1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/mm.h b/include/linux/mm.h
index f8e12b3b6110..619c0e80cf0c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1138,6 +1138,12 @@ int do_page_cache_readahead(struct address_space *mapping, struct file *filp,
                         pgoff_t offset, unsigned long nr_to_read);
 int force_page_cache_readahead(struct address_space *mapping, struct file *filp,
                         pgoff_t offset, unsigned long nr_to_read);
+unsigned long page_cache_readahead_ondemand(struct address_space *mapping,
+                          struct file_ra_state *ra,
+                          struct file *filp,
+                          struct page *page,
+                          pgoff_t offset,
+                          unsigned long size);
 unsigned long page_cache_readahead(struct address_space *mapping,
                           struct file_ra_state *ra,
                           struct file *filp,