linux-kernel - Re: [GIT PULL] Namespace file descriptors for 2.6.40

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Message-ID: <BANLkTinPJSJrr2LPVyCt_7ci7pSu-sDdRQ@mail.gmail.com>
Date:	Wed, 25 May 2011 17:22:39 +0200
From:	Geert Uytterhoeven <geert@...ux-m68k.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Valdis.Kletnieks@...edu,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	James Bottomley <James.Bottomley@...senpartnership.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-kernel@...r.kernel.org,
	Linux Containers <containers@...ts.osdl.org>,
	netdev@...r.kernel.org
Subject: Re: [GIT PULL] Namespace file descriptors for 2.6.40

On Wed, May 25, 2011 at 15:17, Ingo Molnar <mingo@...e.hu> wrote:
> * Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> On Wed, May 25, 2011 at 14:47, Ingo Molnar <mingo@...e.hu> wrote:
>> > * Geert Uytterhoeven <geert@...ux-m68k.org> wrote:
>> >
>> >> > But at least the primary, 'native' syscall table of every arch
>> >> > could be kept rather fresh via generic enumeration.
>> >>
>> >> So we can start all over at offset 501 (alpha just started using
>> >> 500) with a unified, clean, and compressed list of syscalls? Or do
>> >> we have some more other-os-compat syscalls around in this range?
>> >
>> > No, that would leave a big hole in the syscall table of most
>> > architectures.
>>
>> Sure, but we could (a) optimize for the case where the syscall number is
>> larger than 500 and/or (b) drop support for syscall numbers smaller than
>> 501, depending on a config option.
>
> Dunno why there is so much desire to complicate and break
> well-working ABIs while we have a 14+ MLOC kernel with so much code
> in it that is in dire need to be improved! :-)

Because we (think we) need less active brain cells to write emails that to code.
So when we're not "active" enough to hack, we tend to respond to long winding
getting off-topic email threads...

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
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