uml: eliminate hz()

Eliminate hz() since its only purpose was to provide a kernel-space constant
to userspace code.  This can be done instead by providing the constant
directly through kernel_constants.h.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 47efe90..5462469 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -392,8 +392,9 @@
 	*data = ((struct stub_data) { .offset	= MMAP_OFFSET(new_offset),
 				      .fd	= new_fd,
 				      .timer    = ((struct itimerval)
-					            { { 0, 1000000 / hz() },
-						      { 0, 1000000 / hz() }})});
+					            { { 0, 1000000 / UM_HZ },
+						      { 0, 1000000 / UM_HZ }})
+				 });
 	err = ptrace_setregs(pid, thread_regs);
 	if (err < 0)
 		panic("copy_context_skas0 : PTRACE_SETREGS failed, "
diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c
index f22fcdf..5939653 100644
--- a/arch/um/os-Linux/time.c
+++ b/arch/um/os-Linux/time.c
@@ -8,14 +8,13 @@
 #include <signal.h>
 #include <time.h>
 #include <sys/time.h>
-#include "kern_util.h"
 #include "kern_constants.h"
 #include "os.h"
 #include "user.h"
 
 int set_interval(int is_virtual)
 {
-	int usec = 1000000/hz();
+	int usec = 1000000/UM_HZ;
 	int timer_type = is_virtual ? ITIMER_VIRTUAL : ITIMER_REAL;
 	struct itimerval interval = ((struct itimerval) { { 0, usec },
 							  { 0, usec } });
@@ -43,8 +42,8 @@
 void switch_timers(int to_real)
 {
 	struct itimerval disable = ((struct itimerval) { { 0, 0 }, { 0, 0 }});
-	struct itimerval enable = ((struct itimerval) { { 0, 1000000/hz() },
-							{ 0, 1000000/hz() }});
+	struct itimerval enable = ((struct itimerval) { { 0, 1000000/UM_HZ },
+							{ 0, 1000000/UM_HZ }});
 	int old, new;
 
 	if (to_real) {