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-rw-r--r--arch/s390/include/uapi/asm/unistd.h3
-rw-r--r--arch/s390/kernel/syscalls.S1
2 files changed, 3 insertions, 1 deletions
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index 1f4acec63d05..ff74d4976a6d 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -291,7 +291,8 @@
#define __NR_s390_pci_mmio_read 353
#define __NR_execveat 354
#define __NR_userfaultfd 355
-#define NR_syscalls 356
+#define __NR_membarrier 356
+#define NR_syscalls 357
/*
* There are some system calls that are not present on 64 bit, some
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index 0c91f37f8065..e4167bb73d61 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -364,3 +364,4 @@ SYSCALL(sys_s390_pci_mmio_write,compat_sys_s390_pci_mmio_write)
SYSCALL(sys_s390_pci_mmio_read,compat_sys_s390_pci_mmio_read)
SYSCALL(sys_execveat,compat_sys_execveat)
SYSCALL(sys_userfaultfd,sys_userfaultfd) /* 355 */
+SYSCALL(sys_membarrier,sys_membarrier)