Re: [PATCH v15 00/13] support zoned block devices with non-power-of-2 zone sizes

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On 9/30/22 1:38 PM, Bart Van Assche wrote:
> On 9/30/22 08:13, Jens Axboe wrote:
>> On 9/29/22 12:31 AM, Pankaj Raghav wrote:
>>>> Hi Jens,
>>>> ?? Please consider this patch series for the 6.1 release.
>>>>
>>>
>>> Hi Jens, Christoph, and Keith,
>>> ? All the patches have a Reviewed-by tag at this point. Can we queue this up
>>> for 6.1?
>>
>> It's getting pretty late for 6.1 and I'd really like to have both Christoph
>> and Martin sign off on these changes.
> 
> Hi Jens,
> 
> Agreed that it's getting late for 6.1.
> 
> Since this has not been mentioned in the cover letter, I want to add
> that in the near future we will need these patches for Android
> devices. JEDEC is working on supporting zoned storage for UFS devices,
> the storage devices used in all modern Android phones. Although it
> would be possible to make the offset between zone starts a power of
> two by inserting gap zones between data zones, UFS vendors asked not
> to do this and hence need support for zone sizes that are not a power
> of two. An advantage of not having to deal with gap zones is better
> filesystem performance since filesystem extents cannot span gap zones.
> Having to split filesystem extents because of gap zones reduces
> filesystem performance.

Noted. I'll find some time to review this as well separately, once we're
on the other side of the merge window.

-- 
Jens Axboe



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