From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f200.google.com (mail-pf0-f200.google.com [209.85.192.200]) by kanga.kvack.org (Postfix) with ESMTP id 80CC56B025F for ; Fri, 22 Jul 2016 01:50:45 -0400 (EDT) Received: by mail-pf0-f200.google.com with SMTP id y134so210916315pfg.1 for ; Thu, 21 Jul 2016 22:50:45 -0700 (PDT) Received: from ozlabs.org (ozlabs.org. [103.22.144.67]) by mx.google.com with ESMTPS id d5si14014398pfb.98.2016.07.21.22.50.44 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Jul 2016 22:50:44 -0700 (PDT) In-Reply-To: <20160405190547.GA12673@us.ibm.com> From: Michael Ellerman Subject: Re: [1/1] powerpc/mm: Add memory barrier in __hugepte_alloc() Message-Id: <3rwfrd6Vq2z9sxb@ozlabs.org> Date: Fri, 22 Jul 2016 15:50:41 +1000 (AEST) Sender: owner-linux-mm@kvack.org List-ID: To: Sukadev Bhattiprolu Cc: "Aneesh Kumar K.V" , linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, James Dykman On Tue, 2016-05-04 at 19:05:47 UTC, Sukadev Bhattiprolu wrote: > >From f7b73c6b4508fe9b141a43d92be2f9dd7d3c4a58 Mon Sep 17 00:00:00 2001 > From: Sukadev Bhattiprolu > Date: Thu, 24 Mar 2016 02:07:57 -0400 > Subject: [PATCH 1/1] powerpc/mm: Add memory barrier in __hugepte_alloc() > > __hugepte_alloc() uses kmem_cache_zalloc() to allocate a zeroed PTE > and proceeds to use the newly allocated PTE. Add a memory barrier to > make sure that the other CPUs see a properly initialized PTE. > > Based on a fix suggested by James Dykman. > > Reported-by: James Dykman > Signed-off-by: Aneesh Kumar K.V > Signed-off-by: Sukadev Bhattiprolu > Tested-by: James Dykman Applied to powerpc next, thanks. https://git.kernel.org/powerpc/c/0eab46be21449f1612791201aa cheers -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org