From: Alex Sierra alex.sierra@amd.com
Helper to check if zone device page is generic type.
Signed-off-by: Alex Sierra alex.sierra@amd.com --- include/linux/mm.h | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h index c9900aedc195..1af7b9b76948 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1158,6 +1158,13 @@ static inline bool is_device_private_page(const struct page *page) page->pgmap->type == MEMORY_DEVICE_PRIVATE; }
+static inline bool is_device_generic_page(const struct page *page) +{ + return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) && + is_zone_device_page(page) && + page->pgmap->type == MEMORY_DEVICE_GENERIC; +} + static inline bool is_pci_p2pdma_page(const struct page *page) { return IS_ENABLED(CONFIG_DEV_PAGEMAP_OPS) &&