1 files changed, 13 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 1e3e414c8501..30965120772b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2384,6 +2384,8 @@ int open_ctree(struct super_block *sb,
         init_waitqueue_head(&fs_info->transaction_blocked_wait);
         init_waitqueue_head(&fs_info->async_submit_wait);
 
+        INIT_LIST_HEAD(&fs_info->pinned_chunks);
+
         ret = btrfs_alloc_stripe_hash_table(fs_info);
         if (ret) {
                 err = ret;
@@ -3715,6 +3717,17 @@ void close_ctree(struct btrfs_root *root)
 
         btrfs_free_block_rsv(root, root->orphan_block_rsv);
         root->orphan_block_rsv = NULL;
+
+        lock_chunks(root);
+        while (!list_empty(&fs_info->pinned_chunks)) {
+                struct extent_map *em;
+
+                em = list_first_entry(&fs_info->pinned_chunks,
+                                      struct extent_map, list);
+                list_del_init(&em->list);
+                free_extent_map(em);
+        }
+        unlock_chunks(root);
 }
 
 int btrfs_buffer_uptodate(struct extent_buffer *buf, u64 parent_transid,