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[70.30.145.63]) by smtp.gmail.com with ESMTPSA id h26-20020ac8515a000000b003b82cb8748dsm5986545qtn.96.2023.02.05.15.17.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Feb 2023 15:17:07 -0800 (PST) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: peterx@redhat.com, Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org Subject: [PATCH 1/3] mm/arm: Define private VM_FAULT_* reasons from top bits Date: Sun, 5 Feb 2023 18:17:02 -0500 Message-Id: <20230205231704.909536-2-peterx@redhat.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20230205231704.909536-1-peterx@redhat.com> References: <20230205231704.909536-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The current definition already collapse with the generic definition of vm_fault_reason. Move the private definitions to allocate bits from the top of uint so they won't collapse anymore. Signed-off-by: Peter Xu --- arch/arm/mm/fault.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c index 2418f1efabd8..67879d995835 100644 --- a/arch/arm/mm/fault.c +++ b/arch/arm/mm/fault.c @@ -216,8 +216,12 @@ void do_bad_area(unsigned long addr, unsigned int fsr,= struct pt_regs *regs) } =20 #ifdef CONFIG_MMU -#define VM_FAULT_BADMAP ((__force vm_fault_t)0x010000) -#define VM_FAULT_BADACCESS ((__force vm_fault_t)0x020000) +/* + * Allocate private vm_fault_reason from top. Please make sure it won't + * collide with vm_fault_reason. + */ +#define VM_FAULT_BADMAP ((__force vm_fault_t)0x80000000) +#define VM_FAULT_BADACCESS ((__force vm_fault_t)0x40000000) =20 static inline bool is_permission_fault(unsigned int fsr) { --=20 2.37.3 From nobody Sat Sep 13 04:05:23 2025 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 BDDA5C636CC for ; Sun, 5 Feb 2023 23:18:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229670AbjBEXSL (ORCPT ); Sun, 5 Feb 2023 18:18:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58140 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229537AbjBEXSC (ORCPT ); Sun, 5 Feb 2023 18:18:02 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 17DB819691 for ; Sun, 5 Feb 2023 15:17:12 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1675639032; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=P5/Ww/5/bhqPqutkGRybIHLtU9jqdfakTNy4g0j2iQk=; b=Q2IrcXKinh5UW/cS5BHwRhE7QHpgFMfdia8drwNkRJuUqGLqoLQQzK49ao6JT8ezXocSWb Hv4VmnzirRr62mNFcdLgodGI1TncMhPQD7PgO3l+Mf9K94soxq6F/ba/SVdIv2aEBVK0Dn r2FQzJ8RiQLk8vF9Gpr+RSqCJ65YGb8= Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-311-A9tmxP4xPr2FrXKLQM24WA-1; Sun, 05 Feb 2023 18:17:10 -0500 X-MC-Unique: A9tmxP4xPr2FrXKLQM24WA-1 Received: by mail-qk1-f200.google.com with SMTP id j10-20020a05620a288a00b0070630ecfd9bso6927732qkp.20 for ; Sun, 05 Feb 2023 15:17:10 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=P5/Ww/5/bhqPqutkGRybIHLtU9jqdfakTNy4g0j2iQk=; b=bN/QYlW4VzVYFxaT6mtk5oAMxdxZ62g4M9xCdtWJU2+DFlTdy3LOifb4f8MWyZzKer mVV1vVXSyVBrHmMZKnlv8lP2SHMhUsrchaa99W9fM0ZLZ8xUFB1fTAN8v2NOst4NtvhG tBDxcTB0YQyHYFz7nUERwINpoFAIy0OfN1rvChvpISSx8ka4F5ZayV0nk4+z9qHHhEWe kuckKfM2JqSPcwwIgyA/8MqB856SdpKKjUIPoxmCA62LLYDKqRrUFjiO1enLiT8JJjoz nHvCkbRiPvia4KbEeEg6qlKvg1HukXD7+zxd6TeiTAcK/Xa/EoGX67PuOcoM1tsix69D 9Siw== X-Gm-Message-State: AO0yUKWBZ6M9vVSZDnnLX5BI9tU3CiXICNfVbW+8HS1i/ogsp8rz72Js O2o6WxfP6Px1cdN0mSmCHnMhowlTviMlCmHugxjQYofXujo927o8VecXFf7xLQxiM53kefg3Qe2 IZlwB+9rg6Wz2rXW0LUmrj7eO X-Received: by 2002:ac8:5813:0:b0:3b9:a4d4:7f37 with SMTP id g19-20020ac85813000000b003b9a4d47f37mr37363479qtg.3.1675639030437; Sun, 05 Feb 2023 15:17:10 -0800 (PST) X-Google-Smtp-Source: AK7set8mrnK+ikirixTmDtvR78/fRtminiJLSrpX/G80o7vhvBjyiJhn1+xWU/af4TGpWMpz/q/ScQ== X-Received: by 2002:ac8:5813:0:b0:3b9:a4d4:7f37 with SMTP id g19-20020ac85813000000b003b9a4d47f37mr37363454qtg.3.1675639030152; Sun, 05 Feb 2023 15:17:10 -0800 (PST) Received: from x1n.redhat.com (bras-base-aurron9127w-grc-56-70-30-145-63.dsl.bell.ca. [70.30.145.63]) by smtp.gmail.com with ESMTPSA id h26-20020ac8515a000000b003b82cb8748dsm5986545qtn.96.2023.02.05.15.17.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Feb 2023 15:17:09 -0800 (PST) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: peterx@redhat.com, Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org Subject: [PATCH 2/3] mm/arm64: Define private VM_FAULT_* reasons from top bits Date: Sun, 5 Feb 2023 18:17:03 -0500 Message-Id: <20230205231704.909536-3-peterx@redhat.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20230205231704.909536-1-peterx@redhat.com> References: <20230205231704.909536-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The current definition already collapse with the generic definition of vm_fault_reason. Move the private definitions to allocate bits from the top of uint so they won't collapse anymore. Signed-off-by: Peter Xu --- arch/arm64/mm/fault.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 596f46dabe4e..44fd16f58f94 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -480,8 +480,12 @@ static void do_bad_area(unsigned long far, unsigned lo= ng esr, } } =20 -#define VM_FAULT_BADMAP 0x010000 -#define VM_FAULT_BADACCESS 0x020000 +/* + * Allocate private vm_fault_reason from top. Please make sure it won't + * collide with vm_fault_reason. + */ +#define VM_FAULT_BADMAP ((__force vm_fault_t)0x80000000) +#define VM_FAULT_BADACCESS ((__force vm_fault_t)0x40000000) =20 static vm_fault_t __do_page_fault(struct mm_struct *mm, unsigned long addr, unsigned int mm_flags, unsigned long vm_flags, --=20 2.37.3 From nobody Sat Sep 13 04:05:23 2025 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 C3389C636CD for ; Sun, 5 Feb 2023 23:18:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229500AbjBEXS4 (ORCPT ); Sun, 5 Feb 2023 18:18:56 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58460 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229551AbjBEXSk (ORCPT ); Sun, 5 Feb 2023 18:18:40 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2EB9F19694 for ; Sun, 5 Feb 2023 15:17:16 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1675639035; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=O+iHbljQE4cWri51QLXa4Xz+3mOqMYYEFGlGW+CbZSY=; b=d0u/kci3SmpyKeK+1bUK6fjGm+okJNWkRBZ9wjAgT6+IxX9HtyawhmwzebeMMVRWZbBbAA ro7HQB+/wu6P0WGc1DBtxrmNq4l31jDk2BcuO/V2wmGHo4O0N/rb3NWfooaTaUuGg96lyf XKY/nObhEdjEGMVQu5JE9gYM/lWSHGU= Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_128_GCM_SHA256) id us-mta-488-yOKTGlCyPCGhDhMcTnprHA-1; Sun, 05 Feb 2023 18:17:13 -0500 X-MC-Unique: yOKTGlCyPCGhDhMcTnprHA-1 Received: by mail-qk1-f200.google.com with SMTP id s7-20020a05620a0bc700b006e08208eb31so6824285qki.3 for ; Sun, 05 Feb 2023 15:17:13 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=O+iHbljQE4cWri51QLXa4Xz+3mOqMYYEFGlGW+CbZSY=; b=0izwM4dUjiIJW5BaB57NngPuugDw4ZAUf0miLTORP3uHM22CgZPVY2p1bmhcpSaKNt Ms/4+VHYhiWL5rECjooinsF987QOPoB3B/AgowQW7gt/2nk+Y+4RWC6D3874VTj15Vfq 1MYjCX3ZlzoQkO07vyH6xRSk3FDE7LVEWprKf7aJTPBXrDRRc17SmHZ9y+ETSqHmD4E1 wKAXeMGrWwhdGIGjUn6ZLhoNSSfnGMn78K11OtG9WFQWV3bvh2o5nr2QBmh202ffDxLU kCrh62bEzoHhmZkBxIeOK+R7nKIzhftiIHafTg4RPb4sgqCyxPQYrAv5ChfyF1gvgXiP /CYQ== X-Gm-Message-State: AO0yUKWeKHI7a3fir+fipQkZ73SwTn+UYBGpNL2ZaHWZjkHYiIpBt2hT xpScmEp7TcVRuNxMGdS+NofAPRD199fHbSsWUfdhntYedL8YntWSVoIkQeP8xXovQz12v/tcAnf 7+TdCSMvnkko0NZJEQnhq0Seu X-Received: by 2002:ac8:5a0c:0:b0:3b5:87db:f979 with SMTP id n12-20020ac85a0c000000b003b587dbf979mr36968152qta.5.1675639032210; Sun, 05 Feb 2023 15:17:12 -0800 (PST) X-Google-Smtp-Source: AK7set8/HJ9ylfEnCGuGjHiBabf9O5KRa6hhSOUhT6sDqtmC260VVR8y98Nl2i/0VhE4BCc93ILrBA== X-Received: by 2002:ac8:5a0c:0:b0:3b5:87db:f979 with SMTP id n12-20020ac85a0c000000b003b587dbf979mr36968130qta.5.1675639031977; Sun, 05 Feb 2023 15:17:11 -0800 (PST) Received: from x1n.redhat.com (bras-base-aurron9127w-grc-56-70-30-145-63.dsl.bell.ca. [70.30.145.63]) by smtp.gmail.com with ESMTPSA id h26-20020ac8515a000000b003b82cb8748dsm5986545qtn.96.2023.02.05.15.17.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Feb 2023 15:17:10 -0800 (PST) From: Peter Xu To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: peterx@redhat.com, Andrew Morton , linux-arm-kernel@lists.infradead.org, linux-s390@vger.kernel.org Subject: [PATCH 3/3] mm/s390: Define private VM_FAULT_* reasons from top bits Date: Sun, 5 Feb 2023 18:17:04 -0500 Message-Id: <20230205231704.909536-4-peterx@redhat.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20230205231704.909536-1-peterx@redhat.com> References: <20230205231704.909536-1-peterx@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" The current definition already collapse with the generic definition of vm_fault_reason. Move the private definitions to allocate bits from the top of uint so they won't collapse anymore. Signed-off-by: Peter Xu --- arch/s390/mm/fault.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index 9649d9382e0a..cebfbd6dcbaf 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -46,11 +46,15 @@ #define __SUBCODE_MASK 0x0600 #define __PF_RES_FIELD 0x8000000000000000ULL =20 -#define VM_FAULT_BADCONTEXT ((__force vm_fault_t) 0x010000) -#define VM_FAULT_BADMAP ((__force vm_fault_t) 0x020000) -#define VM_FAULT_BADACCESS ((__force vm_fault_t) 0x040000) -#define VM_FAULT_SIGNAL ((__force vm_fault_t) 0x080000) -#define VM_FAULT_PFAULT ((__force vm_fault_t) 0x100000) +/* + * Allocate private vm_fault_reason from top. Please make sure it won't + * collide with vm_fault_reason. + */ +#define VM_FAULT_BADCONTEXT ((__force vm_fault_t) 0x80000000) +#define VM_FAULT_BADMAP ((__force vm_fault_t) 0x40000000) +#define VM_FAULT_BADACCESS ((__force vm_fault_t) 0x20000000) +#define VM_FAULT_SIGNAL ((__force vm_fault_t) 0x10000000) +#define VM_FAULT_PFAULT ((__force vm_fault_t) 0x8000000) =20 enum fault_type { KERNEL_FAULT, --=20 2.37.3