Re: [RESEND][PATCH] btrfs: add "no file data" flag to btrfs send ioctl

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On Wed, Jan 30, 2013 at 02:43:41PM -0800, Mark Fasheh wrote:
> @@ -4570,6 +4605,11 @@ long btrfs_ioctl_send(struct file *mnt_file, void __user *arg_)
>  	INIT_RADIX_TREE(&sctx->name_cache, GFP_NOFS);
>  	INIT_LIST_HEAD(&sctx->name_cache_list);
>  
> +	if (arg->flags & ~BTRFS_SEND_FLAG_NO_FILE_DATA)
> +		return -EINVAL;

Doing just return skips the cleanup block (goto out;), also the test can
be placed just after the access_ok() call and skip allocation and init
of sctx.

> +
> +	sctx->flags = arg->flags;
> +
>  	sctx->send_filp = fget(arg->send_fd);
>  	if (IS_ERR(sctx->send_filp)) {
>  		ret = PTR_ERR(sctx->send_filp);
--
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