Anthony Liguori wrote: > >>It's racy with select(). A better fix would be to create a pipe and write > >>to that pipe in the SIGWINCH handler. You should then register an io > >> > > > >Maybe a bottom half would work? The scheduling of a bh shouldn't > >constitute "real work". > > I think it still suffers from the same race condition so today it > wouldn't work. You could fix the bottom half scheduling though so that > you could safely schedule a bottom half from a signal handler (using > roughly the same trick). Fwiw, it's perfectly sensible to have a single pipe which is shared by all signal handlers, just used to say "check for work flags set". -- Jamie -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
