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-rw-r--r--include/linux/mm.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0416a7204be3..daa2b8f1e9a8 100644
--- 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)