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=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 2382AC433FE for ; Thu, 3 Dec 2020 23:39:23 +0000 (UTC) Received: from ml01.01.org (ml01.01.org [198.145.21.10]) (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 B8BFA224B2 for ; Thu, 3 Dec 2020 23:39:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B8BFA224B2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linux-foundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvdimm-bounces@lists.01.org Received: from ml01.vlan13.01.org (localhost [IPv6:::1]) by ml01.01.org (Postfix) with ESMTP id 210D0100EC1E6; Thu, 3 Dec 2020 15:39:22 -0800 (PST) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=akpm@linux-foundation.org; receiver= Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ml01.01.org (Postfix) with ESMTPS id 135C1100EC1E1 for ; Thu, 3 Dec 2020 15:39:19 -0800 (PST) Date: Thu, 3 Dec 2020 15:39:16 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1607038759; bh=zDBJmA1njD9c5R9U97XtgqdT27wAv2IVLfk1nPS0FJM=; h=From:To:Cc:Subject:In-Reply-To:References:From; b=mS6E8T6sd+XV4qfkYaIC7AzHKw/6zG99ExlvCv9CM2GiRif+p2YkZqPRApdyQ8W6k 4GQb78gRhspuJjIgU7TpCoScNXnKT9kg7Cb/IBT70e6ZKsRZ74kZc1jLZ9uATm4O+j kPi+AoMzreC1GgZnwmGefOwVW3qrUNdYbrXPS6vE= From: Andrew Morton To: Mike Rapoport Subject: Re: [PATCH v14 09/10] arch, mm: wire up memfd_secret system call were relevant Message-Id: <20201203153916.91f0f80dcb8a0fa81fc341fa@linux-foundation.org> In-Reply-To: <20201203062949.5484-10-rppt@kernel.org> References: <20201203062949.5484-1-rppt@kernel.org> <20201203062949.5484-10-rppt@kernel.org> X-Mailer: Sylpheed 3.5.1 (GTK+ 2.24.31; x86_64-pc-linux-gnu) Mime-Version: 1.0 Message-ID-Hash: ZQGUJTAMHHTLC2GSNVI3OK7GT37HPOSB X-Message-ID-Hash: ZQGUJTAMHHTLC2GSNVI3OK7GT37HPOSB X-MailFrom: akpm@linux-foundation.org X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation CC: Alexander Viro , Andy Lutomirski , Arnd Bergmann , Borislav Petkov , Catalin Marinas , Christopher Lameter , Dave Hansen , David Hildenbrand , Elena Reshetova , "H. Peter Anvin" , Ingo Molnar , James Bottomley , "Kirill A. Shutemov" , Matthew Wilcox , Mark Rutland , Mike Rapoport , Michael Kerrisk , Palmer Dabbelt , Paul Walmsley , Peter Zijlstra , Rick Edgecombe , Roman Gushchin , Shakeel Butt , Shuah Khan , Thomas Gleixner , Tycho Andersen , Will Deacon , linux-api@vger.kernel.org, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org, linux-riscv@lists.infradead.org, x86@kernel.org, Palmer Dabbelt X-Mailman-Version: 3.1.1 Precedence: list List-Id: "Linux-nvdimm developer list." Archived-At: List-Archive: List-Help: List-Post: List-Subscribe: List-Unsubscribe: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit On Thu, 3 Dec 2020 08:29:48 +0200 Mike Rapoport wrote: > From: Mike Rapoport > > Wire up memfd_secret system call on architectures that define > ARCH_HAS_SET_DIRECT_MAP, namely arm64, risc-v and x86. > > ... > > --- a/include/uapi/asm-generic/unistd.h > +++ b/include/uapi/asm-generic/unistd.h > @@ -861,9 +861,13 @@ __SYSCALL(__NR_faccessat2, sys_faccessat2) > __SYSCALL(__NR_process_madvise, sys_process_madvise) > #define __NR_watch_mount 441 > __SYSCALL(__NR_watch_mount, sys_watch_mount) > +#ifdef __ARCH_WANT_MEMFD_SECRET > +#define __NR_memfd_secret 442 > +__SYSCALL(__NR_memfd_secret, sys_memfd_secret) > +#endif Why do we add the ifdef? Can't we simply define the syscall on all architectures and let sys_ni do its thing? _______________________________________________ Linux-nvdimm mailing list -- linux-nvdimm@lists.01.org To unsubscribe send an email to linux-nvdimm-leave@lists.01.org