Merge branch 'for-next' into for-linus

* pcpu_chunk_page_occupied() doesn't exist in for-next.
* pcpu_chunk_addr_search() updated to use raw_smp_processor_id().

Conflicts:
	mm/percpu.c

2 files changed, 11 insertions, 30 deletions

diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 408d60b4f75b..f7ad8719d02d 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -1,37 +1,21 @@
 #ifndef __ARCH_S390_PERCPU__
 #define __ARCH_S390_PERCPU__
 
-#include <linux/compiler.h>
-#include <asm/lowcore.h>
-
 /*
  * s390 uses its own implementation for per cpu data, the offset of
  * the cpu local data area is cached in the cpu's lowcore memory.
- * For 64 bit module code s390 forces the use of a GOT slot for the
- * address of the per cpu variable. This is needed because the module
- * may be more than 4G above the per cpu area.
  */
-#if defined(__s390x__) && defined(MODULE)
-
-#define SHIFT_PERCPU_PTR(ptr,offset) (({                        \
-        extern int simple_identifier_##var(void);       \
-        unsigned long *__ptr;                           \
-        asm ( "larl %0, %1@GOTENT"              \
-            : "=a" (__ptr) : "X" (ptr) );               \
-        (typeof(ptr))((*__ptr) + (offset));     }))
-
-#else
-
-#define SHIFT_PERCPU_PTR(ptr, offset) (({                               \
-        extern int simple_identifier_##var(void);               \
-        unsigned long __ptr;                                    \
-        asm ( "" : "=a" (__ptr) : "0" (ptr) );                  \
-        (typeof(ptr)) (__ptr + (offset)); }))
+#define __my_cpu_offset S390_lowcore.percpu_offset
 
+/*
+ * For 64 bit module code, the module may be more than 4G above the
+ * per cpu area, use weak definitions to force the compiler to
+ * generate external references.
+ */
+#if defined(CONFIG_SMP) && defined(__s390x__) && defined(MODULE)
+#define ARCH_NEEDS_WEAK_PER_CPU
 #endif
 
-#define __my_cpu_offset S390_lowcore.percpu_offset
-
 #include <asm-generic/percpu.h>
 
 #endif /* __ARCH_S390_PERCPU__ */
diff --git a/arch/s390/kernel/vmlinux.lds.S b/arch/s390/kernel/vmlinux.lds.S
index a53db23ee092..82415c75b996 100644
--- a/arch/s390/kernel/vmlinux.lds.S
+++ b/arch/s390/kernel/vmlinux.lds.S
@@ -157,13 +157,10 @@ SECTIONS
 
         _end = . ;
 
-        /* Sections to be discarded */
-        /DISCARD/ : {
-                EXIT_DATA
-                *(.exitcall.exit)
-        }
-
         /* Debugging sections.  */
         STABS_DEBUG
         DWARF_DEBUG
+
+        /* Sections to be discarded */
+        DISCARDS
 }