1 files changed, 20 insertions, 1 deletions

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 3aab10ce63e8..e913328d0f2a 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -921,7 +921,7 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
                 return 0;
         }
 
-        btrfs_wait_all_ordered_extents(fs_info, 1);
+        btrfs_wait_all_ordered_extents(fs_info);
 
         trans = btrfs_attach_transaction_barrier(root);
         if (IS_ERR(trans)) {
@@ -1340,6 +1340,12 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
                 if (ret)
                         goto restore;
         } else {
+                if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {
+                        btrfs_err(fs_info,
+                                "Remounting read-write after error is not allowed\n");
+                        ret = -EINVAL;
+                        goto restore;
+                }
                 if (fs_info->fs_devices->rw_devices == 0) {
                         ret = -EACCES;
                         goto restore;
@@ -1377,6 +1383,16 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
                         pr_warn("btrfs: failed to resume dev_replace\n");
                         goto restore;
                 }
+
+                if (!fs_info->uuid_root) {
+                        pr_info("btrfs: creating UUID tree\n");
+                        ret = btrfs_create_uuid_tree(fs_info);
+                        if (ret) {
+                                pr_warn("btrfs: failed to create the uuid tree"
+                                        "%d\n", ret);
+                                goto restore;
+                        }
+                }
                 sb->s_flags &= ~MS_RDONLY;
         }
 out:
@@ -1762,6 +1778,9 @@ static void btrfs_print_info(void)
 #ifdef CONFIG_BTRFS_DEBUG
                         ", debug=on"
 #endif
+#ifdef CONFIG_BTRFS_ASSERT
+                        ", assert=on"
+#endif
 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
                         ", integrity-checker=on"
 #endif