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-rw-r--r--kernel/acct.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/acct.c b/kernel/acct.c
index 81f9831a7859..11ff4a596d6b 100644
--- a/kernel/acct.c
+++ b/kernel/acct.c
@@ -416,6 +416,7 @@ static void fill_ac(acct_t *ac)
{
struct pacct_struct *pacct = &current->signal->pacct;
u64 elapsed, run_time;
+ time64_t btime;
struct tty_struct *tty;
/*
@@ -448,7 +449,8 @@ static void fill_ac(acct_t *ac)
}
#endif
do_div(elapsed, AHZ);
- ac->ac_btime = get_seconds() - elapsed;
+ btime = ktime_get_real_seconds() - elapsed;
+ ac->ac_btime = clamp_t(time64_t, btime, 0, U32_MAX);
#if ACCT_VERSION==2
ac->ac_ahz = AHZ;
#endif