fs: encode_fh: return FILEID_INVALID if invalid fid_type

This patch is a follow up on below patch:

[PATCH] exportfs: add FILEID_INVALID to indicate invalid fid_type
commit: 216b6cbdcbd86b1db0754d58886b466ae31f5a63

Signed-off-by: Namjae Jeon <[email protected]>
Signed-off-by: Vivek Trivedi <[email protected]>
Acked-by: Steven Whitehouse <[email protected]>
Acked-by: Sage Weil <[email protected]>
Signed-off-by: Al Viro <[email protected]>
12 files changed