On Thu, 2010-07-01 at 18:05 +0300, Artem Bityutskiy wrote: > From: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx> > > This patch makes the cache_cleaner workqueue deferrable, to prevent > unnecessary system wake-ups, which is very important for embedded > battery-powered devices. > > do_cache_clean() is called every 30 seconds at the moment, and often > makes the system wake up from its power-save sleep state. With this > change, when the workqueue uses a deferrable timer, the > do_cache_clean() invocation will be delayed and combined with the > closest "real" wake-up. This improves the power consumption situation. > > Note, I tried to create a DECLARE_DELAYED_WORK_DEFERRABLE() helper > macro, similar to DECLARE_DELAYED_WORK(), but failed because of the > way the timer wheel core stores the deferrable flag (it is the > LSBit in the time->base pointer). My attempt to define a static > variable with this bit set ended up with the "initializer element is > not constant" error. > > Thus, I have to use run-time initialization, so I created a new > cache_initialize() function which is called once when sunrpc is > being initialized. > > Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@xxxxxxxxx> Bruce, I did some git-logging, and found out that sunrpc stuff goes from you, from Trond, and from David, and MAINTAINERS also mentions Neil. Whom should I ping WRT to merging this patch? -- Best Regards, Artem Bityutskiy (Артём Битюцкий) -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
