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

[Jens Axboe]

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