Hi. On Sat, 2005-12-24 at 07:28, Greg KH wrote: > On Fri, Dec 23, 2005 at 04:22:44PM -0500, Alan Stern wrote: > > On Fri, 23 Dec 2005, Pavel Machek wrote: > > > > > Well, if you can find some elegant solution in the core, I think thats > > > the best way. > > > > > > You could set system_state to "suspending" or something like that, and > > > just if() out notifications in that case. > > > > How about simply adding a call to try_to_freeze() somewhere inside > > kernel/kmod.c:____call_usermodehelper()? That ought to do pretty much > > what I want, in theory. The hotplug processes would get frozen before > > /sbin/hotplug is exec'ed. > > On modern distros, /sbin/hotplug is set to NULL, so this isn't an issue. > We use netlink to send the data out, so this might not even be a problem > anymore... At resume time, prior to copying back the original kernel data, events can and do occur. FWIW, I've been using "if(freezer_is_on()) return 0" for a while in call_usermodehelper_keys, to good effect. Regards, Nigel
