Christoph Lameter wrote:
>> I disagree. There are plenty of boundary conditions where 0 is not
>> really a special case, and making it a special case just complicates
>> things. I think at least some of the patches posted to silence this
>> warning have been generally negative for code quality. If we were
>> seeing lots of zero-sized allocations then that might indicate something
>> is amiss, but it seems to me that there's just a scattered handful.
>>
>> I agree that it's always a useful debugging aid to make sure that
>> allocated regions are not over-run, but 0-sized allocations are not
>> special in this regard.
>>
>
> Still insisting on it even after the discovery of the cpuset kmalloc(0) issue?
>
Sure. That was a normal buffer-overrun bug. There's nothing special
about 0-sized allocations.
J
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