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 <namjae.jeon@samsung.com>
Signed-off-by: Vivek Trivedi <t.vivek@samsung.com>
Acked-by: Steven Whitehouse <swhiteho@redhat.com>
Acked-by: Sage Weil <sage@inktank.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2 files changed, 2 insertions, 2 deletions

diff --git a/mm/cleancache.c b/mm/cleancache.c
index 32e6f4136fa2..d76ba74be2d0 100644
--- a/mm/cleancache.c
+++ b/mm/cleancache.c
@@ -89,7 +89,7 @@ static int cleancache_get_key(struct inode *inode,
                 fhfn = sb->s_export_op->encode_fh;
                 if  (fhfn) {
                         len = (*fhfn)(inode, &key->u.fh[0], &maxlen, NULL);
-                        if (len <= 0 || len == 255)
+                        if (len <= FILEID_ROOT || len == FILEID_INVALID)
                                 return -1;
                         if (maxlen > CLEANCACHE_KEY_MAX)
                                 return -1;
diff --git a/mm/shmem.c b/mm/shmem.c
index 25cd688bd208..320ffc1d1d1e 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -2351,7 +2351,7 @@ static int shmem_encode_fh(struct inode *inode, __u32 *fh, int *len,
 {
         if (*len < 3) {
                 *len = 3;
-                return 255;
+                return FILEID_INVALID;
         }
 
         if (inode_unhashed(inode)) {