2 files changed, 9 insertions, 2 deletions

diff --git a/fs/jffs2/file.c b/fs/jffs2/file.c
index 1c0a08d711aa..3989f7e09f7f 100644
--- a/fs/jffs2/file.c
+++ b/fs/jffs2/file.c
@@ -27,13 +27,20 @@ static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
                         struct page **pagep, void **fsdata);
 static int jffs2_readpage (struct file *filp, struct page *pg);
 
-int jffs2_fsync(struct file *filp, int datasync)
+int jffs2_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
 {
         struct inode *inode = filp->f_mapping->host;
         struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+        int ret;
+
+        ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
+        if (ret)
+                return ret;
 
+        mutex_lock(&inode->i_mutex);
         /* Trigger GC to flush any pending writes for this inode */
         jffs2_flush_wbuf_gc(c, inode->i_ino);
+        mutex_unlock(&inode->i_mutex);
 
         return 0;
 }
diff --git a/fs/jffs2/os-linux.h b/fs/jffs2/os-linux.h
index 65c6c43ca482..9c252835e8e5 100644
--- a/fs/jffs2/os-linux.h
+++ b/fs/jffs2/os-linux.h
@@ -158,7 +158,7 @@ extern const struct inode_operations jffs2_dir_inode_operations;
 extern const struct file_operations jffs2_file_operations;
 extern const struct inode_operations jffs2_file_inode_operations;
 extern const struct address_space_operations jffs2_file_address_operations;
-int jffs2_fsync(struct file *, int);
+int jffs2_fsync(struct file *, loff_t, loff_t, int);
 int jffs2_do_readpage_unlock (struct inode *inode, struct page *pg);
 
 /* ioctl.c */