Messages in this thread Patch in this message | | | From | Mathieu Desnoyers <> | Subject | [RFC PATCH v2 6/9] arm: allocate sys_membarrier system call number | Date | Mon, 7 Sep 2015 12:15:53 -0400 |
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[ 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: Russell King <linux@arm.linux.org.uk> --- arch/arm/include/asm/unistd.h | 2 +- arch/arm/include/uapi/asm/unistd.h | 1 + arch/arm/kernel/calls.S | 1 + 3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/arm/include/asm/unistd.h b/arch/arm/include/asm/unistd.h index 32640c4..d93876c 100644 --- a/arch/arm/include/asm/unistd.h +++ b/arch/arm/include/asm/unistd.h @@ -19,7 +19,7 @@ * This may need to be greater than __NR_last_syscall+1 in order to * account for the padding in the syscall table */ -#define __NR_syscalls (388) +#define __NR_syscalls (389) /* * *NOTE*: This is a ghost syscall private to the kernel. Only the diff --git a/arch/arm/include/uapi/asm/unistd.h b/arch/arm/include/uapi/asm/unistd.h index 0c3f5a0..436bb32 100644 --- a/arch/arm/include/uapi/asm/unistd.h +++ b/arch/arm/include/uapi/asm/unistd.h @@ -414,6 +414,7 @@ #define __NR_memfd_create (__NR_SYSCALL_BASE+385) #define __NR_bpf (__NR_SYSCALL_BASE+386) #define __NR_execveat (__NR_SYSCALL_BASE+387) +#define __NR_membarrier (__NR_SYSCALL_BASE+388) /* * The following SWIs are ARM private. diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S index 05745eb..310699c 100644 --- a/arch/arm/kernel/calls.S +++ b/arch/arm/kernel/calls.S @@ -397,6 +397,7 @@ /* 385 */ CALL(sys_memfd_create) CALL(sys_bpf) CALL(sys_execveat) + CALL(sys_membarrier) #ifndef syscalls_counted .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls #define syscalls_counted -- 1.9.1
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