Re: [PATCH 1/1] RFC: add pidfd_send_signal flag to reclaim mm while killing a process

[Michal Hocko]

On Fri 13-11-20 18:16:32, Andrew Morton wrote:
[...]
> It's all sounding a bit painful (but not *too* painful).  But to
> reiterate, I do think that adding the ability for a process to shoot
> down a large amount of another process's memory is a lot more generally
> useful than tying it to SIGKILL, agree?

I am not sure TBH. Is there any reasonable usecase where uncoordinated
memory tear down is OK and a target process which is able to see the
unmapped memory?
-- 
Michal Hocko
SUSE Labs