Re: [PATCH 3/3] backports: Add kvcalloc()

On 11/19/19 9:59 AM, Johannes Berg wrote:
> On Sat, 2019-11-16 at 19:36 +0100, Hauke Mehrtens wrote:
>> kvcalloc() was added in kernel commit 1c542f38ab8d ("mm: Introduce
>> kvcalloc()") and is now used by the fq header filers.
> 
> Oops, I did the same some time ago but forgot to send it out.
> 
>> +{
>> +	return kvmalloc_array(n, size, flags | __GFP_ZERO);
> 
> I did end up wondering though if __GFP_ZERO actually worked on all old
> kernels?

__GFP_ZERO is at least defined on old kernel versions. I haven't seen an
error when building against 3.14 for example and it is already used
somewhere else in this file.

Hauke
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