On 2018-07-13 10:33:54 [+0200], Esben Haabendal wrote: > But is the lock ordering in tty_buffer_flush() really needed? > Could we move the > > if (ld && ld->ops->flush_buffer) > ld->ops->flush_buffer(tty); > > lines out of the &buf->lock section? I don't think that any code > outside of tty_buffer.c should touch the port->buf code, and thus should > not need to hold the &buf->lock. You could try this out and see what happens. If you attempt to change the locking then I suggest you involve upstream. I haven't looked too closely into it. I remember Peter wasn't too happy about the locking while the "low latency" shortcut was in and then he removed it. > /Esben Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
