On Thu, Oct 11, 2012 at 12:11 PM, Oliver Neukum <oneukum@xxxxxxx> wrote: > On Thursday 11 October 2012 11:18:22 Ming Lei wrote: >> Currently scsi disk can only be runtime suspended when the device is not >> opened, so are you sure that the paging out above can cause IO on a suspend >> usb mass storage disk which is not mounted or opened by utility now? > > We definitely do not wish to keep it that way. People at Intel are currently working > on better power management for sd, which would allow full autosuspend. OK, got it. For auto-resume situation, it can be solved with switching the gpf_t flag runtime inside helper, but I think it is better to do it after the sd's full autosuspend is seen in -next tree. For error handling case, it is inevitably for usbnet to allocate memory with GFP_KERNEL because no usbnet drivers have implemented .pre_reset and .post_reset callback, and no such actual problems have been reported until now, so it should be OK to not consider the case now. So could we merge the patch set[1-11] first? Thanks, -- Ming Lei -- 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
