On Tue, Oct 20, 2020 at 04:09:41PM +0200, Jan Beulich wrote: > Some lock wants to be held to make sure the port doesn't change state, > but there's no point holding the per-domain event lock here. Switch to > using the finer grained per-channel lock instead.
While true that's a fine grained lock, it also disables interrupts, which the global event_lock didn't. > FAOD this doesn't guarantee anything towards in particular > evtchn_fifo_set_pending(), as for interdomain channels that function > would be called with the remote side's per-channel lock held. > > Signed-off-by: Jan Beulich <[email protected]> Reviewed-by: Roger Pau Monné <[email protected]> Thanks, Roger.
