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From 54148aba7c1a02bf018ae777bebc7f16e6cd3195 Mon Sep 17 00:00:00 2001
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From: Pawel Baldysiak <pawel.baldysiak@intel.com>
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Date: Thu, 28 Sep 2017 14:41:12 +0200
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Subject: [PATCH 06/12] imsm: switch to multiple ppls automatically
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during assemble
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If user has array with single ppl -
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update the metadata to use multiple ppls.
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Signed-off-by: Pawel Baldysiak <pawel.baldysiak@intel.com>
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Signed-off-by: Artur Paszkiewicz <artur.paszkiewicz@intel.com>
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Signed-off-by: Jes Sorensen <jsorensen@fb.com>
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---
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super-intel.c | 30 ++++++++++++++++++++++++++++++
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1 file changed, 30 insertions(+)
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diff --git a/super-intel.c b/super-intel.c
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index 65cdc92..630fb6e 100644
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--- a/super-intel.c
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+++ b/super-intel.c
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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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+
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+ sprintf(subarray, "%d", info->container_member);
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+
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+ if (mdmon_running(st->container_devnm))
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+ st->update_tail = &st->updates;
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+
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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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+
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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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--
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2.7.4
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