5 files changed, 18 insertions, 21 deletions

diff --git a/include/asm-generic/irq_regs.h b/include/asm-generic/irq_regs.h
index 5ae1d07d4a12..6bf9355fa7eb 100644
--- a/include/asm-generic/irq_regs.h
+++ b/include/asm-generic/irq_regs.h
@@ -22,15 +22,15 @@ DECLARE_PER_CPU(struct pt_regs *, __irq_regs);
 
 static inline struct pt_regs *get_irq_regs(void)
 {
-        return __get_cpu_var(__irq_regs);
+        return __this_cpu_read(__irq_regs);
 }
 
 static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
 {
-        struct pt_regs *old_regs, **pp_regs = &__get_cpu_var(__irq_regs);
+        struct pt_regs *old_regs;
 
-        old_regs = *pp_regs;
-        *pp_regs = new_regs;
+        old_regs = __this_cpu_read(__irq_regs);
+        __this_cpu_write(__irq_regs, new_regs);
         return old_regs;
 }
 
diff --git a/include/linux/elevator.h b/include/linux/elevator.h
index 4fd978e7eb83..4d857973d2c9 100644
--- a/include/linux/elevator.h
+++ b/include/linux/elevator.h
@@ -195,15 +195,9 @@ enum {
 /*
  * io context count accounting
  */
-#define elv_ioc_count_mod(name, __val)                          \
-        do {                                                    \
-                preempt_disable();                              \
-                __get_cpu_var(name) += (__val);                 \
-                preempt_enable();                               \
-        } while (0)
-
-#define elv_ioc_count_inc(name) elv_ioc_count_mod(name, 1)
-#define elv_ioc_count_dec(name) elv_ioc_count_mod(name, -1)
+#define elv_ioc_count_mod(name, __val) this_cpu_add(name, __val)
+#define elv_ioc_count_inc(name) this_cpu_inc(name)
+#define elv_ioc_count_dec(name) this_cpu_dec(name)
 
 #define elv_ioc_count_read(name)                                \
 ({                                                              \
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index b676c585574e..3a93f73a8acc 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -81,7 +81,8 @@ DECLARE_PER_CPU(int, __kmap_atomic_idx);
 
 static inline int kmap_atomic_idx_push(void)
 {
-        int idx = __get_cpu_var(__kmap_atomic_idx)++;
+        int idx = __this_cpu_inc_return(__kmap_atomic_idx) - 1;
+
 #ifdef CONFIG_DEBUG_HIGHMEM
         WARN_ON_ONCE(in_irq() && !irqs_disabled());
         BUG_ON(idx > KM_TYPE_NR);
@@ -91,16 +92,18 @@ static inline int kmap_atomic_idx_push(void)
 
 static inline int kmap_atomic_idx(void)
 {
-        return __get_cpu_var(__kmap_atomic_idx) - 1;
+        return __this_cpu_read(__kmap_atomic_idx) - 1;
 }
 
-static inline int kmap_atomic_idx_pop(void)
+static inline void kmap_atomic_idx_pop(void)
 {
-        int idx = --__get_cpu_var(__kmap_atomic_idx);
 #ifdef CONFIG_DEBUG_HIGHMEM
+        int idx = __this_cpu_dec_return(__kmap_atomic_idx);
+
         BUG_ON(idx < 0);
+#else
+        __this_cpu_dec(__kmap_atomic_idx);
 #endif
-        return idx;
 }
 
 #endif
diff --git a/include/linux/kernel_stat.h b/include/linux/kernel_stat.h
index ad54c846911b..44e83ba12b5b 100644
--- a/include/linux/kernel_stat.h
+++ b/include/linux/kernel_stat.h
@@ -47,7 +47,7 @@ extern unsigned long long nr_context_switches(void);
 
 #ifndef CONFIG_GENERIC_HARDIRQS
 #define kstat_irqs_this_cpu(irq) \
-        (kstat_this_cpu.irqs[irq])
+        (this_cpu_read(kstat.irqs[irq])
 
 struct irq_desc;
 
diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h
index e7d1b2e0070d..0c251e9f0507 100644
--- a/include/linux/kprobes.h
+++ b/include/linux/kprobes.h
@@ -303,12 +303,12 @@ struct hlist_head * kretprobe_inst_table_head(struct task_struct *tsk);
 /* kprobe_running() will just return the current_kprobe on this CPU */
 static inline struct kprobe *kprobe_running(void)
 {
-        return (__get_cpu_var(current_kprobe));
+        return (__this_cpu_read(current_kprobe));
 }
 
 static inline void reset_current_kprobe(void)
 {
-        __get_cpu_var(current_kprobe) = NULL;
+        __this_cpu_write(current_kprobe, NULL);
 }
 
 static inline struct kprobe_ctlblk *get_kprobe_ctlblk(void)