| Message ID | 20210128070404.1922318-3-willy@infradead.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Page folios | expand |
On 28 Jan 2021, at 2:03, Matthew Wilcox (Oracle) wrote: > This is just a convenience wrapper for callers with folios; pgdat can > be reached from tail pages as well as head pages. > > Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> > --- > include/linux/mm.h | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index f20504017adf..7d787229dd40 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -1503,6 +1503,11 @@ static inline pg_data_t *page_pgdat(const struct page *page) > return NODE_DATA(page_to_nid(page)); > } > > +static inline pg_data_t *folio_pgdat(const struct folio *folio) > +{ > + return page_pgdat(&folio->page); > +} > + > #ifdef SECTION_IN_PAGE_FLAGS > static inline void set_page_section(struct page *page, unsigned long section) > { > -- > 2.29.2 LGTM. Reviewed-by: Zi Yan <ziy@nvidia.com> — Best Regards, Yan Zi
diff --git a/include/linux/mm.h b/include/linux/mm.h index f20504017adf..7d787229dd40 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1503,6 +1503,11 @@ static inline pg_data_t *page_pgdat(const struct page *page) return NODE_DATA(page_to_nid(page)); } +static inline pg_data_t *folio_pgdat(const struct folio *folio) +{ + return page_pgdat(&folio->page); +} + #ifdef SECTION_IN_PAGE_FLAGS static inline void set_page_section(struct page *page, unsigned long section) {
This is just a convenience wrapper for callers with folios; pgdat can be reached from tail pages as well as head pages. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- include/linux/mm.h | 5 +++++ 1 file changed, 5 insertions(+)