Re: [v3 1/3] mm/damon/sysfs: fix param_ctx leak on damon_sysfs_new_test_ctx() failure

SeongJae Park
2026-03-24T14:15:44Z

On Tue, 24 Mar 2026 07:06:25 +0000 Josh Law <objecting@objecting.org> wrote:

>
>
> On 24 March 2026 00:14:59 GMT, SeongJae Park <sj@kernel.org> wrote:
> >On Mon, 23 Mar 2026 16:48:19 +0000 Josh Law <objecting@objecting.org> wrote:
> >[...]
> >> Also, unconnected to our topic!
> >>
> >>
> >> I've tried to backport Damon to 4.19 (for a personal android thing, and failed! Of course)
> >>
> >> Can I have a bit of help if that's fine with you? The tree is based on GitHub a bit
> >
> >Sure, I will be happy to help as much as I can without burning myself ;)
> >
> >Seems [1] Alma Linux has backported DAMON on their 4.18 kernel. Maybe you can
> >try their port first?
> >
> >Also, what is the oldest kernel that you have to use? As newer it is, the
> >backporting will be easier. When I was in AWS, I backported DAMON of v6.7 on
> >the v5.10 based Amazon Linux kernel, and the source is available on GitHub. So
> >if you can use 5.10 based kernel, using that could also be a good option.
> >
> >[1] https://oracle.github.io/kconfigs/?config=UTS_RELEASE&config=DAMON
> >
> >
> >Thanks,
> >SJ
> >
> >[...]
>
>
>
> well android likes using old kernels for some reasons, especially LTS, so 4.19..

Well, but the long term support of 4.19 has dead a few years ago. The oldest
LTS kernel of today is 5.10 [1]. I understand some vendors might still use
4.19 kernel, though. Anyway, let me know if there is anything that I can help.
I will try to help.

[1] https://www.kernel.org/category/releases.html

Thanks,
SJ …