On Thu, 2010-05-27 at 17:45 -0700, Arve Hjønnevåg wrote: > What happens if the user presses the button right before you set QoS > of 'user apps' to QS_NONE? > To me it looks like this solution would result in this sequence which > may ignore the button press: > Button pushed > Button driver sets QoS of app it wakes to QS_ABOVESUSPEND > Set QoS of 'user apps' to QS_NONE I don't think we should change app QoS parameters, but change service provider parameters. For instance, suppose the filesystem-IO QoS has 3 levels: High, Normal and Idle. Then if we assign Idle to updatedb, we'll service it as long as the filesystem-server QoS has a higher level (High and Normal). When we change the filesystem-serves' QoS to idle, it finds there is nothing to keep it servicing stuff and it'll block pending requests, updatedb stops being runnable and we're good. _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
