From: Yury Norov <ynorov@caviumnetworks.com>
To: Catalin Marinas <catalin.marinas@arm.com>,
        Arnd Bergmann <arnd@arndb.de>, linux-arm-kernel@lists.infradead.org,
        linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org
Cc: Yury Norov <ynorov@caviumnetworks.com>,
        Adam Borowski <kilobyte@angband.pl>, Andreas Schwab <schwab@suse.de>,
        Andrew Pinski <pinskia@gmail.com>,
        Bamvor Zhangjian <bamvor.zhangjian@huawei.com>,
        Chris Metcalf <cmetcalf@ezchip.com>,
        Chris Metcalf <cmetcalf@mellanox.com>,
        Florian Weimer <fweimer@redhat.com>,
        Heiko Carstens <heiko.carstens@de.ibm.com>,
        James Hogan <james.hogan@imgtec.com>,
        James Morse <james.morse@arm.com>,
        Joseph Myers <joseph@codesourcery.com>,
        Maxim Kuvyrkov <maxim.kuvyrkov@linaro.org>, Nathan_Lynch@mentor.com,
        Prasun.Kapoor@caviumnetworks.com,
        Ramana Radhakrishnan <ramana.gcc@googlemail.com>,
        Steve Ellcey <sellcey@caviumnetworks.com>,
        Alexander Graf <agraf@suse.de>, Mark Brown <broonie@kernel.org>,
        christoph.muellner@theobroma-systems.com, davem@davemloft.net,
        Geert Uytterhoeven <geert@linux-m68k.org>,
        Alexey Klimov <klimov.linux@gmail.com>, linyongting@huawei.com,
        manuel.montezelo@gmail.com, philipp.tomsich@theobroma-systems.com,
        schwidefsky@de.ibm.com, szabolcs.nagy@arm.com,
        zhouchengming1@huawei.com
Subject: [PATCH 01/20] compat ABI: use non-compat openat and open_by_handle_at variants
Date: Mon, 19 Jun 2017 18:49:44 +0300
Message-Id: <20170619155003.13218-2-ynorov@caviumnetworks.com>
In-Reply-To: <20170619155003.13218-1-ynorov@caviumnetworks.com>
References: <20170619155003.13218-1-ynorov@caviumnetworks.com>
MIME-Version: 1.0
Content-Type: text/plain
SpamDiagnosticOutput: 1:99
SpamDiagnosticMetadata: NSPM
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Jun 2017 15:50:25.4237 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN1PR0701MB1871
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 2186
Lines: 53

The only difference is that non-compat version forces O_LARGEFILE,
and it should be the default behaviour for all architectures, as
we are going to drop the support of 32-bit userspace off_t.

The exception is tile32 that continues with compat version of syscalls.

Signed-off-by: Yury Norov <ynorov@caviumnetworks.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Chris Metcalf <cmetcalf@ezchip.com> [for tile]
---
 arch/tile/kernel/compat.c         | 3 +++
 include/uapi/asm-generic/unistd.h | 5 ++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/tile/kernel/compat.c b/arch/tile/kernel/compat.c
index bdaf71d31a4a..3b7853c59395 100644
--- a/arch/tile/kernel/compat.c
+++ b/arch/tile/kernel/compat.c
@@ -103,6 +103,9 @@ COMPAT_SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned int, offset_high,
 #define compat_sys_readahead sys32_readahead
 #define sys_llseek compat_sys_llseek
 
+#define sys_openat		compat_sys_openat
+#define sys_open_by_handle_at	compat_sys_open_by_handle_at
+
 /* Call the assembly trampolines where necessary. */
 #define compat_sys_rt_sigreturn _compat_sys_rt_sigreturn
 #define sys_clone _sys_clone
diff --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index 061185a5eb51..429dd335def6 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -178,7 +178,7 @@ __SYSCALL(__NR_fchownat, sys_fchownat)
 #define __NR_fchown 55
 __SYSCALL(__NR_fchown, sys_fchown)
 #define __NR_openat 56
-__SC_COMP(__NR_openat, sys_openat, compat_sys_openat)
+__SYSCALL(__NR_openat, sys_openat)
 #define __NR_close 57
 __SYSCALL(__NR_close, sys_close)
 #define __NR_vhangup 58
@@ -675,8 +675,7 @@ __SYSCALL(__NR_fanotify_mark, sys_fanotify_mark)
 #define __NR_name_to_handle_at         264
 __SYSCALL(__NR_name_to_handle_at, sys_name_to_handle_at)
 #define __NR_open_by_handle_at         265
-__SC_COMP(__NR_open_by_handle_at, sys_open_by_handle_at, \
-	  compat_sys_open_by_handle_at)
+__SYSCALL(__NR_open_by_handle_at, sys_open_by_handle_at)
 #define __NR_clock_adjtime 266
 __SC_COMP(__NR_clock_adjtime, sys_clock_adjtime, compat_sys_clock_adjtime)
 #define __NR_syncfs 267
-- 
2.11.0