From patchwork Thu Sep 12 17:26:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?q?Michal_Such=C3=A1nek?= X-Patchwork-Id: 11143427 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 02F93112B for ; Thu, 12 Sep 2019 17:27:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DFE5C214AF for ; Thu, 12 Sep 2019 17:27:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387472AbfILR0g (ORCPT ); Thu, 12 Sep 2019 13:26:36 -0400 Received: from mx2.suse.de ([195.135.220.15]:53830 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S2387432AbfILR0g (ORCPT ); Thu, 12 Sep 2019 13:26:36 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 73A42B7DA; Thu, 12 Sep 2019 17:26:33 +0000 (UTC) From: Michal Suchanek To: linuxppc-dev@lists.ozlabs.org Cc: Michal Suchanek , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman , Alexander Viro , Nicholas Piggin , Christophe Leroy , Breno Leitao , Arnd Bergmann , Heiko Carstens , Greg Kroah-Hartman , Firoz Khan , Thomas Gleixner , Joel Stanley , Hari Bathini , Michael Neuling , Andrew Donnellan , Russell Currey , Diana Craciun , "Eric W. Biederman" , David Hildenbrand , Allison Randal , Andrew Morton , Madhavan Srinivasan , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Subject: [PATCH v8 1/7] powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro Date: Thu, 12 Sep 2019 19:26:03 +0200 Message-Id: <2e5c00c054f5a1c8ea4b5944685940af0665bfc1.1568306311.git.msuchanek@suse.de> X-Mailer: git-send-email 2.23.0 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org This partially reverts commit caf6f9c8a326 ("asm-generic: Remove unneeded __ARCH_WANT_SYS_LLSEEK macro") When CONFIG_COMPAT is disabled on ppc64 the kernel does not build. There is resistance to both removing the llseek syscall from the 64bit syscall tables and building the llseek interface unconditionally. Link: https://lore.kernel.org/lkml/20190828151552.GA16855@infradead.org/ Link: https://lore.kernel.org/lkml/20190829214319.498c7de2@naga/ Signed-off-by: Michal Suchanek Reviewed-by: Arnd Bergmann --- arch/powerpc/include/asm/unistd.h | 1 + fs/read_write.c | 3 ++- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index b0720c7c3fcf..700fcdac2e3c 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -31,6 +31,7 @@ #define __ARCH_WANT_SYS_SOCKETCALL #define __ARCH_WANT_SYS_FADVISE64 #define __ARCH_WANT_SYS_GETPGRP +#define __ARCH_WANT_SYS_LLSEEK #define __ARCH_WANT_SYS_NICE #define __ARCH_WANT_SYS_OLD_GETRLIMIT #define __ARCH_WANT_SYS_OLD_UNAME diff --git a/fs/read_write.c b/fs/read_write.c index 5bbf587f5bc1..89aa2701dbeb 100644 --- a/fs/read_write.c +++ b/fs/read_write.c @@ -331,7 +331,8 @@ COMPAT_SYSCALL_DEFINE3(lseek, unsigned int, fd, compat_off_t, offset, unsigned i } #endif -#if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) +#if !defined(CONFIG_64BIT) || defined(CONFIG_COMPAT) || \ + defined(__ARCH_WANT_SYS_LLSEEK) SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high, unsigned long, offset_low, loff_t __user *, result, unsigned int, whence)