NFS: Fix the type of struct nfs_fattr->mode

There is no point in using anything other than umode_t, since we copy the
content pretty much directly into inode->i_mode.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

5 files changed, 38 insertions, 47 deletions

diff --git a/fs/nfs/getroot.c b/fs/nfs/getroot.c
index b7c9b2df1f29..46177cb87064 100644
--- a/fs/nfs/getroot.c
+++ b/fs/nfs/getroot.c
@@ -156,7 +156,7 @@ int nfs4_path_walk(struct nfs_server *server,
                 return ret;
         }
 
-        if (fattr.type != NFDIR) {
+        if (!S_ISDIR(fattr.mode)) {
                 printk(KERN_ERR "nfs4_get_root:"
                        " getroot encountered non-directory\n");
                 return -ENOTDIR;
@@ -213,7 +213,7 @@ eat_dot_dir:
                 return ret;
         }
 
-        if (fattr.type != NFDIR) {
+        if (!S_ISDIR(fattr.mode)) {
                 printk(KERN_ERR "nfs4_get_root:"
                        " lookupfh encountered non-directory\n");
                 return -ENOTDIR;
diff --git a/fs/nfs/nfs2xdr.c b/fs/nfs/nfs2xdr.c
index bea99992c302..c862c9340f9a 100644
--- a/fs/nfs/nfs2xdr.c
+++ b/fs/nfs/nfs2xdr.c
@@ -120,8 +120,8 @@ xdr_decode_time(__be32 *p, struct timespec *timep)
 static __be32 *
 xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr)
 {
-        u32 rdev;
-        fattr->type = (enum nfs_ftype) ntohl(*p++);
+        u32 rdev, type;
+        type = ntohl(*p++);
         fattr->mode = ntohl(*p++);
         fattr->nlink = ntohl(*p++);
         fattr->uid = ntohl(*p++);
@@ -138,8 +138,7 @@ xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr)
         p = xdr_decode_time(p, &fattr->ctime);
         fattr->valid |= NFS_ATTR_FATTR_V2;
         fattr->rdev = new_decode_dev(rdev);
-        if (fattr->type == NFCHR && rdev == NFS2_FIFO_DEV) {
-                fattr->type = NFFIFO;
+        if (type == NFCHR && rdev == NFS2_FIFO_DEV) {
                 fattr->mode = (fattr->mode & ~S_IFMT) | S_IFIFO;
                 fattr->rdev = 0;
         }
diff --git a/fs/nfs/nfs3xdr.c b/fs/nfs/nfs3xdr.c
index c0f7d02aced9..e6a1932c7110 100644
--- a/fs/nfs/nfs3xdr.c
+++ b/fs/nfs/nfs3xdr.c
@@ -91,19 +91,15 @@
 /*
  * Map file type to S_IFMT bits
  */
-static struct {
-        unsigned int    mode;
-        unsigned int    nfs2type;
-} nfs_type2fmt[] = {
-      { 0,              NFNON   },
-      { S_IFREG,        NFREG   },
-      { S_IFDIR,        NFDIR   },
-      { S_IFBLK,        NFBLK   },
-      { S_IFCHR,        NFCHR   },
-      { S_IFLNK,        NFLNK   },
-      { S_IFSOCK,       NFSOCK  },
-      { S_IFIFO,        NFFIFO  },
-      { 0,              NFBAD   }
+static const umode_t nfs_type2fmt[] = {
+        [NF3BAD] = 0,
+        [NF3REG] = S_IFREG,
+        [NF3DIR] = S_IFDIR,
+        [NF3BLK] = S_IFBLK,
+        [NF3CHR] = S_IFCHR,
+        [NF3LNK] = S_IFLNK,
+        [NF3SOCK] = S_IFSOCK,
+        [NF3FIFO] = S_IFIFO,
 };
 
 /*
@@ -148,13 +144,12 @@ static __be32 *
 xdr_decode_fattr(__be32 *p, struct nfs_fattr *fattr)
 {
         unsigned int    type, major, minor;
-        int             fmode;
+        umode_t         fmode;
 
         type = ntohl(*p++);
-        if (type >= NF3BAD)
-                type = NF3BAD;
-        fmode = nfs_type2fmt[type].mode;
-        fattr->type = nfs_type2fmt[type].nfs2type;
+        if (type > NF3FIFO)
+                type = NF3NON;
+        fmode = nfs_type2fmt[type];
         fattr->mode = (ntohl(*p++) & ~S_IFMT) | fmode;
         fattr->nlink = ntohl(*p++);
         fattr->uid = ntohl(*p++);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 9f1df8361974..c1906d2a226b 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -522,20 +522,17 @@ static int nfs4_stat_to_errno(int);
                                  decode_lookup_maxsz + \
                                  decode_fs_locations_maxsz)
 
-static struct {
-        unsigned int    mode;
-        unsigned int    nfs2type;
-} nfs_type2fmt[] = {
-        { 0,            NFNON        },
-        { S_IFREG,      NFREG        },
-        { S_IFDIR,      NFDIR        },
-        { S_IFBLK,      NFBLK        },
-        { S_IFCHR,      NFCHR        },
-        { S_IFLNK,      NFLNK        },
-        { S_IFSOCK,     NFSOCK       },
-        { S_IFIFO,      NFFIFO       },
-        { 0,            NFNON        },
-        { 0,            NFNON        },
+static const umode_t nfs_type2fmt[] = {
+        [NF4BAD] = 0,
+        [NF4REG] = S_IFREG,
+        [NF4DIR] = S_IFDIR,
+        [NF4BLK] = S_IFBLK,
+        [NF4CHR] = S_IFCHR,
+        [NF4LNK] = S_IFLNK,
+        [NF4SOCK] = S_IFSOCK,
+        [NF4FIFO] = S_IFIFO,
+        [NF4ATTRDIR] = 0,
+        [NF4NAMEDATTR] = 0,
 };
 
 struct compound_hdr {
@@ -2173,7 +2170,7 @@ static int decode_attr_type(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *
                 }
                 bitmap[0] &= ~FATTR4_WORD0_TYPE;
         }
-        dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type].nfs2type);
+        dprintk("%s: type=0%o\n", __func__, nfs_type2fmt[*type]);
         return 0;
 }
 
@@ -2580,8 +2577,9 @@ static int decode_attr_maxwrite(struct xdr_stream *xdr, uint32_t *bitmap, uint32
         return status;
 }
 
-static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *mode)
+static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, umode_t *mode)
 {
+        uint32_t tmp;
         __be32 *p;
 
         *mode = 0;
@@ -2589,8 +2587,8 @@ static int decode_attr_mode(struct xdr_stream *xdr, uint32_t *bitmap, uint32_t *
                 return -EIO;
         if (likely(bitmap[1] & FATTR4_WORD1_MODE)) {
                 READ_BUF(4);
-                READ32(*mode);
-                *mode &= ~S_IFMT;
+                READ32(tmp);
+                *mode = tmp & ~S_IFMT;
                 bitmap[1] &= ~FATTR4_WORD1_MODE;
         }
         dprintk("%s: file mode=0%o\n", __func__, (unsigned int)*mode);
@@ -2994,7 +2992,8 @@ static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, cons
         uint32_t attrlen,
                  bitmap[2] = {0},
                  type;
-        int status, fmode = 0;
+        int status;
+        umode_t fmode = 0;
         uint64_t fileid;
 
         if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
@@ -3008,8 +3007,7 @@ static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr, cons
 
         if ((status = decode_attr_type(xdr, bitmap, &type)) != 0)
                 goto xdr_error;
-        fattr->type = nfs_type2fmt[type].nfs2type;
-        fattr->mode = nfs_type2fmt[type].mode;
+        fattr->mode = nfs_type2fmt[type];
 
         if ((status = decode_attr_change(xdr, bitmap, &fattr->change_attr)) != 0)
                 goto xdr_error;
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 6013acb0131f..0691b9c188d9 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -28,8 +28,7 @@ static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid
 
 struct nfs_fattr {
         unsigned int            valid;          /* which fields are valid */
-        enum nfs_ftype          type;           /* always use NFSv2 types */
-        __u32                   mode;
+        umode_t                 mode;
         __u32                   nlink;
         __u32                   uid;
         __u32                   gid;