On Mon, 12 Nov 2012, Tejun Heo wrote: > Hello, Alan. > > On Mon, Nov 12, 2012 at 02:18:11PM -0500, Alan Stern wrote: > > > Weren't you gonna do something different about this? I mean, if sr > > > knows that autopm kicked in, it can simply tell the block layer that > > > nothing is going on. Wouldn't that be simpler? > > > > It wouldn't work for non-ZP drives. They do need to be polled, even > > when suspended. > > Hmmm... a bit confused, what would autopm do for those non-ZP devices? > Would it make any difference? It wouldn't do anything for the device, but it would allow the device's parent to go to low power in between polls. That's why Aaron at one point suggested lengthening the polling interval. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
