On 22.10.2020 13:17, Roger Pau Monné wrote: > 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.
True, yet we're aiming at dropping this aspect again. Hence I've added "(albeit as a downside for the time being this requires disabling interrupts for a short period of time)". >> 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 <jbeul...@suse.com> > > Reviewed-by: Roger Pau Monné <roger....@citrix.com> Thanks. Jan
