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authorJeff Dike <jdike@addtoit.com>2007-10-16 01:27:21 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-16 09:43:08 -0700
commit532d0fa4d104ca3e37dd38bc5073376fcc3c2712 (patch)
treea2ece8d09bc22a616abd743c170b2a727c1d077e /arch/um
parentuml: more idiomatic parameter parsing (diff)
downloadlinux-dev-532d0fa4d104ca3e37dd38bc5073376fcc3c2712.tar.xz
linux-dev-532d0fa4d104ca3e37dd38bc5073376fcc3c2712.zip
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>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/include/common-offsets.h2
-rw-r--r--arch/um/include/kern_util.h1
-rw-r--r--arch/um/kernel/time.c5
-rw-r--r--arch/um/os-Linux/skas/process.c5
-rw-r--r--arch/um/os-Linux/time.c7
5 files changed, 8 insertions, 12 deletions
diff --git a/arch/um/include/common-offsets.h b/arch/um/include/common-offsets.h
index 439b91f141a5..54694693f400 100644
--- a/arch/um/include/common-offsets.h
+++ b/arch/um/include/common-offsets.h
@@ -32,3 +32,5 @@ DEFINE(UM_GFP_ATOMIC, GFP_ATOMIC);
DEFINE(crypto_tfm_ctx_offset, offsetof(struct crypto_tfm, __crt_ctx));
DEFINE(UM_THREAD_SIZE, THREAD_SIZE);
+
+DEFINE(UM_HZ, HZ);
diff --git a/arch/um/include/kern_util.h b/arch/um/include/kern_util.h
index 7e7e84e4bc53..74ce8e5370a6 100644
--- a/arch/um/include/kern_util.h
+++ b/arch/um/include/kern_util.h
@@ -64,7 +64,6 @@ extern void paging_init(void);
extern void init_flush_vm(void);
extern void *syscall_sp(void *t);
extern void syscall_trace(struct uml_pt_regs *regs, int entryexit);
-extern int hz(void);
extern unsigned int do_IRQ(int irq, struct uml_pt_regs *regs);
extern void interrupt_end(void);
extern void initial_thread_cb(void (*proc)(void *), void *arg);
diff --git a/arch/um/kernel/time.c b/arch/um/kernel/time.c
index 4fc8c2586b70..633b673d5778 100644
--- a/arch/um/kernel/time.c
+++ b/arch/um/kernel/time.c
@@ -11,11 +11,6 @@
#include "kern_util.h"
#include "os.h"
-int hz(void)
-{
- return HZ;
-}
-
/*
* Scheduler clock - returns current time in nanosec units.
*/
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 47efe9087eee..5462469f4ebf 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -392,8 +392,9 @@ int copy_context_skas0(unsigned long new_stack, int pid)
*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 f22fcdfd4250..5939653f99ea 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 disable_timer(void)
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) {