linux-kernel - [PATCH] mm: move get_page_from_free_area() to mm/page

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Date:   Sun, 19 Mar 2023 13:42:14 +0200
From:   Mike Rapoport <rppt@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Mike Rapoport <rppt@...nel.org>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] mm: move get_page_from_free_area() to mm/page_alloc.c

From: "Mike Rapoport (IBM)" <rppt@...nel.org>

The get_page_from_free_area() helper is only used in mm/page_alloc.c so
move it there to reduce noise in include/linux/mmzone.h

Signed-off-by: Mike Rapoport (IBM) <rppt@...nel.org>
---
 include/linux/mmzone.h | 7 -------
 mm/page_alloc.c        | 7 +++++++
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 96599cb9eb62..8f5a9e2c722a 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -108,13 +108,6 @@ struct free_area {
 	unsigned long		nr_free;
 };
 
-static inline struct page *get_page_from_free_area(struct free_area *area,
-					    int migratetype)
-{
-	return list_first_entry_or_null(&area->free_list[migratetype],
-					struct page, lru);
-}
-
 static inline bool free_area_empty(struct free_area *area, int migratetype)
 {
 	return list_empty(&area->free_list[migratetype]);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 87d760236dba..2e72fdbdd8db 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1048,6 +1048,13 @@ static inline void del_page_from_free_list(struct page *page, struct zone *zone,
 	zone->free_area[order].nr_free--;
 }
 
+static inline struct page *get_page_from_free_area(struct free_area *area,
+					    int migratetype)
+{
+	return list_first_entry_or_null(&area->free_list[migratetype],
+					struct page, lru);
+}
+
 /*
  * If this is not the largest possible page, check if the buddy
  * of the next-highest order is free. If it is, it's possible

base-commit: 4018ab1f7cec061b8425737328edefebdc0ab832
-- 
2.35.1