* [RFC PATCH 4/9] mips: allocate sys_membarrier system call number
[not found] <1440698215-8355-1-git-send-email-mathieu.desnoyers@efficios.com>
@ 2015-08-27 17:56 ` Mathieu Desnoyers
2015-08-28 7:40 ` Ralf Baechle
0 siblings, 1 reply; 3+ messages in thread
From: Mathieu Desnoyers @ 2015-08-27 17:56 UTC (permalink / raw)
To: Andrew Morton, linux-api
Cc: linux-kernel, Mathieu Desnoyers, Ralf Baechle, linux-mips
[ Untested on this architecture. To try it out: fetch linux-next/akpm,
apply this patch, build/run a membarrier-enabled kernel, and do make
kselftest. ]
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
CC: Andrew Morton <akpm@linux-foundation.org>
CC: linux-api@vger.kernel.org
CC: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
---
arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------
arch/mips/kernel/scall32-o32.S | 1 +
arch/mips/kernel/scall64-64.S | 1 +
arch/mips/kernel/scall64-n32.S | 1 +
arch/mips/kernel/scall64-o32.S | 1 +
5 files changed, 13 insertions(+), 6 deletions(-)
diff --git a/arch/mips/include/uapi/asm/unistd.h b/arch/mips/include/uapi/asm/unistd.h
index d0bdfaa..b107983 100644
--- a/arch/mips/include/uapi/asm/unistd.h
+++ b/arch/mips/include/uapi/asm/unistd.h
@@ -378,16 +378,17 @@
#define __NR_bpf (__NR_Linux + 355)
#define __NR_execveat (__NR_Linux + 356)
#define __NR_mlock2 (__NR_Linux + 357)
+#define __NR_membarrier (__NR_Linux + 358)
/*
* Offset of the last Linux o32 flavoured syscall
*/
-#define __NR_Linux_syscalls 357
+#define __NR_Linux_syscalls 358
#endif /* _MIPS_SIM == _MIPS_SIM_ABI32 */
#define __NR_O32_Linux 4000
-#define __NR_O32_Linux_syscalls 357
+#define __NR_O32_Linux_syscalls 358
#if _MIPS_SIM == _MIPS_SIM_ABI64
@@ -713,16 +714,17 @@
#define __NR_bpf (__NR_Linux + 315)
#define __NR_execveat (__NR_Linux + 316)
#define __NR_mlock2 (__NR_Linux + 317)
+#define __NR_membarrier (__NR_Linux + 318)
/*
* Offset of the last Linux 64-bit flavoured syscall
*/
-#define __NR_Linux_syscalls 317
+#define __NR_Linux_syscalls 318
#endif /* _MIPS_SIM == _MIPS_SIM_ABI64 */
#define __NR_64_Linux 5000
-#define __NR_64_Linux_syscalls 317
+#define __NR_64_Linux_syscalls 318
#if _MIPS_SIM == _MIPS_SIM_NABI32
@@ -1052,15 +1054,16 @@
#define __NR_bpf (__NR_Linux + 319)
#define __NR_execveat (__NR_Linux + 320)
#define __NR_mlock2 (__NR_Linux + 321)
+#define __NR_membarrier (__NR_Linux + 322)
/*
* Offset of the last N32 flavoured syscall
*/
-#define __NR_Linux_syscalls 321
+#define __NR_Linux_syscalls 322
#endif /* _MIPS_SIM == _MIPS_SIM_NABI32 */
#define __NR_N32_Linux 6000
-#define __NR_N32_Linux_syscalls 321
+#define __NR_N32_Linux_syscalls 322
#endif /* _UAPI_ASM_UNISTD_H */
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index b0b377a..9265542 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -600,3 +600,4 @@ EXPORT(sys_call_table)
PTR sys_bpf /* 4355 */
PTR sys_execveat
PTR sys_mlock2
+ PTR sys_membarrier
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index f12eb03..79d4fb0 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -437,4 +437,5 @@ EXPORT(sys_call_table)
PTR sys_bpf /* 5315 */
PTR sys_execveat
PTR sys_mlock2
+ PTR sys_membarrier
.size sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index ecdd65a..235892a 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -430,4 +430,5 @@ EXPORT(sysn32_call_table)
PTR sys_bpf
PTR compat_sys_execveat /* 6320 */
PTR sys_mlock2
+ PTR sys_membarrier
.size sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 7a8b2df..c051bd3 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -585,4 +585,5 @@ EXPORT(sys32_call_table)
PTR sys_bpf /* 4355 */
PTR compat_sys_execveat
PTR sys_mlock2
+ PTR sys_membarrier
.size sys32_call_table,.-sys32_call_table
--
1.9.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [RFC PATCH 4/9] mips: allocate sys_membarrier system call number
2015-08-27 17:56 ` [RFC PATCH 4/9] mips: allocate sys_membarrier system call number Mathieu Desnoyers
@ 2015-08-28 7:40 ` Ralf Baechle
2015-08-28 14:06 ` Mathieu Desnoyers
0 siblings, 1 reply; 3+ messages in thread
From: Ralf Baechle @ 2015-08-28 7:40 UTC (permalink / raw)
To: Mathieu Desnoyers; +Cc: Andrew Morton, linux-api, linux-kernel, linux-mips
On Thu, Aug 27, 2015 at 01:56:50PM -0400, Mathieu Desnoyers wrote:
> [ Untested on this architecture. To try it out: fetch linux-next/akpm,
> apply this patch, build/run a membarrier-enabled kernel, and do make
> kselftest. ]
>
> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> CC: Andrew Morton <akpm@linux-foundation.org>
> CC: linux-api@vger.kernel.org
> CC: Ralf Baechle <ralf@linux-mips.org>
> CC: linux-mips@linux-mips.org
> ---
> arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------
> arch/mips/kernel/scall32-o32.S | 1 +
> arch/mips/kernel/scall64-64.S | 1 +
> arch/mips/kernel/scall64-n32.S | 1 +
> arch/mips/kernel/scall64-o32.S | 1 +
> 5 files changed, 13 insertions(+), 6 deletions(-)
Looking good assuming there is no compat syscall required.
Ralf
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [RFC PATCH 4/9] mips: allocate sys_membarrier system call number
2015-08-28 7:40 ` Ralf Baechle
@ 2015-08-28 14:06 ` Mathieu Desnoyers
0 siblings, 0 replies; 3+ messages in thread
From: Mathieu Desnoyers @ 2015-08-28 14:06 UTC (permalink / raw)
To: Ralf Baechle; +Cc: Andrew Morton, linux-api, linux-kernel, linux-mips
----- On Aug 28, 2015, at 3:40 AM, Ralf Baechle ralf@linux-mips.org wrote:
> On Thu, Aug 27, 2015 at 01:56:50PM -0400, Mathieu Desnoyers wrote:
>
>> [ Untested on this architecture. To try it out: fetch linux-next/akpm,
>> apply this patch, build/run a membarrier-enabled kernel, and do make
>> kselftest. ]
>>
>> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
>> CC: Andrew Morton <akpm@linux-foundation.org>
>> CC: linux-api@vger.kernel.org
>> CC: Ralf Baechle <ralf@linux-mips.org>
>> CC: linux-mips@linux-mips.org
>> ---
>> arch/mips/include/uapi/asm/unistd.h | 15 +++++++++------
>> arch/mips/kernel/scall32-o32.S | 1 +
>> arch/mips/kernel/scall64-64.S | 1 +
>> arch/mips/kernel/scall64-n32.S | 1 +
>> arch/mips/kernel/scall64-o32.S | 1 +
>> 5 files changed, 13 insertions(+), 6 deletions(-)
>
> Looking good assuming there is no compat syscall required.
Indeed, sys_membarrier only takes two integer arguments, so no
compat syscall is required.
Thanks!
Mathieu
--
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com
^ permalink raw reply [flat|nested] 3+ messages in thread
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2015-08-27 17:56 ` [RFC PATCH 4/9] mips: allocate sys_membarrier system call number Mathieu Desnoyers
2015-08-28 7:40 ` Ralf Baechle
2015-08-28 14:06 ` Mathieu Desnoyers
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