linux-kernel - [PATCH v2 02/13] mm: page_alloc: move init_on_alloc/free() into mm

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Message-ID: <20230516063821.121844-3-wangkefeng.wang@huawei.com>
Date:   Tue, 16 May 2023 14:38:10 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Mike Rapoport <rppt@...nel.org>, <linux-mm@...ck.org>
CC:     David Hildenbrand <david@...hat.com>,
        Oscar Salvador <osalvador@...e.de>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Pavel Machek <pavel@....cz>, Len Brown <len.brown@...el.com>,
        Luis Chamberlain <mcgrof@...nel.org>,
        Kees Cook <keescook@...omium.org>,
        Iurii Zaikin <yzaikin@...gle.com>,
        <linux-kernel@...r.kernel.org>, <linux-pm@...r.kernel.org>,
        <linux-fsdevel@...r.kernel.org>, <ying.huang@...el.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH v2 02/13] mm: page_alloc: move init_on_alloc/free() into mm_init.c

Since commit f2fc4b44ec2b ("mm: move init_mem_debugging_and_hardening()
to mm/mm_init.c"), the init_on_alloc() and init_on_free() define is
better to move there too.

Reviewed-by: Mike Rapoport (IBM) <rppt@...nel.org>
Signed-off-by: Kefeng Wang <wangkefeng.wang@...wei.com>
---
 mm/mm_init.c    | 6 ++++++
 mm/page_alloc.c | 5 -----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/mm/mm_init.c b/mm/mm_init.c
index da162b7a044c..15201887f8e0 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -2543,6 +2543,12 @@ void __init memblock_free_pages(struct page *page, unsigned long pfn,
 	__free_pages_core(page, order);
 }
 
+DEFINE_STATIC_KEY_MAYBE(CONFIG_INIT_ON_ALLOC_DEFAULT_ON, init_on_alloc);
+EXPORT_SYMBOL(init_on_alloc);
+
+DEFINE_STATIC_KEY_MAYBE(CONFIG_INIT_ON_FREE_DEFAULT_ON, init_on_free);
+EXPORT_SYMBOL(init_on_free);
+
 static bool _init_on_alloc_enabled_early __read_mostly
 				= IS_ENABLED(CONFIG_INIT_ON_ALLOC_DEFAULT_ON);
 static int __init early_init_on_alloc(char *buf)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 4b4188cff820..bc69a0474069 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -233,11 +233,6 @@ unsigned long totalcma_pages __read_mostly;
 
 int percpu_pagelist_high_fraction;
 gfp_t gfp_allowed_mask __read_mostly = GFP_BOOT_MASK;
-DEFINE_STATIC_KEY_MAYBE(CONFIG_INIT_ON_ALLOC_DEFAULT_ON, init_on_alloc);
-EXPORT_SYMBOL(init_on_alloc);
-
-DEFINE_STATIC_KEY_MAYBE(CONFIG_INIT_ON_FREE_DEFAULT_ON, init_on_free);
-EXPORT_SYMBOL(init_on_free);
 
 /*
  * A cached value of the page's pageblock's migratetype, used when the page is
-- 
2.35.3