Merge tag 'pci-v4.20-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaa...

[linux-2.6-block.git] / include / linux / mm.h

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0416a7204be37b331a506efedc5c4c1333633a6a..daa2b8f1e9a8887e34ac67ba732d55a422f50e2e 100644 (file)
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -890,6 +890,19 @@ static inline bool is_device_public_page(const struct page *page)
                page->pgmap->type == MEMORY_DEVICE_PUBLIC;
 }
 
+#ifdef CONFIG_PCI_P2PDMA
+static inline bool is_pci_p2pdma_page(const struct page *page)
+{
+       return is_zone_device_page(page) &&
+               page->pgmap->type == MEMORY_DEVICE_PCI_P2PDMA;
+}
+#else /* CONFIG_PCI_P2PDMA */
+static inline bool is_pci_p2pdma_page(const struct page *page)
+{
+       return false;
+}
+#endif /* CONFIG_PCI_P2PDMA */
+
 #else /* CONFIG_DEV_PAGEMAP_OPS */
 static inline void dev_pagemap_get_ops(void)
 {
@@ -913,6 +926,11 @@ static inline bool is_device_public_page(const struct page *page)
 {
        return false;
 }
+
+static inline bool is_pci_p2pdma_page(const struct page *page)
+{
+       return false;
+}
 #endif /* CONFIG_DEV_PAGEMAP_OPS */
 
 static inline void get_page(struct page *page)