Re: [PATCH V3 1/2] mm: compaction: move compact_memory sysctl to its own file

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On 3/9/23 04:44, ye.xingchen@xxxxxxxxxx wrote:
> From: Minghao Chi <chi.minghao@xxxxxxxxxx>
> 
> The compact_memory is part of compaction, move it to its own file.
> 
> Link: https://lore.kernel.org/all/ZAJwoXJCzfk1WIBx@xxxxxxxxxxxxxxxxxxxxxx/
> Signed-off-by: Minghao Chi <chi.minghao@xxxxxxxxxx>
> Signed-off-by: Ye Xingchen <ye.xingchen@xxxxxxxxxx>
> ---
>  kernel/sysctl.c |  7 -------
>  mm/compaction.c | 15 +++++++++++++++
>  2 files changed, 15 insertions(+), 7 deletions(-)
> 
> diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> index c14552a662ae..f574f9985df4 100644
> --- a/kernel/sysctl.c
> +++ b/kernel/sysctl.c
> @@ -2190,13 +2190,6 @@ static struct ctl_table vm_table[] = {
>  		.extra2		= SYSCTL_FOUR,
>  	},
>  #ifdef CONFIG_COMPACTION
> -	{
> -		.procname	= "compact_memory",
> -		.data		= NULL,
> -		.maxlen		= sizeof(int),
> -		.mode		= 0200,
> -		.proc_handler	= sysctl_compaction_handler,
> -	},
>  	{
>  		.procname	= "compaction_proactiveness",
>  		.data		= &sysctl_compaction_proactiveness,

There's also this one, and two more, please move all of them at once?

> diff --git a/mm/compaction.c b/mm/compaction.c
> index 5a9501e0ae01..acbda28c11f4 100644
> --- a/mm/compaction.c
> +++ b/mm/compaction.c
> @@ -2763,6 +2763,18 @@ int compaction_proactiveness_sysctl_handler(struct ctl_table *table, int write,
>  	return 0;
>  }
> 
> +#ifdef CONFIG_SYSCTL
> +static struct ctl_table vm_compact_memory[] = {
> +	{
> +		.procname	= "compact_memory",
> +		.data		= NULL,
> +		.maxlen		= sizeof(int),
> +		.mode		= 0200,
> +		.proc_handler	= sysctl_compaction_handler,
> +	},
> +	{ }
> +};
> +#endif
>  /*
>   * This is the entry point for compacting all nodes via
>   * /proc/sys/vm/compact_memory
> @@ -3078,6 +3090,9 @@ static int __init kcompactd_init(void)
> 
>  	for_each_node_state(nid, N_MEMORY)
>  		kcompactd_run(nid);
> +#ifdef CONFIG_SYSCTL
> +	register_sysctl_init("vm", vm_compact_memory);
> +#endif
>  	return 0;
>  }
>  subsys_initcall(kcompactd_init)




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