mm: remove set_compound_page_dtor()

All users can use the folio equivalent so this function can be safely removed. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Sidhartha Kumar <[email protected]> Cc: Aneesh Kumar K.V <[email protected]> Cc: Matthew Wilcox <[email protected]> Cc: Tarun Sahu <[email protected]> Signed-off-by: Andrew Morton <[email protected]>
kawasaki · Jun 19, 2023 · b95826c · b95826c
1 parent a92cbb8
commit b95826c
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Showing 3 changed files with 2 additions and 12 deletions.
diff --git a/include/linux/mm.h b/include/linux/mm.h
@@ -1223,16 +1223,6 @@ enum compound_dtor_id {
 };
 extern compound_page_dtor * const compound_page_dtors[NR_COMPOUND_DTORS];
 
-static inline void set_compound_page_dtor(struct page *page,
-		enum compound_dtor_id compound_dtor)
-{
-	struct folio *folio = (struct folio *)page;
-
-	VM_BUG_ON_PAGE(compound_dtor >= NR_COMPOUND_DTORS, page);
-	VM_BUG_ON_PAGE(!PageHead(page), page);
-	folio->_folio_dtor = compound_dtor;
-}
-
 static inline void folio_set_compound_dtor(struct folio *folio,
 		enum compound_dtor_id compound_dtor)
 {

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
@@ -583,7 +583,7 @@ void prep_transhuge_page(struct page *page)
 
 	VM_BUG_ON_FOLIO(folio_order(folio) < 2, folio);
 	INIT_LIST_HEAD(&folio->_deferred_list);
-	set_compound_page_dtor(page, TRANSHUGE_PAGE_DTOR);
+	folio_set_compound_dtor(folio, TRANSHUGE_PAGE_DTOR);
 }
 
 static inline bool is_transparent_hugepage(struct page *page)

diff --git a/mm/internal.h b/mm/internal.h
@@ -391,7 +391,7 @@ static inline void prep_compound_head(struct page *page, unsigned int order)
 {
 	struct folio *folio = (struct folio *)page;
 
-	set_compound_page_dtor(page, COMPOUND_PAGE_DTOR);
+	folio_set_compound_dtor(folio, COMPOUND_PAGE_DTOR);
 	set_compound_order(page, order);
 	atomic_set(&folio->_entire_mapcount, -1);
 	atomic_set(&folio->_nr_pages_mapped, 0);