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From:   Oscar Salvador <osalvador@suse.de>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Mike Kravetz <mike.kravetz@oracle.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        David Hildenbrand <david@redhat.com>,
        Michal Hocko <mhocko@kernel.org>,
        Muchun Song <songmuchun@bytedance.com>, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, Oscar Salvador <osalvador@suse.de>
Subject: [PATCH v8 3/7] mm,hugetlb: Drop clearing of flag from prep_new_huge_page
Date:   Thu, 15 Apr 2021 12:35:40 +0200
Message-Id: <20210415103544.6791-4-osalvador@suse.de>
In-Reply-To: <20210415103544.6791-1-osalvador@suse.de>
References: <20210415103544.6791-1-osalvador@suse.de>
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Pages allocated after boot get its private field cleared by means
of post_alloc_hook().
Pages allocated during boot, that is directly from the memblock allocator,
get cleared by paging_init()->..->memmap_init_zone->..->__init_single_page()
before any memblock allocation.

Based on this ground, let us remove the clearing of the flag from
prep_new_huge_page() as it is not needed.

Signed-off-by: Oscar Salvador <osalvador@suse.de>
---
 mm/hugetlb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 54d81d5947ed..2cb9fa79cbaa 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1493,7 +1493,6 @@ static void prep_new_huge_page(struct hstate *h, struct page *page, int nid)
 	spin_lock_irq(&hugetlb_lock);
 	h->nr_huge_pages++;
 	h->nr_huge_pages_node[nid]++;
-	ClearHPageFreed(page);
 	spin_unlock_irq(&hugetlb_lock);
 }
 
-- 
2.16.3