Re: [PATCH v2 8/8] writeback: factor out balance_wb_limits to remove repeated code

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on 6/4/2024 2:09 AM, Tejun Heo wrote:
> Hello,
> 
> On Mon, Jun 03, 2024 at 02:39:18PM +0800, Kemeng Shi wrote:
>>> Isn't this a bit nasty? The helper skips updating states because it knows
>>> the caller is not going to use them? I'm not sure the slight code reduction
>>> justifies the added subtlety.
>>
>> It's a general rule that wb should not be limited if the wb is in freerun state.
>> So I think it's intuitive to obey the rule in both balance_wb_limits and it's
>> caller in which case balance_wb_limits and it's caller should stop to do anything
>> when freerun state of wb is first seen.
>> But no insistant on this...
> 
> Hmm... can you at least add comments pointing out that if freerun, the
> limits fields are invalid?
Sure, will add it in next version. Thanks
> 
> Thanks.
> 





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