Re: [PATCH v2 3/8] staging: erofs: move per-CPU buffers implementation to utils.c

[Gao Xiang <gaoxiang25@huawei.com>]

Hi Chao,

On 2019/6/21 15:57, Chao Yu wrote:
> On 2019/6/21 0:07, Gao Xiang wrote:
>> +static inline void *erofs_get_pcpubuf(unsigned int pagenr)
>> +{
>> +	return ERR_PTR(-ENOTSUPP);
>> +}
> 
> [snip]
> 
>> +	percpu_data = erofs_get_pcpubuf(0);
> 
> If erofs_get_pcpubuf may return error once EROFS_PCPUBUF_NR_PAGES equals to
> zero, we'd better to check the error number here.

decompressor.c will be built-in only when decompression is enabled
and if decompression is enabled EROFS_PCPUBUF_NR_PAGES is not zero.

But I think introducing some error handling logic is not bad as well.
Will fix in the next version.

Thanks,
Gao Xiang

> 
> Thanks,
>