Re: [EXT] Re: [PATCH 2/2] block: remove the per-bio/request write hint.

Jens Axboe
2022-03-10T19:10:39Z

On 3/10/22 11:50 AM, Luca Porzio (lporzio) wrote:
> Micron Confidential
>
>>
>> You do both realize that this is just the file specific hint? Inode based hints
>> will still work fine for UFS.
>>
>> --
>> Jens Axboe
>
> Jens,
>
> Thanks for this reply.
>
> This whole patch series removes support for per-bio write_hint.
> Without bio write_hint, F2FS won't be able to cascade Hot/Warm/Cold
> information to SCSI / UFS driver.
>
> This is my current understanding. I might be wrong but I don't think we
> Are concerned with inode hint (as well as file hints).

But ufs/scsi doesn't use it in mainline, as far as I can tell. So how
does that work?

--
Jens Axboe