Hi, I am following up on the above, do you know where the associated mmdrop might be called? Thanks, Ryan On Fri, Mar 5, 2021 at 2:07 PM Ryan Sharpelletti <sharpelletti@xxxxxxxxxx> wrote: > > Hi, > > I suspect there is a corner case for io_uring in release 5.8. > > Can you please explain where the associated mmdrop/kthread_unuse_mm > calls for io_sq_thread_acquire_mm in io_init_req(...) are? > Specifically, what would happen if there was an error after calling > io_sq_thread_acquire_mm (for example, the -EINVAL a few lines after)? > > From what I can understand, it looks like the kthread_unuse_mm and > mmput might be handled in the call to io_sq_thread_acquire_mm in > io_sq_thread. However, I am not seeing where mmdrop might be called. > > Thanks, > Ryan
