From: "zhaoyang.huang" <zhaoyang.huang@unisoc.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Zhaoyang Huang <huangzhaoyang@gmail.com>, <linux-mm@kvack.org>,
<linux-kernel@vger.kernel.org>, <ke.wang@unisoc.com>
Subject: [PATCH] mm: No need to check pcp page when free it to buddy
Date: Wed, 14 Sep 2022 18:53:40 +0800 [thread overview]
Message-ID: <1663152820-608-1-git-send-email-zhaoyang.huang@unisoc.com> (raw)
From: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
The pages on pcp list have been checked the validity from each entrance. It is
no need to check it again when free them back to buddy.
Signed-off-by: Zhaoyang Huang <zhaoyang.huang@unisoc.com>
---
mm/page_alloc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e008a3d..131536e 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1445,7 +1445,7 @@ static bool free_pcp_prepare(struct page *page, unsigned int order)
static bool bulkfree_pcp_prepare(struct page *page)
{
- return check_free_page(page);
+ return false;
}
#endif /* CONFIG_DEBUG_VM */
--
1.9.1
next reply other threads:[~2022-09-14 10:54 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-14 10:53 zhaoyang.huang [this message]
2022-09-14 21:19 ` Andrew Morton
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