[PATCH 07/16] fs: add inode operations to get/set/remove fscaps

[Christian Brauner]

On Wed, Nov 29, 2023 at 03:50:25PM -0600, Seth Forshee (DigitalOcean) wrote:
> Add inode operations for getting, setting and removing filesystem
> capabilities rather than passing around raw xattr data. This provides
> better type safety for ids contained within xattrs.
> 
> Signed-off-by: Seth Forshee (DigitalOcean) <sforshee at kernel.org>
> ---
>  include/linux/fs.h | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/include/linux/fs.h b/include/linux/fs.h
> index 98b7a7a8c42e..a0a77f67b999 100644
> --- a/include/linux/fs.h
> +++ b/include/linux/fs.h
> @@ -2002,6 +2002,11 @@ struct inode_operations {
>  				     int);
>  	int (*set_acl)(struct mnt_idmap *, struct dentry *,
>  		       struct posix_acl *, int);
> +	int (*get_fscaps)(struct mnt_idmap *, struct dentry *,
> +			  struct vfs_caps *);
> +	int (*set_fscaps)(struct mnt_idmap *, struct dentry *,
> +			  const struct vfs_caps *, int flags);

If it's really a flags argument, then unsigned int, please,
Reviewed-by: Christian Brauner <brauner at kernel.org>

> +	int (*remove_fscaps)(struct mnt_idmap *, struct dentry *);
>  	int (*fileattr_set)(struct mnt_idmap *idmap,
>  			    struct dentry *dentry, struct fileattr *fa);
>  	int (*fileattr_get)(struct dentry *dentry, struct fileattr *fa);

Ofc we managed to add get/set_foo() and bar_get/set().