As a default implementation, call arch_make_page_accessible n times.
If an architecture can do better, it can override this.
Also move the default implementation of arch_make_page_accessible()
from gfp.h to mm.h.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
include/linux/gfp.h | 6 ------
include/linux/mm.h | 21 +++++++++++++++++++++
2 files changed, 21 insertions(+), 6 deletions(-)
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 11da8af06704..a503d928e684 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -508,12 +508,6 @@ static inline void arch_free_page(struct page *page, int order) { }
#ifndef HAVE_ARCH_ALLOC_PAGE
static inline void arch_alloc_page(struct page *page, int order) { }
#endif
-#ifndef HAVE_ARCH_MAKE_PAGE_ACCESSIBLE
-static inline int arch_make_page_accessible(struct page *page)
-{
- return 0;
-}
-#endif
struct page *__alloc_pages(gfp_t gfp, unsigned int order, int preferred_nid,
nodemask_t *nodemask);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 2c7b6ae1d3fc..5609095ffcac 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1719,6 +1719,27 @@ static inline size_t folio_size(struct folio *folio)
return PAGE_SIZE << folio_order(folio);
}
+#ifndef HAVE_ARCH_MAKE_PAGE_ACCESSIBLE
+static inline int arch_make_page_accessible(struct page *page)
+{
+ return 0;
+}
+#endif
+
+#ifndef HAVE_ARCH_MAKE_FOLIO_ACCESSIBLE
+static inline int arch_make_folio_accessible(struct folio *folio)
+{
+ int ret, i;
+ for (i = 0; i < folio_nr_pages(folio); i++) {
+ ret = arch_make_page_accessible(folio_page(folio, i));
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+#endif
+
/*
* Some inline functions in vmstat.h depend on page_zone()
*/
--
2.30.2
