"Rafael J. Wysocki" <rjw@xxxxxxx> writes: > On Monday 24 May 2010, Felipe Balbi wrote: >> On Mon, May 24, 2010 at 02:46:54AM +0200, ext Rafael J. Wysocki wrote: >> >On Saturday 22 May 2010, Arve Hjønnevåg wrote: >> >> This patch series adds a suspend-block api that provides the same >> >> functionality as the android wakelock api. This version adds a >> >> delay before suspending again if no suspend blockers were used >> >> during the last suspend attempt. >> > >> >Patches [1-6/8] applied to suspend-2.6/linux-next >> >> funny thing is that even without sorting out the concerns plenty of >> developers had on the other thread, this series is still taken. What's >> the point in dicussing/reviewing the patches then ? > > I don't think the concerns you're referring to can be solved out. > Some people just don't like the whole idea and I don't think there's > any way we can improve the patches to make them happy. The only > "solution" they would be satisfied with would simply be rejecting > the feature altogether, although there are no practically viable > alternatives known to me. I'm not sure who the "some people" you're referring to are, but I'll assume I'm included in that group. I don't think this is a fair characterization of the objections, nor do I think "rejecting the feature altogether" is the only satisfactory answer. Speaking for myself, I find the idea of being able to suspend while idle a valid objective, and certainly see the usefulness of it for embedded systems. I'm also an owner and user of an Android phone, so I am certainly not out just to make life difficult for Android. The primary objection is not the end goal, but rather the implementation. In particular, the problematic redefintion of what it means to be idle, or "not doing work that's immediately useful to the user" to use the phrase from the changelog (where "useful" is still not defined.) This (re)definition completely bypasses all current idle infrastructure based on timers, scheduler, etc. and makes "usefulness" defined in terms of who holds suspend blockers. This of course will lead to a scattering of suspend blockers into any drivers/subsystems considered "useful", which by looking through current Android kernels is many of them. Kevin _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
