diff options
author | David Teigland <teigland@redhat.com> | 2019-02-06 13:51:54 -0600 |
---|---|---|
committer | David Teigland <teigland@redhat.com> | 2019-04-11 12:03:04 -0500 |
commit | a02cda4e709d22c5869fd439da9bc085bb11b622 (patch) | |
tree | ae96e8e8a22471c854a54c802335774b5f14b3bf | |
parent | c36d9a73ac17e2047f68308a01f1b9225999b583 (diff) | |
download | lvm2-a02cda4e709d22c5869fd439da9bc085bb11b622.tar.gz |
add a warning message when updating old metadata
in an mda that had previously not been updated
-rw-r--r-- | lib/metadata/metadata.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/metadata/metadata.c b/lib/metadata/metadata.c index a9c27dc6e..e52159938 100644 --- a/lib/metadata/metadata.c +++ b/lib/metadata/metadata.c @@ -2947,6 +2947,7 @@ int vg_write(struct volume_group *vg) struct pv_list *pvl, *pvl_safe, *new_pvl; struct metadata_area *mda; struct lv_list *lvl; + struct device *mda_dev; int revert = 0, wrote = 0; if (vg_is_shared(vg)) { @@ -3040,14 +3041,34 @@ int vg_write(struct volume_group *vg) /* Write to each copy of the metadata area */ dm_list_iterate_items(mda, &vg->fid->metadata_areas_in_use) { + mda_dev = mda_get_device(mda); + if (mda->status & MDA_FAILED) continue; + + /* + * When the scan and vg_read find old metadata in an mda, they + * leave the info struct in lvmcache, and leave the mda in + * info->mdas. That means we use the mda here to write new + * metadata into. This means that a command writing a VG will + * automatically update old metadata to the latest. + * + * This can also happen if the metadata was ignored on this + * dev, and then it's later changed to not ignored, and + * we see the old metadata. + */ + if (lvmcache_has_old_metadata(vg->cmd, vg->name, (const char *)&vg->id, mda_dev)) { + log_warn("WARNING: updating old metadata to %u on %s for VG %s.", + vg->seqno, dev_name(mda_dev), vg->name); + } + if (!mda->ops->vg_write) { log_error("Format does not support writing volume" "group metadata areas"); revert = 1; break; } + if (!mda->ops->vg_write(vg->fid, vg, mda)) { if (vg->cmd->handles_missing_pvs) { log_warn("WARNING: Failed to write an MDA of VG %s.", vg->name); |