On Thu, 3 May 2012 14:37:43 +0200 Ivo Sieben <meltedpianoman@xxxxxxxxx> wrote: > Solved unnecessary schedule latency in the TTY layer when used in > realtime context: > The global wait_queue that is used for line discipline idle handling > is moved to a separate wait_queue for each line instance. This > prevents unnecessary blocking on one line, because of idle handling > on another line. > > Note: In a PREEMPT_RT system "normal" spin locks behave like mutexes > and no interrupts (and therefor no scheduling) is disabled. > > Signed-off-by: Ivo Sieben <meltedpianoman@xxxxxxxxx> And this one as a standalone I think we should merge. I'm surprised it makes a difference but its small, clean and localises a lock which is a good thing. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
