From: Alex Sierra <alex.sierra@xxxxxxx>
Helper to check if zone device page is generic type.
Signed-off-by: Alex Sierra <alex.sierra@xxxxxxx>
---
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) &&
--
2.31.1
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