}
-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
printf("\n");
}
+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 = st->sb;
printf("%08x", sb->set_uuid0);
}
-static void export_super0(struct supertype *st)
+static void export_detail_super0(struct supertype *st)
{
mdp_super_t *sb = st->sb;
printf("MD_UUID=");
info->events = md_event(sb);
info->data_offset = 0;
+ sprintf(info->text_version, "0.%d", sb->minor_version);
+
uuid_from_super0(st, info->uuid);
if (sb->minor_version > 90 && (sb->reshape_position+1) != 0) {
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;
+
+ posix_memalign((void**)&sb, 512, MD_SB_BYTES + sizeof(bitmap_super_t));
memset(sb, 0, MD_SB_BYTES + sizeof(bitmap_super_t));
st->sb = sb;
- if (info->major_version == -1) {
+ if (info == NULL) {
/* zeroing the superblock */
return 0;
}
return 1;
}
+struct devinfo {
+ int fd;
+ char *devname;
+ mdu_disk_info_t disk;
+ struct devinfo *next;
+};
/* Add a device to the superblock being created */
-static void add_to_super0(struct supertype *st, mdu_disk_info_t *dinfo)
+static void add_to_super0(struct supertype *st, mdu_disk_info_t *dinfo,
+ int fd, char *devname)
{
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;
}
static int store_super0(struct supertype *st, int fd)
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),512)) !=
+ ROUND_UP(sizeof(*bm),512))
return 5;
}
return 0;
}
-static int write_init_super0(struct supertype *st,
- mdu_disk_info_t *dinfo, char *devname)
+#ifndef MDASSEMBLE
+static int write_init_super0(struct supertype *st)
{
mdp_super_t *sb = st->sb;
- int fd = open(devname, O_RDWR|O_EXCL);
- int rv;
+ 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->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);
+ 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(struct supertype *st, struct supertype *tst)
{
if (second->md_magic != MD_SB_MAGIC)
return 1;
if (!first) {
- first = malloc(MD_SB_BYTES + sizeof(struct bitmap_super_s));
+ posix_memalign((void**)&first, 512,
+ MD_SB_BYTES + sizeof(struct bitmap_super_s));
memcpy(first, second, MD_SB_BYTES + sizeof(struct bitmap_super_s));
st->sb = first;
return 0;
free_super0(st);
+ if (st->subarray[0])
+ return 1;
+
if (!get_dev_size(fd, devname, &dsize))
return 1;
return 1;
}
- super = malloc(MD_SB_BYTES + sizeof(bitmap_super_t));
+ posix_memalign((void**)&super, 512, MD_SB_BYTES + sizeof(bitmap_super_t)+512);
if (read(fd, super, sizeof(*super)) != MD_SB_BYTES) {
if (devname)
st->ss = &super0;
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),512))
+ != ROUND_UP(sizeof(struct bitmap_super_s),512))
goto no_bitmap;
uuid_from_super0(st, uuid);
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;
if (strcmp(arg, "0") == 0 ||
strcmp(arg, "0.90") == 0 ||
- strcmp(arg, "0.91") == 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);
}
-void locate_bitmap0(struct supertype *st, int fd)
+static void locate_bitmap0(struct supertype *st, int fd)
{
unsigned long long dsize;
unsigned long long offset;
lseek64(fd, offset, 0);
}
-int write_bitmap0(struct supertype *st, int fd)
+static int write_bitmap0(struct supertype *st, int fd)
{
unsigned long long dsize;
unsigned long long offset;
int rv = 0;
int towrite, n;
- char buf[4096];
+ char abuf[4096+512];
+ char *buf = (char*)(((long)(abuf+512))&~511UL);
if (!get_dev_size(fd, NULL, &dsize))
return 1;
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)
st->sb = NULL;
}
+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<<10))
+ 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<<10))
+ return 0;
+ *freesize = MD_NEW_SIZE_SECTORS(ldsize >> 9);
+ return 1;
+}
+
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,
+ .export_detail_super = export_detail_super0,
+ .write_init_super = write_init_super0,
#endif
.match_home = match_home0,
.uuid_from_super = uuid_from_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,
.locate_bitmap = locate_bitmap0,
.write_bitmap = write_bitmap0,
.free_super = free_super0,
- .major = 0,
- .swapuuid = 0,
+ .validate_geometry = validate_geometry0,
};
projects / thirdparty / mdadm.git / blobdiff