[PATCH v3 5/5] powerpc/bpf: use patch_instructions()

[Hari Bathini]

On 25/08/23 9:16 pm, Christophe Leroy wrote:
> 
> 
> Le 25/08/2023 à 17:18, Hari Bathini a écrit :
>> Use the newly introduced patch_instructions() that handles patching
>> multiple instructions with one call. This improves speed of exectution
>> for JIT'ing bpf programs.
>>
>> Without this patch (on a POWER9 lpar):
>>
>>     # time modprobe test_bpf
>>     real    2m59.681s
>>     user    0m0.000s
>>     sys     1m44.160s
>>     #
>>
>> With this patch (on a POWER9 lpar):
>>
>>     # time modprobe test_bpf
>>     real    0m5.013s
>>     user    0m0.000s
>>     sys     0m4.216s
>>     #
> 
> Right, significant improvement. Forget by comment to patch 1, I should
> have read the series up to the end. Just wondering why you don't just
> put patch 4 up front ?

I wanted to remove the dependency for bpf_prog_pack enablement
patches with this improvement, just in case..

- Hari