[Gluster-devel] answer_list in EC xlator

[fanghuang.data at yahoo.com]

Hi all,
As I reading the source codes of EC xlator, I am confused by the cbk_list and answer_list defined in struct _ec_fop_data. Why do we need two lists to combine the results of callback? 
Especially for the answer_list, it is initialized in ec_fop_data_allocate, then the nodes are added in ec_cbk_data_allocate. Without being any accessed during the lifetime of fop, the whole list finally is released in ec_fop_cleanup. Do I miss something for the answer_list? Regards,
Fang Huang
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