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