Re: [RFC v3 2/3] file: allow callers to free the old file descriptor after dup2

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On Fri, Mar 24, 2023 at 05:15:25AM +0000, aloktiagi wrote:
> @@ -1119,8 +1119,12 @@ __releases(&files->file_lock)
>  		__clear_close_on_exec(fd, fdt);
>  	spin_unlock(&files->file_lock);
>  
> -	if (tofree)
> -		filp_close(tofree, files);
> +	if (fdfile) {
> +		*fdfile = tofree;
> +	} else {
> +		if (tofree)
> +			filp_close(tofree, files);
> +	}

Why not:

	if (fdfile)
		 *fdfile = tofree;
	else if (tofree)
		filp_close(tofree, files);

Shorter and makes the parallel structure more obvious.




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