From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1752245AbdKZPyv (ORCPT <rfc822;w@1wt.eu>);
        Sun, 26 Nov 2017 10:54:51 -0500
Received: from mail-wr0-f196.google.com ([209.85.128.196]:40170 "EHLO
        mail-wr0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1751181AbdKZPyu (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Sun, 26 Nov 2017 10:54:50 -0500
X-Google-Smtp-Source: AGs4zMYQbwDapoyQCxj/8/XvVUmqGv4TQjV9DPjS+UgphsNNuo9H/itkcag2pnTU+aPLLztgXz10kg==
Date: Sun, 26 Nov 2017 16:54:46 +0100
From: Ingo Molnar <mingo@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org,
        Dave Hansen <dave.hansen@linux.intel.com>,
        Andy Lutomirski <luto@amacapital.net>,
        "H . Peter Anvin" <hpa@zytor.com>,
        Peter Zijlstra <peterz@infradead.org>, Borislav Petkov <bp@alien8.de>,
        Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [PATCH 24/43] x86/mm/kaiser: Mark per-cpu data structures
 required for entry/exit
Message-ID: <20171126155446.lr4kkih42mqo23vd@gmail.com>
References: <20171124172411.19476-1-mingo@kernel.org>
 <20171124172411.19476-25-mingo@kernel.org>
 <alpine.DEB.2.20.1711251807010.2316@nanos>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <alpine.DEB.2.20.1711251807010.2316@nanos>
User-Agent: NeoMutt/20170609 (1.8.3)
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org


* Thomas Gleixner <tglx@linutronix.de> wrote:

> On Fri, 24 Nov 2017, Ingo Molnar wrote:
> > diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
> > index aab4fe9f49f8..300090d1c209 100644
> > --- a/arch/x86/include/asm/desc.h
> > +++ b/arch/x86/include/asm/desc.h
> > @@ -46,7 +46,7 @@ struct gdt_page {
> >  	struct desc_struct gdt[GDT_ENTRIES];
> >  } __attribute__((aligned(PAGE_SIZE)));
> >  
> > -DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page);
> > +DECLARE_PER_CPU_PAGE_ALIGNED_USER_MAPPED(struct gdt_page, gdt_page);
> 
> This patch is obsolete. We have the alias mappings in the cpu_entry_area
> already.

Gone in the latest WIP.x86/mm.

Thanks,

	Ingo