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From:   Sidhartha Kumar <sidhartha.kumar@oracle.com>
To:     linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc:     akpm@linux-foundation.org, songmuchun@bytedance.com,
        mike.kravetz@oracle.com, willy@infradead.org,
        almasrymina@google.com, linmiaohe@huawei.com, hughd@google.com,
        Sidhartha Kumar <sidhartha.kumar@oracle.com>
Subject: [PATCH mm-unstable v2 07/10] mm/hugetlb: convert enqueue_huge_page() to folios
Date:   Thu, 17 Nov 2022 13:02:55 -0800
Message-Id: <20221117210258.12732-8-sidhartha.kumar@oracle.com>
In-Reply-To: <20221117210258.12732-1-sidhartha.kumar@oracle.com>
References: <20221117210258.12732-1-sidhartha.kumar@oracle.com>
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Convert callers of enqueue_huge_page() to pass in a folio, function is
renamed to enqueue_hugetlb_folio().

Signed-off-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
---
 mm/hugetlb.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index bf36aa8e6072..4eb6f3d6f46e 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -1127,17 +1127,17 @@ static bool vma_has_reserves(struct vm_area_struct *vma, long chg)
 	return false;
 }
 
-static void enqueue_huge_page(struct hstate *h, struct page *page)
+static void enqueue_hugetlb_folio(struct hstate *h, struct folio *folio)
 {
-	int nid = page_to_nid(page);
+	int nid = folio_nid(folio);
 
 	lockdep_assert_held(&hugetlb_lock);
-	VM_BUG_ON_PAGE(page_count(page), page);
+	VM_BUG_ON_FOLIO(folio_ref_count(folio), folio);
 
-	list_move(&page->lru, &h->hugepage_freelists[nid]);
+	list_move(&folio->lru, &h->hugepage_freelists[nid]);
 	h->free_huge_pages++;
 	h->free_huge_pages_node[nid]++;
-	SetHPageFreed(page);
+	folio_set_hugetlb_freed(folio);
 }
 
 static struct page *dequeue_huge_page_node_exact(struct hstate *h, int nid)
@@ -1549,7 +1549,7 @@ static void add_hugetlb_folio(struct hstate *h, struct folio *folio,
 		return;
 
 	arch_clear_hugepage_flags(&folio->page);
-	enqueue_huge_page(h, &folio->page);
+	enqueue_hugetlb_folio(h, folio);
 }
 
 static void __update_and_free_page(struct hstate *h, struct page *page)
@@ -1761,7 +1761,7 @@ void free_huge_page(struct page *page)
 		update_and_free_hugetlb_folio(h, folio, true);
 	} else {
 		arch_clear_hugepage_flags(page);
-		enqueue_huge_page(h, page);
+		enqueue_hugetlb_folio(h, folio);
 		spin_unlock_irqrestore(&hugetlb_lock, flags);
 	}
 }
@@ -2436,7 +2436,7 @@ static int gather_surplus_pages(struct hstate *h, long delta)
 		if ((--needed) < 0)
 			break;
 		/* Add the page to the hugetlb allocator */
-		enqueue_huge_page(h, page);
+		enqueue_hugetlb_folio(h, page_folio(page));
 	}
 free:
 	spin_unlock_irq(&hugetlb_lock);
@@ -2802,8 +2802,8 @@ static int alloc_and_dissolve_huge_page(struct hstate *h, struct page *old_page,
 		 * Ok, old_page is still a genuine free hugepage. Remove it from
 		 * the freelist and decrease the counters. These will be
 		 * incremented again when calling __prep_account_new_huge_page()
-		 * and enqueue_huge_page() for new_page. The counters will remain
-		 * stable since this happens under the lock.
+		 * and enqueue_hugetlb_folio() for new_folio. The counters will
+		 * remain stable since this happens under the lock.
 		 */
 		remove_hugetlb_folio(h, old_folio, false);
 
@@ -2812,7 +2812,7 @@ static int alloc_and_dissolve_huge_page(struct hstate *h, struct page *old_page,
 		 * earlier.  It can be directly added to the pool free list.
 		 */
 		__prep_account_new_huge_page(h, nid);
-		enqueue_huge_page(h, new_page);
+		enqueue_hugetlb_folio(h, new_folio);
 
 		/*
 		 * Pages have been replaced, we can safely free the old one.
-- 
2.38.1