static int jffs2_commit_write (struct file *filp, struct page *pg,
unsigned start, unsigned end);
static int jffs2_prepare_write (struct file *filp, struct page *pg,
static int jffs2_commit_write (struct file *filp, struct page *pg,
unsigned start, unsigned end);
static int jffs2_prepare_write (struct file *filp, struct page *pg,