Re: [PATCH v5 07/27] libmultipath: Add sysfs helpers

On 27/07/2026 16:03, [email protected] wrote:
>> +bool mpath_iopolicy_store(enum mpath_iopolicy_e *iopolicy, const char *buf)
>> +{
>> +	int i;
>> +
>> +	for (i = 0; i < ARRAY_SIZE(mpath_iopolicy_names); i++) {
>> +		if (sysfs_streq(buf, mpath_iopolicy_names[i])) {
>> +			mpath_iopolicy_update(iopolicy, i);
>> +			return true;
>> +		}
>> +	}
>> +
>> +	return false;
>> +}
> [Severity: Medium]
> When updating the multipath iopolicy via mpath_iopolicy_store(), does this
> leave stale paths in the current_path arrays?
> 
> If the policy is changed (e.g., from round-robin to NUMA), the policy enum is
> updated but the cached current_path is not cleared. When mpath_numa_path()

It is the job of the driver to do any path clearing or similar - see 
scsi_mpath_device_iopolicy_store()