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imsm: fixup container spare uuids by default 

Spares in the imsm case are marked with the "match-all" uuid of
ffffffff-ffffffff-ffffffff-ffffffff.  When performing incremental
assembly we need to associate such devices with a populated container
uuid.  Also when performing --detail on a container with only spares
present we can make an attempt to return a real uuid.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2009-02-23 14:26:11 -07:00
parent 689c9bf3c3
commit 7a70e8aa8d
1 changed files with 29 additions and 1 deletions
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30
super-intel.c
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@ -1152,6 +1152,32 @@ static void getinfo_super_imsm_volume(struct supertype *st, struct mdinfo *info)
uuid_from_super_imsm(st, info->uuid);
}
/* check the config file to see if we can return a real uuid for this spare */
static void fixup_container_spare_uuid(struct mdinfo *inf)
{
struct mddev_ident_s *array_list;
if (inf->array.level != LEVEL_CONTAINER ||
memcmp(inf->uuid, uuid_match_any, sizeof(int[4])) != 0)
return;
array_list = conf_get_ident(NULL);
for (; array_list; array_list = array_list->next) {
if (array_list->uuid_set) {
struct supertype *_sst; /* spare supertype */
struct supertype *_cst; /* container supertype */
_cst = array_list->st;
_sst = _cst->ss->match_metadata_desc(inf->text_version);
if (_sst) {
memcpy(inf->uuid, array_list->uuid, sizeof(int[4]));
free(_sst);
break;
}
}
}
}
static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info)
{
@ -1207,8 +1233,10 @@ static void getinfo_super_imsm(struct supertype *st, struct mdinfo *info)
*/
if (info->disk.state & (1 << MD_DISK_SYNC) || super->anchor->num_raid_devs)
uuid_from_super_imsm(st, info->uuid);
else
else {
memcpy(info->uuid, uuid_match_any, sizeof(int[4]));
fixup_container_spare_uuid(info);
}
}
static int update_super_imsm(struct supertype *st, struct mdinfo *info,