On 2024/07/31 19:29, Vlastimil Babka wrote:
>> @@ -827,8 +827,10 @@ kvmalloc_array_node_noprof(size_t n, size_t size, gfp_t
>> flags, int node)
>> {
>> size_t bytes;
>>
>> - if (unlikely(check_mul_overflow(n, size, &bytes)))
>> + if (unlikely(check_mul_overflow(n, size, &bytes))) {
>> + BUG_ON(flags & __GFP_NOFAIL);
>
> Shouldn't we produce some kind of warning also in the no-NOFAIL case?
> Returning a NULL completely silently feels wrong.
Doesn't embedding macros like BUG_ON() into inline functions needlessly bloat
the kernel size? I think we can call a non-inlined function (that is marked
as EXPORT_SYMBOL()) for emitting warning.
