On Tue, Nov 02, 2004 at 06:13:35PM +1100, Benjamin Herrenschmidt wrote: > > The idea here is to add to the call_usermodehelper() API a plug/unplug > semantic (like the BIO). When "plugged", usermodehelper calls would > stack up, and would be issued in one shot when "unplugged". By default, > at boot, we would be "plugged" until some time, either after the > initcalls or at a given initcall level, that remains to be decided. > During suspend/resume, we would plug/unplug as well, possibly directly > from the PM core, just before starting the driver suspend/resume dance. No, "plugging" call_usermodehelper() would instantly block your boot process, as the hotplug events would not be able to be generated from initial device discovery. This has been discussed a lot in the past on lkml (in the context of "plugging" /sbin/hotplug). See the thread there for the end result. thanks, greg k-h
