On Tue, Sep 30, 2014 at 11:06:34PM +0200, Pavel Machek wrote: > > On Mon 2014-09-22 13:23:54, Dmitry Torokhov wrote: > > On Monday, September 22, 2014 09:49:06 PM Pavel Machek wrote: > > > On Thu 2014-09-11 13:23:54, Dmitry Torokhov wrote: > > > > On Thu, Sep 11, 2014 at 12:59:25PM -0700, James Bottomley wrote: > > > > > > Yes, but we mostly do this anyway. SCSI for instance does asynchronous > > > > > scanning of attached devices (once the cards are probed) > > > > > > > > What would it do it card was a bit slow to probe? > > > > > > > > > but has a sync > > > > > point for ordering. > > > > > > > > Quite often we do not really care about ordering of devices. I mean, > > > > does it matter if your mouse is discovered before your keyboard or > > > > after? > > > > > > Actually yes, I suspect it does. > > > > > > I do evtest /dev/input/eventX by hand, occassionaly. It would be > > > annoying if they moved between reboots. > > > > I am sorry but you will have to cope with such annoyances. It' snot like we > > fail to boot the box here. > > > > The systems are now mostly hot-pluggable and userland is supposed to > > handle it, and it does, at least for input devices. If you want stable naming > > use udev facilities to rename devices as needed or add needed symlinks (by-id, > > etc.). > > Well, it would be nice if udev was not mandatory. Do the sync points > for ordering actually cost us something? Yes, boot time. We can save a second or two off the boot time if we probe several devices/drivers simultaneously. Thanks. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
