Re: [PATCH v2 2/2] mm/debug: sync up latest migrate_reason to migrate_reason_names

[John Hubbard]

On 9/21/21 11:00, John Hubbard wrote:
> On 9/21/21 07:06, Huang, Ying wrote:
> ...
> > > > Can we add BUILD_BUG_ON() somewhere to capture at least some
> > > > synchronization issue?
> > >
> > > Hi Huang, we discussed this in the v1 thread with you and John, seems you
> > > missed it. Now we just add a comment to do the synchronization, and we can
> > > figure out a more general way to use strings which in trace_events straight.
> >
> > Got it!  And I think we can add the BUILD_BUG_ON() now and delete it
> > when we have a better solution to deal with that.  But if you can work
> > out a better solution quickly, that's fine to ignore this.
>
> I have a solution now, it's basically what I sent earlier. There appears to be
> some confusion about it. I'll send it out as a patch that builds on top of
> these two, hopefully in a few hours, if no problems pop up during testing.

Oh OK, I think the confusion was on my end: you are hoping to integrate the
TRACE_DEFINE_ENUM in with this. Let me take a peek there, because otherwise,
we can only reduce, but not fully remove the duplication.

thanks,
--
John Hubbard
NVIDIA