Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6

[pandora-kernel.git] / arch / sparc64 / kernel / process.c

diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 7d75cd4..a114151 100644 (file)
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -28,6 +28,7 @@
 #include <linux/reboot.h>
 #include <linux/delay.h>
 #include <linux/compat.h>
+#include <linux/tick.h>
 #include <linux/init.h>
 
 #include <asm/oplib.h>
@@ -88,12 +89,14 @@ void cpu_idle(void)
        set_thread_flag(TIF_POLLING_NRFLAG);
 
        while(1) {
-               if (need_resched()) {
-                       preempt_enable_no_resched();
-                       schedule();
-                       preempt_disable();
-               }
-               sparc64_yield();
+               tick_nohz_stop_sched_tick();
+               while (!need_resched())
+                       sparc64_yield();
+               tick_nohz_restart_sched_tick();
+
+               preempt_enable_no_resched();
+               schedule();
+               preempt_disable();
        }
 }
 
@@ -413,8 +416,13 @@ void flush_thread(void)
        struct thread_info *t = current_thread_info();
        struct mm_struct *mm;
 
-       if (t->flags & _TIF_ABI_PENDING)
-               t->flags ^= (_TIF_ABI_PENDING | _TIF_32BIT);
+       if (test_ti_thread_flag(t, TIF_ABI_PENDING)) {
+               clear_ti_thread_flag(t, TIF_ABI_PENDING);
+               if (test_ti_thread_flag(t, TIF_32BIT))
+                       clear_ti_thread_flag(t, TIF_32BIT);
+               else
+                       set_ti_thread_flag(t, TIF_32BIT);
+       }
 
        mm = t->task->mm;
        if (mm)