| Message ID | 20230612210423.18611-7-vishal.moola@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Split ptdesc from struct page | expand |
On Mon, Jun 12, 2023 at 02:03:55PM -0700, Vishal Moola (Oracle) wrote: > 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> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> > --- > include/linux/mm.h | 8 ++++---- > 1 file changed, 4 insertions(+), 4 deletions(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index f184f1eba85d..088b7664f897 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -2931,15 +2931,15 @@ 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) > @@ -2958,7 +2958,7 @@ 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 > >
diff --git a/include/linux/mm.h b/include/linux/mm.h index f184f1eba85d..088b7664f897 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -2931,15 +2931,15 @@ 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) @@ -2958,7 +2958,7 @@ 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
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(-)