diff options
| -rw-r--r-- | drivers/md/dm-exception-store.c | 11 | ||||
| -rw-r--r-- | drivers/md/dm-snap.c | 5 |
2 files changed, 10 insertions, 6 deletions
diff --git a/drivers/md/dm-exception-store.c b/drivers/md/dm-exception-store.c index 8c25c2f..3d65917 100644 --- a/drivers/md/dm-exception-store.c +++ b/drivers/md/dm-exception-store.c @@ -489,11 +489,6 @@ static int persistent_read_metadata(struct exception_store *store) /* * Sanity checks. */ - if (!ps->valid) { - DMWARN("snapshot is marked invalid"); - return -EINVAL; - } - if (ps->version != SNAPSHOT_DISK_VERSION) { DMWARN("unable to handle snapshot disk version %d", ps->version); @@ -501,6 +496,12 @@ static int persistent_read_metadata(struct exception_store *store) } /* + * Metadata are valid, but snapshot is invalidated + */ + if (!ps->valid) + return 1; + + /* * Read the metadata. */ r = read_exceptions(ps); diff --git a/drivers/md/dm-snap.c b/drivers/md/dm-snap.c index 1da4122..854891d 100644 --- a/drivers/md/dm-snap.c +++ b/drivers/md/dm-snap.c @@ -523,9 +523,12 @@ static int snapshot_ctr(struct dm_target *ti, unsigned int argc, char **argv) /* Metadata must only be loaded into one table at once */ r = s->store.read_metadata(&s->store); - if (r) { + if (r < 0) { ti->error = "Failed to read snapshot metadata"; goto bad6; + } else if (r > 0) { + s->valid = 0; + DMWARN("Snapshot is marked invalid."); } bio_list_init(&s->queued_bios); |