On Fri, 30 Oct 2015, Jiri Kosina wrote: > On Fri, 30 Oct 2015, Pavel Machek wrote: > > > > I would say instead "no I/O is allowed from now on". Maybe that's an > > > overstatement, but I think it comes closer to the truth. > > But that's what PM callbacks are for.
Why are PM callbacks any more suitable than the freezer? The most natural implementation would be for the callback routine to set a flag; at various strategic points the kthread would check the flag and if it was set, call a routine that sits around and waits for the suspend to be over. How does that differ from using the freezer, apart from being more cumbersome and involving more code? Also, you never replied to my question about suspend vs. hibernation. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
