| Message ID | 20230612210423.18611-2-vishal.moola@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | Split ptdesc from struct page | expand |
On Mon, Jun 12, 2023 at 02:03:50PM -0700, Vishal Moola (Oracle) wrote: > No folio equivalents for page type operations have been defined, so > define them for later folio conversions. > > Also changes the Page##uname macros to take in const struct page* since > we only read the memory here. > > Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> Acked-by: Mike Rapoport (IBM) <rppt@kernel.org> > --- > include/linux/page-flags.h | 20 ++++++++++++++++++-- > 1 file changed, 18 insertions(+), 2 deletions(-) > > diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h > index 92a2063a0a23..e99a616b9bcd 100644 > --- a/include/linux/page-flags.h > +++ b/include/linux/page-flags.h > @@ -908,6 +908,8 @@ static inline bool is_page_hwpoison(struct page *page) > > #define PageType(page, flag) \ > ((page->page_type & (PAGE_TYPE_BASE | flag)) == PAGE_TYPE_BASE) > +#define folio_test_type(folio, flag) \ > + ((folio->page.page_type & (PAGE_TYPE_BASE | flag)) == PAGE_TYPE_BASE) > > static inline int page_type_has_type(unsigned int page_type) > { > @@ -920,20 +922,34 @@ static inline int page_has_type(struct page *page) > } > > #define PAGE_TYPE_OPS(uname, lname) \ > -static __always_inline int Page##uname(struct page *page) \ > +static __always_inline int Page##uname(const struct page *page) \ > { \ > return PageType(page, PG_##lname); \ > } \ > +static __always_inline int folio_test_##lname(const struct folio *folio)\ > +{ \ > + return folio_test_type(folio, PG_##lname); \ > +} \ > static __always_inline void __SetPage##uname(struct page *page) \ > { \ > VM_BUG_ON_PAGE(!PageType(page, 0), page); \ > page->page_type &= ~PG_##lname; \ > } \ > +static __always_inline void __folio_set_##lname(struct folio *folio) \ > +{ \ > + VM_BUG_ON_FOLIO(!folio_test_type(folio, 0), folio); \ > + folio->page.page_type &= ~PG_##lname; \ > +} \ > static __always_inline void __ClearPage##uname(struct page *page) \ > { \ > VM_BUG_ON_PAGE(!Page##uname(page), page); \ > page->page_type |= PG_##lname; \ > -} > +} \ > +static __always_inline void __folio_clear_##lname(struct folio *folio) \ > +{ \ > + VM_BUG_ON_FOLIO(!folio_test_##lname(folio), folio); \ > + folio->page.page_type |= PG_##lname; \ > +} \ > > /* > * PageBuddy() indicates that the page is free and in the buddy system > -- > 2.40.1 > >
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 92a2063a0a23..e99a616b9bcd 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -908,6 +908,8 @@ static inline bool is_page_hwpoison(struct page *page) #define PageType(page, flag) \ ((page->page_type & (PAGE_TYPE_BASE | flag)) == PAGE_TYPE_BASE) +#define folio_test_type(folio, flag) \ + ((folio->page.page_type & (PAGE_TYPE_BASE | flag)) == PAGE_TYPE_BASE) static inline int page_type_has_type(unsigned int page_type) { @@ -920,20 +922,34 @@ static inline int page_has_type(struct page *page) } #define PAGE_TYPE_OPS(uname, lname) \ -static __always_inline int Page##uname(struct page *page) \ +static __always_inline int Page##uname(const struct page *page) \ { \ return PageType(page, PG_##lname); \ } \ +static __always_inline int folio_test_##lname(const struct folio *folio)\ +{ \ + return folio_test_type(folio, PG_##lname); \ +} \ static __always_inline void __SetPage##uname(struct page *page) \ { \ VM_BUG_ON_PAGE(!PageType(page, 0), page); \ page->page_type &= ~PG_##lname; \ } \ +static __always_inline void __folio_set_##lname(struct folio *folio) \ +{ \ + VM_BUG_ON_FOLIO(!folio_test_type(folio, 0), folio); \ + folio->page.page_type &= ~PG_##lname; \ +} \ static __always_inline void __ClearPage##uname(struct page *page) \ { \ VM_BUG_ON_PAGE(!Page##uname(page), page); \ page->page_type |= PG_##lname; \ -} +} \ +static __always_inline void __folio_clear_##lname(struct folio *folio) \ +{ \ + VM_BUG_ON_FOLIO(!folio_test_##lname(folio), folio); \ + folio->page.page_type |= PG_##lname; \ +} \ /* * PageBuddy() indicates that the page is free and in the buddy system
No folio equivalents for page type operations have been defined, so define them for later folio conversions. Also changes the Page##uname macros to take in const struct page* since we only read the memory here. Signed-off-by: Vishal Moola (Oracle) <vishal.moola@gmail.com> --- include/linux/page-flags.h | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-)