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-rw-r--r--drivers/md/dm-thin-metadata.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 67871e74c82b..c219a053c7f6 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -1207,6 +1207,12 @@ static int __reserve_metadata_snap(struct dm_pool_metadata *pmd)
dm_block_t held_root;
/*
+ * We commit to ensure the btree roots which we increment in a
+ * moment are up to date.
+ */
+ __commit_transaction(pmd);
+
+ /*
* Copy the superblock.
*/
dm_sm_inc_block(pmd->metadata_sm, THIN_SUPERBLOCK_LOCATION);