On Thu, Aug 04, 2011 at 10:46:43AM +0400, MRU.Ilya wrote: > Synchronic's line disciplines(ppp_synctty, hdlc) can't work with > pseudo terminals. > > If frames send very fast from one side(master/slave) to other one, > frames merge in one (merge point "flip buffer") and the other side > can read only one big frame. > But sync line discipline need one frame in one read. > > For push one frame to ldisc I propose small patch, but this regression for > commit e043e42bdb66885b3ac10d27a01ccb9972e2b0a3. > > I don't find any mutexes and other things forbidden in not user context, > in function flush_to_ldisc() , and I think this patch > is true and this function can called from any context. But I not sure. > > Relative commit 86d23a057e718f73adc15e463c643d6e014a19cd. > >
> --- orig/pty.c 2011-07-13 07:29:43.000000000 +0400 > +++ work/pty.c 2011-08-03 20:59:01.000000000 +0400 > @@ -204,6 +204,7 @@ > clear_bit(TTY_OTHER_CLOSED, &tty->link->flags); > set_bit(TTY_THROTTLED, &tty->flags); > retval = 0; > + tty->low_latency = 1; I really don't think this is correct. Also, you forgot to read Documentation/SubmittingPatches for how to properly format and send a patch and who to send it to... thanks, greg k-h _______________________________________________ stable mailing list stable@linux.kernel.org http://linux.kernel.org/mailman/listinfo/stable
