linux-kernel - Re: [PATCH] alternative to sys

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Date:	Thu, 24 Apr 2008 20:49:32 +0400
From:	Evgeniy Polyakov <johnpol@....mipt.ru>
To:	Ulrich Drepper <drepper@...hat.com>
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, akpm@...ux-foundation.org,
	torvalds@...ux-foundation.org
Subject: Re: [PATCH] alternative to sys_indirect, part 1

On Thu, Apr 24, 2008 at 07:18:43AM -0700, Ulrich Drepper (drepper@...hat.com) wrote:
> I don't think this is a viable approach because it is not about the
> range.  People can and do select arbitrary values for those types.
> Until a value is officially recognized and registered it is in fact best
> to choose a (possibly large) random value to not conflict with anything
> else.  Who can guarantee that whatever bit is chosen for SOCK_CLOEXEC
> isn't already used by someone?

type argument is limited to SOCK_MAX, higher half of the word can be
used for flags. It is much cleaner than implementing socket4() for the
single bit.

> Add to this that it's not a complete solution (no such hack possible for
> accept) and I think using a new interface is cleaner(tm).

It can inherit flags from parent by default.

-- 
	Evgeniy Polyakov
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