1 files changed, 38 insertions, 6 deletions

diff --git a/drivers/md/dm-thin-metadata.c b/drivers/md/dm-thin-metadata.c
index 5ead655706d4..2c44c5c10987 100644
--- a/drivers/md/dm-thin-metadata.c
+++ b/drivers/md/dm-thin-metadata.c
@@ -422,38 +422,70 @@ static void __setup_btree_details(struct dm_pool_metadata *pmd)
         pmd->details_info.value_type.equal = NULL;
 }
 
+static int __begin_transaction(struct dm_pool_metadata *pmd);
 static int __write_initial_superblock(struct dm_pool_metadata *pmd)
 {
         int r;
         struct dm_block *sblock;
+        size_t metadata_len, data_len;
         struct thin_disk_superblock *disk_super;
         sector_t bdev_size = i_size_read(pmd->bdev->bd_inode) >> SECTOR_SHIFT;
 
         if (bdev_size > THIN_METADATA_MAX_SECTORS)
                 bdev_size = THIN_METADATA_MAX_SECTORS;
 
+        r = dm_sm_root_size(pmd->metadata_sm, &metadata_len);
+        if (r < 0)
+                return r;
+
+        r = dm_sm_root_size(pmd->data_sm, &data_len);
+        if (r < 0)
+                return r;
+
+        r = dm_sm_commit(pmd->data_sm);
+        if (r < 0)
+                return r;
+
+        r = dm_tm_pre_commit(pmd->tm);
+        if (r < 0)
+                return r;
+
         r = superblock_lock_zero(pmd, &sblock);
         if (r)
                 return r;
 
         disk_super = dm_block_data(sblock);
+        disk_super->flags = 0;
         disk_super->magic = cpu_to_le64(THIN_SUPERBLOCK_MAGIC);
         disk_super->version = cpu_to_le32(THIN_VERSION);
         disk_super->time = 0;
+        disk_super->trans_id = 0;
+        disk_super->held_root = 0;
+
+        r = dm_sm_copy_root(pmd->metadata_sm, &disk_super->metadata_space_map_root,
+                            metadata_len);
+        if (r < 0)
+                goto bad_locked;
+
+        r = dm_sm_copy_root(pmd->data_sm, &disk_super->data_space_map_root,
+                            data_len);
+        if (r < 0)
+                goto bad_locked;
+
+        disk_super->data_mapping_root = cpu_to_le64(pmd->root);
+        disk_super->device_details_root = cpu_to_le64(pmd->details_root);
         disk_super->metadata_block_size = cpu_to_le32(THIN_METADATA_BLOCK_SIZE >> SECTOR_SHIFT);
         disk_super->metadata_nr_blocks = cpu_to_le64(bdev_size >> SECTOR_TO_BLOCK_SHIFT);
         disk_super->data_block_size = cpu_to_le32(pmd->data_block_size);
 
-        r = dm_bm_unlock(sblock);
+        r = dm_tm_commit(pmd->tm, sblock);
         if (r)
                 return r;
 
-        pmd->flags = 0;
-        r = dm_pool_commit_metadata(pmd);
-        if (r < 0)
-                DMERR("%s: dm_pool_commit_metadata() failed, error = %d",
-                      __func__, r);
+        return __begin_transaction(pmd);
 
+bad_locked:
+        dm_bm_unlock(sblock);
         return r;
 }