On Fri, 2017-04-21 at 18:16 +0900, damien.lemoal@xxxxxxx wrote: > @@ -250,11 +249,6 @@ int sd_zbc_setup_reset_cmnd(struct scsi_cmnd *cmd) > /* Unaligned request */ > return BLKPREP_KILL; > > - /* Do not allow concurrent reset and writes */ > - if (sdkp->zones_wlock && > - test_and_set_bit(zno, sdkp->zones_wlock)) > - return BLKPREP_DEFER; > - Hello Damien, Since concurrent zone resets and writes are easy to detect and since these indicate a bug in the application that submits these, should an error message be logged if that happens? Otherwise this patch looks fine to me. Bart.