Btrfs: check the return value of btrfs_start_delalloc_inodes()

We forget to check the return value of btrfs_start_delalloc_inodes(), fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 66dbc8d..7ba7b39 100644 (file)
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -465,7 +465,11 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
         * flush all outstanding I/O and inode extent mappings before the
         * copy operation is declared as being finished
         */
-       btrfs_start_delalloc_inodes(root, 0);
+       ret = btrfs_start_delalloc_inodes(root, 0);
+       if (ret) {
+               mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
+               return ret;
+       }
        btrfs_wait_ordered_extents(root, 0);
 
        trans = btrfs_start_transaction(root, 0);

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 24fde97..42dac27 100644 (file)
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1427,7 +1427,9 @@ static int btrfs_flush_all_pending_stuffs(struct btrfs_trans_handle *trans,
        }
 
        if (flush_on_commit || snap_pending) {
-               btrfs_start_delalloc_inodes(root, 1);
+               ret = btrfs_start_delalloc_inodes(root, 1);
+               if (ret)
+                       return ret;
                btrfs_wait_ordered_extents(root, 1);
        }