[PATCH mm-unstable v7 04/31] mm: Convert pmd_pgtable_page() callers to use pmd_ptdesc()

Vishal Moola (Oracle)
2023-07-25T04:21:30Z

Converts internal pmd_pgtable_page() callers to use pmd_ptdesc(). 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 | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 3fda0ad41cf2..bf552a106e4a 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2971,7 +2971,7 @@ static inline struct ptdesc *pmd_ptdesc(pmd_t *pmd)

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)
@@ -2990,7 +2990,7 @@ 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

--
2.40.1