mm: add find_get_page_flags() for 3.18 ext4 backport

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

1 files changed, 4 insertions, 1 deletions

diff --git a/mm/filemap.c b/mm/filemap.c
index 977b53167..b50d511c1 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -716,7 +716,8 @@ int __lock_page_or_retry(struct page *page, struct mm_struct *mm,
  * Is there a pagecache struct page at the given (mapping, offset) tuple?
  * If yes, increment its refcount and return it; if no, return NULL.
  */
-struct page *find_get_page(struct address_space *mapping, pgoff_t offset)
+struct page *find_get_page_flags(struct address_space *mapping, pgoff_t offset,
+				 int fgp_flags)
 {
 	void **pagep;
 	struct page *page;
@@ -753,6 +754,8 @@ repeat:
 		}
 	}
 out:
+	if (page && (fgp_flags & FGP_ACCESSED))
+		mark_page_accessed(page);
 	rcu_read_unlock();
 
 	return page;