mm: page_cgroup: check page_cgroup arrays in lookup_page_cgroup() only when necessary

[deliverable/linux.git] / kernel / tsacct.c

diff --git a/kernel/tsacct.c b/kernel/tsacct.c
index 5bbfac85866e7c333657da55e02637a135192ac8..23b4d784ebdd3e448ade6cb425e6ab3ba4e865fb 100644 (file)
--- a/kernel/tsacct.c
+++ b/kernel/tsacct.c
@@ -127,7 +127,7 @@ void acct_update_integrals(struct task_struct *tsk)
 
                local_irq_save(flags);
                time = tsk->stime + tsk->utime;
-               dtime = cputime_sub(time, tsk->acct_timexpd);
+               dtime = time - tsk->acct_timexpd;
                jiffies_to_timeval(cputime_to_jiffies(dtime), &value);
                delta = value.tv_sec;
                delta = delta * USEC_PER_SEC + value.tv_usec;