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Diffstat (limited to 'include/linux/dax.h')
-rw-r--r--include/linux/dax.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h
index a43b396fb336..b51db4264c83 100644
--- a/include/linux/dax.h
+++ b/include/linux/dax.h
@@ -86,6 +86,8 @@ static inline void fs_put_dax(struct dax_device *dax_dev)
struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev);
int dax_writeback_mapping_range(struct address_space *mapping,
struct block_device *bdev, struct writeback_control *wbc);
+
+struct page *dax_layout_busy_page(struct address_space *mapping);
#else
static inline int bdev_dax_supported(struct super_block *sb, int blocksize)
{
@@ -106,6 +108,11 @@ static inline struct dax_device *fs_dax_get_by_bdev(struct block_device *bdev)
return NULL;
}
+static inline struct page *dax_layout_busy_page(struct address_space *mapping)
+{
+ return NULL;
+}
+
static inline int dax_writeback_mapping_range(struct address_space *mapping,
struct block_device *bdev, struct writeback_control *wbc)
{