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>
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@ -6184,6 +6184,36 @@ static int validate_ppl_imsm(struct supertype *st, struct mdinfo *info,
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out:
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free(buf);
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/*
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* Update metadata to use mutliple PPLs area (1MB).
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* This is done once for all RAID members
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*/
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if (info->consistency_policy == CONSISTENCY_POLICY_PPL &&
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info->ppl_size != (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9)) {
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char subarray[20];
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struct mdinfo *member_dev;
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sprintf(subarray, "%d", info->container_member);
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if (mdmon_running(st->container_devnm))
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st->update_tail = &st->updates;
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if (st->ss->update_subarray(st, subarray, "ppl", NULL)) {
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pr_err("Failed to update subarray %s\n",
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subarray);
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} else {
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if (st->update_tail)
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flush_metadata_updates(st);
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else
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st->ss->sync_metadata(st);
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info->ppl_size = (MULTIPLE_PPL_AREA_SIZE_IMSM >> 9);
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for (member_dev = info->devs; member_dev;
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member_dev = member_dev->next)
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member_dev->ppl_size =
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(MULTIPLE_PPL_AREA_SIZE_IMSM >> 9);
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}
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}
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if (ret == 1 && map->map_state == IMSM_T_STATE_UNINITIALIZED)
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return st->ss->write_init_ppl(st, info, d->fd);
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