Re: [PATCH RFC -next 1/7] kernfs: export pr_cont_kernfs_path()

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On Thu, Jun 13, 2024 at 09:49:31AM +0800, Yu Kuai wrote:
> From: Yu Kuai <yukuai3@xxxxxxxxxx>
> 
> This helper is used in iocost, prepare to build iocost as kernel module.
> 
> Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
> ---
>  fs/kernfs/dir.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/fs/kernfs/dir.c b/fs/kernfs/dir.c
> index 458519e416fe..84ad163a4281 100644
> --- a/fs/kernfs/dir.c
> +++ b/fs/kernfs/dir.c
> @@ -279,6 +279,7 @@ void pr_cont_kernfs_path(struct kernfs_node *kn)
>  out:
>  	spin_unlock_irqrestore(&kernfs_pr_cont_lock, flags);
>  }
> +EXPORT_SYMBOL_GPL(pr_cont_kernfs_path);

This isn't the helper that needs to be exported, it's a include wrapper
that is using this for cgroups.  Please document this much better and
perhaps, just fix up the cgroups code instead?

thanks,

greg k-h




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