rename div64_64 to div64_u64

Rename div64_64 to div64_u64 to make it consistent with the other divide
functions, so it clearly includes the type of the divide.  Move its definition
to math64.h as currently no architecture overrides the generic implementation.
 They can still override it of course, but the duplicated declarations are
avoided.

Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
Cc: Avi Kivity <avi@qumranet.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

3 files changed, 7 insertions, 8 deletions

diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 6df073240135..318b81100623 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1,4 +1,3 @@
-
 /*
  * kvm_ia64.c: Basic KVM suppport On Itanium series processors
  *
@@ -431,7 +430,7 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu)
         if (itc_diff < 0)
                 itc_diff = -itc_diff;
 
-        expires = div64_64(itc_diff, cyc_per_usec);
+        expires = div64_u64(itc_diff, cyc_per_usec);
         kt = ktime_set(0, 1000 * expires);
         vcpu->arch.ht_active = 1;
         hrtimer_start(p_ht, kt, HRTIMER_MODE_ABS);
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 361e31611276..4c943eabacc3 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -35,7 +35,7 @@
 #include "i8254.h"
 
 #ifndef CONFIG_X86_64
-#define mod_64(x, y) ((x) - (y) * div64_64(x, y))
+#define mod_64(x, y) ((x) - (y) * div64_u64(x, y))
 #else
 #define mod_64(x, y) ((x) % (y))
 #endif
@@ -60,8 +60,8 @@ static u64 muldiv64(u64 a, u32 b, u32 c)
         rl = (u64)u.l.low * (u64)b;
         rh = (u64)u.l.high * (u64)b;
         rh += (rl >> 32);
-        res.l.high = div64_64(rh, c);
-        res.l.low = div64_64(((mod_64(rh, c) << 32) + (rl & 0xffffffff)), c);
+        res.l.high = div64_u64(rh, c);
+        res.l.low = div64_u64(((mod_64(rh, c) << 32) + (rl & 0xffffffff)), c);
         return res.ll;
 }
 
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 57ac4e4c556a..36809d79788b 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -25,13 +25,13 @@
 #include <linux/hrtimer.h>
 #include <linux/io.h>
 #include <linux/module.h>
+#include <linux/math64.h>
 #include <asm/processor.h>
 #include <asm/msr.h>
 #include <asm/page.h>
 #include <asm/current.h>
 #include <asm/apicdef.h>
 #include <asm/atomic.h>
-#include <asm/div64.h>
 #include "irq.h"
 
 #define PRId64 "d"
@@ -526,8 +526,8 @@ static u32 apic_get_tmcct(struct kvm_lapic *apic)
         } else
                 passed = ktime_sub(now, apic->timer.last_update);
 
-        counter_passed = div64_64(ktime_to_ns(passed),
-                                  (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
+        counter_passed = div64_u64(ktime_to_ns(passed),
+                                   (APIC_BUS_CYCLE_NS * apic->timer.divide_count));
 
         if (counter_passed > tmcct) {
                 if (unlikely(!apic_lvtt_period(apic))) {