Re: [PATCH 2/3] mm/lru_gen: add configuration option to select debugfs/procfs for lru_gen

[Randy Dunlap]

On 11/27/25 6:53 PM, Zicheng Wang wrote:
> Signed-off-by: Zicheng Wang <wangzicheng@xxxxxxxxx>
> ---
>  mm/Kconfig | 10 ++++++++++
>  1 file changed, 10 insertions(+)
> 
> diff --git a/mm/Kconfig b/mm/Kconfig
> index e443fe8cd..be7efa794 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -1325,6 +1325,16 @@ config LRU_GEN_STATS
>  config LRU_GEN_WALKS_MMU
>  	def_bool y
>  	depends on LRU_GEN && ARCH_HAS_HW_PTE_YOUNG
> +
> +config LRU_GEN_PROCFS_CTRL
> +	bool "Move lru_gen files from debugfs to procfs"
> +	depends on LRU_GEN && PROC_FS
> +	help
> +	  Move lru_gen management from debugfs to procfs (/proc/lru_gen).
> +	  This production-ready feature provides critical memory reclaim
> +	  prediction and control. It is no longer experimental.
> +	  The migration ensures availability in commercial products where
> +	  debugfs may be disabled.

A. missing patch description
B. The help message above sounds like a patch description.

If someone does not enable this kconfig option, what happens?
a. lru_gen files stay in debugfs
b. lru_gen files are not present
c. something else. If so, what?


-- 
~Randy