On 08/11, Peter Zijlstra wrote: > > On Tue, Aug 11, 2020 at 08:45:16AM +0200, Oleg Nesterov wrote: > > > > ->jobctl is always modified with ->siglock held, do we really need > > WRITE_ONCE() ? > > In theory, yes. The compiler doesn't know about locks, it can tear > writes whenever it feels like it. Yes, but why does this matter? Could you spell please? Oleg.