[PATCH 08/33] mm: Convert pmd_ptlock_init() to use ptdescs
Vishal Moola (Oracle)
vishal.moola at gmail.com
Mon Apr 17 13:50:23 PDT 2023
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 at gmail.com>
---
include/linux/mm.h | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index ed8dd0464841..7eb562909b2c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -2903,12 +2903,12 @@ 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)
@@ -2928,7 +2928,7 @@ 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)
@@ -2944,7 +2944,7 @@ 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);
--
2.39.2
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