linux-kernel - Re: [PATCH] userfaultfd: register syscall numbers for x86 32bit and x86-64 64bit

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Date:	Fri, 31 Jul 2015 10:31:30 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Andrea Arcangeli <aarcange@...hat.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...e.hu>,
	"\\\"H. Peter Anvin\\\"" <hpa@...or.com>,
	Peter Zijlstra <peterz@...radead.org>,
	linux-next@...r.kernel.org, linux-api@...r.kernel.org,
	linux-kernel@...r.kernel.org, Andy Lutomirski <luto@...nel.org>,
	Eric B Munson <emunson@...mai.com>,
	Pavel Emelyanov <xemul@...allels.com>,
	"\\\"Dr. David Alan Gilbert\\\"" <dgilbert@...hat.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH] userfaultfd: register syscall numbers for x86 32bit and
 x86-64 64bit


* Andrea Arcangeli <aarcange@...hat.com> wrote:

> This registers the official numbers of the userfaultfd syscall for x86
> 32bit and x86-64 64bit. This registration allows to ship kernels in
> production using these two syscall numbers for userfaultfd.
> 
> Acked-by: Pavel Emelyanov <xemul@...allels.com>
> Signed-off-by: Andrea Arcangeli <aarcange@...hat.com>
> ---
>  arch/x86/entry/syscalls/syscall_32.tbl | 1 +
>  arch/x86/entry/syscalls/syscall_64.tbl | 1 +
>  include/linux/syscalls.h               | 1 +
>  kernel/sys_ni.c                        | 1 +
>  4 files changed, 4 insertions(+)

Hm, is there consensus on the upstream desirability of this sytem call?

Thanks,

	Ingo
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