9eba6 NB |
1487 | st->minor_version = 1; |
1488 | return st; | |
1489 | } | |
9b2a22d3 | 1490 | if (strcmp(arg, "1.2") == 0 || |
26f467a9 | 1491 | #ifndef DEFAULT_OLD_METADATA /* ifdef in super0.c */ |
ad90adb6 | 1492 | strcmp(arg, "default") == 0 || |
26f467a9 | 1493 | #endif /* DEFAULT_OLD_METADATA */ |
9b2a22d3 | 1494 | strcmp(arg, "1.02") == 0) { |
82d9eba6 NB |
1495 | st->minor_version = 2; |
1496 | return st; | |
1497 | } | |
a17a3de3 | 1498 | if (strcmp(arg, "1") == 0 || |
17f25ca6 | 1499 | strcmp(arg, "default") == 0) { |
a17a3de3 DL |
1500 | st->minor_version = -1; |
1501 | return st; | |
1502 | } | |
82d9eba6 NB |
1503 | |
1504 | free(st); | |
1505 | return NULL; | |
1506 | } | |
1507 | ||
34163fc7 NB |
1508 | /* find available size on device with this devsize, using |
1509 | * superblock type st, and reserving 'reserve' sectors for | |
1510 | * a possible bitmap | |
1511 | */ | |
1bf4e2d9 | 1512 | static __u64 avail_size1(struct supertype *st, __u64 devsize) |
82d9eba6 | 1513 | { |
2a528478 | 1514 | struct mdp_superblock_1 *super = st->sb; |
82d9eba6 NB |
1515 | if (devsize < 24) |
1516 | return 0; | |
1517 | ||
2a528478 N |
1518 | if (super == NULL) |
1519 | /* creating: allow suitable space for bitmap */ | |
1520 | devsize -= choose_bm_space(devsize); | |
1521 | #ifndef MDASSEMBLE | |
1522 | else if (__le32_to_cpu(super->feature_map)&MD_FEATURE_BITMAP_OFFSET) { | |
1523 | /* hot-add. allow for actual size of bitmap */ | |
1524 | struct bitmap_super_s *bsb; | |
911cead7 | 1525 | bsb = (struct bitmap_super_s *)(((char*)super)+MAX_SB_SIZE); |
2a528478 N |
1526 | devsize -= bitmap_sectors(bsb); |
1527 | } | |
1528 | #endif | |
21e92547 | 1529 | |
a380e275 N |
1530 | if (st->minor_version < 0) |
1531 | /* not specified, so time to set default */ | |
1532 | st->minor_version = 2; | |
1533 | if (super == NULL && st->minor_version > 0) { | |
1534 | /* haven't committed to a size yet, so allow some | |
508a7f16 N |
1535 | * slack for space for reshape. |
1536 | * Limit slack to 128M, but aim for about 0.1% | |
a380e275 | 1537 | */ |
508a7f16 N |
1538 | unsigned long long headroom = 128*1024*2; |
1539 | while ((headroom << 10) > devsize) | |
1540 | headroom >>= 1; | |
1541 | devsize -= headroom; | |
a380e275 | 1542 | } |
34163fc7 NB |
1543 | switch(st->minor_version) { |
1544 | case 0: | |
1bf4e2d9 NB |
1545 | /* at end */ |
1546 | return ((devsize - 8*2 ) & ~(4*2-1)); | |
34163fc7 | 1547 | case 1: |
1bf4e2d9 NB |
1548 | /* at start, 4K for superblock and possible bitmap */ |
1549 | return devsize - 4*2; | |
34163fc7 | 1550 | case 2: |
1bf4e2d9 NB |
1551 | /* 4k from start, 4K for superblock and possible bitmap */ |
1552 | return devsize - (4+4)*2; | |
34163fc7 NB |
1553 | } |
1554 | return 0; | |
1555 | } | |
1556 | ||
1bf4e2d9 | 1557 | static int |
3da92f27 | 1558 | add_internal_bitmap1(struct supertype *st, |
199171a2 NB |
1559 | int *chunkp, int delay, int write_behind, |
1560 | unsigned long long size, | |
21e92547 | 1561 | int may_change, int major) |
34163fc7 NB |
1562 | { |
1563 | /* | |
c0c1acd6 N |
1564 | * If not may_change, then this is a 'Grow' without sysfs support for |
1565 | * bitmaps, and the bitmap must fit after the superblock at 1K offset. | |
1566 | * If may_change, then this is create or a Grow with sysfs syupport, | |
1567 | * and we can put the bitmap wherever we like. | |
34163fc7 | 1568 | * |
f9c25f1d | 1569 | * size is in sectors, chunk is in bytes !!! |
34163fc7 NB |
1570 | */ |
1571 | ||
1bf4e2d9 | 1572 | unsigned long long bits; |
199171a2 | 1573 | unsigned long long max_bits; |
34163fc7 | 1574 | unsigned long long min_chunk; |
199171a2 | 1575 | long offset; |
f21e18ca | 1576 | unsigned long long chunk = *chunkp; |
37dfc3d6 | 1577 | int room = 0; |
c0c1acd6 | 1578 | int creating = 0; |
3da92f27 | 1579 | struct mdp_superblock_1 *sb = st->sb; |
911cead7 | 1580 | bitmap_super_t *bms = (bitmap_super_t*)(((char*)sb) + MAX_SB_SIZE); |
3b7e9d0c | 1581 | int uuid[4]; |
34163fc7 | 1582 | |
c0c1acd6 N |
1583 | if (__le64_to_cpu(sb->data_size) == 0) |
1584 | /* Must be creating the array, else data_size would be non-zero */ | |
1585 | creating = 1; | |
199171a2 NB |
1586 | switch(st->minor_version) { |
1587 | case 0: | |
a31128d2 N |
1588 | /* either 3K after the superblock (when hot-add), |
1589 | * or some amount of space before. | |
199171a2 | 1590 | */ |
c0c1acd6 | 1591 | if (creating) { |
199171a2 NB |
1592 | /* We are creating array, so we *know* how much room has |
1593 | * been left. | |
1594 | */ | |
1595 | offset = 0; | |
2fb749d1 | 1596 | room = choose_bm_space(__le64_to_cpu(sb->size)); |
199171a2 NB |
1597 | } else { |
1598 | room = __le64_to_cpu(sb->super_offset) | |
1599 | - __le64_to_cpu(sb->data_offset) | |
1600 | - __le64_to_cpu(sb->data_size); | |
c0c1acd6 N |
1601 | |
1602 | if (!may_change || (room < 3*2 && | |
199171a2 NB |
1603 | __le32_to_cpu(sb->max_dev) <= 384)) { |
1604 | room = 3*2; | |
1605 | offset = 1*2; | |
1606 | } else { | |
1607 | offset = 0; /* means movable offset */ | |
1608 | } | |
1609 | } | |
1610 | break; | |
1611 | case 1: | |
1612 | case 2: /* between superblock and data */ | |
c0c1acd6 | 1613 | if (creating) { |
199171a2 | 1614 | offset = 4*2; |
2fb749d1 | 1615 | room = choose_bm_space(__le64_to_cpu(sb->size)); |
199171a2 NB |
1616 | } else { |
1617 | room = __le64_to_cpu(sb->data_offset) | |
1618 | - __le64_to_cpu(sb->super_offset); | |
c0c1acd6 N |
1619 | if (!may_change) { |
1620 | room -= 2; /* Leave 1K for superblock */ | |
199171a2 NB |
1621 | offset = 2; |
1622 | } else { | |
c0c1acd6 | 1623 | room -= 4*2; /* leave 4K for superblock */ |
199171a2 NB |
1624 | offset = 4*2; |
1625 | } | |
1626 | } | |
1627 | break; | |
ae491d1e NB |
1628 | default: |
1629 | return 0; | |
199171a2 | 1630 | } |
1bf4e2d9 | 1631 | |
199171a2 NB |
1632 | if (chunk == UnSet && room > 128*2) |
1633 | /* Limit to 128K of bitmap when chunk size not requested */ | |
1634 | room = 128*2; | |
1bf4e2d9 | 1635 | |
199171a2 | 1636 | max_bits = (room * 512 - sizeof(bitmap_super_t)) * 8; |
34163fc7 NB |
1637 | |
1638 | min_chunk = 4096; /* sub-page chunks don't work yet.. */ | |
f9c25f1d | 1639 | bits = (size*512)/min_chunk +1; |
34163fc7 NB |
1640 | while (bits > max_bits) { |
1641 | min_chunk *= 2; | |
1642 | bits = (bits+1)/2; | |
1643 | } | |
b8ab2a50 N |
1644 | if (chunk == UnSet) { |
1645 | /* For practical purpose, 64Meg is a good | |
1646 | * default chunk size for internal bitmaps. | |
1647 | */ | |
34163fc7 | 1648 | chunk = min_chunk; |
b8ab2a50 N |
1649 | if (chunk < 64*1024*1024) |
1650 | chunk = 64*1024*1024; | |
1651 | } else if (chunk < min_chunk) | |
34163fc7 | 1652 | return 0; /* chunk size too small */ |
21e92547 NB |
1653 | if (chunk == 0) /* rounding problem */ |
1654 | return 0; | |
34163fc7 | 1655 | |
199171a2 | 1656 | if (offset == 0) { |
a31128d2 N |
1657 | /* start bitmap on a 4K boundary with enough space for |
1658 | * the bitmap | |
1659 | */ | |
199171a2 | 1660 | bits = (size*512) / chunk + 1; |
a31128d2 N |
1661 | room = ((bits+7)/8 + sizeof(bitmap_super_t) +4095)/4096; |
1662 | room *= 8; /* convert 4K blocks to sectors */ | |
199171a2 NB |
1663 | offset = -room; |
1664 | } | |
1665 | ||
34a13953 | 1666 | sb->bitmap_offset = (int32_t)__cpu_to_le32(offset); |
34163fc7 | 1667 | |
c0c1acd6 N |
1668 | sb->feature_map = __cpu_to_le32(__le32_to_cpu(sb->feature_map) |
1669 | | MD_FEATURE_BITMAP_OFFSET); | |
29e766a5 | 1670 | memset(bms, 0, sizeof(*bms)); |
34163fc7 | 1671 | bms->magic = __cpu_to_le32(BITMAP_MAGIC); |
dcec9ee5 | 1672 | bms->version = __cpu_to_le32(major); |
3b7e9d0c LB |
1673 | uuid_from_super1(st, uuid); |
1674 | memcpy(bms->uuid, uuid, 16); | |
34163fc7 NB |
1675 | bms->chunksize = __cpu_to_le32(chunk); |
1676 | bms->daemon_sleep = __cpu_to_le32(delay); | |
f9c25f1d | 1677 | bms->sync_size = __cpu_to_le64(size); |
34163fc7 NB |
1678 | bms->write_behind = __cpu_to_le32(write_behind); |
1679 | ||
199171a2 | 1680 | *chunkp = chunk; |
34163fc7 NB |
1681 | return 1; |
1682 | } | |
1683 | ||
3da92f27 | 1684 | static void locate_bitmap1(struct supertype *st, int fd) |
34163fc7 | 1685 | { |
34163fc7 | 1686 | unsigned long long offset; |
1e0d770c NB |
1687 | struct mdp_superblock_1 *sb; |
1688 | int mustfree = 0; | |
34163fc7 | 1689 | |
3da92f27 NB |
1690 | if (!st->sb) { |
1691 | if (st->ss->load_super(st, fd, NULL)) | |
f6d75de8 | 1692 | return; /* no error I hope... */ |
1e0d770c NB |
1693 | mustfree = 1; |
1694 | } | |
3da92f27 | 1695 | sb = st->sb; |
e478dc86 | 1696 | |
1bf4e2d9 | 1697 | offset = __le64_to_cpu(sb->super_offset); |
68754bd1 | 1698 | offset += (int32_t) __le32_to_cpu(sb->bitmap_offset); |
1e0d770c | 1699 | if (mustfree) |
f6d75de8 | 1700 | free(sb); |
1bf4e2d9 | 1701 | lseek64(fd, offset<<9, 0); |
34163fc7 NB |
1702 | } |
1703 | ||
3da92f27 | 1704 | static int write_bitmap1(struct supertype *st, int fd) |
34163fc7 | 1705 | { |
3da92f27 | 1706 | struct mdp_superblock_1 *sb = st->sb; |
911cead7 | 1707 | bitmap_super_t *bms = (bitmap_super_t*)(((char*)sb)+MAX_SB_SIZE); |
34163fc7 | 1708 | int rv = 0; |
d669228f | 1709 | void *buf; |
34163fc7 | 1710 | int towrite, n; |
308340aa JS |
1711 | struct align_fd afd; |
1712 | ||
1713 | init_afd(&afd, fd); | |
34163fc7 | 1714 | |
3da92f27 | 1715 | locate_bitmap1(st, fd); |
34163fc7 | 1716 | |
d669228f JS |
1717 | if (posix_memalign(&buf, 4096, 4096)) |
1718 | return -ENOMEM; | |
1719 | ||
6416d527 | 1720 | memset(buf, 0xff, 4096); |
b2bfdfa0 | 1721 | memcpy(buf, (char *)bms, sizeof(bitmap_super_t)); |
6416d527 | 1722 | |
1bf4e2d9 NB |
1723 | towrite = __le64_to_cpu(bms->sync_size) / (__le32_to_cpu(bms->chunksize)>>9); |
1724 | towrite = (towrite+7) >> 3; /* bits to bytes */ | |
6416d527 NB |
1725 | towrite += sizeof(bitmap_super_t); |
1726 | towrite = ROUND_UP(towrite, 512); | |
34163fc7 NB |
1727 | while (towrite > 0) { |
1728 | n = towrite; | |
6416d527 NB |
1729 | if (n > 4096) |
1730 | n = 4096; | |
308340aa | 1731 | n = awrite(&afd, buf, n); |
34163fc7 NB |
1732 | if (n > 0) |
1733 | towrite -= n; | |
1734 | else | |
1735 | break; | |
6416d527 | 1736 | memset(buf, 0xff, 4096); |
34163fc7 NB |
1737 | } |
1738 | fsync(fd); | |
1739 | if (towrite) | |
1740 | rv = -2; | |
1741 | ||
d669228f | 1742 | free(buf); |
34163fc7 | 1743 | return rv; |
82d9eba6 NB |
1744 | } |
1745 | ||
3da92f27 | 1746 | static void free_super1(struct supertype *st) |
df37ffc0 | 1747 | { |
3da92f27 NB |
1748 | if (st->sb) |
1749 | free(st->sb); | |
1cc7f4fe N |
1750 | while (st->info) { |
1751 | struct devinfo *di = st->info; | |
1752 | st->info = di->next; | |
1753 | if (di->fd >= 0) | |
1754 | close(di->fd); | |
1755 | free(di); | |
1756 | } | |
3da92f27 | 1757 | st->sb = NULL; |
df37ffc0 NB |
1758 | } |
1759 | ||
0e600426 | 1760 | #ifndef MDASSEMBLE |
17f25ca6 NB |
1761 | static int validate_geometry1(struct supertype *st, int level, |
1762 | int layout, int raiddisks, | |
c21e737b | 1763 | int *chunk, unsigned long long size, |
2c514b71 NB |
1764 | char *subdev, unsigned long long *freesize, |
1765 | int verbose) | |
17f25ca6 NB |
1766 | { |
1767 | unsigned long long ldsize; | |
1768 | int fd; | |
1769 | ||
b42f577a N |
1770 | if (level == LEVEL_CONTAINER) { |
1771 | if (verbose) | |
1772 | fprintf(stderr, Name ": 1.x metadata does not support containers\n"); | |
17f25ca6 | 1773 | return 0; |
b42f577a | 1774 | } |
bb7295f1 N |
1775 | if (chunk && *chunk == UnSet) |
1776 | *chunk = DEFAULT_CHUNK; | |
1777 | ||
17f25ca6 NB |
1778 | if (!subdev) |
1779 | return 1; | |
1780 | ||
1781 | fd = open(subdev, O_RDONLY|O_EXCL, 0); | |
1782 | if (fd < 0) { | |
2c514b71 NB |
1783 | if (verbose) |
1784 | fprintf(stderr, Name ": super1.x cannot open %s: %s\n", | |
1785 | subdev, strerror(errno)); | |
17f25ca6 NB |
1786 | return 0; |
1787 | } | |
2c514b71 | 1788 | |
17f25ca6 NB |
1789 | if (!get_dev_size(fd, subdev, &ldsize)) { |
1790 | close(fd); | |
1791 | return 0; | |
1792 | } | |
1793 | close(fd); | |
1794 | ||
1795 | *freesize = avail_size1(st, ldsize >> 9); | |
1796 | return 1; | |
1797 | } | |
0e600426 | 1798 | #endif /* MDASSEMBLE */ |
17f25ca6 | 1799 | |
82d9eba6 | 1800 | struct superswitch super1 = { |
c7654afc | 1801 | #ifndef MDASSEMBLE |
82d9eba6 NB |
1802 | .examine_super = examine_super1, |
1803 | .brief_examine_super = brief_examine_super1, | |
0d726f17 | 1804 | .export_examine_super = export_examine_super1, |
82d9eba6 NB |
1805 | .detail_super = detail_super1, |
1806 | .brief_detail_super = brief_detail_super1, | |
0d726f17 | 1807 | .export_detail_super = export_detail_super1, |
111d01fc | 1808 | .write_init_super = write_init_super1, |
0e600426 N |
1809 | .validate_geometry = validate_geometry1, |
1810 | .add_to_super = add_to_super1, | |
c7654afc | 1811 | #endif |
83b6208e | 1812 | .match_home = match_home1, |
82d9eba6 NB |
1813 | .uuid_from_super = uuid_from_super1, |
1814 | .getinfo_super = getinfo_super1, | |
00bbdbda | 1815 | .container_content = container_content1, |
82d9eba6 | 1816 | .update_super = update_super1, |
82d9eba6 | 1817 | .init_super = init_super1, |
82d9eba6 | 1818 | .store_super = store_super1, |
82d9eba6 NB |
1819 | .compare_super = compare_super1, |
1820 | .load_super = load_super1, | |
1821 | .match_metadata_desc = match_metadata_desc1, | |
1822 | .avail_size = avail_size1, | |
34163fc7 NB |
1823 | .add_internal_bitmap = add_internal_bitmap1, |
1824 | .locate_bitmap = locate_bitmap1, | |
1825 | .write_bitmap = write_bitmap1, | |
df37ffc0 | 1826 | .free_super = free_super1, |
f277ce36 NB |
1827 | #if __BYTE_ORDER == BIG_ENDIAN |
1828 | .swapuuid = 0, | |
1829 | #else | |
1830 | .swapuuid = 1, | |
1831 | #endif | |
31015d57 | 1832 | .name = "1.x", |
82d9eba6 | 1833 | }; |