Re: [PATCH v2] fs: fsconfig: intercept non-new mount API in advance for FSCONFIG_CMD_CREATE_EXCL command

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On Wed 22-05-24 11:04:22, Hongbo Li wrote:
> fsconfig with FSCONFIG_CMD_CREATE_EXCL command requires the new mount api,
> here we should return -EOPNOTSUPP in advance to avoid extra procedure.
> 
> Signed-off-by: Hongbo Li <lihongbo22@xxxxxxxxxx>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack@xxxxxxx>

								Honza

> ---
> v2:
>   - Fix misspelling and change the target branch.
> 
> v1: https://lore.kernel.org/all/20240511062147.3312801-1-lihongbo22@xxxxxxxxxx/T/
> ---
>  fs/fsopen.c | 5 +----
>  1 file changed, 1 insertion(+), 4 deletions(-)
> 
> diff --git a/fs/fsopen.c b/fs/fsopen.c
> index 6593ae518115..18fe979da7e2 100644
> --- a/fs/fsopen.c
> +++ b/fs/fsopen.c
> @@ -220,10 +220,6 @@ static int vfs_cmd_create(struct fs_context *fc, bool exclusive)
>  	if (!mount_capable(fc))
>  		return -EPERM;
>  
> -	/* require the new mount api */
> -	if (exclusive && fc->ops == &legacy_fs_context_ops)
> -		return -EOPNOTSUPP;
> -
>  	fc->phase = FS_CONTEXT_CREATING;
>  	fc->exclusive = exclusive;
>  
> @@ -411,6 +407,7 @@ SYSCALL_DEFINE5(fsconfig,
>  		case FSCONFIG_SET_PATH:
>  		case FSCONFIG_SET_PATH_EMPTY:
>  		case FSCONFIG_SET_FD:
> +		case FSCONFIG_CMD_CREATE_EXCL:
>  			ret = -EOPNOTSUPP;
>  			goto out_f;
>  		}
> -- 
> 2.34.1
> 
-- 
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR




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