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-rw-r--r--drivers/md/dm-thin.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c
index af79bae5ab74..0d7852e2b275 100644
--- a/drivers/md/dm-thin.c
+++ b/drivers/md/dm-thin.c
@@ -1400,6 +1400,7 @@ static void set_pool_mode(struct pool *pool, enum pool_mode mode)
case PM_FAIL:
DMERR("%s: switching pool to failure mode",
dm_device_name(pool->pool_md));
+ dm_pool_metadata_read_only(pool->pmd);
pool->process_bio = process_bio_fail;
pool->process_discard = process_bio_fail;
pool->process_prepared_mapping = process_prepared_mapping_fail;