diff mbox series

[v2,06/34] mm: Convert pmd_pgtable_page() to pmd_ptdesc()

Message ID 20230501192829.17086-7-vishal.moola@gmail.com (mailing list archive)
State Superseded
Headers show
Series Split ptdesc from struct page | expand

Commit Message

Vishal Moola May 1, 2023, 7:28 p.m. UTC 
Converts pmd_pgtable_page() to pmd_ptdesc() and all its callers. 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>
---
 include/linux/mm.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
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Patch

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 258f3b730359..62c1635a9d44 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2892,15 +2892,15 @@  static inline void pgtable_pte_page_dtor(struct page *page)
 
 #if USE_SPLIT_PMD_PTLOCKS
 
-static inline struct page *pmd_pgtable_page(pmd_t *pmd)
+static inline struct ptdesc *pmd_ptdesc(pmd_t *pmd)
 {
 	unsigned long mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1);
-	return virt_to_page((void *)((unsigned long) pmd & mask));
+	return virt_to_ptdesc((void *)((unsigned long) pmd & mask));
 }
 
 static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 {
-	return ptlock_ptr(pmd_pgtable_page(pmd));
+	return ptlock_ptr(ptdesc_page(pmd_ptdesc(pmd)));
 }
 
 static inline bool pmd_ptlock_init(struct page *page)
@@ -2919,7 +2919,7 @@  static inline void pmd_ptlock_free(struct page *page)
 	ptlock_free(page);
 }
 
-#define pmd_huge_pte(mm, pmd) (pmd_pgtable_page(pmd)->pmd_huge_pte)
+#define pmd_huge_pte(mm, pmd) (pmd_ptdesc(pmd)->pmd_huge_pte)
 
 #else