On Tue 16-03-21 12:43:12, Al Viro wrote: [...] > AFAICS, Kees wants to protect against ->show() instances stomping beyond > the page size. What I don't get is what do you get from using seq_file > if you insist on doing raw access to the buffer rather than using > seq_printf() and friends. What's the point? I do not think there is any and as you have said in other response we should really make seq_get_buf internal thing to seq_file and be done with that. If there is a missing functionality that users workaround by abusing seq_get_buf then it should be added into seq_file interface. -- Michal Hocko SUSE Labs