Re: [PATCH v3 1/2] mm: introduce process_mrelease system call

[Michal Hocko]

On Thu 22-07-21 19:03:56, Shakeel Butt wrote:
> On Thu, Jul 22, 2021 at 6:14 PM Suren Baghdasaryan <surenb@xxxxxxxxxx> wrote:
> >
> [...]
> > +
> > +       mmap_read_lock(mm);
> 
> How about mmap_read_trylock(mm) and return -EAGAIN on failure?

Btw. wether there is a non-blocking variant or not we should use
killable waiting to make sure the task calling into this is killable
by userspace (e.g. to implement a timeout based approach).
-- 
Michal Hocko
SUSE Labs