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authorLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 17:10:33 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-01-06 17:10:33 -0800
commitcfa97f993c275d193fe82c22511dfb5f1e51b661 (patch)
tree552cea5db0ef07bbcc5d53850607dcda6f9b664c /kernel/time/timekeeping.c
parent7238eb4ca35cd63340dc02caf757376e40c1210c (diff)
parentdb2f59c8c9b315f2b88b1dac159b988c6009034d (diff)
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: fix section mismatch sched: fix double kfree in failure path sched: clean up arch_reinit_sched_domains() sched: mark sched_create_sysfs_power_savings_entries() as __init getrusage: RUSAGE_THREAD should return ru_utime and ru_stime sched: fix sched_slice() sched_clock: prevent scd->clock from moving backwards, take #2 sched: sched.c declare variables before they get used
Diffstat (limited to 'kernel/time/timekeeping.c')
-rw-r--r--kernel/time/timekeeping.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index fa05e88aa76..900f1b6598d 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -46,6 +46,9 @@ struct timespec xtime __attribute__ ((aligned (16)));
struct timespec wall_to_monotonic __attribute__ ((aligned (16)));
static unsigned long total_sleep_time; /* seconds */
+/* flag for if timekeeping is suspended */
+int __read_mostly timekeeping_suspended;
+
static struct timespec xtime_cache __attribute__ ((aligned (16)));
void update_xtime_cache(u64 nsec)
{
@@ -92,6 +95,8 @@ void getnstimeofday(struct timespec *ts)
unsigned long seq;
s64 nsecs;
+ WARN_ON(timekeeping_suspended);
+
do {
seq = read_seqbegin(&xtime_lock);
@@ -299,8 +304,6 @@ void __init timekeeping_init(void)
write_sequnlock_irqrestore(&xtime_lock, flags);
}
-/* flag for if timekeeping is suspended */
-static int timekeeping_suspended;
/* time in seconds when suspend began */
static unsigned long timekeeping_suspend_time;