[PATCH] s390: fix compile with VIRT_CPU_ACCOUNTING=n

[pandora-kernel.git] / include / asm-s390 / system.h

diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h
index e3cb3ce..6a89dbb 100644 (file)
--- a/include/asm-s390/system.h
+++ b/include/asm-s390/system.h
@@ -104,29 +104,29 @@ static inline void restore_access_regs(unsigned int *acrs)
        prev = __switch_to(prev,next);                                       \
 } while (0)
 
-#define prepare_arch_switch(rq, next)  do { } while(0)
-#define task_running(rq, p)            ((rq)->curr == (p))
+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible.
+ *
+ * TODO: fill this in!
+ */
+static inline void sched_cacheflush(void)
+{
+}
 
 #ifdef CONFIG_VIRT_CPU_ACCOUNTING
-extern void account_user_vtime(struct task_struct *);
+extern void account_vtime(struct task_struct *);
+extern void account_tick_vtime(struct task_struct *);
 extern void account_system_vtime(struct task_struct *);
-
-#define finish_arch_switch(rq, prev) do {                                   \
-       set_fs(current->thread.mm_segment);                                  \
-       spin_unlock(&(rq)->lock);                                            \
-       account_system_vtime(prev);                                          \
-       local_irq_enable();                                                  \
-} while (0)
-
 #else
+#define account_vtime(x) do { /* empty */ } while (0)
+#endif
 
-#define finish_arch_switch(rq, prev) do {                                   \
+#define finish_arch_switch(prev) do {                                       \
        set_fs(current->thread.mm_segment);                                  \
-       spin_unlock_irq(&(rq)->lock);                                        \
+       account_vtime(prev);                                                 \
 } while (0)
 
-#endif
-
 #define nop() __asm__ __volatile__ ("nop")
 
 #define xchg(ptr,x) \