common implementation of iterative div/mod

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / arch / x86 / xen / time.c

diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index c39e1a5aa241bcce2cb2a070d2dbbe391a28ae31..52b2e3856980ea6f26fa265b071fe4455d20104a 100644 (file)
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -12,6 +12,7 @@
 #include <linux/clocksource.h>
 #include <linux/clockchips.h>
 #include <linux/kernel_stat.h>
+#include <linux/math64.h>
 
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
@@ -150,11 +151,7 @@ static void do_stolen_accounting(void)
        if (stolen < 0)
                stolen = 0;
 
-       ticks = 0;
-       while (stolen >= NS_PER_TICK) {
-               ticks++;
-               stolen -= NS_PER_TICK;
-       }
+       ticks = iter_div_u64_rem(stolen, NS_PER_TICK, &stolen);
        __get_cpu_var(residual_stolen) = stolen;
        account_steal_time(NULL, ticks);
 
@@ -166,11 +163,7 @@ static void do_stolen_accounting(void)
        if (blocked < 0)
                blocked = 0;
 
-       ticks = 0;
-       while (blocked >= NS_PER_TICK) {
-               ticks++;
-               blocked -= NS_PER_TICK;
-       }
+       ticks = iter_div_u64_rem(blocked, NS_PER_TICK, &blocked);
        __get_cpu_var(residual_blocked) = blocked;
        account_steal_time(idle_task(smp_processor_id()), ticks);
 }