From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [PATCH 09/14] m68k: drop custom __access_ok() Date: Tue, 15 Feb 2022 07:29:42 +0100 Message-ID: <20220215062942.GA12551@lst.de> References: <20220214163452.1568807-1-arnd@kernel.org> <20220214163452.1568807-10-arnd@kernel.org> Mime-Version: 1.0 Return-path: Content-Disposition: inline In-Reply-To: List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Al Viro Cc: Arnd Bergmann , Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infrade On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true). 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 7D335C43219 for ; Tue, 15 Feb 2022 06:29:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234031AbiBOG37 (ORCPT ); Tue, 15 Feb 2022 01:29:59 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:42462 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232447AbiBOG36 (ORCPT ); Tue, 15 Feb 2022 01:29:58 -0500 Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DC64B11E3E9; Mon, 14 Feb 2022 22:29:48 -0800 (PST) Received: by verein.lst.de (Postfix, from userid 2407) id 11DDB68AA6; Tue, 15 Feb 2022 07:29:43 +0100 (CET) Date: Tue, 15 Feb 2022 07:29:42 +0100 From: Christoph Hellwig To: Al Viro Cc: Arnd Bergmann , Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: Re: [PATCH 09/14] m68k: drop custom __access_ok() Message-ID: <20220215062942.GA12551@lst.de> References: <20220214163452.1568807-1-arnd@kernel.org> <20220214163452.1568807-10-arnd@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) Precedence: bulk List-ID: X-Mailing-List: linux-api@vger.kernel.org On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true). From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Tue, 15 Feb 2022 06:29:42 +0000 Subject: Re: [PATCH 09/14] m68k: drop custom __access_ok() Message-Id: <20220215062942.GA12551@lst.de> List-Id: References: <20220214163452.1568807-1-arnd@kernel.org> <20220214163452.1568807-10-arnd@kernel.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Al Viro Cc: Arnd Bergmann , Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true). 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 77ADDC433EF for ; Tue, 15 Feb 2022 07:30:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=kwKRF8AVPTjmTZlX8W14pz6fXHy+x31IgzNzdTG8zaw=; b=sNe53VWDVkLHBG AEazR4CfVDiqbd+Z2k2LmSmppkZ82mL5erCHHjP0E5HXgN2wu0CxYPEss+gk5CS3a846qjTJLkfGq KxXNwx/5b15Xmn+XF8Nvo7aV4fgb6Yiohn7Xak0+1R0F1uUdK/KDXnvF+JLdDBzRfzNTysEkpg0Pl Cs2dSVAVrK40HN8k79kCfCee7aNv2vxAx8gOKrZ0IaInxCmrAX2W+orJHf2bmzbvj1viC8VWTqQbj ntFUweynOukLjdQL7R+LgljZrKhU7zFHNKngrfyy0UqJPZEsUQjv29lvWDUOhzD4MjXfM77MCl92i iSfvnIzrW2XR7wYUQIIQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJsI4-001DzI-0n; Tue, 15 Feb 2022 07:30:24 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJrLS-000eQy-Ni; Tue, 15 Feb 2022 06:29:53 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 11DDB68AA6; Tue, 15 Feb 2022 07:29:43 +0100 (CET) Date: Tue, 15 Feb 2022 07:29:42 +0100 From: Christoph Hellwig To: Al Viro Cc: Arnd Bergmann , Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: Re: [PATCH 09/14] m68k: drop custom __access_ok() Message-ID: <20220215062942.GA12551@lst.de> References: <20220214163452.1568807-1-arnd@kernel.org> <20220214163452.1568807-10-arnd@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220214_222950_950792_AE191FE3 X-CRM114-Status: UNSURE ( 9.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true). _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E6110C433F5 for ; Tue, 15 Feb 2022 06:29:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=IVpRGDVVL8yJUXeTimkWZlqMZljJMheC/y8iccIGE4g=; b=0nTJhuYCEn5HUs ld7niywoWgs+cwTYV0PExuxaKINZ6nVxuuDF1+pIgVCE8Rukwhw47hYMfHfVsTFVDBU8vpnqNrj5u gzK2mTXfvebJCrFmmQUwdg+gH6VuCiB8+de0QayqD+2wjzPny3FnAS6G4X1EQ/RGjFFiQZ6NSGjoO TCo7boc/DDiCXHDN01ScSVgfLXerMQF6mqhwFZDIxDr+GmlR3065pQZNYQVGBJg0hcl4wogwWvibl HqMnRVCrV/FoXn1vwHHmlOPPnw57H6GdwNSHEny3HVJysQ8RRMbu5ZBkaCXWVlfrsWqzPuORUM0xL mNhN0Y8hcY8w58awi42Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJrLX-000eW0-G8; Tue, 15 Feb 2022 06:29:55 +0000 Received: from verein.lst.de ([213.95.11.211]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nJrLS-000eQy-Ni; Tue, 15 Feb 2022 06:29:53 +0000 Received: by verein.lst.de (Postfix, from userid 2407) id 11DDB68AA6; Tue, 15 Feb 2022 07:29:43 +0100 (CET) Date: Tue, 15 Feb 2022 07:29:42 +0100 From: Christoph Hellwig To: Al Viro Cc: Arnd Bergmann , Linus Torvalds , Christoph Hellwig , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-api@vger.kernel.org, arnd@arndb.de, linux-kernel@vger.kernel.org, linux@armlinux.org.uk, will@kernel.org, guoren@kernel.org, bcain@codeaurora.org, geert@linux-m68k.org, monstr@monstr.eu, tsbogend@alpha.franken.de, nickhu@andestech.com, green.hu@gmail.com, dinguyen@kernel.org, shorne@gmail.com, deller@gmx.de, mpe@ellerman.id.au, peterz@infradead.org, mingo@redhat.com, mark.rutland@arm.com, hca@linux.ibm.com, dalias@libc.org, davem@davemloft.net, richard@nod.at, x86@kernel.org, jcmvbkbc@gmail.com, ebiederm@xmission.com, akpm@linux-foundation.org, ardb@kernel.org, linux-alpha@vger.kernel.org, linux-snps-arc@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, openrisc@lists.librecores.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-um@lists.infradead.org, linux-xtensa@linux-xtensa.org Subject: Re: [PATCH 09/14] m68k: drop custom __access_ok() Message-ID: <20220215062942.GA12551@lst.de> References: <20220214163452.1568807-1-arnd@kernel.org> <20220214163452.1568807-10-arnd@kernel.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220214_222950_950792_AE191FE3 X-CRM114-Status: UNSURE ( 9.76 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-snps-arc@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux on Synopsys ARC Processors List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-snps-arc" Errors-To: linux-snps-arc-bounces+linux-snps-arc=archiver.kernel.org@lists.infradead.org On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true). _______________________________________________ linux-snps-arc mailing list linux-snps-arc@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-snps-arc From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Date: Tue, 15 Feb 2022 07:29:42 +0100 Subject: [OpenRISC] [PATCH 09/14] m68k: drop custom __access_ok() In-Reply-To: References: <20220214163452.1568807-1-arnd@kernel.org> <20220214163452.1568807-10-arnd@kernel.org> Message-ID: <20220215062942.GA12551@lst.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: openrisc@lists.librecores.org On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true). 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E9186C433F5 for ; Tue, 15 Feb 2022 06:30:16 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4JyWRV6rPWz3cWF for ; Tue, 15 Feb 2022 17:30:14 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lst.de (client-ip=213.95.11.211; helo=verein.lst.de; envelope-from=hch@lst.de; receiver=) Received: from verein.lst.de (verein.lst.de [213.95.11.211]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4JyWR309Dqz305B for ; Tue, 15 Feb 2022 17:29:49 +1100 (AEDT) Received: by verein.lst.de (Postfix, from userid 2407) id 11DDB68AA6; Tue, 15 Feb 2022 07:29:43 +0100 (CET) Date: Tue, 15 Feb 2022 07:29:42 +0100 From: Christoph Hellwig To: Al Viro Subject: Re: [PATCH 09/14] m68k: drop custom __access_ok() Message-ID: <20220215062942.GA12551@lst.de> References: <20220214163452.1568807-1-arnd@kernel.org> <20220214163452.1568807-10-arnd@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.17 (2007-11-01) X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, dalias@libc.org, linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, peterz@infradead.org, linux-mips@vger.kernel.org, linux-mm@kvack.org, guoren@kernel.org, sparclinux@vger.kernel.org, linux-hexagon@vger.kernel.org, linux-riscv@lists.infradead.org, will@kernel.org, Christoph Hellwig , linux-arch@vger.kernel.org, linux-s390@vger.kernel.org, bcain@codeaurora.org, deller@gmx.de, x86@kernel.org, linux@armlinux.org.uk, linux-csky@vger.kernel.org, ardb@kernel.org, mingo@redhat.com, geert@linux-m68k.org, linux-snps-arc@lists.infradead.org, linux-xtensa@linux-xtensa.org, arnd@arndb.de, hca@linux.ibm.com, linux-alpha@vger.kernel.org, linux-um@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-m68k@lists.linux-m68k.org, openrisc@lists.librecores.org, green.hu@gmail.com, shorne@gmail.com, linux-arm-kernel@lists.infradead.org, Arnd Bergmann , monstr@monstr.eu, tsbogend@alpha.franken.de, linux-parisc@vger.kernel.org, nickhu@andestech.com, jcmvbkbc@gmail.com, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, dinguyen@kernel.org, ebiederm@xmission.com, richard@nod.at, akpm@linux-foundation.org, Linus Torvalds , davem@davemloft.net Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" On Tue, Feb 15, 2022 at 12:37:41AM +0000, Al Viro wrote: > Perhaps simply wrap that sucker into #ifdef CONFIG_CPU_HAS_ADDRESS_SPACES > (and trim the comment down to "coldfire and 68000 will pick generic > variant")? I wonder if we should invert CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE, select the separate address space config for s390, sparc64, non-coldfire m68k and mips with EVA and then just have one single access_ok for overlapping address space (as added by Arnd) and non-overlapping ones (always return true).