From 5ce1dbfdd8e3d4dca2f842dd833ca7e264ace85b Mon Sep 17 00:00:00 2001
From: Miaohe Lin <linmiaohe@huawei.com>
Date: Thu, 4 Sep 2025 14:22:58 +0800
Subject: mm/hwpoison: decouple hwpoison_filter from mm/memory-failure.c

mm/memory-failure.c defines and uses hwpoison_filter_* parameters but the
values of those parameters can only be modified via mm/hwpoison-inject.c
from userspace.  They have a potentially different life time.  Decouple
those parameters from mm/memory-failure.c to fix this broken layering.

Link: https://lkml.kernel.org/r/20250904062258.3336092-1-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Naoya Horiguchi <nao.horiguchi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 fs/proc/page.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'fs/proc')

diff --git a/fs/proc/page.c b/fs/proc/page.c
index 771e0b6bc630..fc64f23e05e5 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -256,6 +256,7 @@ u64 stable_page_flags(const struct page *page)
 
 	return u;
 }
+EXPORT_SYMBOL_GPL(stable_page_flags);
 
 /* /proc/kpageflags - an array exposing page flags
  *
-- 
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