David Brownell <[EMAIL PROTECTED]> writes: > On Sunday 06 March 2005 3:32 pm, Eric W. Biederman wrote: > > > > Then there is the primary case, kexec case where we can trust > > the kernel code. Before a reboot we call the reboot_notifiers > > and the device_shutdown() (which calls the appropriate device method). > > The expectation is that the drivers will shutdown DMA and IRQs from > > their hardware. > > Most drivers don't have shutdown() methods, but they do > have remove() methods that clean everything up. Those > methods tend to vanish from statically linked kernels. > > Seems that if kexec were to use remove() methods that'd > probably resolve a lot of those issues. I confess I > still don't see much point to a shutdown() method, unless > maybe it's to avoid using reboot notifiers for that subset > of remove() logic.
I tend to agree, but I lost that argument. The primary argument was that in cases where the system had oopsed or otherwise was not 100% stable. The remove() method might not be stable. But a shutdown() method could be. My observation has been that 9 times out of 10 nothing really needs to be done. But it is clear there are exceptions to that rule. Eric ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
