Commit 403a85ff authored Oct 14, 2010 by Jeremy Fitzhardinge

xen/hvc: only notify if we actually sent something



Don't spam dom0/xenconsoled with events unless we've actually added
something to the ring.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>

parent 3654581e

drivers/char/hvc_xen.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -74,6 +74,7 @@ static int __write_console(const char *data, int len)
		wmb(); /* write ring before updating pointer */
		intf->out_prod = prod;

		if (sent)
		notify_daemon();
		return sent;
		}