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-rw-r--r--kernel/sched/cputime.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index 2b57031afc19..64492dff8a81 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -289,13 +289,14 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times)
cputime_t utime, stime;
struct task_struct *t;
unsigned int seq, nextseq;
+ unsigned long flags;
rcu_read_lock();
/* Attempt a lockless read on the first round. */
nextseq = 0;
do {
seq = nextseq;
- read_seqbegin_or_lock(&sig->stats_lock, &seq);
+ flags = read_seqbegin_or_lock_irqsave(&sig->stats_lock, &seq);
times->utime = sig->utime;
times->stime = sig->stime;
times->sum_exec_runtime = sig->sum_sched_runtime;
@@ -309,7 +310,7 @@ void thread_group_cputime(struct task_struct *tsk, struct task_cputime *times)
/* If lockless access failed, take the lock. */
nextseq = 1;
} while (need_seqretry(&sig->stats_lock, seq));
- done_seqretry(&sig->stats_lock, seq);
+ done_seqretry_irqrestore(&sig->stats_lock, seq, flags);
rcu_read_unlock();
}

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