On Mon, 2017-04-24 at 16:36 +0200, Peter Rosin wrote: [...] > > How about an atomic use_count on the mux_control, a bool shared that is > > only set by the first consumer, and controls whether selecting locks? > > That has the drawback that it is hard to restore the mux-control in a safe > way so that exclusive consumers are allowed after the last shared consumer > puts the mux away. True. > Agreed, it's a corner case, but I had this very similar > patch going through the compiler when I got this mail. Does it work as well > as what you suggested? Yes, this patch works just as well. regards Philipp -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
