https://bugzilla.kernel.org/show_bug.cgi?id=200951

--- Comment #13 from Chao Yu (c...@kernel.org) ---
(In reply to vicencb from comment #12)
> As stated in the bug description, there is an udev rule to set

Sorry, I missed this one... :(

> the provisioning_mode attribute to unmap. When searching for
> this attribute name, i found this:
> drivers/scsi/sd.c:749
>   blk_queue_max_discard_sectors(q, ...);
>   blk_queue_flag_set(QUEUE_FLAG_DISCARD, q);
> 
> So, it looks like the answer is yes, there is an interface to
> turn on discard of device in real time.

Alright, let me send one patch to fix this issue.

> 
> Regards,
>   Vicenç.

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