mm: page_alloc: make compound_page_dtors static

It's only used inside page_alloc.c now. So make it static and remove the declaration in mm.h. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Miaohe Lin <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
niw · Jun 19, 2023 · cf01724 · cf01724
1 parent ff71f26
commit cf01724
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Showing 2 changed files with 1 addition and 2 deletions.
diff --git a/include/linux/mm.h b/include/linux/mm.h
@@ -1220,7 +1220,6 @@ enum compound_dtor_id {
 #endif
 	NR_COMPOUND_DTORS,
 };
-extern compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS];
 
 static inline void folio_set_compound_dtor(struct folio *folio,
 		enum compound_dtor_id compound_dtor)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
@@ -284,7 +284,7 @@ const char * const migratetype_names[MIGRATE_TYPES] = {
 #endif
 };
 
-compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = {
+static compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS] = {
 	[NULL_COMPOUND_DTOR] = NULL,
 	[COMPOUND_PAGE_DTOR] = free_compound_page,
 #ifdef CONFIG_HUGETLB_PAGE