summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-07-06 14:09:38 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-07-06 14:09:38 -0700
commit21884a83b2192a00885d7244a1dda32debd2fbc7 (patch)
treee00267bbcac32f0114b3d21a20c61107d2314c40 /arch/x86/kernel
parent8b70a90cabafb6a6e1a0d3f838b38355fe48337e (diff)
parent73b0cd674ccc64c921e25bd7154f26d342116539 (diff)
downloadop-kernel-dev-21884a83b2192a00885d7244a1dda32debd2fbc7.zip
op-kernel-dev-21884a83b2192a00885d7244a1dda32debd2fbc7.tar.gz
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer core updates from Thomas Gleixner: "The timer changes contain: - posix timer code consolidation and fixes for odd corner cases - sched_clock implementation moved from ARM to core code to avoid duplication by other architectures - alarm timer updates - clocksource and clockevents unregistration facilities - clocksource/events support for new hardware - precise nanoseconds RTC readout (Xen feature) - generic support for Xen suspend/resume oddities - the usual lot of fixes and cleanups all over the place The parts which touch other areas (ARM/XEN) have been coordinated with the relevant maintainers. Though this results in an handful of trivial to solve merge conflicts, which we preferred over nasty cross tree merge dependencies. The patches which have been committed in the last few days are bug fixes plus the posix timer lot. The latter was in akpms queue and next for quite some time; they just got forgotten and Frederic collected them last minute." * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (59 commits) hrtimer: Remove unused variable hrtimers: Move SMP function call to thread context clocksource: Reselect clocksource when watchdog validated high-res capability posix-cpu-timers: don't account cpu timer after stopped thread runtime accounting posix_timers: fix racy timer delta caching on task exit posix-timers: correctly get dying task time sample in posix_cpu_timer_schedule() selftests: add basic posix timers selftests posix_cpu_timers: consolidate expired timers check posix_cpu_timers: consolidate timer list cleanups posix_cpu_timer: consolidate expiry time type tick: Sanitize broadcast control logic tick: Prevent uncontrolled switch to oneshot mode tick: Make oneshot broadcast robust vs. CPU offlining x86: xen: Sync the CMOS RTC as well as the Xen wallclock x86: xen: Sync the wallclock when the system time is set timekeeping: Indicate that clock was set in the pvclock gtod notifier timekeeping: Pass flags instead of multiple bools to timekeeping_update() xen: Remove clock_was_set() call in the resume path hrtimers: Support resuming with two or more CPUs online (but stopped) timer: Fix jiffies wrap behavior of round_jiffies_common() ...
Diffstat (limited to 'arch/x86/kernel')
-rw-r--r--arch/x86/kernel/kvmclock.c9
-rw-r--r--arch/x86/kernel/rtc.c17
2 files changed, 10 insertions, 16 deletions
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 3dd37eb..1f354f4 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -48,10 +48,9 @@ static struct pvclock_wall_clock wall_clock;
* have elapsed since the hypervisor wrote the data. So we try to account for
* that with system time
*/
-static unsigned long kvm_get_wallclock(void)
+static void kvm_get_wallclock(struct timespec *now)
{
struct pvclock_vcpu_time_info *vcpu_time;
- struct timespec ts;
int low, high;
int cpu;
@@ -64,14 +63,12 @@ static unsigned long kvm_get_wallclock(void)
cpu = smp_processor_id();
vcpu_time = &hv_clock[cpu].pvti;
- pvclock_read_wallclock(&wall_clock, vcpu_time, &ts);
+ pvclock_read_wallclock(&wall_clock, vcpu_time, now);
preempt_enable();
-
- return ts.tv_sec;
}
-static int kvm_set_wallclock(unsigned long now)
+static int kvm_set_wallclock(const struct timespec *now)
{
return -1;
}
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 198eb20..0aa2939 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -38,8 +38,9 @@ EXPORT_SYMBOL(rtc_lock);
* jump to the next second precisely 500 ms later. Check the Motorola
* MC146818A or Dallas DS12887 data sheet for details.
*/
-int mach_set_rtc_mmss(unsigned long nowtime)
+int mach_set_rtc_mmss(const struct timespec *now)
{
+ unsigned long nowtime = now->tv_sec;
struct rtc_time tm;
int retval = 0;
@@ -58,7 +59,7 @@ int mach_set_rtc_mmss(unsigned long nowtime)
return retval;
}
-unsigned long mach_get_cmos_time(void)
+void mach_get_cmos_time(struct timespec *now)
{
unsigned int status, year, mon, day, hour, min, sec, century = 0;
unsigned long flags;
@@ -107,7 +108,8 @@ unsigned long mach_get_cmos_time(void)
} else
year += CMOS_YEARS_OFFS;
- return mktime(year, mon, day, hour, min, sec);
+ now->tv_sec = mktime(year, mon, day, hour, min, sec);
+ now->tv_nsec = 0;
}
/* Routines for accessing the CMOS RAM/RTC. */
@@ -135,18 +137,13 @@ EXPORT_SYMBOL(rtc_cmos_write);
int update_persistent_clock(struct timespec now)
{
- return x86_platform.set_wallclock(now.tv_sec);
+ return x86_platform.set_wallclock(&now);
}
/* not static: needed by APM */
void read_persistent_clock(struct timespec *ts)
{
- unsigned long retval;
-
- retval = x86_platform.get_wallclock();
-
- ts->tv_sec = retval;
- ts->tv_nsec = 0;
+ x86_platform.get_wallclock(ts);
}
OpenPOWER on IntegriCloud