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-rw-r--r--arch/powerpc/kernel/time.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 3486cfa..b3b1435 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -297,6 +297,8 @@ static u64 vtime_delta(struct task_struct *tsk,
u64 now, nowscaled, deltascaled;
u64 udelta, delta, user_scaled;
+ WARN_ON_ONCE(!irqs_disabled());
+
now = mftb();
nowscaled = read_spurr(now);
get_paca()->system_time += now - get_paca()->starttime;