size_t count, loff_t pos, loff_t *ppos)
{
struct address_space * mapping = filp->f_mapping;
size_t count, loff_t pos, loff_t *ppos)
{
struct address_space * mapping = filp->f_mapping;
ret = __xip_file_write (filp, buf, count, pos, ppos);
ret = __xip_file_write (filp, buf, count, pos, ppos);