On Fri, 2 Dec 2011, Sarah Sharp wrote: > > > Make the UAS disconnect method go through the same process as the > > > pre_reset method to quiesce all command submission, wait for all URBs to > > > be killed, and free the stream rings. > > > > Not the same method at all. You have to call scsi_remove_host() first, > > so that the SCSI layer can clean up after itself. > > Ok, gotcha. > > > Once that's done, > > it's okay to go through the pre_reset procedue. (If the SCSI layer > > behaves properly, it shouldn't have any active commands after > > scsi_remove_host() returns, anyway, so pre_reset won't have anything > > to do.) > > There still might be commands waiting in the UAS workqueue. Unless the > SCSI layer will call the abort handler for all pending commands when > scsi_remove_host() is called? The SCSI layer doesn't do anything much; this is handled by the block layer. I don't know exactly what it does. It might cancel outstanding requests or wait for them to complete. Alan Stern -- 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
