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DDF: getinfo_super_ddf_bvd: lba_offset calculation for RAID10 

Secondary RAID needs some extra logic here, too.

Signed-off-by: Martin Wilck <mwilck@arcor.de>
Signed-off-by: NeilBrown <neilb@suse.de>
This commit is contained in:
mwilck@arcor.de 2013-07-03 22:28:02 +02:00 committed by NeilBrown
parent 63eb245403
commit ddf94a437e
1 changed files with 10 additions and 0 deletions
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10
super-ddf.c
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@ -1832,10 +1832,12 @@ static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info, cha
struct ddf_super *ddf = st->sb;
struct vcl *vc = ddf->currentconf;
int cd = ddf->currentdev;
int n_prim;
int j;
struct dl *dl;
int map_disks = info->array.raid_disks;
__u32 *cptr;
struct vd_config *conf;
memset(info, 0, sizeof(*info));
if (layout_ddf2md(&vc->conf, &info->array) == -1)
@ -1847,6 +1849,14 @@ static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info, cha
info->array.chunk_size = 512 << vc->conf.chunk_shift;
info->custom_array_size = 0;
conf = &vc->conf;
n_prim = __be16_to_cpu(conf->prim_elmnt_count);
if (conf->sec_elmnt_count > 1 && cd >= n_prim) {
int ibvd = cd / n_prim - 1;
cd %= n_prim;
conf = vc->other_bvds[ibvd];
}
if (cd >= 0 && (unsigned)cd < ddf->mppe) {
info->data_offset =
__be64_to_cpu(LBA_OFFSET(ddf, &vc->conf)[cd]);