On 05/15/2020 08:55 PM, Coly Li wrote: > REQ_OP_ZONE_FINISH = 12, > + /* reset a zone write pointer */ > + REQ_OP_ZONE_RESET = 13, I think 13 is taken, I found this in block tree branch :- for-5.8/block 316 REQ_OP_ZONE_FINISH = 12, 317 /* write data at the current zone write pointer */ 318 REQ_OP_ZONE_APPEND = 13,