From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 8ADC2C7EE23 for ; Sun, 26 Feb 2023 14:50:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230109AbjBZOu1 (ORCPT ); Sun, 26 Feb 2023 09:50:27 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45152 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229988AbjBZOtU (ORCPT ); Sun, 26 Feb 2023 09:49:20 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CFB9B65B9; Sun, 26 Feb 2023 06:48:06 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 51252B80C69; Sun, 26 Feb 2023 14:47:55 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 56188C433D2; Sun, 26 Feb 2023 14:47:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1677422874; bh=WYkdGVS0vINTRDqZUVyCLihrwarBLyPRWPVvLsWnlwg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Zzi1UI6Cp6I/RSozCJ7WVuKNNQuzhdJeuq9h4KzzMYuYX7oaDKbxRESsr3OBL0XkN JhEktF5lmAX7mSYwrlKzCCi79SDx7nDZ9nG/dNDtNS0I1GrZgv8pK8KtsC/HpRNjDG B3yrJHiAEGIg/AYCoVlSZi1jvejscYtPssuTPMEMpn0kCsPDxGSNleFMym2vgIDE6S s8jIkalg+PJbfOheEUVnDR9hiZyuOjP62vMZar8hiUpLgMianbjtiDjW0DWruO00zA oGdXot2Z2B5lvG9HYzaB+Bv9EdQgl8UFyq1l8ooh4qQ1T0L7WagMSEoJFkgO5cjixR +n+ro78DdYTrA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Vasily Gorbik , Alexander Gordeev , Heiko Carstens , Sasha Levin , gerald.schaefer@linux.ibm.com, linux-s390@vger.kernel.org Subject: [PATCH AUTOSEL 6.1 27/49] s390/mm,ptdump: avoid Kasan vs Memcpy Real markers swapping Date: Sun, 26 Feb 2023 09:46:27 -0500 Message-Id: <20230226144650.826470-27-sashal@kernel.org> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230226144650.826470-1-sashal@kernel.org> References: <20230226144650.826470-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Vasily Gorbik [ Upstream commit 05178996e1a77e2a4664536e6d101a086a905034 ] ---[ Real Memory Copy Area Start ]--- 0x001bfffffffff000-0x001c000000000000 4K PTE I ---[ Kasan Shadow Start ]--- ---[ Real Memory Copy Area End ]--- 0x001c000000000000-0x001c000200000000 8G PMD RW NX ... ---[ Kasan Shadow End ]--- ptdump does a stable sort of markers. Move kasan markers after memcpy real to avoid swapping. Reviewed-by: Alexander Gordeev Signed-off-by: Vasily Gorbik Signed-off-by: Heiko Carstens Signed-off-by: Sasha Levin --- arch/s390/mm/dump_pagetables.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c index 9953819d79596..ba5f802688781 100644 --- a/arch/s390/mm/dump_pagetables.c +++ b/arch/s390/mm/dump_pagetables.c @@ -33,10 +33,6 @@ enum address_markers_idx { #endif IDENTITY_AFTER_NR, IDENTITY_AFTER_END_NR, -#ifdef CONFIG_KASAN - KASAN_SHADOW_START_NR, - KASAN_SHADOW_END_NR, -#endif VMEMMAP_NR, VMEMMAP_END_NR, VMALLOC_NR, @@ -47,6 +43,10 @@ enum address_markers_idx { ABS_LOWCORE_END_NR, MEMCPY_REAL_NR, MEMCPY_REAL_END_NR, +#ifdef CONFIG_KASAN + KASAN_SHADOW_START_NR, + KASAN_SHADOW_END_NR, +#endif }; static struct addr_marker address_markers[] = { @@ -62,10 +62,6 @@ static struct addr_marker address_markers[] = { #endif [IDENTITY_AFTER_NR] = {(unsigned long)_end, "Identity Mapping Start"}, [IDENTITY_AFTER_END_NR] = {0, "Identity Mapping End"}, -#ifdef CONFIG_KASAN - [KASAN_SHADOW_START_NR] = {KASAN_SHADOW_START, "Kasan Shadow Start"}, - [KASAN_SHADOW_END_NR] = {KASAN_SHADOW_END, "Kasan Shadow End"}, -#endif [VMEMMAP_NR] = {0, "vmemmap Area Start"}, [VMEMMAP_END_NR] = {0, "vmemmap Area End"}, [VMALLOC_NR] = {0, "vmalloc Area Start"}, @@ -76,6 +72,10 @@ static struct addr_marker address_markers[] = { [ABS_LOWCORE_END_NR] = {0, "Lowcore Area End"}, [MEMCPY_REAL_NR] = {0, "Real Memory Copy Area Start"}, [MEMCPY_REAL_END_NR] = {0, "Real Memory Copy Area End"}, +#ifdef CONFIG_KASAN + [KASAN_SHADOW_START_NR] = {KASAN_SHADOW_START, "Kasan Shadow Start"}, + [KASAN_SHADOW_END_NR] = {KASAN_SHADOW_END, "Kasan Shadow End"}, +#endif { -1, NULL } }; -- 2.39.0