Re: [PATCH 0/1] mm/memfd_luo: use KHOSER_PTR for serialized_data checks

[Mike Rapoport <rppt@kernel.org>]

Hi,

On Mon, Jun 15, 2026 at 01:05:04PM +0000, Tarun Sahu wrote:
> Use the KHOSER_PTR interface for serialized_data in memfd_luo to
> perform type-safe pointer conversions and checks.
> 
> I have tried to keep the changes minimal. So only changed
> the memfd_luo. Would love the suggestions for if we should be changing
> struct liveupdate_file_op_args like the following.
> 
> @@ -46,7 +47,7 @@ struct liveupdate_file_op_args {
>  	struct liveupdate_file_handler *handler;
>  	int retrieve_status;
>  	struct file *file;
> -	u64 serialized_data;
> +	DECLARE_KHOSER_PTR(serialized_data, void *);

Yes, this one please :)

>  	void *private_data;
>  };
> 
> Ofcourse, it will require change in liveupdate and luo_file.
> 
> Tarun Sahu (1):
>   mm/memfd_luo: use KHOSER_PTR for serialized_data checks
> 
>  mm/memfd_luo.c | 30 +++++++++++++++++++++---------
>  1 file changed, 21 insertions(+), 9 deletions(-)
> 
> 
> base-commit: 0e0611827f3349d0a2ac121c023a6d3260dcecdb
> -- 
> 2.54.0.1136.gdb2ca164c4-goog
> 

-- 
Sincerely yours,
Mike.