From: "H. Peter Anvin" <hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
To: Linus Torvalds
<torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org>
Cc: Arjan van de Ven <arjan-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Roland McGrath <roland-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
Sukadev Bhattiprolu
<sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org>,
Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>,
Containers
<containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org>,
Nathan Lynch <nathanl-V7BBcbaFuwjMbYB6QlFGEg@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
"Eric W. Biederman"
<ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org>,
mingo-X9Un+BFzKDI@public.gmane.org,
Alexey Dobriyan
<adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Pavel Emelyanov <xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org>,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
kosaki.motohiro-+CUm20s59erQFUHtdCDX3A@public.gmane.org
Subject: Re: [RFC][v7][PATCH 8/9]: Define clone2() syscall
Date: Tue, 29 Sep 2009 15:19:30 -0700 [thread overview]
Message-ID: <4AC287F2.8060603@zytor.com> (raw)
In-Reply-To: <alpine.LFD.2.01.0909291501530.6996-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
On 09/29/2009 03:11 PM, Linus Torvalds wrote:
>
> Ok, I agree with that. The kernel side is easy (we have magic calling
> conventions there and need to turn registers into arguments anyway before
> you get to the shared code), but your point about the user side prototype
> is valid.
>
I think it would also apply to kernel-side munging. It's quite possibly
you're right in that clone is such a special case anyway, but it seems
pointless to make it more special in the short bus sort of way even if
it is possible.
Let's just make it another system call. It doesn't have any downside
that I can see, might prevent problems, and avoids setting a bad
precedent that someone can misinterpret.
-hpa
--
To unsubscribe from this list: send the line "unsubscribe linux-api" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
next prev parent reply other threads:[~2009-09-29 22:19 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20090924165548.GA16586@us.ibm.com>
[not found] ` <20090924170308.GH16989@us.ibm.com>
[not found] ` <200909242343.59903.arnd@arndb.de>
[not found] ` <20090925082346.GB4436@localdomain>
[not found] ` <20090925105632.GG12824@hawkmoon.kerlabs.com>
[not found] ` <20090925105632.GG12824-Hu8+6S1rdjywhHL9vcZdMVaTQe2KTcn/@public.gmane.org>
2009-09-29 18:05 ` [RFC][v7][PATCH 8/9]: Define clone2() syscall Sukadev Bhattiprolu
[not found] ` <20090929180537.GD4625-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-09-29 18:40 ` Roland McGrath
[not found] ` <20090929184023.532DF34-nL1rrgvulkc2UH6IwYuUx0EOCMrvLtNR@public.gmane.org>
2009-09-29 18:44 ` H. Peter Anvin
[not found] ` <4AC255A4.4030002-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2009-09-29 19:02 ` Arjan van de Ven
[not found] ` <20090929210207.247b94df-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
2009-09-29 19:10 ` Linus Torvalds
[not found] ` <alpine.LFD.2.01.0909291207410.6996-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-09-29 20:02 ` H. Peter Anvin
[not found] ` <4AC267C7.4070300-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2009-09-29 22:11 ` Linus Torvalds
[not found] ` <alpine.LFD.2.01.0909291501530.6996-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-09-29 22:19 ` H. Peter Anvin [this message]
[not found] ` <4AC287F2.8060603-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>
2009-09-30 16:15 ` Arnd Bergmann
[not found] ` <200909301815.45211.arnd-r2nGTMty4D4@public.gmane.org>
2009-09-30 16:27 ` Linus Torvalds
[not found] ` <alpine.LFD.2.01.0909300925170.6996-bi+AKbBUZKY6gyzm1THtWbp2dZbC/Bob@public.gmane.org>
2009-09-30 17:59 ` Arnd Bergmann
[not found] ` <200909301959.41706.arnd-r2nGTMty4D4@public.gmane.org>
2009-09-30 19:14 ` Linus Torvalds
2009-09-30 6:48 ` Roland McGrath
2009-09-29 20:00 ` H. Peter Anvin
2009-09-29 21:58 ` Oren Laadan
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4AC287F2.8060603@zytor.com \
--to=hpa-ymnouzjc4hwavxtiumwx3w@public.gmane.org \
--cc=adobriyan-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org \
--cc=arjan-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org \
--cc=arnd-r2nGTMty4D4@public.gmane.org \
--cc=containers-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org \
--cc=ebiederm-aS9lmoZGLiVWk0Htik3J/w@public.gmane.org \
--cc=kosaki.motohiro-+CUm20s59erQFUHtdCDX3A@public.gmane.org \
--cc=linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org \
--cc=mingo-X9Un+BFzKDI@public.gmane.org \
--cc=nathanl-V7BBcbaFuwjMbYB6QlFGEg@public.gmane.org \
--cc=roland-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org \
--cc=sukadev-23VcF4HTsmIX0ybBhKVfKdBPR1lH4CV8@public.gmane.org \
--cc=torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org \
--cc=xemul-GEFAQzZX7r8dnm+yROfE0A@public.gmane.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).