On Tue, Jun 25, 2019 at 11:07 AM Cong Wang <xiyou.wangc...@gmail.com> wrote: > On one hand, its callers should not need to worry about details > like overflow. On the other hand, in fact it does exactly what its > callers tell it to do, the problematic part is actually the > incremented id. On 64bit, it is fairly easy, we can just simply > know 'long' is longer than 32bit and leverage this to detect overflow, > but on 32bit this clearly doesn't work. > > Let me think about it.
Davide, do you mind to try the attached patch? It should handle this overflow case more gracefully, I hope. Thanks.
idr_get_next_ul.diff
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