diff options
| author |   Jeff Dike <jdike@addtoit.com> | 2007-10-16 01:27:28 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-16 09:43:08 -0700 |
| commit | 1a80521990a0e30e61a92994a009adc52161b070 (patch) | |
| tree | 3cf900adf9383ff68fd66cd74cfaf0e0ce483845 /arch/um/os-Linux | |
| parent | uml: eliminate SIGALRM (diff) | |
| download | linux-dev-1a80521990a0e30e61a92994a009adc52161b070.tar.xz linux-dev-1a80521990a0e30e61a92994a009adc52161b070.zip | |
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>
Diffstat (limited to '')
| -rw-r--r-- | arch/um/os-Linux/skas/process.c | 12 | ||||
| -rw-r--r-- | arch/um/os-Linux/time.c | 12 |
2 files changed, 13 insertions, 11 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c index 9936531a2620..8548f126d628 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/arch/um/os-Linux/skas/process.c @@ -294,8 +294,8 @@ void userspace(struct uml_pt_regs *regs) 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 @@ void userspace(struct uml_pt_regs *regs) 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 @@ __initcall(init_thread_regs); 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; diff --git a/arch/um/os-Linux/time.c b/arch/um/os-Linux/time.c index 574b134f0502..e34e1effe0f5 100644 --- a/arch/um/os-Linux/time.c +++ b/arch/um/os-Linux/time.c @@ -14,7 +14,7 @@ int set_interval(void) { - int usec = 1000000/UM_HZ; + int usec = UM_USEC_PER_SEC / UM_HZ; struct itimerval interval = ((struct itimerval) { { 0, usec }, { 0, usec } }); @@ -26,11 +26,11 @@ int set_interval(void) int timer_one_shot(int ticks) { - unsigned long usec = ticks * 1000000 / UM_HZ; - unsigned long sec = usec / 1000000; + unsigned long usec = ticks * UM_USEC_PER_SEC / UM_HZ; + unsigned long sec = usec / UM_USEC_PER_SEC; struct itimerval interval; - usec %= 1000000; + usec %= UM_USEC_PER_SEC; interval = ((struct itimerval) { { 0, 0 }, { sec, usec } }); if (setitimer(ITIMER_VIRTUAL, &interval, NULL) == -1) @@ -78,8 +78,8 @@ extern void alarm_handler(int sig, struct sigcontext *sc); void idle_sleep(unsigned long long nsecs) { - struct timespec ts = { .tv_sec = nsecs / BILLION, - .tv_nsec = nsecs % BILLION }; + struct timespec ts = { .tv_sec = nsecs / UM_NSEC_PER_SEC, + .tv_nsec = nsecs % UM_NSEC_PER_SEC }; if (nanosleep(&ts, &ts) == 0) alarm_handler(SIGVTALRM, NULL); |