On Fri, Nov 30, 2018 at 2:33 AM Oleg Nesterov <oleg@xxxxxxxxxx> wrote: > > On 11/29, Jürg Billeter wrote: > > > > On Thu, 2018-11-29 at 13:34 +0100, Oleg Nesterov wrote: > > > So I think the patch is mostly fine, the only problem I can see is that > > > PR_SET_KILL_DESCENDANTS_ON_EXIT can race with PR_SET_CHILD_SUBREAPER, they both > > > need to update the bits in the same word. > > > > Good point. I'll make it a regular bool instead of a bitfield for v2, > > Agreed, Is it worth doing something for singal_struct like we did for task_struct with the TASK_PFA_* and atomic_flags? -- Kees Cook