[PATCH 5/5] mm: remove PageTransHuge()

[Kefeng Wang <wangkefeng.wang@huawei.com>]

There are no users of PageTransHuge(), remove it.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 include/linux/page-flags.h | 13 -------------
 include/linux/pgtable.h    |  2 +-
 2 files changed, 1 insertion(+), 14 deletions(-)

diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index b753d158762f..71e972ba489e 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -871,19 +871,6 @@ FOLIO_FLAG_FALSE(partially_mapped)
 #define PG_head_mask ((1UL << PG_head))
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-/*
- * PageHuge() only returns true for hugetlbfs pages, but not for
- * normal or transparent huge pages.
- *
- * PageTransHuge() returns true for both transparent huge and
- * hugetlbfs pages, but not normal pages. PageTransHuge() can only be
- * called only in the core VM paths where hugetlbfs pages can't exist.
- */
-static inline int PageTransHuge(const struct page *page)
-{
-	VM_BUG_ON_PAGE(PageTail(page), page);
-	return PageHead(page);
-}
 
 /*
  * PageTransCompound returns true for both transparent huge pages
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 780f3b439d98..36fc336782e8 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -398,7 +398,7 @@ extern int pmdp_clear_flush_young(struct vm_area_struct *vma,
 #else
 /*
  * Despite relevant to THP only, this API is called from generic rmap code
- * under PageTransHuge(), hence needs a dummy implementation for !THP
+ * under THP, hence needs a dummy implementation for !THP
  */
 static inline int pmdp_clear_flush_young(struct vm_area_struct *vma,
 					 unsigned long address, pmd_t *pmdp)
-- 
2.27.0