On Mon 23-06-25 11:01:29, Christian Brauner wrote:
> Allow a filesystem to indicate that it supports encoding autonomous file
> handles that can be decoded without having to pass a filesystem for the
> filesystem. In other words, the file handle uniquely identifies the
> filesystem.
>
> Signed-off-by: Christian Brauner <brauner@xxxxxxxxxx>
...
> diff --git a/include/linux/exportfs.h b/include/linux/exportfs.h
> index 45b38a29643f..959a1f7d46d0 100644
> --- a/include/linux/exportfs.h
> +++ b/include/linux/exportfs.h
> @@ -194,7 +194,8 @@ struct handle_to_path_ctx {
> /* Flags supported in encoded handle_type that is exported to user */
> #define FILEID_IS_CONNECTABLE 0x10000
> #define FILEID_IS_DIR 0x20000
> -#define FILEID_VALID_USER_FLAGS (FILEID_IS_CONNECTABLE | FILEID_IS_DIR)
> +#define FILEID_IS_AUTONOMOUS 0x40000
> +#define FILEID_VALID_USER_FLAGS (FILEID_IS_CONNECTABLE | FILEID_IS_DIR | FILEID_IS_AUTONOMOUS)
Is there a reason for FILEID_IS_AUTONOMOUS? As far as I understand the
fh_type has to encode filesystem type anyway so that you know which root to
pick. So FILEID_IS_AUTONOMOUS is just duplicating the information? But
maybe there's some benefit in having FILEID_IS_AUTONOMOUS which I'm
missing...
Honza
--
Jan Kara <jack@xxxxxxxx>
SUSE Labs, CR
