mounting 4k blocksize on e.g. 64k hosts

[Ian Kent]

On 7/12/24 04:21, Gao Xiang wrote:
>
>
> On 2024/12/7 04:10, Colin Walters wrote:
>> On Fri, Dec 6, 2024, at 2:46 PM, Gao Xiang wrote:
>>
>>> Did you try upstream kernels? It's already supported upstream
>>> since Linux 6.4.
>>
>> Sorry, my bad. (It should have occurred to me to check, but this one 
>> popped back up on my radar when I'm trying to do several other things 
>> at the same time).
>>
>> Anyways looks like the fix specifically was 
>> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d3c4bdcc756e60b95365c66ff58844ce75d1c8f8 
>> ?
>
> Yes, although it has been supported for nearly two
> years, but there are still many dependencies
> against RHEL 9 kernel (5.14) codebase.
>
>>
>>> I think RHEL 9 is lacking of many features.
>>
>> Yes, but I'll try to argue for refresh for 9.6. Thanks!
>> (Just tried to cherry pick that one myself, some conflicts but looks 
>> tractable)
>
> Actually, the PR below has been delayed for
> months:
> https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9/-/merge_requests/4123 
>

Indeed, yes.


I deferred it because I thought back porting the idmap type changes that 
came after

5.14 was more important and the above MR was conflicting with them.

That was a large change and was difficult to get merged but it's done now.


>
> I think it's not quite easy to just cherry-pick
> random commits due to twisted codebase cleanups,
> rolling the codebase to upstream v6.4 is a good
> choise for RHEL 9 long term maintainence.

Yes, cherry-picking commits is often hard to do and error prone.


I can't remember now how far I went with the above MR but I'll review

that when I look at getting this into RHEL for Colin.

If I need help I'll certainly reach out here, thanks very much offering 
to help.


Ian