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 X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A3F1BC433E0 for ; Fri, 15 May 2020 17:19:49 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 696F0206D8 for ; Fri, 15 May 2020 17:19:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="VqTGxL58" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 696F0206D8 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arm.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=T+ZuBAzXxdDKuuUlHKOO13Ba/qMmajS2cpN4F/VPOd4=; b=VqTGxL58MrYOsa tEjrLfLXfl29tvZtRKSCnEM+qaNm2NWtEGPwkJwzN2q8/Eg7X8Qy5wmMQ92i7qcCoJWLe3T3WMvI9 ijAS6MinMukwF4oMGgGpjHtw/ECdat1tejeM66YHaKxN8VCVNod0GtyHS/HdfaJjJYmLXeDfR3fJv /ws1xBWtpgYZv2VqnpA/MhZwreA82yhZXmfrIHV8GSZ+2etxgk3tX1ifAC/lWj3UPxfgcwrE4hbJP H1kso0YzoiZLg4t44CT/mScz24e8HdVSkLPJ6DkJGK/rMSGvdo5XiPw1p4w5VhA57/PmIwa4r5d7p MvCMlDeOg/R1ptjKGiFQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZdzw-0005A8-3q; Fri, 15 May 2020 17:19:48 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1jZdww-00025U-O8 for linux-arm-kernel@lists.infradead.org; Fri, 15 May 2020 17:16:45 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6B1EB1042; Fri, 15 May 2020 10:16:42 -0700 (PDT) Received: from localhost.localdomain (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 8A82B3F305; Fri, 15 May 2020 10:16:40 -0700 (PDT) From: Catalin Marinas To: linux-arm-kernel@lists.infradead.org Subject: [PATCH v4 10/26] mm: Introduce arch_calc_vm_flag_bits() Date: Fri, 15 May 2020 18:15:56 +0100 Message-Id: <20200515171612.1020-11-catalin.marinas@arm.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200515171612.1020-1-catalin.marinas@arm.com> References: <20200515171612.1020-1-catalin.marinas@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200515_101643_050209_6871B942 X-CRM114-Status: UNSURE ( 9.29 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, Szabolcs Nagy , Andrey Konovalov , Kevin Brodsky , Peter Collingbourne , linux-mm@kvack.org, Andrew Morton , Vincenzo Frascino , Will Deacon , Dave P Martin Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Kevin Brodsky Similarly to arch_calc_vm_prot_bits(), introduce a dummy arch_calc_vm_flag_bits() invoked from calc_vm_flag_bits(). This macro can be overridden by architectures to insert specific VM_* flags derived from the mmap() MAP_* flags. Signed-off-by: Kevin Brodsky Signed-off-by: Catalin Marinas Cc: Andrew Morton --- Notes: v2: - Updated the comment above arch_calc_vm_prot_bits(). - Changed author since this patch had already been posted (internally). include/linux/mman.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/include/linux/mman.h b/include/linux/mman.h index 4b08e9c9c538..15c1162b9d65 100644 --- a/include/linux/mman.h +++ b/include/linux/mman.h @@ -74,13 +74,17 @@ static inline void vm_unacct_memory(long pages) } /* - * Allow architectures to handle additional protection bits + * Allow architectures to handle additional protection and flag bits */ #ifndef arch_calc_vm_prot_bits #define arch_calc_vm_prot_bits(prot, pkey) 0 #endif +#ifndef arch_calc_vm_flag_bits +#define arch_calc_vm_flag_bits(flags) 0 +#endif + #ifndef arch_vm_get_page_prot #define arch_vm_get_page_prot(vm_flags) __pgprot(0) #endif @@ -131,7 +135,8 @@ calc_vm_flag_bits(unsigned long flags) return _calc_vm_trans(flags, MAP_GROWSDOWN, VM_GROWSDOWN ) | _calc_vm_trans(flags, MAP_DENYWRITE, VM_DENYWRITE ) | _calc_vm_trans(flags, MAP_LOCKED, VM_LOCKED ) | - _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ); + _calc_vm_trans(flags, MAP_SYNC, VM_SYNC ) | + arch_calc_vm_flag_bits(flags); } unsigned long vm_commit_limit(void); _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel