5 files changed, 46 insertions, 4 deletions

diff --git a/arch/s390/include/asm/ccwgroup.h b/arch/s390/include/asm/ccwgroup.h
index 6e670f88d125..ebc2913f9ee0 100644
--- a/arch/s390/include/asm/ccwgroup.h
+++ b/arch/s390/include/asm/ccwgroup.h
@@ -22,8 +22,8 @@ struct ccwgroup_device {
 /* public: */
         unsigned int count;
         struct device   dev;
-        struct ccw_device *cdev[0];
         struct work_struct ungroup_work;
+        struct ccw_device *cdev[0];
 };
 
 /**
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index d091aa1aaf11..bf9c823d4020 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -31,4 +31,23 @@
 #define SIGP_STATUS_INCORRECT_STATE     0x00000200UL
 #define SIGP_STATUS_NOT_RUNNING         0x00000400UL
 
+#ifndef __ASSEMBLY__
+
+static inline int __pcpu_sigp(u16 addr, u8 order, u32 parm, u32 *status)
+{
+        register unsigned int reg1 asm ("1") = parm;
+        int cc;
+
+        asm volatile(
+                "       sigp    %1,%2,0(%3)\n"
+                "       ipm     %0\n"
+                "       srl     %0,28\n"
+                : "=d" (cc), "+d" (reg1) : "d" (addr), "a" (order) : "cc");
+        if (status && cc == 1)
+                *status = reg1;
+        return cc;
+}
+
+#endif /* __ASSEMBLY__ */
+
 #endif /* __S390_ASM_SIGP_H */
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index 160779394096..21703f85b48d 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -7,6 +7,8 @@
 #ifndef __ASM_SMP_H
 #define __ASM_SMP_H
 
+#include <asm/sigp.h>
+
 #ifdef CONFIG_SMP
 
 #include <asm/lowcore.h>
@@ -50,9 +52,18 @@ static inline int smp_store_status(int cpu) { return 0; }
 static inline int smp_vcpu_scheduled(int cpu) { return 1; }
 static inline void smp_yield_cpu(int cpu) { }
 static inline void smp_yield(void) { }
-static inline void smp_stop_cpu(void) { }
 static inline void smp_fill_possible_mask(void) { }
 
+static inline void smp_stop_cpu(void)
+{
+        u16 pcpu = stap();
+
+        for (;;) {
+                __pcpu_sigp(pcpu, SIGP_STOP, 0, NULL);
+                cpu_relax();
+        }
+}
+
 #endif /* CONFIG_SMP */
 
 #ifdef CONFIG_HOTPLUG_CPU
diff --git a/arch/s390/include/asm/tlb.h b/arch/s390/include/asm/tlb.h
index c544b6f05d95..a25f09fbaf36 100644
--- a/arch/s390/include/asm/tlb.h
+++ b/arch/s390/include/asm/tlb.h
@@ -59,12 +59,23 @@ static inline void tlb_gather_mmu(struct mmu_gather *tlb,
         tlb->batch = NULL;
 }
 
-static inline void tlb_flush_mmu(struct mmu_gather *tlb)
+static inline void tlb_flush_mmu_tlbonly(struct mmu_gather *tlb)
 {
         __tlb_flush_mm_lazy(tlb->mm);
+}
+
+static inline void tlb_flush_mmu_free(struct mmu_gather *tlb)
+{
         tlb_table_flush(tlb);
 }
 
+
+static inline void tlb_flush_mmu(struct mmu_gather *tlb)
+{
+        tlb_flush_mmu_tlbonly(tlb);
+        tlb_flush_mmu_free(tlb);
+}
+
 static inline void tlb_finish_mmu(struct mmu_gather *tlb,
                                   unsigned long start, unsigned long end)
 {
diff --git a/arch/s390/include/uapi/asm/unistd.h b/arch/s390/include/uapi/asm/unistd.h
index 5eb5c9ddb120..3802d2d3a18d 100644
--- a/arch/s390/include/uapi/asm/unistd.h
+++ b/arch/s390/include/uapi/asm/unistd.h
@@ -282,7 +282,8 @@
 #define __NR_finit_module       344
 #define __NR_sched_setattr      345
 #define __NR_sched_getattr      346
-#define NR_syscalls 345
+#define __NR_renameat2          347
+#define NR_syscalls 348
 
 /* 
  * There are some system calls that are not present on 64 bit, some