On 01/28, Al Viro wrote: > > On Mon, Jan 27, 2014 at 06:39:31PM +0100, Oleg Nesterov wrote: > > On 01/27, Al Viro wrote: > > > > > > Why is _TIF_UPROBE *not* a part > > > of _TIF_DO_NOTIFY_MASK, for example? > > > > Yes, please see another email. That is why uprobe_deny_signal() > > sets TIF_NOTIFY_RESUME along with TIF_UPROBE. > > *grumble* Can it end up modifying *regs? From very cursory reading of > kernel/events/uprobe.c it seems to do so, so we probably want to leave > via iretq if that has hit, right?
But we do this anyway, restore_args path does iretq? I mean, uprobe_notify_resume() is called from do_notify_resume(), it should be fine to modify*regs there? Oleg. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
