From 9df4758a25454f0fb2876190bc6c9988bf36e3c6 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Wed, 24 Aug 2022 10:26:44 -0700
Subject: [PATCH] 
 mm-page_alloc-fix-race-condition-between-build_all_zonelists-and-page-allocation-fix

make zonelist_update_seq static

Cc: David Hildenbrand <david@redhat.com>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Patrick Daly <quic_pdaly@quicinc.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 6345011607e3..1678431fb4c4 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4714,7 +4714,7 @@ EXPORT_SYMBOL_GPL(fs_reclaim_release);
  * retries the allocation if zonelist changes. Writer side is protected by the
  * embedded spin_lock.
  */
-DEFINE_SEQLOCK(zonelist_update_seq);
+static DEFINE_SEQLOCK(zonelist_update_seq);
 
 static unsigned int zonelist_iter_begin(void)
 {
-- 
2.50.1