2 * mdadm - manage Linux "md" devices aka RAID arrays.
4 * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
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.
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.
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
22 * Email: <neilb@cse.unsw.edu.au>
24 * School of Computer Science and Engineering
25 * The University of New South Wales
32 * The version-1 superblock :
33 * All numeric fields are little-endian.
35 * total size: 256 bytes plus 2 per device.
36 * 1K allows 384 devices.
38 struct mdp_superblock_1
{
39 /* constant array information - 128 bytes */
40 __u32 magic
; /* MD_SB_MAGIC: 0xa92b4efc - little endian */
41 __u32 major_version
; /* 1 */
42 __u32 feature_map
; /* 0 for now */
43 __u32 pad0
; /* always set to 0 when writing */
45 __u8 set_uuid
[16]; /* user-space generated. */
46 char set_name
[32]; /* set and interpreted by user-space */
48 __u64 ctime
; /* lo 40 bits are seconds, top 24 are microseconds or 0*/
49 __u32 level
; /* -4 (multipath), -1 (linear), 0,1,4,5 */
50 __u32 layout
; /* only for raid5 currently */
51 __u64 size
; /* used size of component devices, in 512byte sectors */
53 __u32 chunksize
; /* in 512byte sectors */
55 __u32 bitmap_offset
; /* sectors after start of superblock that bitmap starts
56 * NOTE: signed, so bitmap can be before superblock
57 * only meaningful of feature_map[0] is set.
60 /* These are only valid with feature bit '4' */
61 __u32 new_level
; /* new level we are reshaping to */
62 __u64 reshape_position
; /* next address in array-space for reshape */
63 __u32 delta_disks
; /* change in number of raid_disks */
64 __u32 new_layout
; /* new layout */
65 __u32 new_chunk
; /* new chunk size (bytes) */
66 __u8 pad1
[128-124]; /* set to 0 when written */
68 /* constant this-device information - 64 bytes */
69 __u64 data_offset
; /* sector start of data, often 0 */
70 __u64 data_size
; /* sectors in this device that can be used for data */
71 __u64 super_offset
; /* sector start of this superblock */
72 __u64 recovery_offset
;/* sectors before this offset (from data_offset) have been recovered */
73 __u32 dev_number
; /* permanent identifier of this device - not role in raid */
74 __u32 cnt_corrected_read
; /* number of read errors that were corrected by re-writing */
75 __u8 device_uuid
[16]; /* user-space setable, ignored by kernel */
76 __u8 devflags
; /* per-device flags. Only one defined...*/
77 #define WriteMostly1 1 /* mask for writemostly flag in above */
78 __u8 pad2
[64-57]; /* set to 0 when writing */
80 /* array state information - 64 bytes */
81 __u64 utime
; /* 40 bits second, 24 btes microseconds */
82 __u64 events
; /* incremented when superblock updated */
83 __u64 resync_offset
; /* data before this offset (from data_offset) known to be in sync */
84 __u32 sb_csum
; /* checksum upto devs[max_dev] */
85 __u32 max_dev
; /* size of devs[] array to consider */
86 __u8 pad3
[64-32]; /* set to 0 when writing */
88 /* device state information. Indexed by dev_number.
90 * Note there are no per-device state flags. State information is rolled
91 * into the 'roles' value. If a device is spare or faulty, then it doesn't
92 * have a meaningful role.
94 __u16 dev_roles
[0]; /* role in array, or 0xffff for a spare, or 0xfffe for faulty */
97 struct misc_dev_info
{
101 /* feature_map bits */
102 #define MD_FEATURE_BITMAP_OFFSET 1
103 #define MD_FEATURE_RECOVERY_OFFSET 2 /* recovery_offset is present and
106 #define MD_FEATURE_RESHAPE_ACTIVE 4
108 #define MD_FEATURE_ALL (1|2|4)
111 #define offsetof(t,f) ((size_t)&(((t*)0)->f))
113 static unsigned int calc_sb_1_csum(struct mdp_superblock_1
* sb
)
115 unsigned int disk_csum
, csum
;
116 unsigned long long newcsum
;
117 int size
= sizeof(*sb
) + __le32_to_cpu(sb
->max_dev
)*2;
118 unsigned int *isuper
= (unsigned int*)sb
;
121 /* make sure I can count... */
122 if (offsetof(struct mdp_superblock_1
,data_offset
) != 128 ||
123 offsetof(struct mdp_superblock_1
, utime
) != 192 ||
124 sizeof(struct mdp_superblock_1
) != 256) {
125 fprintf(stderr
, "WARNING - superblock isn't sized correctly\n");
128 disk_csum
= sb
->sb_csum
;
131 for (i
=0; size
>=4; size
-= 4 ) {
132 newcsum
+= __le32_to_cpu(*isuper
);
137 newcsum
+= __le16_to_cpu(*(unsigned short*) isuper
);
139 csum
= (newcsum
& 0xffffffff) + (newcsum
>> 32);
140 sb
->sb_csum
= disk_csum
;
141 return __cpu_to_le32(csum
);
145 static void examine_super1(struct supertype
*st
, char *homehost
)
147 struct mdp_superblock_1
*sb
= st
->sb
;
153 int l
= homehost
? strlen(homehost
) : 0;
155 unsigned long long sb_offset
;
157 printf(" Magic : %08x\n", __le32_to_cpu(sb
->magic
));
158 printf(" Version : 1");
159 sb_offset
= __le64_to_cpu(sb
->super_offset
);
162 else if (sb_offset
<= 8)
166 printf(" Feature Map : 0x%x\n", __le32_to_cpu(sb
->feature_map
));
167 printf(" Array UUID : ");
168 for (i
=0; i
<16; i
++) {
169 if ((i
&3)==0 && i
!= 0) printf(":");
170 printf("%02x", sb
->set_uuid
[i
]);
173 printf(" Name : %.32s", sb
->set_name
);
174 if (l
> 0 && l
< 32 &&
175 sb
->set_name
[l
] == ':' &&
176 strncmp(sb
->set_name
, homehost
, l
) == 0)
177 printf(" (local to host %s)", homehost
);
179 atime
= __le64_to_cpu(sb
->ctime
) & 0xFFFFFFFFFFULL
;
180 printf(" Creation Time : %.24s\n", ctime(&atime
));
181 c
=map_num(pers
, __le32_to_cpu(sb
->level
));
182 printf(" Raid Level : %s\n", c
?c
:"-unknown-");
183 printf(" Raid Devices : %d\n", __le32_to_cpu(sb
->raid_disks
));
185 printf(" Avail Dev Size : %llu%s\n",
186 (unsigned long long)__le64_to_cpu(sb
->data_size
),
187 human_size(__le64_to_cpu(sb
->data_size
)<<9));
188 if (__le32_to_cpu(sb
->level
) >= 0) {
190 switch(__le32_to_cpu(sb
->level
)) {
191 case 1: ddsks
=1;break;
193 case 5: ddsks
= __le32_to_cpu(sb
->raid_disks
)-1; break;
194 case 6: ddsks
= __le32_to_cpu(sb
->raid_disks
)-2; break;
196 layout
= __le32_to_cpu(sb
->layout
);
197 ddsks
= __le32_to_cpu(sb
->raid_disks
)
198 / (layout
&255) / ((layout
>>8)&255);
201 printf(" Array Size : %llu%s\n",
202 ddsks
*(unsigned long long)__le64_to_cpu(sb
->size
),
203 human_size(ddsks
*__le64_to_cpu(sb
->size
)<<9));
204 if (sb
->size
!= sb
->data_size
)
205 printf(" Used Dev Size : %llu%s\n",
206 (unsigned long long)__le64_to_cpu(sb
->size
),
207 human_size(__le64_to_cpu(sb
->size
)<<9));
210 printf(" Data Offset : %llu sectors\n",
211 (unsigned long long)__le64_to_cpu(sb
->data_offset
));
212 printf(" Super Offset : %llu sectors\n",
213 (unsigned long long)__le64_to_cpu(sb
->super_offset
));
214 if (__le32_to_cpu(sb
->feature_map
) & MD_FEATURE_RECOVERY_OFFSET
)
215 printf("Recovery Offset : %llu sectors\n", (unsigned long long)__le64_to_cpu(sb
->recovery_offset
));
216 printf(" State : %s\n", (__le64_to_cpu(sb
->resync_offset
)+1)? "active":"clean");
217 printf(" Device UUID : ");
218 for (i
=0; i
<16; i
++) {
219 if ((i
&3)==0 && i
!= 0) printf(":");
220 printf("%02x", sb
->device_uuid
[i
]);
224 if (sb
->feature_map
& __cpu_to_le32(MD_FEATURE_BITMAP_OFFSET
)) {
225 printf("Internal Bitmap : %ld sectors from superblock\n",
226 (long)(int32_t)__le32_to_cpu(sb
->bitmap_offset
));
228 if (sb
->feature_map
& __le32_to_cpu(MD_FEATURE_RESHAPE_ACTIVE
)) {
229 printf(" Reshape pos'n : %llu%s\n", (unsigned long long)__le64_to_cpu(sb
->reshape_position
)/2,
230 human_size(__le64_to_cpu(sb
->reshape_position
)<<9));
231 if (__le32_to_cpu(sb
->delta_disks
)) {
232 printf(" Delta Devices : %d", __le32_to_cpu(sb
->delta_disks
));
233 if (__le32_to_cpu(sb
->delta_disks
))
234 printf(" (%d->%d)\n",
235 __le32_to_cpu(sb
->raid_disks
)-__le32_to_cpu(sb
->delta_disks
),
236 __le32_to_cpu(sb
->raid_disks
));
238 printf(" (%d->%d)\n", __le32_to_cpu(sb
->raid_disks
),
239 __le32_to_cpu(sb
->raid_disks
)+__le32_to_cpu(sb
->delta_disks
));
241 if (__le32_to_cpu(sb
->new_level
) != __le32_to_cpu(sb
->level
)) {
242 c
= map_num(pers
, __le32_to_cpu(sb
->new_level
));
243 printf(" New Level : %s\n", c
?c
:"-unknown-");
245 if (__le32_to_cpu(sb
->new_layout
) != __le32_to_cpu(sb
->layout
)) {
246 if (__le32_to_cpu(sb
->level
) == 5) {
247 c
= map_num(r5layout
, __le32_to_cpu(sb
->new_layout
));
248 printf(" New Layout : %s\n", c
?c
:"-unknown-");
250 if (__le32_to_cpu(sb
->level
) == 10) {
251 printf(" New Layout : near=%d, %s=%d\n",
252 __le32_to_cpu(sb
->new_layout
)&255,
253 (__le32_to_cpu(sb
->new_layout
)&0x10000)?"offset":"far",
254 (__le32_to_cpu(sb
->new_layout
)>>8)&255);
257 if (__le32_to_cpu(sb
->new_chunk
) != __le32_to_cpu(sb
->chunksize
))
258 printf(" New Chunksize : %dK\n", __le32_to_cpu(sb
->new_chunk
)/2);
263 if (sb
->devflags
& WriteMostly1
)
264 printf(" write-mostly");
268 atime
= __le64_to_cpu(sb
->utime
) & 0xFFFFFFFFFFULL
;
269 printf(" Update Time : %.24s\n", ctime(&atime
));
271 if (calc_sb_1_csum(sb
) == sb
->sb_csum
)
272 printf(" Checksum : %x - correct\n", __le32_to_cpu(sb
->sb_csum
));
274 printf(" Checksum : %x - expected %x\n", __le32_to_cpu(sb
->sb_csum
),
275 __le32_to_cpu(calc_sb_1_csum(sb
)));
276 printf(" Events : %llu\n", (unsigned long long)__le64_to_cpu(sb
->events
));
278 if (__le32_to_cpu(sb
->level
) == 5) {
279 c
= map_num(r5layout
, __le32_to_cpu(sb
->layout
));
280 printf(" Layout : %s\n", c
?c
:"-unknown-");
282 if (__le32_to_cpu(sb
->level
) == 10) {
283 int lo
= __le32_to_cpu(sb
->layout
);
284 printf(" Layout : near=%d, %s=%d\n",
286 (lo
&0x10000)?"offset":"far",
289 switch(__le32_to_cpu(sb
->level
)) {
295 printf(" Chunk Size : %dK\n", __le32_to_cpu(sb
->chunksize
)/2);
298 printf(" Rounding : %dK\n", __le32_to_cpu(sb
->chunksize
)/2);
303 printf(" Array Slot : %d (", __le32_to_cpu(sb
->dev_number
));
304 for (i
= __le32_to_cpu(sb
->max_dev
); i
> 0 ; i
--)
305 if (__le16_to_cpu(sb
->dev_roles
[i
-1]) != 0xffff)
307 for (d
=0; d
< i
; d
++) {
308 int role
= __le16_to_cpu(sb
->dev_roles
[d
]);
310 if (role
== 0xffff) printf("empty");
311 else if(role
== 0xfffe) printf("failed");
312 else printf("%d", role
);
315 printf(" Array State : ");
316 for (d
=0; d
<__le32_to_cpu(sb
->raid_disks
); d
++) {
320 for (i
=0; i
< __le32_to_cpu(sb
->max_dev
); i
++) {
321 int role
= __le16_to_cpu(sb
->dev_roles
[i
]);
323 if (i
== __le32_to_cpu(sb
->dev_number
))
328 if (cnt
> 1) printf("?");
329 else if (cnt
== 1 && me
) printf("U");
330 else if (cnt
== 1) printf("u");
334 for (i
=0; i
< __le32_to_cpu(sb
->max_dev
); i
++) {
335 int role
= __le16_to_cpu(sb
->dev_roles
[i
]);
339 if (faulty
) printf(" %d failed", faulty
);
344 static void brief_examine_super1(struct supertype
*st
)
346 struct mdp_superblock_1
*sb
= st
->sb
;
348 unsigned long long sb_offset
;
350 char *c
=map_num(pers
, __le32_to_cpu(sb
->level
));
352 nm
= strchr(sb
->set_name
, ':');
355 else if (sb
->set_name
[0])
360 printf("ARRAY /dev/md/%s level=%s ", nm
, c
?c
:"-unknown-");
361 sb_offset
= __le64_to_cpu(sb
->super_offset
);
363 printf("metadata=1.1 ");
364 else if (sb_offset
<= 8)
365 printf("metadata=1.2 ");
367 printf("metadata=1.0 ");
368 printf("num-devices=%d UUID=", __le32_to_cpu(sb
->raid_disks
));
369 for (i
=0; i
<16; i
++) {
370 if ((i
&3)==0 && i
!= 0) printf(":");
371 printf("%02x", sb
->set_uuid
[i
]);
374 printf(" name=%.32s", sb
->set_name
);
378 static void export_examine_super1(struct supertype
*st
)
380 struct mdp_superblock_1
*sb
= st
->sb
;
384 printf("MD_LEVEL=%s\n", map_num(pers
, __le32_to_cpu(sb
->level
)));
385 printf("MD_DEVICES=%d\n", __le32_to_cpu(sb
->raid_disks
));
387 if (sb
->set_name
[i
] == '\n' ||
388 sb
->set_name
[i
] == '\0') {
393 printf("MD_NAME=%.*s\n", len
, sb
->set_name
);
395 for (i
=0; i
<16; i
++) {
396 if ((i
&3)==0 && i
!= 0) printf(":");
397 printf("%02x", sb
->set_uuid
[i
]);
400 printf("MD_UPDATE_TIME=%llu\n",
401 __le64_to_cpu(sb
->utime
) & 0xFFFFFFFFFFULL
);
402 printf("MD_DEV_UUID=");
403 for (i
=0; i
<16; i
++) {
404 if ((i
&3)==0 && i
!= 0) printf(":");
405 printf("%02x", sb
->device_uuid
[i
]);
408 printf("MD_EVENTS=%llu\n",
409 (unsigned long long)__le64_to_cpu(sb
->events
));
412 static void detail_super1(struct supertype
*st
, char *homehost
)
414 struct mdp_superblock_1
*sb
= st
->sb
;
416 int l
= homehost
? strlen(homehost
) : 0;
418 printf(" Name : %.32s", sb
->set_name
);
419 if (l
> 0 && l
< 32 &&
420 sb
->set_name
[l
] == ':' &&
421 strncmp(sb
->set_name
, homehost
, l
) == 0)
422 printf(" (local to host %s)", homehost
);
423 printf("\n UUID : ");
424 for (i
=0; i
<16; i
++) {
425 if ((i
&3)==0 && i
!= 0) printf(":");
426 printf("%02x", sb
->set_uuid
[i
]);
428 printf("\n Events : %llu\n\n", (unsigned long long)__le64_to_cpu(sb
->events
));
431 static void brief_detail_super1(struct supertype
*st
)
433 struct mdp_superblock_1
*sb
= st
->sb
;
437 printf(" name=%.32s", sb
->set_name
);
439 for (i
=0; i
<16; i
++) {
440 if ((i
&3)==0 && i
!= 0) printf(":");
441 printf("%02x", sb
->set_uuid
[i
]);
445 static void export_detail_super1(struct supertype
*st
)
447 struct mdp_superblock_1
*sb
= st
->sb
;
452 if (sb
->set_name
[i
] == '\n' ||
453 sb
->set_name
[i
] == '\0') {
458 printf("MD_NAME=%.*s\n", len
, sb
->set_name
);
460 for (i
=0; i
<16; i
++) {
461 if ((i
&3)==0 && i
!= 0) printf(":");
462 printf("%02x", sb
->set_uuid
[i
]);
469 static int match_home1(struct supertype
*st
, char *homehost
)
471 struct mdp_superblock_1
*sb
= st
->sb
;
472 int l
= homehost
? strlen(homehost
) : 0;
474 return (l
> 0 && l
< 32 &&
475 sb
->set_name
[l
] == ':' &&
476 strncmp(sb
->set_name
, homehost
, l
) == 0);
479 static void uuid_from_super1(struct supertype
*st
, int uuid
[4])
481 struct mdp_superblock_1
*super
= st
->sb
;
482 char *cuuid
= (char*)uuid
;
485 cuuid
[i
] = super
->set_uuid
[i
];
488 static void getinfo_super1(struct supertype
*st
, struct mdinfo
*info
)
490 struct mdp_superblock_1
*sb
= st
->sb
;
495 info
->array
.major_version
= 1;
496 info
->array
.minor_version
= st
->minor_version
;
497 info
->array
.patch_version
= 0;
498 info
->array
.raid_disks
= __le32_to_cpu(sb
->raid_disks
);
499 info
->array
.level
= __le32_to_cpu(sb
->level
);
500 info
->array
.layout
= __le32_to_cpu(sb
->layout
);
501 info
->array
.md_minor
= -1;
502 info
->array
.ctime
= __le64_to_cpu(sb
->ctime
);
503 info
->array
.utime
= __le64_to_cpu(sb
->utime
);
504 info
->array
.chunk_size
= __le32_to_cpu(sb
->chunksize
)*512;
506 (__le64_to_cpu(sb
->resync_offset
) >= __le64_to_cpu(sb
->size
))
509 info
->data_offset
= __le64_to_cpu(sb
->data_offset
);
510 info
->component_size
= __le64_to_cpu(sb
->size
);
512 info
->disk
.major
= 0;
513 info
->disk
.minor
= 0;
514 info
->disk
.number
= __le32_to_cpu(sb
->dev_number
);
515 if (__le32_to_cpu(sb
->dev_number
) >= __le32_to_cpu(sb
->max_dev
) ||
516 __le32_to_cpu(sb
->max_dev
) > 512)
519 role
= __le16_to_cpu(sb
->dev_roles
[__le32_to_cpu(sb
->dev_number
)]);
521 info
->disk
.raid_disk
= -1;
524 info
->disk
.state
= 2; /* spare: ACTIVE, not sync, not faulty */
527 info
->disk
.state
= 1; /* faulty */
530 info
->disk
.state
= 6; /* active and in sync */
531 info
->disk
.raid_disk
= role
;
533 info
->events
= __le64_to_cpu(sb
->events
);
534 sprintf(info
->text_version
, "1.%d", st
->minor_version
);
535 info
->safe_mode_delay
= 200;
537 memcpy(info
->uuid
, sb
->set_uuid
, 16);
539 strncpy(info
->name
, sb
->set_name
, 32);
542 if (sb
->feature_map
& __le32_to_cpu(MD_FEATURE_RESHAPE_ACTIVE
)) {
543 info
->reshape_active
= 1;
544 info
->reshape_progress
= __le64_to_cpu(sb
->reshape_position
);
545 info
->new_level
= __le32_to_cpu(sb
->new_level
);
546 info
->delta_disks
= __le32_to_cpu(sb
->delta_disks
);
547 info
->new_layout
= __le32_to_cpu(sb
->new_layout
);
548 info
->new_chunk
= __le32_to_cpu(sb
->new_chunk
)<<9;
550 info
->reshape_active
= 0;
552 for (i
=0; i
< __le32_to_cpu(sb
->max_dev
); i
++) {
553 role
= __le16_to_cpu(sb
->dev_roles
[i
]);
554 if (/*role == 0xFFFF || */role
< info
->array
.raid_disks
)
558 info
->array
.working_disks
= working
;
561 static int update_super1(struct supertype
*st
, struct mdinfo
*info
,
563 char *devname
, int verbose
,
564 int uuid_set
, char *homehost
)
566 /* NOTE: for 'assemble' and 'force' we need to return non-zero if any change was made.
567 * For others, the return value is ignored.
570 struct mdp_superblock_1
*sb
= st
->sb
;
572 if (strcmp(update
, "force-one")==0) {
573 /* Not enough devices for a working array,
574 * so bring this one up-to-date
576 if (sb
->events
!= __cpu_to_le64(info
->events
))
578 sb
->events
= __cpu_to_le64(info
->events
);
580 if (strcmp(update
, "force-array")==0) {
581 /* Degraded array and 'force' requests to
582 * maybe need to mark it 'clean'.
584 switch(__le32_to_cpu(sb
->level
)) {
585 case 5: case 4: case 6:
586 /* need to force clean */
587 if (sb
->resync_offset
!= ~0ULL)
589 sb
->resync_offset
= ~0ULL;
592 if (strcmp(update
, "assemble")==0) {
593 int d
= info
->disk
.number
;
595 if (info
->disk
.state
== 6)
596 want
= __cpu_to_le32(info
->disk
.raid_disk
);
599 if (sb
->dev_roles
[d
] != want
) {
600 sb
->dev_roles
[d
] = want
;
604 if (strcmp(update
, "linear-grow-new") == 0) {
607 int max
= __le32_to_cpu(sb
->max_dev
);
609 for (i
=0 ; i
< max
; i
++)
610 if (__le16_to_cpu(sb
->dev_roles
[i
]) >= 0xfffe)
612 sb
->dev_number
= __cpu_to_le32(i
);
613 info
->disk
.number
= i
;
614 if (max
>= __le32_to_cpu(sb
->max_dev
))
615 sb
->max_dev
= __cpu_to_le32(max
+1);
617 if ((rfd
= open("/dev/urandom", O_RDONLY
)) < 0 ||
618 read(rfd
, sb
->device_uuid
, 16) != 16) {
619 *(__u32
*)(sb
->device_uuid
) = random();
620 *(__u32
*)(sb
->device_uuid
+4) = random();
621 *(__u32
*)(sb
->device_uuid
+8) = random();
622 *(__u32
*)(sb
->device_uuid
+12) = random();
626 __cpu_to_le16(info
->disk
.raid_disk
);
628 if (strcmp(update
, "linear-grow-update") == 0) {
629 sb
->raid_disks
= __cpu_to_le32(info
->array
.raid_disks
);
630 sb
->dev_roles
[info
->disk
.number
] =
631 __cpu_to_le16(info
->disk
.raid_disk
);
633 if (strcmp(update
, "resync") == 0) {
634 /* make sure resync happens */
635 sb
->resync_offset
= 0ULL;
637 if (strcmp(update
, "uuid") == 0) {
638 copy_uuid(sb
->set_uuid
, info
->uuid
, super1
.swapuuid
);
640 if (__le32_to_cpu(sb
->feature_map
)&MD_FEATURE_BITMAP_OFFSET
) {
641 struct bitmap_super_s
*bm
;
642 bm
= (struct bitmap_super_s
*)(st
->sb
+1024);
643 memcpy(bm
->uuid
, sb
->set_uuid
, 16);
646 if (strcmp(update
, "homehost") == 0 &&
650 c
= strchr(sb
->set_name
, ':');
652 strncpy(info
->name
, c
+1, 31 - (c
-sb
->set_name
));
654 strncpy(info
->name
, sb
->set_name
, 32);
657 if (strcmp(update
, "name") == 0) {
658 if (info
->name
[0] == 0)
659 sprintf(info
->name
, "%d", info
->array
.md_minor
);
660 memset(sb
->set_name
, 0, sizeof(sb
->set_name
));
662 strchr(info
->name
, ':') == NULL
&&
663 strlen(homehost
)+1+strlen(info
->name
) < 32) {
664 strcpy(sb
->set_name
, homehost
);
665 strcat(sb
->set_name
, ":");
666 strcat(sb
->set_name
, info
->name
);
668 strcpy(sb
->set_name
, info
->name
);
670 if (strcmp(update
, "devicesize") == 0 &&
671 __le64_to_cpu(sb
->super_offset
) <
672 __le64_to_cpu(sb
->data_offset
)) {
673 /* set data_size to device size less data_offset */
674 struct misc_dev_info
*misc
= (struct misc_dev_info
*)
675 (st
->sb
+ 1024 + 512);
676 printf("Size was %llu\n", (unsigned long long)
677 __le64_to_cpu(sb
->data_size
));
678 sb
->data_size
= __cpu_to_le64(
679 misc
->device_size
- __le64_to_cpu(sb
->data_offset
));
680 printf("Size is %llu\n", (unsigned long long)
681 __le64_to_cpu(sb
->data_size
));
683 if (strcmp(update
, "_reshape_progress")==0)
684 sb
->reshape_position
= __cpu_to_le64(info
->reshape_progress
);
686 sb
->sb_csum
= calc_sb_1_csum(sb
);
690 static int init_super1(struct supertype
*st
, mdu_array_info_t
*info
,
691 unsigned long long size
, char *name
, char *homehost
, int *uuid
)
693 struct mdp_superblock_1
*sb
;
698 posix_memalign((void**)&sb
, 512, (1024 + 512 +
699 sizeof(struct misc_dev_info
)));
704 /* zeroing superblock */
708 spares
= info
->working_disks
- info
->active_disks
;
709 if (info
->raid_disks
+ spares
> 384) {
710 fprintf(stderr
, Name
": too many devices requested: %d+%d > %d\n",
711 info
->raid_disks
, spares
, 384);
715 sb
->magic
= __cpu_to_le32(MD_SB_MAGIC
);
716 sb
->major_version
= __cpu_to_le32(1);
721 copy_uuid(sb
->set_uuid
, uuid
, super1
.swapuuid
);
723 if ((rfd
= open("/dev/urandom", O_RDONLY
)) < 0 ||
724 read(rfd
, sb
->set_uuid
, 16) != 16) {
725 *(__u32
*)(sb
->set_uuid
) = random();
726 *(__u32
*)(sb
->set_uuid
+4) = random();
727 *(__u32
*)(sb
->set_uuid
+8) = random();
728 *(__u32
*)(sb
->set_uuid
+12) = random();
730 if (rfd
>= 0) close(rfd
);
733 if (name
== NULL
|| *name
== 0) {
734 sprintf(defname
, "%d", info
->md_minor
);
737 memset(sb
->set_name
, 0, 32);
739 strchr(name
, ':')== NULL
&&
740 strlen(homehost
)+1+strlen(name
) < 32) {
741 strcpy(sb
->set_name
, homehost
);
742 strcat(sb
->set_name
, ":");
743 strcat(sb
->set_name
, name
);
745 strcpy(sb
->set_name
, name
);
747 sb
->ctime
= __cpu_to_le64((unsigned long long)time(0));
748 sb
->level
= __cpu_to_le32(info
->level
);
749 sb
->layout
= __cpu_to_le32(info
->layout
);
750 sb
->size
= __cpu_to_le64(size
*2ULL);
751 sb
->chunksize
= __cpu_to_le32(info
->chunk_size
>>9);
752 sb
->raid_disks
= __cpu_to_le32(info
->raid_disks
);
754 sb
->data_offset
= __cpu_to_le64(0);
755 sb
->data_size
= __cpu_to_le64(0);
756 sb
->super_offset
= __cpu_to_le64(0);
757 sb
->recovery_offset
= __cpu_to_le64(0);
759 sb
->utime
= sb
->ctime
;
760 sb
->events
= __cpu_to_le64(1);
761 if (info
->state
& (1<<MD_SB_CLEAN
))
762 sb
->resync_offset
= ~0ULL;
764 sb
->resync_offset
= 0;
765 sb
->max_dev
= __cpu_to_le32((1024- sizeof(struct mdp_superblock_1
))/
766 sizeof(sb
->dev_roles
[0]));
767 memset(sb
->pad3
, 0, sizeof(sb
->pad3
));
769 memset(sb
->dev_roles
, 0xff, 1024 - sizeof(struct mdp_superblock_1
));
777 mdu_disk_info_t disk
;
778 struct devinfo
*next
;
781 /* Add a device to the superblock being created */
782 static void add_to_super1(struct supertype
*st
, mdu_disk_info_t
*dk
,
783 int fd
, char *devname
)
785 struct mdp_superblock_1
*sb
= st
->sb
;
786 __u16
*rp
= sb
->dev_roles
+ dk
->number
;
787 struct devinfo
*di
, **dip
;
789 if ((dk
->state
& 6) == 6) /* active, sync */
790 *rp
= __cpu_to_le16(dk
->raid_disk
);
791 else if ((dk
->state
& ~2) == 0) /* active or idle -> spare */
796 sb
->dev_number
= __cpu_to_le32(dk
->number
);
797 sb
->sb_csum
= calc_sb_1_csum(sb
);
799 dip
= (struct devinfo
**)&st
->info
;
802 di
= malloc(sizeof(struct devinfo
));
804 di
->devname
= devname
;
811 static void locate_bitmap1(struct supertype
*st
, int fd
);
813 static int store_super1(struct supertype
*st
, int fd
)
815 struct mdp_superblock_1
*sb
= st
->sb
;
816 unsigned long long sb_offset
;
818 unsigned long long dsize
;
820 if (!get_dev_size(fd
, NULL
, &dsize
))
829 * Calculate the position of the superblock.
830 * It is always aligned to a 4K boundary and
831 * depending on minor_version, it can be:
832 * 0: At least 8K, but less than 12K, from end of device
833 * 1: At start of device
834 * 2: 4K from start of device.
836 switch(st
->minor_version
) {
840 sb_offset
&= ~(4*2-1);
854 if (sb_offset
!= __le64_to_cpu(sb
->super_offset
) &&
855 0 != __le64_to_cpu(sb
->super_offset
)
857 fprintf(stderr
, Name
": internal error - sb_offset is wrong\n");
861 if (lseek64(fd
, sb_offset
<< 9, 0)< 0LL)
864 sbsize
= sizeof(*sb
) + 2 * __le32_to_cpu(sb
->max_dev
);
865 sbsize
= (sbsize
+511)&(~511UL);
867 if (write(fd
, sb
, sbsize
) != sbsize
)
870 if (sb
->feature_map
& __cpu_to_le32(MD_FEATURE_BITMAP_OFFSET
)) {
871 struct bitmap_super_s
*bm
= (struct bitmap_super_s
*)
873 if (__le32_to_cpu(bm
->magic
) == BITMAP_MAGIC
) {
874 locate_bitmap1(st
, fd
);
875 if (write(fd
, bm
, ROUND_UP(sizeof(*bm
),512)) !=
876 ROUND_UP(sizeof(*bm
),512))
884 static int load_super1(struct supertype
*st
, int fd
, char *devname
);
886 static unsigned long choose_bm_space(unsigned long devsize
)
888 /* if the device is bigger than 8Gig, save 64k for bitmap usage,
889 * if bigger than 200Gig, save 128k
891 if (devsize
< 64*2) return 0;
892 if (devsize
- 64*2 >= 200*1024*1024*2)
894 if (devsize
- 4*2 > 8*1024*1024*2)
900 static int write_init_super1(struct supertype
*st
)
902 struct mdp_superblock_1
*sb
= st
->sb
;
903 struct supertype refst
;
908 unsigned long long dsize
, array_size
;
911 for (di
= st
->info
; di
&& ! rv
; di
= di
->next
) {
912 if (di
->disk
.state
== 1)
917 Kill(di
->devname
, 0, 1, 1);
918 Kill(di
->devname
, 0, 1, 1);
920 sb
->dev_number
= __cpu_to_le32(di
->disk
.number
);
921 if (di
->disk
.state
& (1<<MD_DISK_WRITEMOSTLY
))
922 sb
->devflags
|= __cpu_to_le32(WriteMostly1
);
924 if ((rfd
= open("/dev/urandom", O_RDONLY
)) < 0 ||
925 read(rfd
, sb
->device_uuid
, 16) != 16) {
926 *(__u32
*)(sb
->device_uuid
) = random();
927 *(__u32
*)(sb
->device_uuid
+4) = random();
928 *(__u32
*)(sb
->device_uuid
+8) = random();
929 *(__u32
*)(sb
->device_uuid
+12) = random();
931 if (rfd
>= 0) close(rfd
);
936 if (load_super1(&refst
, di
->fd
, NULL
)==0) {
937 struct mdp_superblock_1
*refsb
= refst
.sb
;
939 memcpy(sb
->device_uuid
, refsb
->device_uuid
, 16);
940 if (memcmp(sb
->set_uuid
, refsb
->set_uuid
, 16)==0) {
941 /* same array, so preserve events and
943 sb
->events
= refsb
->events
;
944 /* bugs in 2.6.17 and earlier mean the
945 * dev_number chosen in Manage must be preserved
947 if (get_linux_version() >= 2006018)
948 sb
->dev_number
= refsb
->dev_number
;
953 if (!get_dev_size(di
->fd
, NULL
, &dsize
))
964 * Calculate the position of the superblock.
965 * It is always aligned to a 4K boundary and
966 * depending on minor_version, it can be:
967 * 0: At least 8K, but less than 12K, from end of device
968 * 1: At start of device
969 * 2: 4K from start of device.
970 * Depending on the array size, we might leave extra space
973 array_size
= __le64_to_cpu(sb
->size
);
974 /* work out how much space we left for a bitmap */
975 bm_space
= choose_bm_space(array_size
);
977 switch(st
->minor_version
) {
981 sb_offset
&= ~(4*2-1);
982 sb
->super_offset
= __cpu_to_le64(sb_offset
);
983 sb
->data_offset
= __cpu_to_le64(0);
984 if (sb_offset
- bm_space
< array_size
)
985 bm_space
= sb_offset
- array_size
;
986 sb
->data_size
= __cpu_to_le64(sb_offset
- bm_space
);
989 sb
->super_offset
= __cpu_to_le64(0);
990 if (4*2 + bm_space
+ __le64_to_cpu(sb
->size
) > dsize
)
991 bm_space
= dsize
- __le64_to_cpu(sb
->size
) -4*2;
992 sb
->data_offset
= __cpu_to_le64(bm_space
+ 4*2);
993 sb
->data_size
= __cpu_to_le64(dsize
- bm_space
- 4*2);
997 sb
->super_offset
= __cpu_to_le64(4*2);
998 if (4*2 + 4*2 + bm_space
+ __le64_to_cpu(sb
->size
)
1000 bm_space
= dsize
- __le64_to_cpu(sb
->size
)
1002 sb
->data_offset
= __cpu_to_le64(4*2 + 4*2 + bm_space
);
1003 sb
->data_size
= __cpu_to_le64(dsize
- 4*2 - 4*2
1011 sb
->sb_csum
= calc_sb_1_csum(sb
);
1012 rv
= store_super1(st
, di
->fd
);
1015 Name
": failed to write superblock to %s\n",
1018 if (rv
== 0 && (__le32_to_cpu(sb
->feature_map
) & 1))
1019 rv
= st
->ss
->write_bitmap(st
, di
->fd
);
1027 static int compare_super1(struct supertype
*st
, struct supertype
*tst
)
1031 * 0 same, or first was empty, and second was copied
1032 * 1 second had wrong number
1034 * 3 wrong other info
1036 struct mdp_superblock_1
*first
= st
->sb
;
1037 struct mdp_superblock_1
*second
= tst
->sb
;
1039 if (second
->magic
!= __cpu_to_le32(MD_SB_MAGIC
))
1041 if (second
->major_version
!= __cpu_to_le32(1))
1045 posix_memalign((void**)&first
, 512,
1047 sizeof(struct misc_dev_info
));
1048 memcpy(first
, second
, 1024 + 512 +
1049 sizeof(struct misc_dev_info
));
1053 if (memcmp(first
->set_uuid
, second
->set_uuid
, 16)!= 0)
1056 if (first
->ctime
!= second
->ctime
||
1057 first
->level
!= second
->level
||
1058 first
->layout
!= second
->layout
||
1059 first
->size
!= second
->size
||
1060 first
->chunksize
!= second
->chunksize
||
1061 first
->raid_disks
!= second
->raid_disks
)
1066 static void free_super1(struct supertype
*st
);
1068 static int load_super1(struct supertype
*st
, int fd
, char *devname
)
1070 unsigned long long dsize
;
1071 unsigned long long sb_offset
;
1072 struct mdp_superblock_1
*super
;
1074 struct bitmap_super_s
*bsb
;
1075 struct misc_dev_info
*misc
;
1079 if (st
->subarray
[0])
1082 if (st
->ss
== NULL
|| st
->minor_version
== -1) {
1084 struct supertype tst
;
1085 __u64 bestctime
= 0;
1086 /* guess... choose latest ctime */
1087 memset(&tst
, 0, sizeof(tst
));
1089 for (tst
.minor_version
= 0; tst
.minor_version
<= 2 ; tst
.minor_version
++) {
1090 switch(load_super1(&tst
, fd
, devname
)) {
1091 case 0: super
= tst
.sb
;
1092 if (bestvers
== -1 ||
1093 bestctime
< __le64_to_cpu(super
->ctime
)) {
1094 bestvers
= tst
.minor_version
;
1095 bestctime
= __le64_to_cpu(super
->ctime
);
1100 case 1: return 1; /*bad device */
1101 case 2: break; /* bad, try next */
1104 if (bestvers
!= -1) {
1106 tst
.minor_version
= bestvers
;
1109 rv
= load_super1(&tst
, fd
, devname
);
1116 if (!get_dev_size(fd
, devname
, &dsize
))
1122 fprintf(stderr
, Name
": %s is too small for md: size is %llu sectors.\n",
1128 * Calculate the position of the superblock.
1129 * It is always aligned to a 4K boundary and
1130 * depending on minor_version, it can be:
1131 * 0: At least 8K, but less than 12K, from end of device
1132 * 1: At start of device
1133 * 2: 4K from start of device.
1135 switch(st
->minor_version
) {
1139 sb_offset
&= ~(4*2-1);
1151 ioctl(fd
, BLKFLSBUF
, 0); /* make sure we read current data */
1154 if (lseek64(fd
, sb_offset
<< 9, 0)< 0LL) {
1156 fprintf(stderr
, Name
": Cannot seek to superblock on %s: %s\n",
1157 devname
, strerror(errno
));
1161 posix_memalign((void**)&super
, 512,
1163 sizeof(struct misc_dev_info
));
1165 if (read(fd
, super
, 1024) != 1024) {
1167 fprintf(stderr
, Name
": Cannot read superblock on %s\n",
1173 if (__le32_to_cpu(super
->magic
) != MD_SB_MAGIC
) {
1175 fprintf(stderr
, Name
": No super block found on %s (Expected magic %08x, got %08x)\n",
1176 devname
, MD_SB_MAGIC
, __le32_to_cpu(super
->magic
));
1181 if (__le32_to_cpu(super
->major_version
) != 1) {
1183 fprintf(stderr
, Name
": Cannot interpret superblock on %s - version is %d\n",
1184 devname
, __le32_to_cpu(super
->major_version
));
1188 if (__le64_to_cpu(super
->super_offset
) != sb_offset
) {
1190 fprintf(stderr
, Name
": No superblock found on %s (super_offset is wrong)\n",
1197 bsb
= (struct bitmap_super_s
*)(((char*)super
)+1024);
1199 misc
= (struct misc_dev_info
*) (((char*)super
)+1024+512);
1200 misc
->device_size
= dsize
;
1202 /* Now check on the bitmap superblock */
1203 if ((__le32_to_cpu(super
->feature_map
)&MD_FEATURE_BITMAP_OFFSET
) == 0)
1205 /* Read the bitmap superblock and make sure it looks
1206 * valid. If it doesn't clear the bit. An --assemble --force
1207 * should get that written out.
1209 locate_bitmap1(st
, fd
);
1210 if (read(fd
, ((char*)super
)+1024, 512)
1214 uuid_from_super1(st
, uuid
);
1215 if (__le32_to_cpu(bsb
->magic
) != BITMAP_MAGIC
||
1216 memcmp(bsb
->uuid
, uuid
, 16) != 0)
1221 super
->feature_map
= __cpu_to_le32(__le32_to_cpu(super
->feature_map
) & ~1);
1226 static struct supertype
*match_metadata_desc1(char *arg
)
1228 struct supertype
*st
= malloc(sizeof(*st
));
1231 memset(st
, 0, sizeof(*st
));
1235 /* leading zeros can be safely ignored. --detail generates them. */
1238 if (strcmp(arg
, "1.0") == 0 ||
1239 strcmp(arg
, "1.00") == 0) {
1240 st
->minor_version
= 0;
1243 if (strcmp(arg
, "1.1") == 0 ||
1244 strcmp(arg
, "1.01") == 0) {
1245 st
->minor_version
= 1;
1248 if (strcmp(arg
, "1.2") == 0 ||
1249 strcmp(arg
, "1.02") == 0) {
1250 st
->minor_version
= 2;
1253 if (strcmp(arg
, "1") == 0 ||
1254 strcmp(arg
, "default") == 0) {
1255 st
->minor_version
= -1;
1263 /* find available size on device with this devsize, using
1264 * superblock type st, and reserving 'reserve' sectors for
1267 static __u64
avail_size1(struct supertype
*st
, __u64 devsize
)
1272 devsize
-= choose_bm_space(devsize
);
1274 switch(st
->minor_version
) {
1275 case -1: /* no specified. Now time to set default */
1276 st
->minor_version
= 0;
1280 return ((devsize
- 8*2 ) & ~(4*2-1));
1282 /* at start, 4K for superblock and possible bitmap */
1283 return devsize
- 4*2;
1285 /* 4k from start, 4K for superblock and possible bitmap */
1286 return devsize
- (4+4)*2;
1292 add_internal_bitmap1(struct supertype
*st
,
1293 int *chunkp
, int delay
, int write_behind
,
1294 unsigned long long size
,
1295 int may_change
, int major
)
1298 * If not may_change, then this is a 'Grow', and the bitmap
1299 * must fit after the superblock.
1300 * If may_change, then this is create, and we can put the bitmap
1301 * before the superblock if we like, or may move the start.
1302 * If !may_change, the bitmap MUST live at offset of 1K, until
1303 * we get a sysfs interface.
1305 * size is in sectors, chunk is in bytes !!!
1308 unsigned long long bits
;
1309 unsigned long long max_bits
;
1310 unsigned long long min_chunk
;
1312 int chunk
= *chunkp
;
1314 struct mdp_superblock_1
*sb
= st
->sb
;
1315 bitmap_super_t
*bms
= (bitmap_super_t
*)(((char*)sb
) + 1024);
1317 switch(st
->minor_version
) {
1319 /* either 3K after the superblock, or some amount of space
1323 /* We are creating array, so we *know* how much room has
1327 room
= choose_bm_space(__le64_to_cpu(sb
->size
));
1329 /* make it 3K after the superblock */
1334 room
= __le64_to_cpu(sb
->super_offset
)
1335 - __le64_to_cpu(sb
->data_offset
)
1336 - __le64_to_cpu(sb
->data_size
);
1337 /* remove '1 ||' when we can set offset via sysfs */
1338 if (1 || (room
< 3*2 &&
1339 __le32_to_cpu(sb
->max_dev
) <= 384)) {
1343 offset
= 0; /* means movable offset */
1348 case 2: /* between superblock and data */
1351 room
= choose_bm_space(__le64_to_cpu(sb
->size
));
1353 room
= __le64_to_cpu(sb
->data_offset
)
1354 - __le64_to_cpu(sb
->super_offset
);
1355 if (1 || __le32_to_cpu(sb
->max_dev
) <= 384) {
1368 if (chunk
== UnSet
&& room
> 128*2)
1369 /* Limit to 128K of bitmap when chunk size not requested */
1372 max_bits
= (room
* 512 - sizeof(bitmap_super_t
)) * 8;
1374 min_chunk
= 4096; /* sub-page chunks don't work yet.. */
1375 bits
= (size
*512)/min_chunk
+1;
1376 while (bits
> max_bits
) {
1382 else if (chunk
< min_chunk
)
1383 return 0; /* chunk size too small */
1384 if (chunk
== 0) /* rounding problem */
1388 bits
= (size
*512) / chunk
+ 1;
1389 room
= ((bits
+7)/8 + sizeof(bitmap_super_t
) +511)/512;
1393 sb
->bitmap_offset
= __cpu_to_le32(offset
);
1395 sb
->feature_map
= __cpu_to_le32(__le32_to_cpu(sb
->feature_map
) | 1);
1396 memset(bms
, 0, sizeof(*bms
));
1397 bms
->magic
= __cpu_to_le32(BITMAP_MAGIC
);
1398 bms
->version
= __cpu_to_le32(major
);
1399 uuid_from_super1(st
, (int*)bms
->uuid
);
1400 bms
->chunksize
= __cpu_to_le32(chunk
);
1401 bms
->daemon_sleep
= __cpu_to_le32(delay
);
1402 bms
->sync_size
= __cpu_to_le64(size
);
1403 bms
->write_behind
= __cpu_to_le32(write_behind
);
1410 static void locate_bitmap1(struct supertype
*st
, int fd
)
1412 unsigned long long offset
;
1413 struct mdp_superblock_1
*sb
;
1417 if (st
->ss
->load_super(st
, fd
, NULL
))
1418 return; /* no error I hope... */
1423 offset
= __le64_to_cpu(sb
->super_offset
);
1424 offset
+= (int32_t) __le32_to_cpu(sb
->bitmap_offset
);
1427 lseek64(fd
, offset
<<9, 0);
1430 static int write_bitmap1(struct supertype
*st
, int fd
)
1432 struct mdp_superblock_1
*sb
= st
->sb
;
1433 bitmap_super_t
*bms
= (bitmap_super_t
*)(((char*)sb
)+1024);
1437 char abuf
[4096+512];
1438 char *buf
= (char*)(((long)(abuf
+512))&~511UL);
1440 locate_bitmap1(st
, fd
);
1442 memset(buf
, 0xff, 4096);
1443 memcpy(buf
, ((char*)sb
)+1024, sizeof(bitmap_super_t
));
1445 towrite
= __le64_to_cpu(bms
->sync_size
) / (__le32_to_cpu(bms
->chunksize
)>>9);
1446 towrite
= (towrite
+7) >> 3; /* bits to bytes */
1447 towrite
+= sizeof(bitmap_super_t
);
1448 towrite
= ROUND_UP(towrite
, 512);
1449 while (towrite
> 0) {
1453 n
= write(fd
, buf
, n
);
1458 memset(buf
, 0xff, 4096);
1467 static void free_super1(struct supertype
*st
)
1475 static int validate_geometry1(struct supertype
*st
, int level
,
1476 int layout
, int raiddisks
,
1477 int chunk
, unsigned long long size
,
1478 char *subdev
, unsigned long long *freesize
,
1481 unsigned long long ldsize
;
1484 if (level
== LEVEL_CONTAINER
)
1489 fd
= open(subdev
, O_RDONLY
|O_EXCL
, 0);
1492 fprintf(stderr
, Name
": super1.x cannot open %s: %s\n",
1493 subdev
, strerror(errno
));
1497 if (!get_dev_size(fd
, subdev
, &ldsize
)) {
1503 *freesize
= avail_size1(st
, ldsize
>> 9);
1506 #endif /* MDASSEMBLE */
1508 struct superswitch super1
= {
1510 .examine_super
= examine_super1
,
1511 .brief_examine_super
= brief_examine_super1
,
1512 .export_examine_super
= export_examine_super1
,
1513 .detail_super
= detail_super1
,
1514 .brief_detail_super
= brief_detail_super1
,
1515 .export_detail_super
= export_detail_super1
,
1516 .write_init_super
= write_init_super1
,
1517 .validate_geometry
= validate_geometry1
,
1518 .add_to_super
= add_to_super1
,
1520 .match_home
= match_home1
,
1521 .uuid_from_super
= uuid_from_super1
,
1522 .getinfo_super
= getinfo_super1
,
1523 .update_super
= update_super1
,
1524 .init_super
= init_super1
,
1525 .store_super
= store_super1
,
1526 .compare_super
= compare_super1
,
1527 .load_super
= load_super1
,
1528 .match_metadata_desc
= match_metadata_desc1
,
1529 .avail_size
= avail_size1
,
1530 .add_internal_bitmap
= add_internal_bitmap1
,
1531 .locate_bitmap
= locate_bitmap1
,
1532 .write_bitmap
= write_bitmap1
,
1533 .free_super
= free_super1
,
1534 #if __BYTE_ORDER == BIG_ENDIAN