taglinefilesource code
newtime816fs/buffer.cint newtime;
newtime820fs/buffer.cnewtime = jiffies + (flag ? bdf_prm.b_un.age_super : 
newtime822fs/buffer.cif(!buf->b_flushtime || buf->b_flushtime > newtime)
newtime823fs/buffer.cbuf->b_flushtime = newtime;