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imsm: use disk_ord_tbl to identify rebuilding disks 

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2008-08-15 10:57:19 -07:00
parent 9a1608e5d0
commit 7eef045331
1 changed files with 22 additions and 2 deletions
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24
super-intel.c
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@ -68,8 +68,10 @@ struct imsm_map {
__u8 num_members; /* number of member disks */
__u8 reserved[3];
__u32 filler[7]; /* expansion area */
#define IMSM_ORD_REBUILD (1 << 24)
__u32 disk_ord_tbl[1]; /* disk_ord_tbl[num_members],
top byte special */
* top byte contains some flags
*/
} __attribute__ ((packed));
struct imsm_vol {
@ -339,10 +341,24 @@ static __u32 get_imsm_disk_idx(struct imsm_map *map, int slot)
{
__u32 *ord_tbl = &map->disk_ord_tbl[slot];
/* top byte is 'special' */
/* top byte identifies disk under rebuild
* why not just use the USABLE bit... oh well.
*/
return __le32_to_cpu(*ord_tbl & ~(0xff << 24));
}
static __u32 get_imsm_ord_tbl_ent(struct imsm_dev *dev, int slot)
{
struct imsm_map *map;
if (dev->vol.migr_state)
map = get_imsm_map(dev, 0);
else
map = get_imsm_map(dev, 1);
return map->disk_ord_tbl[slot];
}
static int get_imsm_raid_level(struct imsm_map *map)
{
if (map->raid_level == 1) {
@ -2027,9 +2043,11 @@ static struct mdinfo *container_content_imsm(struct supertype *st)
int idx;
int skip;
__u32 s;
__u32 ord;
skip = 0;
idx = get_imsm_disk_idx(map, slot);
ord = get_imsm_ord_tbl_ent(dev, slot);
for (d = super->disks; d ; d = d->next)
if (d->index == idx)
break;
@ -2042,6 +2060,8 @@ static struct mdinfo *container_content_imsm(struct supertype *st)
skip = 1;
if (!(s & USABLE_DISK))
skip = 1;
if (ord & IMSM_ORD_REBUILD)
skip = 1;
/*
* if we skip some disks the array will be assmebled degraded;