linux-kernel - Re: [PATCH v10 1/7] x86/arch_prctl/64: Use SYSCALL_DEFINE2 to define sys_arch

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Message-ID: <20161109094705.wvtyzpz7j7mqcz2x@pd.tnic>
Date:   Wed, 9 Nov 2016 10:47:05 +0100
From:   Borislav Petkov <bp@...e.de>
To:     Kyle Huey <me@...ehuey.com>
Cc:     Robert O'Callahan <robert@...llahan.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Andy Lutomirski <luto@...nel.org>,
        Ingo Molnar <mingo@...hat.com>,
        "H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
        Paolo Bonzini <pbonzini@...hat.com>,
        Radim Krčmář <rkrcmar@...hat.com>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>,
        Alexander Viro <viro@...iv.linux.org.uk>,
        Shuah Khan <shuah@...nel.org>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Len Brown <len.brown@...el.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Dmitry Safonov <dsafonov@...tuozzo.com>,
        David Matlack <dmatlack@...gle.com>,
        linux-kernel@...r.kernel.org,
        user-mode-linux-devel@...ts.sourceforge.net,
        user-mode-linux-user@...ts.sourceforge.net,
        linux-fsdevel@...r.kernel.org, linux-kselftest@...r.kernel.org,
        kvm@...r.kernel.org
Subject: Re: [PATCH v10 1/7] x86/arch_prctl/64: Use SYSCALL_DEFINE2 to define
 sys_arch_prctl

On Tue, Nov 08, 2016 at 10:39:50AM -0800, Kyle Huey wrote:

<--- Add commit message here.

> Signed-off-by: Kyle Huey <khuey@...ehuey.com>
> ---
>  arch/x86/kernel/process_64.c | 3 ++-
>  arch/x86/um/syscalls_64.c    | 3 ++-
>  2 files changed, 4 insertions(+), 2 deletions(-)

...

>  void arch_switch_to(struct task_struct *to)
>  {
>  	if ((to->thread.arch.fs == 0) || (to->mm == NULL))
>  		return;
> 
> base-commit: e3a00f68e426df24a5fb98956a1bd1b23943aa1e

This looks like some tracking thing. It gets ignored by tools though...

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--