[v2,11/16] mm/huge pud: Use transparent huge pud helpers only with CONFIG_TRANSPARENT_HUGEPAGE

Commit Message

Aneesh Kumar K.V June 16, 2023, 11:08 a.m. UTC

pudp_set_wrprotect and move_huge_pud helpers are only used when
CONFIG_TRANSPARENT_HUGEPAGE is enabled. Similar to pmdp_set_wrprotect and
move_huge_pmd_helpers use architecture override only if
CONFIG_TRANSPARENT_HUGEPAGE is set

Signed-off-by: Aneesh Kumar K.V <[e-mail]>
---
 include/linux/pgtable.h | 2 ++
 mm/mremap.c             | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

Patch

diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 8c5174d1f9db..c7f5806dc9d1 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -550,6 +550,7 @@  static inline void pmdp_set_wrprotect(struct mm_struct *mm,
 #endif
 #ifndef __HAVE_ARCH_PUDP_SET_WRPROTECT
 #ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
 static inline void pudp_set_wrprotect(struct mm_struct *mm,
 				      unsigned long address, pud_t *pudp)
 {
@@ -563,6 +564,7 @@  static inline void pudp_set_wrprotect(struct mm_struct *mm,
 {
 	BUILD_BUG();
 }
+#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 #endif /* CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD */
 #endif
 
diff --git a/mm/mremap.c b/mm/mremap.c
index b11ce6c92099..6373db571e5c 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -338,7 +338,7 @@  static inline bool move_normal_pud(struct vm_area_struct *vma,
 }
 #endif
 
-#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && defined(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)
 static bool move_huge_pud(struct vm_area_struct *vma, unsigned long old_addr,
 			  unsigned long new_addr, pud_t *old_pud, pud_t *new_pud)
 {