Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Martin Schwidefsky:
 "Two patches to save some memory if CONFIG_NR_CPUS is large, a changed
  default for the use of compare-and-delay, and a couple of bug fixes"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/spinlock: disabled compare-and-delay by default
  s390/mm: align 64-bit PIE binaries to 4GB
  s390/cacheinfo: coding style changes
  s390/cacheinfo: fix shared cpu masks
  s390/smp: reduce size of struct pcpu
  s390/topology: convert cpu_topology array to per cpu variable
  s390/topology: delay initialization of topology cpu masks
  s390/vdso: fix clock_gettime for CLOCK_THREAD_CPUTIME_ID, -2 and -3

1 files changed, 8 insertions, 16 deletions

diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index c4fbb9527c5c..b1453a2ae1ca 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -18,15 +18,15 @@ struct cpu_topology_s390 {
         cpumask_t book_mask;
 };
 
-extern struct cpu_topology_s390 cpu_topology[NR_CPUS];
+DECLARE_PER_CPU(struct cpu_topology_s390, cpu_topology);
 
-#define topology_physical_package_id(cpu)       (cpu_topology[cpu].socket_id)
-#define topology_thread_id(cpu)                 (cpu_topology[cpu].thread_id)
-#define topology_thread_cpumask(cpu)            (&cpu_topology[cpu].thread_mask)
-#define topology_core_id(cpu)                   (cpu_topology[cpu].core_id)
-#define topology_core_cpumask(cpu)              (&cpu_topology[cpu].core_mask)
-#define topology_book_id(cpu)                   (cpu_topology[cpu].book_id)
-#define topology_book_cpumask(cpu)              (&cpu_topology[cpu].book_mask)
+#define topology_physical_package_id(cpu) (per_cpu(cpu_topology, cpu).socket_id)
+#define topology_thread_id(cpu)           (per_cpu(cpu_topology, cpu).thread_id)
+#define topology_thread_cpumask(cpu)      (&per_cpu(cpu_topology, cpu).thread_mask)
+#define topology_core_id(cpu)             (per_cpu(cpu_topology, cpu).core_id)
+#define topology_core_cpumask(cpu)        (&per_cpu(cpu_topology, cpu).core_mask)
+#define topology_book_id(cpu)             (per_cpu(cpu_topology, cpu).book_id)
+#define topology_book_cpumask(cpu)        (&per_cpu(cpu_topology, cpu).book_mask)
 
 #define mc_capable() 1
 
@@ -51,14 +51,6 @@ static inline void topology_expect_change(void) { }
 #define POLARIZATION_VM         (2)
 #define POLARIZATION_VH         (3)
 
-#ifdef CONFIG_SCHED_BOOK
-void s390_init_cpu_topology(void);
-#else
-static inline void s390_init_cpu_topology(void)
-{
-};
-#endif
-
 #include <asm-generic/topology.h>
 
 #endif /* _ASM_S390_TOPOLOGY_H */