Re: [PATCH 5/5] Btrfs: fix memory leak in btrfs_pause_balance()

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On Thu, May 17, 2012 at 07:58:53PM +0800, Miao Xie wrote:
> We forget to free fs_info->balance_ctl in the btrfs_pause_balance()
> when umounting the fs.
> 
> Signed-off-by: Miao Xie <miaox@xxxxxxxxxxxxxx>
> ---
>  fs/btrfs/volumes.c |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
> index c536d52..fd7fe80 100644
> --- a/fs/btrfs/volumes.c
> +++ b/fs/btrfs/volumes.c
> @@ -2937,6 +2937,9 @@ int btrfs_pause_balance(struct btrfs_fs_info *fs_info)
>  		ret = -ENOTCONN;
>  	}
>  
> +	if (btrfs_fs_closing(fs_info) && fs_info->balance_ctl)
> +		unset_balance_control(fs_info);
> +
>  	mutex_unlock(&fs_info->balance_mutex);
>  	return ret;
>  }

It is kfree()'d in free_fs_info(), which should be called on unmount.
Am I missing something here ?

Thanks,

		Ilya
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