On Tue, Jan 15, 2013 at 10:32 AM, Tejun Heo <tj@xxxxxxxxxx> wrote: > > I think the root problem here, apart from request_module() from block > - which is a bit nasty but making that part completely async would too > be quite nasty albeit in a different way - is that > async_synchronize_full() is way too indescriminate. It's something > only suitable for things like the end of system init. > > I'm wondering whether what we need is a rudimentray nesting like the > following. I think that is a good solution if it works, but look out: we need to synchronize across *all* domains, not just the default one. The sd.c code, for example, uses its own "scsi_sd_probe_domain" for example, and we *do* want to synchronize with it. Can you do that with your suggested interface (ie it would have to be a *global* sequence number). Linus -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html