linux-kernel - Re: [PATCH] posix_acl.h: define missing ACL functions on non-posix-acl build

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Date:   Sun, 29 Nov 2020 18:00:59 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Sergey Senozhatsky <sergey.senozhatsky@...il.com>,
        Christoph Hellwig <hch@....de>,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Cc:     Namjae Jeon <linkinjeon@...nel.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] posix_acl.h: define missing ACL functions on
 non-posix-acl build

On 11/29/20 5:44 PM, Sergey Senozhatsky wrote:
> Some functions that are declared when CONFIG_POSIX_ACL is defined
> are not declared when CONFIG_POSIX_ACL is not defined. Add the
> missing ones:
>   set_posix_acl(), posix_acl_update_mode(), get_cached_acl(),
>   get_cached_acl_rcu(), set_cached_acl(), forget_cached_acl().
> 
> Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@...il.com>

Hi,

I can't find CONFIG_POSIX_ACL in the kernel source tree.
Should it be CONFIG_FS_POSIX_ACL ?

How did you test this?

> ---
>  include/linux/posix_acl.h | 33 +++++++++++++++++++++++++++++++++
>  1 file changed, 33 insertions(+)
> 
> diff --git a/include/linux/posix_acl.h b/include/linux/posix_acl.h
> index 90797f1b421d..f6d206359da5 100644
> --- a/include/linux/posix_acl.h
> +++ b/include/linux/posix_acl.h
> @@ -117,6 +117,39 @@ static inline int posix_acl_create(struct inode *inode, umode_t *mode,
>  static inline void forget_all_cached_acls(struct inode *inode)
>  {
>  }
> +
> +static inline int set_posix_acl(struct inode *inode, int type,
> +				struct posix_acl *acl)
> +{
> +	return 0;
> +}
> +
> +static inline int posix_acl_update_mode(struct inode *, umode_t *,
> +					struct posix_acl **)
> +{
> +	return 0;
> +}
> +
> +static inline struct posix_acl *get_cached_acl(struct inode *inode,
> +					       int type)
> +{
> +	return NULL;
> +}
> +
> +static inline struct posix_acl *get_cached_acl_rcu(struct inode *inode,
> +						   int type)
> +{
> +	return NULL;
> +}
> +
> +static inline void set_cached_acl(struct inode *inode, int type,
> +				  struct posix_acl *acl)
> +{
> +}
> +
> +static inline void forget_cached_acl(struct inode *inode, int type)
> +{
> +}
>  #endif /* CONFIG_FS_POSIX_ACL */
>  
>  struct posix_acl *get_acl(struct inode *inode, int type);
> 

thanks.
-- 
~Randy