On Wed, Jan 27, 2021 at 12:22 AM Kyotaro Horiguchi <horikyota....@gmail.com> wrote: > At Tue, 26 Jan 2021 11:00:56 +0200, Heikki Linnakangas <hlinn...@iki.fi> > wrote in > > Don't we potentially have the same problem with all on_dsm_detach > > callbacks? Looking at the other on_dsm_detach callbacks, I don't see > > any CHECK_FOR_INTERRUPT() calls in them, but it seems fragile to > > assume that. > > > > I'd suggest adding HOLD/RESUME_INTERRUPTS() to dsm_detach(). At least > > around the removal of the callback from the list and calling the > > callback. Maybe even over the whole function. > > Yes, I first came up with HOLD/RESUME_QUERY_INTERRUPTS() to the same > location.
+1, this seems like a good idea. This is a little bit like the code near the comments "Don't joggle the elbow of proc_exit".