diff mbox series

[v6,08/33] mm: Convert pmd_ptlock_init() to use ptdescs

Message ID 20230627031431.29653-9-vishal.moola@gmail.com (mailing list archive)
State New, archived
Headers show
Series Split ptdesc from struct page | expand

Commit Message

Vishal Moola June 27, 2023, 3:14 a.m. UTC 
This removes some direct accesses to struct page, working towards
splitting out struct ptdesc from struct page.

Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
---
 include/linux/mm.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
diff mbox series

Patch

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0b230d5d229a..1c4c6a7b69b3 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2926,12 +2926,12 @@  static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 	return ptlock_ptr(pmd_ptdesc(pmd));
 }
 
-static inline bool pmd_ptlock_init(struct page *page)
+static inline bool pmd_ptlock_init(struct ptdesc *ptdesc)
 {
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-	page->pmd_huge_pte = NULL;
+	ptdesc->pmd_huge_pte = NULL;
 #endif
-	return ptlock_init(page);
+	return ptlock_init(ptdesc_page(ptdesc));
 }
 
 static inline void pmd_ptlock_free(struct page *page)
@@ -2951,7 +2951,7 @@  static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 	return &mm->page_table_lock;
 }
 
-static inline bool pmd_ptlock_init(struct page *page) { return true; }
+static inline bool pmd_ptlock_init(struct ptdesc *ptdesc) { return true; }
 static inline void pmd_ptlock_free(struct page *page) {}
 
 #define pmd_huge_pte(mm, pmd) ((mm)->pmd_huge_pte)
@@ -2967,7 +2967,7 @@  static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd)
 
 static inline bool pgtable_pmd_page_ctor(struct page *page)
 {
-	if (!pmd_ptlock_init(page))
+	if (!pmd_ptlock_init(page_ptdesc(page)))
 		return false;
 	__SetPageTable(page);
 	inc_lruvec_page_state(page, NR_PAGETABLE);