From: Namjae Jeon <namjae.j...@samsung.com>

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.j...@samsung.com>
Signed-off-by: Vivek Trivedi <t.vi...@samsung.com>
Acked-by: Steven Whitehouse <swhit...@redhat.com>
Acked-by: Sage Weil <s...@inktank.com>
---
 fs/btrfs/export.c   |    4 ++--
 fs/ceph/export.c    |    4 ++--
 fs/fuse/inode.c     |    2 +-
 fs/gfs2/export.c    |    4 ++--
 fs/isofs/export.c   |    4 ++--
 fs/nilfs2/namei.c   |    4 ++--
 fs/ocfs2/export.c   |    4 ++--
 fs/reiserfs/inode.c |    4 ++--
 fs/udf/namei.c      |    4 ++--
 fs/xfs/xfs_export.c |    4 ++--
 mm/cleancache.c     |    2 +-
 mm/shmem.c          |    2 +-
 12 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index 614f34a..81ee29e 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -22,10 +22,10 @@ static int btrfs_encode_fh(struct inode *inode, u32 *fh, 
int *max_len,
 
        if (parent && (len < BTRFS_FID_SIZE_CONNECTABLE)) {
                *max_len = BTRFS_FID_SIZE_CONNECTABLE;
-               return 255;
+               return FILEID_INVALID;
        } else if (len < BTRFS_FID_SIZE_NON_CONNECTABLE) {
                *max_len = BTRFS_FID_SIZE_NON_CONNECTABLE;
-               return 255;
+               return FILEID_INVALID;
        }
 
        len  = BTRFS_FID_SIZE_NON_CONNECTABLE;
diff --git a/fs/ceph/export.c b/fs/ceph/export.c
index ca3ab3f..16796be 100644
--- a/fs/ceph/export.c
+++ b/fs/ceph/export.c
@@ -81,7 +81,7 @@ static int ceph_encode_fh(struct inode *inode, u32 *rawfh, 
int *max_len,
                if (parent_inode) {
                        /* nfsd wants connectable */
                        *max_len = connected_handle_length;
-                       type = 255;
+                       type = FILEID_INVALID;
                } else {
                        dout("encode_fh %p\n", dentry);
                        fh->ino = ceph_ino(inode);
@@ -90,7 +90,7 @@ static int ceph_encode_fh(struct inode *inode, u32 *rawfh, 
int *max_len,
                }
        } else {
                *max_len = handle_length;
-               type = 255;
+               type = FILEID_INVALID;
        }
        if (dentry)
                dput(dentry);
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 9876a87..973e8f0 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -679,7 +679,7 @@ static int fuse_encode_fh(struct inode *inode, u32 *fh, int 
*max_len,
 
        if (*max_len < len) {
                *max_len = len;
-               return  255;
+               return  FILEID_INVALID;
        }
 
        nodeid = get_fuse_inode(inode)->nodeid;
diff --git a/fs/gfs2/export.c b/fs/gfs2/export.c
index 4767774..9973df4 100644
--- a/fs/gfs2/export.c
+++ b/fs/gfs2/export.c
@@ -37,10 +37,10 @@ static int gfs2_encode_fh(struct inode *inode, __u32 *p, 
int *len,
 
        if (parent && (*len < GFS2_LARGE_FH_SIZE)) {
                *len = GFS2_LARGE_FH_SIZE;
-               return 255;
+               return FILEID_INVALID;
        } else if (*len < GFS2_SMALL_FH_SIZE) {
                *len = GFS2_SMALL_FH_SIZE;
-               return 255;
+               return FILEID_INVALID;
        }
 
        fh[0] = cpu_to_be32(ip->i_no_formal_ino >> 32);
diff --git a/fs/isofs/export.c b/fs/isofs/export.c
index 2b4f235..12088d8 100644
--- a/fs/isofs/export.c
+++ b/fs/isofs/export.c
@@ -125,10 +125,10 @@ isofs_export_encode_fh(struct inode *inode,
         */
        if (parent && (len < 5)) {
                *max_len = 5;
-               return 255;
+               return FILEID_INVALID;
        } else if (len < 3) {
                *max_len = 3;
-               return 255;
+               return FILEID_INVALID;
        }
 
        len = 3;
diff --git a/fs/nilfs2/namei.c b/fs/nilfs2/namei.c
index 1d0c0b8..9de78f0 100644
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -517,11 +517,11 @@ static int nilfs_encode_fh(struct inode *inode, __u32 
*fh, int *lenp,
 
        if (parent && *lenp < NILFS_FID_SIZE_CONNECTABLE) {
                *lenp = NILFS_FID_SIZE_CONNECTABLE;
-               return 255;
+               return FILEID_INVALID;
        }
        if (*lenp < NILFS_FID_SIZE_NON_CONNECTABLE) {
                *lenp = NILFS_FID_SIZE_NON_CONNECTABLE;
-               return 255;
+               return FILEID_INVALID;
        }
 
        fid->cno = root->cno;
diff --git a/fs/ocfs2/export.c b/fs/ocfs2/export.c
index 322216a..2965116 100644
--- a/fs/ocfs2/export.c
+++ b/fs/ocfs2/export.c
@@ -195,11 +195,11 @@ static int ocfs2_encode_fh(struct inode *inode, u32 
*fh_in, int *max_len,
 
        if (parent && (len < 6)) {
                *max_len = 6;
-               type = 255;
+               type = FILEID_INVALID;
                goto bail;
        } else if (len < 3) {
                *max_len = 3;
-               type = 255;
+               type = FILEID_INVALID;
                goto bail;
        }
 
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 30195bc..77d6d47 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1604,10 +1604,10 @@ int reiserfs_encode_fh(struct inode *inode, __u32 * 
data, int *lenp,
 
        if (parent && (maxlen < 5)) {
                *lenp = 5;
-               return 255;
+               return FILEID_INVALID;
        } else if (maxlen < 3) {
                *lenp = 3;
-               return 255;
+               return FILEID_INVALID;
        }
 
        data[0] = inode->i_ino;
diff --git a/fs/udf/namei.c b/fs/udf/namei.c
index 95fee27..102c072 100644
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
@@ -1270,10 +1270,10 @@ static int udf_encode_fh(struct inode *inode, __u32 
*fh, int *lenp,
 
        if (parent && (len < 5)) {
                *lenp = 5;
-               return 255;
+               return FILEID_INVALID;
        } else if (len < 3) {
                *lenp = 3;
-               return 255;
+               return FILEID_INVALID;
        }
 
        *lenp = 3;
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index a836118..3391800 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -48,7 +48,7 @@ static int xfs_fileid_length(int fileid_type)
        case FILEID_INO32_GEN_PARENT | XFS_FILEID_TYPE_64FLAG:
                return 6;
        }
-       return 255; /* invalid */
+       return FILEID_INVALID;
 }
 
 STATIC int
@@ -90,7 +90,7 @@ xfs_fs_encode_fh(
        len = xfs_fileid_length(fileid_type);
        if (*max_len < len) {
                *max_len = len;
-               return 255;
+               return FILEID_INVALID;
        }
        *max_len = len;
 
diff --git a/mm/cleancache.c b/mm/cleancache.c
index 32e6f41..d76ba74 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 a43ae7f..585b007 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)) {
-- 
1.7.9.5

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