uml: use *SEC_PER_*SEC constants
There are various uses of powers of 1000, plus the odd BILLION constant in the
time code. However, there are perfectly good definitions of *SEC_PER_*SEC in
linux/time.h which can be used instaed.
These are replaced directly in kernel code. Userspace code imports those
constants as UM_*SEC_PER_*SEC and uses these.
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 9936531..8548f12 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -294,8 +294,8 @@
if (getitimer(ITIMER_VIRTUAL, &timer))
printk("Failed to get itimer, errno = %d\n", errno);
- nsecs = timer.it_value.tv_sec * BILLION +
- timer.it_value.tv_usec * 1000;
+ nsecs = timer.it_value.tv_sec * UM_NSEC_PER_SEC +
+ timer.it_value.tv_usec * UM_NSEC_PER_USEC;
nsecs += os_nsecs();
while (1) {
@@ -347,8 +347,10 @@
block_signals();
(*sig_info[sig])(sig, regs);
unblock_signals();
- nsecs = timer.it_value.tv_sec * BILLION +
- timer.it_value.tv_usec * 1000;
+ nsecs = timer.it_value.tv_sec *
+ UM_NSEC_PER_SEC +
+ timer.it_value.tv_usec *
+ UM_NSEC_PER_USEC;
nsecs += os_nsecs();
break;
case SIGIO:
@@ -395,7 +397,7 @@
int copy_context_skas0(unsigned long new_stack, int pid)
{
- struct timeval tv = { .tv_sec = 0, .tv_usec = 1000000 / UM_HZ };
+ struct timeval tv = { .tv_sec = 0, .tv_usec = UM_USEC_PER_SEC / UM_HZ };
int err;
unsigned long current_stack = current_stub_stack();
struct stub_data *data = (struct stub_data *) current_stack;