Current pmd_to_page(), which derives the page table page containing the pmd
address has a very misleading name. The problem being, it sounds similar to
pmd_page() which derives page embedded in a given pmd entry either for next
level page or a mapped huge page. Rename it as pmd_pgtable_page() instead.
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Cc: linux-mm@xxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
---
This applies on v6.1-rc6
include/linux/mm.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8bbcccbc5565..e9e387caffac 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2403,7 +2403,7 @@ static inline void pgtable_pte_page_dtor(struct page *page)
#if USE_SPLIT_PMD_PTLOCKS
-static struct page *pmd_to_page(pmd_t *pmd)
+static struct page *pmd_pgtable_page(pmd_t *pmd)
{
unsigned long mask = ~(PTRS_PER_PMD * sizeof(pmd_t) - 1);
return virt_to_page((void *)((unsigned long) pmd & mask));
@@ -2411,7 +2411,7 @@ static struct page *pmd_to_page(pmd_t *pmd)
static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
{
- return ptlock_ptr(pmd_to_page(pmd));
+ return ptlock_ptr(pmd_pgtable_page(pmd));
}
static inline bool pmd_ptlock_init(struct page *page)
@@ -2430,7 +2430,7 @@ static inline void pmd_ptlock_free(struct page *page)
ptlock_free(page);
}
-#define pmd_huge_pte(mm, pmd) (pmd_to_page(pmd)->pmd_huge_pte)
+#define pmd_huge_pte(mm, pmd) (pmd_pgtable_page(pmd)->pmd_huge_pte)
#else
--
2.25.1
