Re: [RFC PATCH -next 11/16] mm/damon: add addr_unit for DAMON_RECLAIM and LRU_SORT

[Quanmin Yan]

在 2025/8/14 0:36, SeongJae Park 写道:
> On Wed, 13 Aug 2025 13:07:01 +0800 Quanmin Yan <yanquanmin1@xxxxxxxxxx> wrote:
>
> > In module DAMON_RECLAIM and DAMON_LRU_SORT, the damon_ctx is
> > independent of the core, necessitating dedicated addr_unit
> > integration for these features.
> > Additionally, if the input monitor_region_start and monitor_region_end
> > are both 0 while addr_unit is set to a non-zero valuethe default
> > system RAM range should be divided by addr_unit.
> Do you plan to, and need to use DAMON_RECLAIM and DAMON_LRU_SORT on LPAE-ARM32
> environments?  Can't you use DAMON sysfs interface instead?  If need to use the
> modules, this change looks good to me in high level.  But if not, I'd like to
> skip this change, and wait until someone requests it.
>
> I'll review the code change in depth after the above question is answered.
Hi SJ,

Yes, we need to use these modules in an LPAE-ARM32 environment. The modular
approach often provides more flexibility in our workflow, so we would greatly
appreciate it if you could take some time to review the code!🙂

Thanks,
Quanmin Yan

> Thanks,
> SJ
>
> [...]