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Date:   Mon, 6 Jul 2020 13:53:08 +0200
From:   SeongJae Park <sjpark@...zon.com>
To:     <akpm@...ux-foundation.org>
CC:     SeongJae Park <sjpark@...zon.de>, <Jonathan.Cameron@...wei.com>,
        <aarcange@...hat.com>, <acme@...nel.org>,
        <alexander.shishkin@...ux.intel.com>, <amit@...nel.org>,
        <benh@...nel.crashing.org>, <brendan.d.gregg@...il.com>,
        <brendanhiggins@...gle.com>, <cai@....pw>,
        <colin.king@...onical.com>, <corbet@....net>, <dwmw@...zon.com>,
        <foersleo@...zon.de>, <irogers@...gle.com>, <jolsa@...hat.com>,
        <kirill@...temov.name>, <mark.rutland@....com>, <mgorman@...e.de>,
        <minchan@...nel.org>, <mingo@...hat.com>, <namhyung@...nel.org>,
        <peterz@...radead.org>, <rdunlap@...radead.org>,
        <riel@...riel.com>, <rientjes@...gle.com>, <rostedt@...dmis.org>,
        <sblbir@...zon.com>, <shakeelb@...gle.com>, <shuah@...nel.org>,
        <sj38.park@...il.com>, <snu@...zon.de>, <vbabka@...e.cz>,
        <vdavydov.dev@...il.com>, <yang.shi@...ux.alibaba.com>,
        <ying.huang@...el.com>, <david@...hat.com>,
        <linux-damon@...zon.com>, <linux-mm@...ck.org>,
        <linux-doc@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v17 01/15] mm/page_ext: Export lookup_page_ext() to GPL modules

From: SeongJae Park <sjpark@...zon.de>

This commit exports 'lookup_page_ext()' to GPL modules.  It will be used
by DAMON in following commit for the implementation of the region based
sampling.

Signed-off-by: SeongJae Park <sjpark@...zon.de>
Reviewed-by: Leonard Foerster <foersleo@...zon.de>
Reviewed-by: Varad Gautam <vrd@...zon.de>
---
 mm/page_ext.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/page_ext.c b/mm/page_ext.c
index a3616f7a0e9e..9d802d01fcb5 100644
--- a/mm/page_ext.c
+++ b/mm/page_ext.c
@@ -131,6 +131,7 @@ struct page_ext *lookup_page_ext(const struct page *page)
 					MAX_ORDER_NR_PAGES);
 	return get_entry(base, index);
 }
+EXPORT_SYMBOL_GPL(lookup_page_ext);
 
 static int __init alloc_node_page_ext(int nid)
 {
-- 
2.17.1

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