Btrfs: Fix NULL block groups on reading the inode

Signed-off-by: Chris Mason <chris.mason@oracle.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f6a20112d9e7..3c7bf3bddcad 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -402,6 +402,10 @@ void btrfs_read_locked_inode(struct inode *inode)
         BTRFS_I(inode)->block_group = btrfs_lookup_block_group(root->fs_info,
                                                        alloc_group_block);
 
+        if (!BTRFS_I(inode)->block_group) {
+                BTRFS_I(inode)->block_group = btrfs_find_block_group(root,
+                                                         NULL, 0, 0, 0);
+        }
         btrfs_free_path(path);
         inode_item = NULL;