On Wed, 27 Jun 2012, Glauber Costa wrote: > > > Nothing, but I also don't see how to prevent that. > > > > You can test for current->flags & PF_KTHREAD following the check for > > in_interrupt() and return true, it's what you were trying to do with the > > check for !current->mm. > > > > am I right to believe that if not in interrupt context - already ruled out - > and !(current->flags & PF_KTHREAD), I am guaranteed to have a mm context, and > thus, don't need to test against it ? > No, because an mm may have been detached in the exit path by running exit_mm(). We'd certainly hope that there are no slab allocations following that point, though, but you'd still need to test current->mm. -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
