2010/6/6 Thomas Gleixner <tglx@xxxxxxxxxxxxx>: > On Sat, 5 Jun 2010, Arve Hjønnevåg wrote: >> 2010/6/5 Thomas Gleixner <tglx@xxxxxxxxxxxxx>: >> > On Sat, 5 Jun 2010, Arve Hjønnevåg wrote: >> >> 2010/6/5 Thomas Gleixner <tglx@xxxxxxxxxxxxx>: >> >> > On Sat, 5 Jun 2010, Arve Hjønnevåg wrote: >> >> >> >> > That download might take a minute or two, but that's not an >> >> >> >> > justification for the crapplication to run unconfined and prevent >> >> >> >> > lower power states. >> >> >> >> > >> >> >> >> >> >> >> >> I agree, but this is not a simple problem to solve. >> >> >> > >> >> >> > Not with suspend blockers, but with cgroup confinement of crap, it's >> >> >> > straight forward. >> >> >> > >> >> >> >> >> >> I don't think is is straight forward. If the a process in the frozen >> >> >> group holds a resource that a process in the unfrozen group needs, how >> >> >> do deal with that? >> >> > >> >> > I'm going to fix the framework which puts the group into freeze state >> >> > w/o making sure that there is no held shared resource. Come on it's >> >> > not rocket science. >> >> > >> >> >> >> I'm not sure which framework you are talking about here, but I don't >> >> think there is a single framework that knows about all shared >> >> resources. >> > >> > Damn, it's not me talking about "our framework", you are mentioning >> > when it fits your needs. >> >> You said you were going to fix the framework. I did know if you were >> talking about the cgroup framework, or the android user-space >> frameworks. I don't think either has knowledge about all shared >> resources. > > The cgroup freezer makes sure that there are no in kernel resources > blocked. Of course the user space side has to do the same and it's not > rocket science. > It is much easier to make sure there are no kernel resources held than that there are no resources held in user-space. The kernel threads have to return to a safe location before they get frozen, where user threads are just frozen wherever they are. -- Arve Hjønnevåg _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
