#include <dirent.h>
#include <signal.h>
+int __offroot;
+
/*
* following taken from linux/blkpg.h because they aren't
* anywhere else and it isn't safe to #include linux/ * stuff.
* followed by 'K', 'M', or 'G'.
* Without a suffix, K is assumed.
* Number returned is in sectors (half-K)
+ * -1 returned on error.
*/
char *c;
long long s = strtoll(size, &c, 10);
}
}
if (*c)
- s = 0;
+ s = -1;
return s;
}
return rv;
}
-int enough(int level, int raid_disks, int layout, int clean,
- char *avail, int avail_disks)
+int enough(int level, int raid_disks, int layout, int clean, char *avail)
{
int copies, first;
+ int i;
+ int avail_disks = 0;
+
+ for (i = 0; i < raid_disks; i++)
+ avail_disks += !!avail[i];
+
switch (level) {
case 10:
/* This is the tricky one - we need to check
/* there must be one of the 'copies' form 'first' */
int n = copies;
int cnt=0;
+ int this = first;
while (n--) {
- if (avail[first])
+ if (avail[this])
cnt++;
- first = (first+1) % raid_disks;
+ this = (this+1) % raid_disks;
}
if (cnt == 0)
return 0;
-
+ first = (first+(layout&255)) % raid_disks;
} while (first != 0);
return 1;
struct mdu_array_info_s array;
struct mdu_disk_info_s disk;
int avail_disks = 0;
- int i;
+ int i, rv;
char *avail;
if (ioctl(fd, GET_ARRAY_INFO, &array) != 0 ||
array.raid_disks <= 0)
return 0;
avail = calloc(array.raid_disks, 1);
- for (i=0; i < 1024 && array.nr_disks > 0; i++) {
+ for (i=0; i < MAX_DISKS && array.nr_disks > 0; i++) {
disk.number = i;
if (ioctl(fd, GET_DISK_INFO, &disk) != 0)
continue;
avail[disk.raid_disk] = 1;
}
/* This is used on an active array, so assume it is clean */
- return enough(array.level, array.raid_disks, array.layout,
- 1,
- avail, avail_disks);
+ rv = enough(array.level, array.raid_disks, array.layout,
+ 1, avail);
+ free(avail);
+ return rv;
}
unsigned long long calc_array_size(int level, int raid_disks, int layout,
int chunksize, unsigned long long devsize)
{
+ if (level == 1)
+ return devsize;
devsize &= ~(unsigned long long)((chunksize>>9)-1);
return get_data_disks(level, layout, raid_disks) * devsize;
}
devnum = devnum ? devnum-1 : (1<<20)-1) {
char *dn;
int _devnum;
+ char nbuf[50];
_devnum = use_partitions ? (-1-devnum) : devnum;
if (mddev_busy(_devnum))
continue;
+ sprintf(nbuf, "%s%d", use_partitions?"mdp":"md", devnum);
+ if (!conf_name_is_free(nbuf))
+ continue;
/* make sure it is new to /dev too, at least as a
* non-standard */
dn = map_dev(dev2major(_devnum), dev2minor(_devnum), 0);
char *dev = verstr+1;
subarray = strchr(dev, '/');
- if (subarray)
+ if (subarray) {
*subarray++ = '\0';
- subarray = strdup(subarray);
+ subarray = strdup(subarray);
+ }
container = devname2devnum(dev);
if (sra)
sysfs_free(sra);
int d;
ioctl(mdfd, GET_ARRAY_INFO, ainf);
- for (d = 0 ; d < 1024 ; d++) {
+ for (d = 0 ; d < MAX_DISKS ; d++) {
if (ioctl(mdfd, GET_DISK_INFO, disk) == 0 &&
(disk->major || disk->minor))
return;
continue;
if (de->d_name[0] == '.')
continue;
+ /* Need to make sure it is a container and not a volume */
+ sprintf(e, "/%s/md/metadata_version", de->d_name);
+ dfd = open(path, O_RDONLY);
+ if (dfd < 0)
+ continue;
+ n = read(dfd, buf, sizeof(buf));
+ close(dfd);
+ if (n <= 0 || (unsigned)n >= sizeof(buf))
+ continue;
+ buf[n] = 0;
+ if (strncmp(buf, "external", 8) != 0 ||
+ n < 10 ||
+ buf[9] == '/')
+ continue;
sprintf(e, "/%s/dev", de->d_name);
dfd = open(path, O_RDONLY);
if (dfd < 0)
skipped = 0;
for (i=0; paths[i]; i++)
- if (paths[i][0])
- execl(paths[i], "mdmon",
- devnum2devname(devnum),
- NULL);
+ if (paths[i][0]) {
+ if (__offroot) {
+ execl(paths[i], "mdmon", "--offroot",
+ devnum2devname(devnum),
+ NULL);
+ } else {
+ execl(paths[i], "mdmon",
+ devnum2devname(devnum),
+ NULL);
+ }
+ }
exit(1);
case -1: fprintf(stderr, Name ": cannot run mdmon. "
"Array remains readonly\n");