netdev - Re: [PATCH 02/18] flag parameters: socket and socketpair

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Message-Id: <20080505185850.789d870a.akpm@linux-foundation.org>
Date:	Mon, 5 May 2008 18:58:50 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Ulrich Drepper <drepper@...hat.com>
Cc:	linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
	davidel@...ilserver.org, mtk.manpages@...il.com,
	torvalds@...ux-foundation.org
Subject: Re: [PATCH 02/18] flag parameters: socket and socketpair

On Sun, 4 May 2008 23:42:46 -0400 Ulrich Drepper <drepper@...hat.com> wrote:

> +static const struct flags_rmap sock_file_flags_remap[] = {
> +	{ SOCK_CLOEXEC, O_CLOEXEC },
> +};
> +
>  asmlinkage long sys_socket(int family, int type, int protocol)
>  {
>  	int retval;
>  	struct socket *sock;
> +	int fflags;
> +
> +	type = flags_remap(sock_file_flags_remap,
> +			   ARRAY_SIZE(sock_file_flags_remap),
> +			   type, &fflags);

oh, so that's what it does.

afaict we only ever remap one or two flags.  Would it not be more efficient
to do that inline?  Something along the lines of:

	type = flag_remap(type, &fflags, SOCK_whatever, O_whatever);
	type = flag_remap(type, &fflags, SOCK_whatever2, O_whatever2);

?
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