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, >