linux-kernel - [PATCH] sched: Use kmem_cache_zalloc() instead of kmem_cache_alloc() with flag GFP

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Date:   Mon, 23 Dec 2019 09:52:29 +0800
From:   Yi Wang <wang.yi59@....com.cn>
To:     mingo@...hat.com
Cc:     peterz@...radead.org, juri.lelli@...hat.com,
        vincent.guittot@...aro.org, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        linux-kernel@...r.kernel.org, xue.zhihong@....com.cn,
        wang.yi59@....com.cn, up2wing@...il.com, wang.liang82@....com.cn,
        Huang Zijiang <huang.zijiang@....com.cn>
Subject: [PATCH] sched: Use kmem_cache_zalloc() instead of kmem_cache_alloc() with flag GFP_ZERO.

From: Huang Zijiang <huang.zijiang@....com.cn>

Use kmem_cache_zalloc instead of manually setting kmem_cache_alloc
with flag GFP_ZERO since kzalloc sets allocated memory
to zero.

Signed-off-by: Huang Zijiang <huang.zijiang@....com.cn>
Signed-off-by: Yi Wang <wang.yi59@....com.cn>
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f2b111b..981ee92 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -6939,7 +6939,7 @@ struct task_group *sched_create_group(struct task_group *parent)
 {
     struct task_group *tg;
 
-    tg = kmem_cache_alloc(task_group_cache, GFP_KERNEL | __GFP_ZERO);
+tg = kmem_cache_zalloc(task_group_cache, GFP_KERNEL);
     if (!tg)
         return ERR_PTR(-ENOMEM);
 
-- 
1.9.1