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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable 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 1C3CEC43387 for ; Fri, 18 Jan 2019 16:28:32 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 9C09020850 for ; Fri, 18 Jan 2019 16:28:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9C09020850 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=arndb.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 43h5wY19yqzDr2w for ; Sat, 19 Jan 2019 03:28:29 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=none (mailfrom) smtp.mailfrom=arndb.de (client-ip=217.72.192.75; helo=mout.kundenserver.de; envelope-from=arnd@arndb.de; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=arndb.de Received: from mout.kundenserver.de (mout.kundenserver.de [217.72.192.75]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 43h5ld3GhlzDr1q for ; Sat, 19 Jan 2019 03:20:44 +1100 (AEDT) Received: from wuerfel.lan ([109.192.41.194]) by mrelayeu.kundenserver.de (mreue109 [212.227.15.145]) with ESMTPA (Nemesis) id 1MKKd7-1gWQWS33t9-00LmRg; Fri, 18 Jan 2019 17:19:23 +0100 From: Arnd Bergmann To: y2038@lists.linaro.org, linux-api@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org Subject: [PATCH v2 06/29] ARM: add migrate_pages() system call Date: Fri, 18 Jan 2019 17:18:12 +0100 Message-Id: <20190118161835.2259170-7-arnd@arndb.de> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20190118161835.2259170-1-arnd@arndb.de> References: <20190118161835.2259170-1-arnd@arndb.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:o3bTb4elB3z+286rn9+b5BP7tK9ifOmWUW+jka5ZcLRoBINPDJf u8PIZcP2oUy73YnUflDiwxkNfXIDgII5Pyhk+V14swnaTnFx5ocmSc3GvbMfPHBlAdH2hOO HnGoII6EJed1+C6r0RoTYwRkjRvEbyOrLcmhc5DagzjWZlLv5X7xA8BSuap5Ej3vVq2kBkR J33viKVBFQ1JhizF8SI/A== X-UI-Out-Filterresults: notjunk:1;V03:K0:3TL+IMUlpzQ=:W4KhIatfhW7FMFXhanW/DA GRXuaIVZT5yLKobF9hxOAr0++qzuCRc1CvEdJhCRmyjg3tVnuVTea/UC1uvUl5+b8WbMQGZ2y IhAzxeBsFmWL53O9WpTTqoDT/nboxRQDmswH0/f/GTKPMN2z3vZwVUlRhzoSirbpF+lnxfjOZ sN/4WLTGYuHpbqrOxsstykpo2y8LRe1POgk4jbusH6bQF90n6M4iRhVrGRIOrVw2bdttMMlAA uT0OtEXxzSfFi0CYobAlGKnZqnyNhrd53D0fMCInpqHILWFd1DtjVcSRRThpH/sAtDi0bB10+ Ugb1IEqZY/t6Vwsm27UEtY2WdRDnob3jplYpxp7LEYnA9+MmRRxsSQGX4rwbfAh61hF01Z6w6 c1gGmtntitfEHrg2cn23IhBqYw4oKw2FRJOxB9tDFAw7RHOCw9DS4DZeuAH/963xwTtIZQzNY 1aXUG6Znslmrc13+enLNNpHHdqS95uRqE0RLgCHtmqVJSvSINH3VB0iFWhAu52D9FeScou6Jt DMCljPSLrh3jHaukqC84MTlYT6tYVfPoAwYvF7QgVEd2kgvyMgY2cHJMjfNpvBVodJDtgelWN WyT2nqJHgERRpJagCPwbdtU6mcbVNfRzxffHnacQ4vUxt4V/sJi/kqkoPRbuRzxPSp7atXUfB 1YBkP5nZaJQ1KkngOFAwcAZDCXzHTa7u9SVJNuPiXS2Wwsi0eYe4gZnZnIKeg8MQ2APOz+PXy XOmiTdMMxuVgn48bnD8Kw1Cy5XKVXUIjyQPYnQ== 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: dalias@libc.org, linux-ia64@vger.kernel.org, linux-sh@vger.kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, jcmvbkbc@gmail.com, deepa.kernel@gmail.com, hpa@zytor.com, sparclinux@vger.kernel.org, linux-s390@vger.kernel.org, deller@gmx.de, x86@kernel.org, linux@armlinux.org.uk, mingo@redhat.com, geert@linux-m68k.org, firoz.khan@linaro.org, mattst88@gmail.com, fenghua.yu@intel.com, Arnd Bergmann , heiko.carstens@de.ibm.com, linux-fsdevel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, luto@kernel.org, tglx@linutronix.de, linux-arm-kernel@lists.infradead.org, monstr@monstr.eu, tony.luck@intel.com, linux-parisc@vger.kernel.org, netdev@vger.kernel.org, linux-mips@vger.kernel.org, paul.burton@mips.com, ebiederm@xmission.com, linux-alpha@vger.kernel.org, schwidefsky@de.ibm.com, akpm@linux-foundation.org, linuxppc-dev@lists.ozlabs.org, davem@davemloft.net Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" The migrate_pages system call has an assigned number on all architectures except ARM. When it got added initially in commit d80ade7b3231 ("ARM: Fix warning: #warning syscall migrate_pages not implemented"), it was intentionally left out based on the observation that there are no 32-bit ARM NUMA systems. However, there are now arm64 NUMA machines that can in theory run 32-bit kernels (actually enabling NUMA there would require additional work) as well as 32-bit user space on 64-bit kernels, so that argument is no longer very strong. Assigning the number lets us use the system call on 64-bit kernels as well as providing a more consistent set of syscalls across architectures. Signed-off-by: Arnd Bergmann --- arch/arm/include/asm/unistd.h | 1 - arch/arm/tools/syscall.tbl | 1 + arch/arm64/include/asm/unistd.h | 2 +- arch/arm64/include/asm/unistd32.h | 2 ++ 4 files changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index 88ef2ce1f69a..d713587dfcf4 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -45,7 +45,6 @@ * Unimplemented (or alternatively implemented) syscalls */ #define __IGNORE_fadvise64_64 -#define __IGNORE_migrate_pages #ifdef __ARM_EABI__ /* diff --git a/arch/arm/tools/syscall.tbl b/arch/arm/tools/syscall.tbl index 8edf93b4490f..86de9eb34296 100644 --- a/arch/arm/tools/syscall.tbl +++ b/arch/arm/tools/syscall.tbl @@ -414,3 +414,4 @@ 397 common statx sys_statx 398 common rseq sys_rseq 399 common io_pgetevents sys_io_pgetevents +400 common migrate_pages sys_migrate_pages diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index a7b1fc58ffdf..261216c3336e 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -44,7 +44,7 @@ #define __ARM_NR_compat_set_tls (__ARM_NR_COMPAT_BASE + 5) #define __ARM_NR_COMPAT_END (__ARM_NR_COMPAT_BASE + 0x800) -#define __NR_compat_syscalls 400 +#define __NR_compat_syscalls 401 #endif #define __ARCH_WANT_SYS_CLONE diff --git a/arch/arm64/include/asm/unistd32.h b/arch/arm64/include/asm/unistd32.h index 04ee190b90fe..f15bcbacb8f6 100644 --- a/arch/arm64/include/asm/unistd32.h +++ b/arch/arm64/include/asm/unistd32.h @@ -821,6 +821,8 @@ __SYSCALL(__NR_statx, sys_statx) __SYSCALL(__NR_rseq, sys_rseq) #define __NR_io_pgetevents 399 __SYSCALL(__NR_io_pgetevents, compat_sys_io_pgetevents) +#define __NR_migrate_pages 400 +__SYSCALL(__NR_migrate_pages, compat_sys_migrate_pages) /* * Please add new compat syscalls above this comment and update -- 2.20.0