diff options
| -rw-r--r-- | fs/btrfs/ioctl.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c index f1c9bb4079e..7cc2e8e075b 100644 --- a/fs/btrfs/ioctl.c +++ b/fs/btrfs/ioctl.c @@ -964,6 +964,15 @@ static noinline int btrfs_ioctl_snap_create(struct file *file, name = async_vol_args->name; fd = async_vol_args->fd; async_vol_args->name[BTRFS_SNAPSHOT_NAME_MAX] = '\0'; + + ret = btrfs_ioctl_snap_create_transid(file, name, fd, + subvol, &transid); + + if (ret == 0 && + copy_to_user(arg + + offsetof(struct btrfs_ioctl_async_vol_args, + transid), &transid, sizeof(transid))) + ret = -EFAULT; } else { vol_args = memdup_user(arg, sizeof(*vol_args)); if (IS_ERR(vol_args)) @@ -971,16 +980,9 @@ static noinline int btrfs_ioctl_snap_create(struct file *file, name = vol_args->name; fd = vol_args->fd; vol_args->name[BTRFS_PATH_NAME_MAX] = '\0'; - } - ret = btrfs_ioctl_snap_create_transid(file, name, fd, - subvol, &transid); - - if (!ret && async) { - if (copy_to_user(arg + - offsetof(struct btrfs_ioctl_async_vol_args, - transid), &transid, sizeof(transid))) - return -EFAULT; + ret = btrfs_ioctl_snap_create_transid(file, name, fd, + subvol, NULL); } kfree(vol_args); |