From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932692AbdJKI2L (ORCPT ); Wed, 11 Oct 2017 04:28:11 -0400 Received: from szxga05-in.huawei.com ([45.249.212.191]:7553 "EHLO szxga05-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757327AbdJKI2G (ORCPT ); Wed, 11 Oct 2017 04:28:06 -0400 From: Abbott Liu To: , , , , , , , , , , , , , , , , , , , , , , CC: , , , , , , , , , , Subject: [PATCH 09/11] Don't need to map the shadow of KASan's shadow memory Date: Wed, 11 Oct 2017 16:22:25 +0800 Message-ID: <20171011082227.20546-10-liuwenliang@huawei.com> X-Mailer: git-send-email 2.9.0 In-Reply-To: <20171011082227.20546-1-liuwenliang@huawei.com> References: <20171011082227.20546-1-liuwenliang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain X-Originating-IP: [10.67.54.198] X-CFilter-Loop: Reflected X-Mirapoint-Virus-RAPID-Raw: score=unknown(0), refid=str=0001.0A020205.59DDD540.00FF,ss=1,re=0.000,recu=0.000,reip=0.000,cl=1,cld=1,fgs=0, ip=0.0.0.0, so=2014-11-16 11:51:01, dmn=2013-03-21 17:37:32 X-Mirapoint-Loop-Id: 24030db4afae5875076c96ebb71f12ed Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Because the KASan's shadow memory don't need to track,so remove the mapping code in kasan_init. Cc: Andrey Ryabinin --- arch/arm/mm/kasan_init.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/arm/mm/kasan_init.c b/arch/arm/mm/kasan_init.c index 2bf0782..7cfdc39 100644 --- a/arch/arm/mm/kasan_init.c +++ b/arch/arm/mm/kasan_init.c @@ -218,10 +218,6 @@ void __init kasan_init(void) clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END); - kasan_populate_zero_shadow( - kasan_mem_to_shadow((void *)KASAN_SHADOW_START), - kasan_mem_to_shadow((void *)KASAN_SHADOW_END)); - kasan_populate_zero_shadow(kasan_mem_to_shadow((void *)VMALLOC_START), kasan_mem_to_shadow((void *)-1UL) + 1); -- 2.9.0