tcmu_cmd_entry
struct tcmu_cmd_entry *entry;
struct tcmu_cmd_entry *entry, bool keep_buf)
struct tcmu_cmd_entry *entry = udev->cmdr + udev->cmdr_last_cleaned;
BUILD_BUG_ON((sizeof(struct tcmu_cmd_entry) % TCMU_OP_ALIGN_SIZE) != 0);
return max(offsetof(struct tcmu_cmd_entry, req.iov[iov_cnt]),
sizeof(struct tcmu_cmd_entry));