On 10/9/23 03:52, Xiao Yang wrote:
> On 2023/9/21 6:57, Dave Jiang wrote:
>> +        if (daxctl_memory_online_no_movable(mem)) {
>> +            log_err(&rl, "%s: memory unmovable for %s\n",
>> +                    devname,
>> +                    daxctl_dev_get_devname(dev));
>> +            return -EPERM;
>> +        }
> Hi Dave,
> 
> It seems wrong to check if memory is unmovable by the return number of 
> daxctl_memory_online_no_movable(mem) here. IIRC, the return number of 
> daxctl_memory_online_no_movable(mem)/daxctl_memory_op(MEM_GET_ZONE) indicates 
> how many memory blocks have the same memory zone. So I think you should check 
> mem->zone and MEM_ZONE_NORMAL as daxctl_memory_is_movable() did.

Do you mean:
rc = daxctl_memory_online_no_movable(mem);
if (rc < 0)
        return rc;
if (rc > 0) {
        log_err(&rl, "%s memory unmovable for %s\n' ...);
        return -EPERM;
}

> 
> Besides, I send a patch to improve the implementation of 
> daxctl_memory_online_with_zone().
> https://lore.kernel.org/nvdimm/[email protected]/T/#u

Thanks. I added my review tag.

> 
> Best Regards,
> Xiao Yang

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