/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2001-2006 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2001-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Author: Neil Brown
- * Email: <neilb@cse.unsw.edu.au>
- * Paper: Neil Brown
- * School of Computer Science and Engineering
- * The University of New South Wales
- * Sydney, 2052
- * Australia
+ * Email: <neilb@suse.de>
*/
#define HAVE_STDINT_H 1
* - initialising a new superblock
* - printing the superblock for --examine
* - printing part of the superblock for --detail
- * .. other stuff
+ * .. other stuff
*/
}
-void super0_swap_endian(struct mdp_superblock_s *sb)
+static void super0_swap_endian(struct mdp_superblock_s *sb)
{
/* as super0 superblocks are host-endian, it is sometimes
- * useful to be able to swap the endianness
+ * useful to be able to swap the endianness
* as (almost) everything is u32's we byte-swap every 4byte
* number.
* We then also have to swap the events_hi and events_lo
#ifndef MDASSEMBLE
-static void examine_super0(void *sbv, char *homehost)
+static void examine_super0(struct supertype *st, char *homehost)
{
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
time_t atime;
int d;
+ int delta_extra = 0;
char *c;
printf(" Magic : %08x\n", sb->md_magic);
- printf(" Version : %02d.%02d.%02d\n", sb->major_version, sb->minor_version,
+ printf(" Version : %d.%02d.%02d\n", sb->major_version, sb->minor_version,
sb->patch_version);
if (sb->minor_version >= 90) {
printf(" UUID : %08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
printf(" Reshape pos'n : %llu%s\n", (unsigned long long)sb->reshape_position/2, human_size((long long)sb->reshape_position<<9));
if (sb->delta_disks) {
printf(" Delta Devices : %d", sb->delta_disks);
- if (sb->delta_disks)
- printf(" (%d->%d)\n", sb->raid_disks-sb->delta_disks, sb->raid_disks);
- else
- printf(" (%d->%d)\n", sb->raid_disks, sb->raid_disks+sb->delta_disks);
+ printf(" (%d->%d)\n", sb->raid_disks-sb->delta_disks, sb->raid_disks);
+ if (((int)sb->delta_disks) < 0)
+ delta_extra = - sb->delta_disks;
}
if (sb->new_level != sb->level) {
c = map_num(pers, sb->new_level);
c = map_num(r5layout, sb->new_layout);
printf(" New Layout : %s\n", c?c:"-unknown-");
}
+ if (sb->level == 6) {
+ c = map_num(r6layout, sb->new_layout);
+ printf(" New Layout : %s\n", c?c:"-unknown-");
+ }
if (sb->level == 10) {
printf(" New Layout : near=%d, %s=%d\n",
sb->new_layout&255,
printf(" Checksum : %x - correct\n", sb->sb_csum);
else
printf(" Checksum : %x - expected %lx\n", sb->sb_csum, calc_sb0_csum(sb));
- printf(" Events : %d.%d\n", sb->events_hi, sb->events_lo);
+ printf(" Events : %llu\n",
+ ((unsigned long long)sb->events_hi << 32)
+ + sb->events_lo);
printf("\n");
if (sb->level == 5) {
c = map_num(r5layout, sb->layout);
printf(" Layout : %s\n", c?c:"-unknown-");
}
+ if (sb->level == 6) {
+ c = map_num(r6layout, sb->layout);
+ printf(" Layout : %s\n", c?c:"-unknown-");
+ }
if (sb->level == 10) {
- printf(" Layout : near=%d, %s=%d\n",
- sb->layout&255,
- (sb->layout&0x10000)?"offset":"far",
- (sb->layout>>8)&255);
+ printf(" Layout :");
+ print_r10_layout(sb->layout);
+ printf("\n");
}
switch(sb->level) {
case 0:
}
printf("\n");
printf(" Number Major Minor RaidDevice State\n");
- for (d= -1; d<(signed int)(sb->raid_disks+sb->spare_disks); d++) {
+ for (d= -1; d<(signed int)(sb->raid_disks+delta_extra + sb->spare_disks); d++) {
mdp_disk_t *dp;
char *dv;
char nb[5];
}
}
-static void brief_examine_super0(void *sbv)
+static void brief_examine_super0(struct supertype *st, int verbose)
{
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
char *c=map_num(pers, sb->level);
char devname[20];
sprintf(devname, "/dev/md%d", sb->md_minor);
- printf("ARRAY %s level=%s num-devices=%d UUID=",
- devname,
- c?c:"-unknown-", sb->raid_disks);
+ if (verbose) {
+ printf("ARRAY %s level=%s num-devices=%d",
+ devname,
+ c?c:"-unknown-", sb->raid_disks);
+ } else
+ printf("ARRAY %s", devname);
+
if (sb->minor_version >= 90)
- printf("%08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
+ printf(" UUID=%08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
sb->set_uuid2, sb->set_uuid3);
else
- printf("%08x", sb->set_uuid0);
+ printf(" UUID=%08x", sb->set_uuid0);
printf("\n");
}
-static void detail_super0(void *sbv, char *homehost)
+static void export_examine_super0(struct supertype *st)
+{
+ mdp_super_t *sb = st->sb;
+
+ printf("MD_LEVEL=%s\n", map_num(pers, sb->level));
+ printf("MD_DEVICES=%d\n", sb->raid_disks);
+ if (sb->minor_version >= 90)
+ printf("MD_UUID=%08x:%08x:%08x:%08x\n",
+ sb->set_uuid0, sb->set_uuid1,
+ sb->set_uuid2, sb->set_uuid3);
+ else
+ printf("MD_UUID=%08x\n", sb->set_uuid0);
+ printf("MD_UPDATE_TIME=%llu\n",
+ __le64_to_cpu(sb->ctime) & 0xFFFFFFFFFFULL);
+ printf("MD_EVENTS=%llu\n",
+ ((unsigned long long)sb->events_hi << 32)
+ + sb->events_lo);
+}
+
+static void detail_super0(struct supertype *st, char *homehost)
{
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
printf(" UUID : ");
if (sb->minor_version >= 90)
printf("%08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
printf("\n Events : %d.%d\n\n", sb->events_hi, sb->events_lo);
}
-static void brief_detail_super0(void *sbv)
+static void brief_detail_super0(struct supertype *st)
{
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
printf(" UUID=");
if (sb->minor_version >= 90)
printf("%08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
else
printf("%08x", sb->set_uuid0);
}
-
-static void export_super0(void *sbv)
-{
- mdp_super_t *sb = sbv;
- printf("MD_UUID=");
- if (sb->minor_version >= 90)
- printf("%08x:%08x:%08x:%08x", sb->set_uuid0, sb->set_uuid1,
- sb->set_uuid2, sb->set_uuid3);
- else
- printf("%08x", sb->set_uuid0);
- printf("\n");
-}
#endif
-static int match_home0(void *sbv, char *homehost)
+static int match_home0(struct supertype *st, char *homehost)
{
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
char buf[20];
- char *hash = sha1_buffer(homehost,
- strlen(homehost),
- buf);
+ char *hash;
+
+ if (!homehost)
+ return 0;
+ hash = sha1_buffer(homehost,
+ strlen(homehost),
+ buf);
return (memcmp(&sb->set_uuid2, hash, 8)==0);
}
-static void uuid_from_super0(int uuid[4], void * sbv)
+static void uuid_from_super0(struct supertype *st, int uuid[4])
{
- mdp_super_t *super = sbv;
+ mdp_super_t *super = st->sb;
uuid[0] = super->set_uuid0;
if (super->minor_version >= 90) {
uuid[1] = super->set_uuid1;
}
}
-static void getinfo_super0(struct mdinfo *info, void *sbv)
+static void getinfo_super0(struct supertype *st, struct mdinfo *info)
{
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
int working = 0;
int i;
info->events = md_event(sb);
info->data_offset = 0;
- uuid_from_super0(info->uuid, sbv);
+ sprintf(info->text_version, "0.%d", sb->minor_version);
+ info->safe_mode_delay = 200;
+
+ uuid_from_super0(st, info->uuid);
if (sb->minor_version > 90 && (sb->reshape_position+1) != 0) {
info->reshape_active = 1;
info->delta_disks = sb->delta_disks;
info->new_layout = sb->new_layout;
info->new_chunk = sb->new_chunk;
+ if (info->delta_disks < 0)
+ info->array.raid_disks -= info->delta_disks;
} else
info->reshape_active = 0;
}
-static int update_super0(struct mdinfo *info, void *sbv, char *update,
+static int update_super0(struct supertype *st, struct mdinfo *info,
+ char *update,
char *devname, int verbose,
int uuid_set, char *homehost)
{
* For others, the return value is ignored.
*/
int rv = 0;
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
if (strcmp(update, "sparc2.2")==0 ) {
/* 2.2 sparc put the events in the wrong place
* So we copy the tail of the superblock
if (strcmp(update, "summaries") == 0) {
int i;
/* set nr_disks, active_disks, working_disks,
- * failed_disks, spare_disks based on disks[]
+ * failed_disks, spare_disks based on disks[]
* array in superblock.
* Also make sure extra slots aren't 'failed'
*/
sb->nr_disks = sb->active_disks =
sb->working_disks = sb->failed_disks =
sb->spare_disks = 0;
- for (i=0; i < MD_SB_DISKS ; i++)
+ for (i=0; i < MD_SB_DISKS ; i++)
if (sb->disks[i].major ||
sb->disks[i].minor) {
int state = sb->disks[i].state;
if (strcmp(update, "assemble")==0) {
int d = info->disk.number;
int wonly = sb->disks[d].state & (1<<MD_DISK_WRITEMOSTLY);
- if ((sb->disks[d].state & ~(1<<MD_DISK_WRITEMOSTLY))
+ int mask = (1<<MD_DISK_WRITEMOSTLY);
+ int add = 0;
+ if (sb->minor_version >= 91)
+ /* During reshape we don't insist on everything
+ * being marked 'sync'
+ */
+ add = (1<<MD_DISK_SYNC);
+ if (((sb->disks[d].state & ~mask) | add)
!= info->disk.state) {
sb->disks[d].state = info->disk.state | wonly;
rv = 1;
}
}
- if (strcmp(update, "grow") == 0) {
+ if (strcmp(update, "linear-grow-new") == 0) {
+ memset(&sb->disks[info->disk.number], 0, sizeof(sb->disks[0]));
+ sb->disks[info->disk.number].number = info->disk.number;
+ sb->disks[info->disk.number].major = info->disk.major;
+ sb->disks[info->disk.number].minor = info->disk.minor;
+ sb->disks[info->disk.number].raid_disk = info->disk.raid_disk;
+ sb->disks[info->disk.number].state = info->disk.state;
+ sb->this_disk = sb->disks[info->disk.number];
+ }
+ if (strcmp(update, "linear-grow-update") == 0) {
sb->raid_disks = info->array.raid_disks;
sb->nr_disks = info->array.nr_disks;
sb->active_disks = info->array.active_disks;
sb->disks[info->disk.number].minor = info->disk.minor;
sb->disks[info->disk.number].raid_disk = info->disk.raid_disk;
sb->disks[info->disk.number].state = info->disk.state;
- if (sb->this_disk.number == info->disk.number)
- sb->this_disk = sb->disks[info->disk.number];
}
if (strcmp(update, "resync") == 0) {
/* make sure resync happens */
if (sb->state & (1<<MD_SB_BITMAP_PRESENT)) {
struct bitmap_super_s *bm;
bm = (struct bitmap_super_s*)(sb+1);
- uuid_from_super0((int*)bm->uuid, sbv);
+ uuid_from_super0(st, (int*)bm->uuid);
}
}
if (strcmp(update, "_reshape_progress")==0)
*/
-static int init_super0(struct supertype *st, void **sbp, mdu_array_info_t *info,
+static int init_super0(struct supertype *st, mdu_array_info_t *info,
unsigned long long size, char *ignored_name, char *homehost,
int *uuid)
{
- mdp_super_t *sb = malloc(MD_SB_BYTES + sizeof(bitmap_super_t));
+ mdp_super_t *sb;
int spares;
+
+ if (posix_memalign((void**)&sb, 4096,
+ MD_SB_BYTES + ROUND_UP(sizeof(bitmap_super_t), 4096)) != 0) {
+ fprintf(stderr, Name ": %s could not allocate superblock\n", __func__);
+ return 0;
+ }
memset(sb, 0, MD_SB_BYTES + sizeof(bitmap_super_t));
- if (info->major_version == -1) {
+ st->sb = sb;
+ if (info == NULL) {
/* zeroing the superblock */
- *sbp = sb;
return 0;
}
sb->layout = info->layout;
sb->chunk_size = info->chunk_size;
- *sbp = sb;
return 1;
}
+struct devinfo {
+ int fd;
+ char *devname;
+ mdu_disk_info_t disk;
+ struct devinfo *next;
+};
+
+#ifndef MDASSEMBLE
/* Add a device to the superblock being created */
-static void add_to_super0(void *sbv, mdu_disk_info_t *dinfo)
+static int add_to_super0(struct supertype *st, mdu_disk_info_t *dinfo,
+ int fd, char *devname)
{
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
mdp_disk_t *dk = &sb->disks[dinfo->number];
+ struct devinfo *di, **dip;
dk->number = dinfo->number;
dk->major = dinfo->major;
dk->minor = dinfo->minor;
dk->raid_disk = dinfo->raid_disk;
dk->state = dinfo->state;
+
+ sb->this_disk = sb->disks[dinfo->number];
+ sb->sb_csum = calc_sb0_csum(sb);
+
+ dip = (struct devinfo **)&st->info;
+ while (*dip)
+ dip = &(*dip)->next;
+ di = malloc(sizeof(struct devinfo));
+ di->fd = fd;
+ di->devname = devname;
+ di->disk = *dinfo;
+ di->next = NULL;
+ *dip = di;
+
+ return 0;
}
+#endif
-static int store_super0(struct supertype *st, int fd, void *sbv)
+static int store_super0(struct supertype *st, int fd)
{
unsigned long long dsize;
unsigned long long offset;
- mdp_super_t *super = sbv;
+ mdp_super_t *super = st->sb;
if (!get_dev_size(fd, NULL, &dsize))
return 1;
- if (dsize < MD_RESERVED_SECTORS*2*512)
+ if (dsize < MD_RESERVED_SECTORS*512)
return 2;
offset = MD_NEW_SIZE_SECTORS(dsize>>9);
if (super->state & (1<<MD_SB_BITMAP_PRESENT)) {
struct bitmap_super_s * bm = (struct bitmap_super_s*)(super+1);
if (__le32_to_cpu(bm->magic) == BITMAP_MAGIC)
- if (write(fd, bm, sizeof(*bm)) != sizeof(*bm))
+ if (write(fd, bm, ROUND_UP(sizeof(*bm),4096)) !=
+ ROUND_UP(sizeof(*bm),4096))
return 5;
}
return 0;
}
-static int write_init_super0(struct supertype *st, void *sbv, mdu_disk_info_t *dinfo, char *devname)
+#ifndef MDASSEMBLE
+static int write_init_super0(struct supertype *st)
{
- mdp_super_t *sb = sbv;
- int fd = open(devname, O_RDWR|O_EXCL);
- int rv;
+ mdp_super_t *sb = st->sb;
+ int rv = 0;
+ struct devinfo *di;
- if (fd < 0) {
- fprintf(stderr, Name ": Failed to open %s to write superblock\n", devname);
- return -1;
- }
+ for (di = st->info ; di && ! rv ; di = di->next) {
- sb->disks[dinfo->number].state &= ~(1<<MD_DISK_FAULTY);
+ if (di->disk.state == 1)
+ continue;
+ if (di->fd == -1)
+ continue;
+ Kill(di->devname, 0, 1, 1);
+ Kill(di->devname, 0, 1, 1);
- sb->this_disk = sb->disks[dinfo->number];
- sb->sb_csum = calc_sb0_csum(sb);
- rv = store_super0(st, fd, sb);
+ sb->disks[di->disk.number].state &= ~(1<<MD_DISK_FAULTY);
- if (rv == 0 && (sb->state & (1<<MD_SB_BITMAP_PRESENT)))
- rv = st->ss->write_bitmap(st, fd, sbv);
+ sb->this_disk = sb->disks[di->disk.number];
+ sb->sb_csum = calc_sb0_csum(sb);
+ rv = store_super0(st, di->fd);
- close(fd);
- if (rv)
- fprintf(stderr, Name ": failed to write superblock to %s\n", devname);
+ if (rv == 0 && (sb->state & (1<<MD_SB_BITMAP_PRESENT)))
+ rv = st->ss->write_bitmap(st, di->fd);
+
+ if (rv)
+ fprintf(stderr,
+ Name ": failed to write superblock to %s\n",
+ di->devname);
+ close(di->fd);
+ di->fd = -1;
+ }
return rv;
}
+#endif
-static int compare_super0(void **firstp, void *secondv)
+static int compare_super0(struct supertype *st, struct supertype *tst)
{
/*
* return:
* 2 wrong uuid
* 3 wrong other info
*/
- mdp_super_t *first = *firstp;
- mdp_super_t *second = secondv;
-
+ mdp_super_t *first = st->sb;
+ mdp_super_t *second = tst->sb;
int uuid1[4], uuid2[4];
+
if (second->md_magic != MD_SB_MAGIC)
return 1;
if (!first) {
- first = malloc(MD_SB_BYTES + sizeof(struct bitmap_super_s));
+ if (posix_memalign((void**)&first, 4096,
+ MD_SB_BYTES +
+ ROUND_UP(sizeof(struct bitmap_super_s), 4096)) != 0) {
+ fprintf(stderr, Name
+ ": %s could not allocate superblock\n", __func__);
+ return 1;
+ }
memcpy(first, second, MD_SB_BYTES + sizeof(struct bitmap_super_s));
- *firstp = first;
+ st->sb = first;
return 0;
}
- uuid_from_super0(uuid1, first);
- uuid_from_super0(uuid2, second);
+ uuid_from_super0(st, uuid1);
+ uuid_from_super0(tst, uuid2);
if (!same_uuid(uuid1, uuid2, 0))
return 2;
if (first->major_version != second->major_version ||
}
-static int load_super0(struct supertype *st, int fd, void **sbp, char *devname)
+static void free_super0(struct supertype *st);
+
+static int load_super0(struct supertype *st, int fd, char *devname)
{
/* try to read in the superblock
* Return:
mdp_super_t *super;
int uuid[4];
struct bitmap_super_s *bsb;
-
+
+ free_super0(st);
+
+ if (st->subarray[0])
+ return 1;
+
if (!get_dev_size(fd, devname, &dsize))
return 1;
- if (dsize < MD_RESERVED_SECTORS*512 * 2) {
+ if (dsize < MD_RESERVED_SECTORS*512) {
if (devname)
fprintf(stderr, Name
": %s is too small for md: size is %llu sectors.\n",
return 1;
}
- super = malloc(MD_SB_BYTES + sizeof(bitmap_super_t));
+ if (posix_memalign((void**)&super, 4096,
+ MD_SB_BYTES +
+ ROUND_UP(sizeof(bitmap_super_t), 4096)) != 0) {
+ fprintf(stderr, Name
+ ": %s could not allocate superblock\n", __func__);
+ return 1;
+ }
if (read(fd, super, sizeof(*super)) != MD_SB_BYTES) {
if (devname)
free(super);
return 2;
}
- *sbp = super;
+ st->sb = super;
+
if (st->ss == NULL) {
st->ss = &super0;
- st->minor_version = 90;
+ st->minor_version = super->minor_version;
st->max_devs = MD_SB_DISKS;
+ st->info = NULL;
}
/* Now check on the bitmap superblock */
* valid. If it doesn't clear the bit. An --assemble --force
* should get that written out.
*/
- if (read(fd, super+1, sizeof(struct bitmap_super_s))
- != sizeof(struct bitmap_super_s))
+ if (read(fd, super+1, ROUND_UP(sizeof(struct bitmap_super_s),4096))
+ != ROUND_UP(sizeof(struct bitmap_super_s),4096))
goto no_bitmap;
- uuid_from_super0(uuid, super);
+ uuid_from_super0(st, uuid);
bsb = (struct bitmap_super_s *)(super+1);
if (__le32_to_cpu(bsb->magic) != BITMAP_MAGIC ||
memcmp(bsb->uuid, uuid, 16) != 0)
struct supertype *st = malloc(sizeof(*st));
if (!st) return st;
+ memset(st, 0, sizeof(*st));
st->ss = &super0;
+ st->info = NULL;
st->minor_version = 90;
st->max_devs = MD_SB_DISKS;
+ st->sb = NULL;
+ /* we sometimes get 00.90 */
+ while (arg[0] == '0' && arg[1] == '0')
+ arg++;
if (strcmp(arg, "0") == 0 ||
strcmp(arg, "0.90") == 0 ||
- strcmp(arg, "default") == 0
+ strcmp(arg, "default") == 0 ||
+ strcmp(arg, "") == 0 /* no metadata */
)
return st;
+ st->minor_version = 91; /* reshape in progress */
+ if (strcmp(arg, "0.91") == 0) /* For dup_super support */
+ return st;
+
st->minor_version = 9; /* flag for 'byte-swapped' */
- if (strcmp(arg, "0.swap")==0)
+ if (strcmp(arg, "0.swap")==0 ||
+ strcmp(arg, "0.9") == 0) /* For dup_super support */
return st;
free(st);
static __u64 avail_size0(struct supertype *st, __u64 devsize)
{
- if (devsize < MD_RESERVED_SECTORS*2)
+ if (devsize < MD_RESERVED_SECTORS)
return 0ULL;
return MD_NEW_SIZE_SECTORS(devsize);
}
-static int add_internal_bitmap0(struct supertype *st, void *sbv, int *chunkp,
+static int add_internal_bitmap0(struct supertype *st, int *chunkp,
int delay, int write_behind,
unsigned long long size, int may_change,
int major)
unsigned long long max_bits = 60*1024*8;
unsigned long long min_chunk;
int chunk = *chunkp;
- mdp_super_t *sb = sbv;
+ mdp_super_t *sb = st->sb;
bitmap_super_t *bms = (bitmap_super_t*)(((char*)sb) + MD_SB_BYTES);
memset(bms, 0, sizeof(*bms));
bms->magic = __cpu_to_le32(BITMAP_MAGIC);
bms->version = __cpu_to_le32(major);
- uuid_from_super0((int*)bms->uuid, sb);
+ uuid_from_super0(st, (int*)bms->uuid);
bms->chunksize = __cpu_to_le32(chunk);
bms->daemon_sleep = __cpu_to_le32(delay);
bms->sync_size = __cpu_to_le64(size);
}
-void locate_bitmap0(struct supertype *st, int fd, void *sbv)
+static void locate_bitmap0(struct supertype *st, int fd)
{
unsigned long long dsize;
unsigned long long offset;
if (!get_dev_size(fd, NULL, &dsize))
return;
- if (dsize < MD_RESERVED_SECTORS*512 * 2)
+ if (dsize < MD_RESERVED_SECTORS*512)
return;
offset = MD_NEW_SIZE_SECTORS(dsize>>9);
lseek64(fd, offset, 0);
}
-int write_bitmap0(struct supertype *st, int fd, void *sbv)
+static int write_bitmap0(struct supertype *st, int fd)
{
unsigned long long dsize;
unsigned long long offset;
- mdp_super_t *sb = sbv;
-
+ mdp_super_t *sb = st->sb;
+
int rv = 0;
int towrite, n;
- char buf[4096];
+ char abuf[4096+4096];
+ char *buf = (char*)(((long)(abuf+4096))&~4095L);
if (!get_dev_size(fd, NULL, &dsize))
return 1;
- if (dsize < MD_RESERVED_SECTORS*512 * 2)
- return -1;
+ if (dsize < MD_RESERVED_SECTORS*512)
+ return -1;
offset = MD_NEW_SIZE_SECTORS(dsize>>9);
if (lseek64(fd, offset + 4096, 0)< 0LL)
return 3;
-
- if (write(fd, ((char*)sb)+MD_SB_BYTES, sizeof(bitmap_super_t)) !=
- sizeof(bitmap_super_t))
- return -2;
- towrite = 64*1024 - MD_SB_BYTES - sizeof(bitmap_super_t);
- memset(buf, 0xff, sizeof(buf));
+ memset(buf, 0xff, 4096);
+ memcpy(buf, ((char*)sb)+MD_SB_BYTES, sizeof(bitmap_super_t));
+ towrite = 64*1024;
while (towrite > 0) {
n = towrite;
- if (n > sizeof(buf))
- n = sizeof(buf);
+ if (n > 4096)
+ n = 4096;
n = write(fd, buf, n);
if (n > 0)
towrite -= n;
else
break;
+ memset(buf, 0xff, 4096);
}
fsync(fd);
if (towrite)
return rv;
}
+static void free_super0(struct supertype *st)
+{
+ if (st->sb)
+ free(st->sb);
+ st->sb = NULL;
+}
+
+#ifndef MDASSEMBLE
+static int validate_geometry0(struct supertype *st, int level,
+ int layout, int raiddisks,
+ int chunk, unsigned long long size,
+ char *subdev, unsigned long long *freesize,
+ int verbose)
+{
+ unsigned long long ldsize;
+ int fd;
+
+ if (level == LEVEL_CONTAINER)
+ return 0;
+ if (raiddisks > MD_SB_DISKS)
+ return 0;
+ if (size > (0x7fffffffULL<<9))
+ return 0;
+ if (!subdev)
+ return 1;
+
+ fd = open(subdev, O_RDONLY|O_EXCL, 0);
+ if (fd < 0) {
+ if (verbose)
+ fprintf(stderr, Name ": super0.90 cannot open %s: %s\n",
+ subdev, strerror(errno));
+ return 0;
+ }
+
+ if (!get_dev_size(fd, subdev, &ldsize)) {
+ close(fd);
+ return 0;
+ }
+ close(fd);
+
+ if (ldsize < MD_RESERVED_SECTORS * 512)
+ return 0;
+ if (size > (0x7fffffffULL<<9))
+ return 0;
+ *freesize = MD_NEW_SIZE_SECTORS(ldsize >> 9);
+ return 1;
+}
+#endif /* MDASSEMBLE */
+
struct superswitch super0 = {
#ifndef MDASSEMBLE
.examine_super = examine_super0,
.brief_examine_super = brief_examine_super0,
+ .export_examine_super = export_examine_super0,
.detail_super = detail_super0,
.brief_detail_super = brief_detail_super0,
- .export_super = export_super0,
+ .write_init_super = write_init_super0,
+ .validate_geometry = validate_geometry0,
+ .add_to_super = add_to_super0,
#endif
.match_home = match_home0,
.uuid_from_super = uuid_from_super0,
.getinfo_super = getinfo_super0,
.update_super = update_super0,
.init_super = init_super0,
- .add_to_super = add_to_super0,
.store_super = store_super0,
- .write_init_super = write_init_super0,
.compare_super = compare_super0,
.load_super = load_super0,
.match_metadata_desc = match_metadata_desc0,
.add_internal_bitmap = add_internal_bitmap0,
.locate_bitmap = locate_bitmap0,
.write_bitmap = write_bitmap0,
- .major = 0,
- .swapuuid = 0,
+ .free_super = free_super0,
+ .name = "0.90",
};
projects / thirdparty / mdadm.git / blobdiff