Ming,

On 9/10/17 14:16, Ming Lei wrote:
> On Fri, Sep 08, 2017 at 01:16:39AM +0900, Damien Le Moal wrote:
>> Using scsi_device_from_queue(), return the scsi_disk structure
>> associated with a request queue if the device is a disk.
>> Export this function to make it available to modules.
>>
> 
> This approach may be a little over-kill, actually gendisk is the
> parent of request queue in kobject tree(see blk_register_queue()),
> that might be an easy way to retrieve disk attached to the queue.

Yes. It is a little extreme.
I am currently preparing a V3 that will have a softer touch.

Best regards.

-- 
Damien Le Moal,
Western Digital

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