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imsm: switch to multiple ppls automatically during assemble 

If user has array with single ppl -
update the metadata to use multiple ppls.

Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com>
Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
This commit is contained in:
Pawel Baldysiak 2017-09-28 14:41:12 +02:00 committed by Jes Sorensen
parent b251424242
commit 54148aba7c
1 changed files with 30 additions and 0 deletions
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30
super-intel.c
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@ -6184,6 +6184,36 @@ static int validate_ppl_imsm(struct supertype *st, struct mdinfo *info,
out:
free(buf);
/*
* Update metadata to use mutliple PPLs area (1MB).
* This is done once for all RAID members
*/
if (info->consistency_policy == CONSISTENCY_POLICY_PPL &&
info->ppl_size != (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9)) {
char subarray[20];
struct mdinfo *member_dev;
sprintf(subarray, "%d", info->container_member);
if (mdmon_running(st->container_devnm))
st->update_tail = &st->updates;
if (st->ss->update_subarray(st, subarray, "ppl", NULL)) {
pr_err("Failed to update subarray %s\n",
subarray);
} else {
if (st->update_tail)
flush_metadata_updates(st);
else
st->ss->sync_metadata(st);
info->ppl_size = (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9);
for (member_dev = info->devs; member_dev;
member_dev = member_dev->next)
member_dev->ppl_size =
(MULTIPLE_PPL_AREA_SIZE_IMSM >> 9);
}
}
if (ret == 1 && map->map_state == IMSM_T_STATE_UNINITIALIZED)
return st->ss->write_init_ppl(st, info, d->fd);