Re: [PATCH 0/6] ZNS: Extra features for current patches

["Javier González" <javier@javigon.com>]

On 25.06.2020 16:48, Matias Bjørling wrote:
>On 25/06/2020 15.04, Matias Bjørling wrote:
>>On 25/06/2020 14.21, Javier González wrote:
>>>From: Javier González <javier.gonz@samsung.com>
>>>
>>>This patchset extends zoned device functionality on top of the existing
>>>v3 ZNS patchset that Keith sent last week.
>>>
>>>Patches 1-5 are zoned block interface and IOCTL additions to expose ZNS
>>>values to user-space. One major change is the addition of a new zone
>>>management IOCTL that allows to extend zone management commands with
>>>flags. I recall a conversation in the mailing list from early this year
>>>where a similar approach was proposed by Matias, but never made it
>>>upstream. We extended the IOCTL here to align with the comments in that
>>>thread. Here, we are happy to get sign-offs by anyone that contributed
>>>to the thread - just comment here or on the patch.
>>
>>The original patchset is available here: 
>>https://lkml.org/lkml/2019/6/21/419
>>
>>We wanted to wait posting our updated patches until the base patches 
>>were upstream. I guess the cat is out of the bag. :)
>>
>>For the open/finish/reset patch, you'll want to take a look at the 
>>original patchset, and apply the feedback from that thread to your 
>>patch. Please also consider the users of these operations, e.g., dm, 
>>scsi, null_blk, etc. The original patchset has patches for that.
>>
>Please disregard the above - I forgot that the original patchset 
>actually went upstream.
>
>You're right that we discussed (I at least discussed it internally 
>with Damien, but I can't find the mail) having one mgmt issuing the 
>commands. We didn't go ahead and added it at that point due to ZNS 
>still being in a fluffy state.
>

Does the proposed IOCTL align with the use cases you have in mind? I'm
happy to take it in a different series if you want to add patches to it
for other drivers (scsi, null_blk, etc.).