Patch mmaped non-eCryptfs file

diff --git a/fs/ecryptfs/mmap.c b/fs/ecryptfs/mmap.c
index 10ec695..a4be0e9 100644
--- a/fs/ecryptfs/mmap.c
+++ b/fs/ecryptfs/mmap.c
@@ -65,6 +65,32 @@ struct page *ecryptfs_get_locked_page(struct inode *inode, loff_t index)
 static int ecryptfs_writepage(struct page *page, struct writeback_control *wbc)
 {
    int rc;
+   struct inode *inode;
+   struct ecryptfs_crypt_stat *crypt_stat;
+
+   inode = page->mapping->host;
+   crypt_stat = &ecryptfs_inode_to_private(inode)->crypt_stat;
+   if (!(crypt_stat->flags & ECRYPTFS_ENCRYPTED)) {
+       size_t size;
+       loff_t file_size = i_size_read(inode);
+       pgoff_t end_page_index = file_size >> PAGE_CACHE_SHIFT;
+
+       if (end_page_index < page->index)
+           size = 0;
+       else if (end_page_index == page->index)
+           size = file_size & ~PAGE_CACHE_MASK;
+       else
+           size = PAGE_CACHE_SIZE;
+
+       rc = ecryptfs_write_lower_page_segment(inode, page, 0, size);
+       if (unlikely(rc)) {
+           ecryptfs_printk(KERN_WARNING, "Error write "
+                   "page (upper index [0x%.16lx])\n", page->index);
+           ClearPageUptodate(page);
+       } else
+           SetPageUptodate(page);
+       goto out;
+   }

    /*
     * Refuse to write the page out if we are called from reclaim context
--
1.7.6.5

--