NFSD: File name length signage in nfsd request argument structures

Clean up: For consistency, store the length of file name strings in nfsd
argument structures as unsigned integers.  This matches the XDR routines
and client argument structures for the same operation types.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-By: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
diff --git a/include/linux/nfsd/xdr3.h b/include/linux/nfsd/xdr3.h
index 89d9d60..6fdb958 100644
--- a/include/linux/nfsd/xdr3.h
+++ b/include/linux/nfsd/xdr3.h
@@ -21,7 +21,7 @@
 struct nfsd3_diropargs {
 	struct svc_fh		fh;
 	char *			name;
-	int			len;
+	unsigned int		len;
 };
 
 struct nfsd3_accessargs {
@@ -48,7 +48,7 @@
 struct nfsd3_createargs {
 	struct svc_fh		fh;
 	char *			name;
-	int			len;
+	unsigned int		len;
 	int			createmode;
 	struct iattr		attrs;
 	__be32 *		verf;
@@ -57,7 +57,7 @@
 struct nfsd3_mknodargs {
 	struct svc_fh		fh;
 	char *			name;
-	int			len;
+	unsigned int		len;
 	__u32			ftype;
 	__u32			major, minor;
 	struct iattr		attrs;
@@ -66,10 +66,10 @@
 struct nfsd3_renameargs {
 	struct svc_fh		ffh;
 	char *			fname;
-	int			flen;
+	unsigned int		flen;
 	struct svc_fh		tfh;
 	char *			tname;
-	int			tlen;
+	unsigned int		tlen;
 };
 
 struct nfsd3_readlinkargs {
@@ -81,13 +81,13 @@
 	struct svc_fh		ffh;
 	struct svc_fh		tfh;
 	char *			tname;
-	int			tlen;
+	unsigned int		tlen;
 };
 
 struct nfsd3_symlinkargs {
 	struct svc_fh		ffh;
 	char *			fname;
-	int			flen;
+	unsigned int		flen;
 	char *			tname;
 	int			tlen;
 	struct iattr		attrs;