kernel/delayacct.c: remove redundant checking in __delayacct_add_tsk()

The wrapper function delayacct_add_tsk() already checked 'tsk->delays', and __delayacct_add_tsk() has no another direct callers, so can remove the redundancy checking code. And the label 'done' is also useless, so remove it, too. Signed-off-by: Chen Gang <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
kyagi · Nov 13, 2013 · 324d666 · 324d666
1 parent c725ee5
commit 324d666
Showing 1 changed file with 0 additions and 7 deletions.
diff --git a/kernel/delayacct.c b/kernel/delayacct.c
@@ -108,12 +108,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	struct timespec ts;
 	cputime_t utime, stime, stimescaled, utimescaled;
 
-	/* Though tsk->delays accessed later, early exit avoids
-	 * unnecessary returning of other data
-	 */
-	if (!tsk->delays)
-		goto done;
-
 	tmp = (s64)d->cpu_run_real_total;
 	task_cputime(tsk, &utime, &stime);
 	cputime_to_timespec(utime + stime, &ts);
@@ -158,7 +152,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	d->freepages_count += tsk->delays->freepages_count;
 	spin_unlock_irqrestore(&tsk->delays->lock, flags);
 
-done:
 	return 0;
 }