On Fri, Nov 24, 2023 at 03:49:46PM +0000, Mark Brown wrote: > On Fri, Nov 24, 2023 at 03:27:48PM +0000, Greg Kroah-Hartman wrote: > > On Fri, Nov 24, 2023 at 03:21:40PM +0000, Mark Brown wrote: > > > > This came out of some discussions about trying to handle emergency power > > > failure notifications. > > > I'm sorry, but I don't know what that means. Are you saying that the > > kernel is now going to try to provide a hard guarantee that some devices > > are going to be shut down in X number of seconds when asked? If so, why > > not do this in userspace? > > No, it was initially (or when I initially saw it anyway) handling of > notifications from regulators that they're in trouble and we have some > small amount of time to do anything we might want to do about it before > we expire. So we are going to guarantee a "time" in which we are going to do something? Again, if that's required, why not do it in userspace using a RT kernel? thanks, greg k-h