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 6D385C433FE for ; Thu, 14 Apr 2022 21:10:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235560AbiDNVM4 (ORCPT ); Thu, 14 Apr 2022 17:12:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346832AbiDNVMy (ORCPT ); Thu, 14 Apr 2022 17:12:54 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6EFCAD5EB6 for ; Thu, 14 Apr 2022 14:10:17 -0700 (PDT) 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 31DEBB82762 for ; Thu, 14 Apr 2022 21:10:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D93C8C385A5; Thu, 14 Apr 2022 21:10:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1649970615; bh=uPbT7ZTrU3urB0fP417QH8/EzN6T7bKVEqlEw9cgB2U=; h=Date:To:From:Subject:From; b=zrecyXT+mFvfix+Cc25ayxV3BSe/vABgoG2f4I/Om58CL3jEC6kJUWeufm7XaGBYI vNtMhgNwfnQ5M+NwTiOQM019eojxeBY6WLuiGlOTayn3HzzgQ/9uIGUQsy0cemeR8X swUffKwhj2NT3AOJh1smSI8kqDQg1WmtetBtfg+8= Date: Thu, 14 Apr 2022 14:10:14 -0700 To: mm-commits@vger.kernel.org, will@kernel.org, tglx@linutronix.de, paulus@samba.org, mpe@ellerman.id.au, mingo@redhat.com, khalid.aziz@oracle.com, hch@infradead.org, davem@davemloft.net, christophe.leroy@csgroup.eu, catalin.marinas@arm.com, anshuman.khandual@arm.com, akpm@linux-foundation.org From: Andrew Morton Subject: + mm-mmap-drop-arch_filter_pgprot.patch added to -mm tree Message-Id: <20220414211014.D93C8C385A5@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The patch titled Subject: mm/mmap: drop arch_filter_pgprot() has been added to the -mm tree. Its filename is mm-mmap-drop-arch_filter_pgprot.patch This patch should soon appear at https://ozlabs.org/~akpm/mmots/broken-out/mm-mmap-drop-arch_filter_pgprot.patch and later at https://ozlabs.org/~akpm/mmotm/broken-out/mm-mmap-drop-arch_filter_pgprot.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Anshuman Khandual Subject: mm/mmap: drop arch_filter_pgprot() There are no platforms left which subscribe ARCH_HAS_FILTER_PGPROT. Hence drop generic arch_filter_pgprot() and also config ARCH_HAS_FILTER_PGPROT. Link: https://lkml.kernel.org/r/20220414062125.609297-7-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Reviewed-by: Christophe Leroy Reviewed-by: Catalin Marinas Cc: Christoph Hellwig Cc: David S. Miller Cc: Ingo Molnar Cc: Khalid Aziz Cc: Michael Ellerman Cc: Paul Mackerras Cc: Thomas Gleixner Cc: Will Deacon Signed-off-by: Andrew Morton --- --- a/mm/Kconfig~mm-mmap-drop-arch_filter_pgprot +++ a/mm/Kconfig @@ -762,9 +762,6 @@ config ARCH_HAS_CURRENT_STACK_POINTER register alias named "current_stack_pointer", this config can be selected. -config ARCH_HAS_FILTER_PGPROT - bool - config ARCH_HAS_VM_GET_PAGE_PROT bool --- a/mm/mmap.c~mm-mmap-drop-arch_filter_pgprot +++ a/mm/mmap.c @@ -121,20 +121,11 @@ pgprot_t protection_map[16] __ro_after_i }; #ifndef CONFIG_ARCH_HAS_VM_GET_PAGE_PROT -#ifndef CONFIG_ARCH_HAS_FILTER_PGPROT -static inline pgprot_t arch_filter_pgprot(pgprot_t prot) -{ - return prot; -} -#endif - pgprot_t vm_get_page_prot(unsigned long vm_flags) { - pgprot_t ret = __pgprot(pgprot_val(protection_map[vm_flags & - (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) | + return __pgprot(pgprot_val(protection_map[vm_flags & + (VM_READ|VM_WRITE|VM_EXEC|VM_SHARED)]) | pgprot_val(arch_vm_get_page_prot(vm_flags))); - - return arch_filter_pgprot(ret); } EXPORT_SYMBOL(vm_get_page_prot); #endif /* CONFIG_ARCH_HAS_VM_GET_PAGE_PROT */ _ Patches currently in -mm which might be from anshuman.khandual@arm.com are mm-debug_vm_pgtable-drop-protection_map-usage.patch mm-mmap-clarify-protection_map-indices.patch mm-mmap-add-new-config-arch_has_vm_get_page_prot.patch powerpc-mm-enable-arch_has_vm_get_page_prot.patch arm64-mm-enable-arch_has_vm_get_page_prot.patch sparc-mm-enable-arch_has_vm_get_page_prot.patch mm-mmap-drop-arch_filter_pgprot.patch mm-mmap-drop-arch_vm_get_page_pgprot.patch