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Date:   Wed, 22 Sep 2021 10:07:10 +0800
From:   "Huang, Ying" <ying.huang@...el.com>
To:     John Hubbard <jhubbard@...dia.com>
Cc:     Weizhao Ouyang <o451686892@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        <linux-kernel@...r.kernel.org>, <linux-mm@...ck.org>,
        Anshuman Khandual <khandual@...ux.vnet.ibm.com>,
        Michal Hocko <mhocko@...e.com>,
        Pavel Tatashin <pasha.tatashin@...een.com>,
        Yang Shi <yang.shi@...ux.alibaba.com>, Zi Yan <ziy@...dia.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Minchan Kim <minchan@...nel.org>,
        Mina Almasry <almasrymina@...gle.com>,
        "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        Oscar Salvador <osalvador@...e.de>, Wei Xu <weixugc@...gle.com>
Subject: Re: [PATCH v2 2/2] mm/debug: sync up latest migrate_reason to
 migrate_reason_names

John Hubbard <jhubbard@...dia.com> writes:

> 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.

Sorry, I didn't read your latest email.  The solution looks good!
Thanks!

Best Regards,
Huang, Ying

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