Btrfs: send, don't leave without decrementing clone root's send_progress

[uclinux-h8/linux.git] / fs / btrfs / send.c

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 6ec28f1..571de5a 100644 (file)
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -5852,9 +5852,7 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
                                ret = PTR_ERR(clone_root);
                                goto out;
                        }
-                       clone_sources_to_rollback = i + 1;
                        spin_lock(&clone_root->root_item_lock);
-                       clone_root->send_in_progress++;
                        if (!btrfs_root_readonly(clone_root) ||
                            btrfs_root_dead(clone_root)) {
                                spin_unlock(&clone_root->root_item_lock);
@@ -5862,10 +5860,12 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
                                ret = -EPERM;
                                goto out;
                        }
+                       clone_root->send_in_progress++;
                        spin_unlock(&clone_root->root_item_lock);
                        srcu_read_unlock(&fs_info->subvol_srcu, index);
 
                        sctx->clone_roots[i].root = clone_root;
+                       clone_sources_to_rollback = i + 1;
                }
                vfree(clone_sources_tmp);
                clone_sources_tmp = NULL;