Re: [PATCH v2 3/9] sparc/sparc64: allocate sys_membarrier system call number

[Mathieu Desnoyers <mathieu.desnoyers@efficios.com>]

----- On Sep 7, 2015, at 12:15 PM, Mathieu Desnoyers mathieu.desnoyers@efficios.com wrote:

> Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
> Acked-by: "David S. Miller" <davem@davemloft.net>
> CC: Andrew Morton <akpm@linux-foundation.org>
> CC: linux-api@vger.kernel.org
> CC: sparclinux@vger.kernel.org

Hi,

FYI, sys_membarrier has been merged upstream in Linux 4.3-rc1. Feel free
to wire up this system call on sparc.

Thanks!

Mathieu

> ---
> arch/sparc/include/uapi/asm/unistd.h | 3 ++-
> arch/sparc/kernel/systbls_32.S       | 2 +-
> arch/sparc/kernel/systbls_64.S       | 4 ++--
> 3 files changed, 5 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/sparc/include/uapi/asm/unistd.h
> b/arch/sparc/include/uapi/asm/unistd.h
> index 6f35f4d..efe9479 100644
> --- a/arch/sparc/include/uapi/asm/unistd.h
> +++ b/arch/sparc/include/uapi/asm/unistd.h
> @@ -416,8 +416,9 @@
> #define __NR_memfd_create	348
> #define __NR_bpf		349
> #define __NR_execveat		350
> +#define __NR_membarrier		351
> 
> -#define NR_syscalls		351
> +#define NR_syscalls		352
> 
> /* Bitmask values returned from kern_features system call.  */
> #define KERN_FEATURE_MIXED_MODE_STACK	0x00000001
> diff --git a/arch/sparc/kernel/systbls_32.S b/arch/sparc/kernel/systbls_32.S
> index e31a905..cc23b62 100644
> --- a/arch/sparc/kernel/systbls_32.S
> +++ b/arch/sparc/kernel/systbls_32.S
> @@ -87,4 +87,4 @@ sys_call_table:
> /*335*/	.long sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv,
> sys_process_vm_writev
> /*340*/	.long sys_ni_syscall, sys_kcmp, sys_finit_module, sys_sched_setattr,
> sys_sched_getattr
> /*345*/	.long sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create,
> sys_bpf
> -/*350*/	.long sys_execveat
> +/*350*/	.long sys_execveat, sys_membarrier
> diff --git a/arch/sparc/kernel/systbls_64.S b/arch/sparc/kernel/systbls_64.S
> index d72f76a..f229468 100644
> --- a/arch/sparc/kernel/systbls_64.S
> +++ b/arch/sparc/kernel/systbls_64.S
> @@ -88,7 +88,7 @@ sys_call_table32:
> 	.word sys_syncfs, compat_sys_sendmmsg, sys_setns, compat_sys_process_vm_readv,
> 	compat_sys_process_vm_writev
> /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr,
> sys_sched_getattr
> 	.word sys32_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
> -/*350*/	.word sys32_execveat
> +/*350*/	.word sys32_execveat, sys_membarrier
> 
> #endif /* CONFIG_COMPAT */
> 
> @@ -168,4 +168,4 @@ sys_call_table:
> 	.word sys_syncfs, sys_sendmmsg, sys_setns, sys_process_vm_readv,
> 	sys_process_vm_writev
> /*340*/	.word sys_kern_features, sys_kcmp, sys_finit_module, sys_sched_setattr,
> sys_sched_getattr
> 	.word sys_renameat2, sys_seccomp, sys_getrandom, sys_memfd_create, sys_bpf
> -/*350*/	.word sys64_execveat
> +/*350*/	.word sys64_execveat, sys_membarrier
> --
> 1.9.1

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com