1 files changed, 3 insertions, 2 deletions

diff --git a/fs/libfs.c b/fs/libfs.c
index 7d487047dbb8..cf79196535ec 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -335,17 +335,18 @@ int simple_prepare_write(struct file *file, struct page *page,
                         flush_dcache_page(page);
                         kunmap_atomic(kaddr, KM_USER0);
                 }
-                SetPageUptodate(page);
         }
         return 0;
 }
 
 int simple_commit_write(struct file *file, struct page *page,
-                        unsigned offset, unsigned to)
+                        unsigned from, unsigned to)
 {
         struct inode *inode = page->mapping->host;
         loff_t pos = ((loff_t)page->index << PAGE_CACHE_SHIFT) + to;
 
+        if (!PageUptodate(page))
+                SetPageUptodate(page);
         /*
          * No need to use i_size_read() here, the i_size
          * cannot change under us because we hold the i_mutex.