[PATCH] kNFSd: Use correct value for max size for readlink response.

Symlinks in NFSv3 can be upto 1024 bytes, not 256 like nfsv2.

fs/nfsd/nfs3proc.c

@@ -670,7 +670,7 @@ struct svc_procedure		nfsd_procedures3[22] = {
   PROC(setattr,  sattr,		wccstat,	fhandle,  RC_REPLBUFF, ST+WC),
   PROC(lookup,	 dirop,		dirop,		fhandle2, RC_NOCACHE, ST+FH+pAT+pAT),
   PROC(access,	 access,	access,		fhandle,  RC_NOCACHE, ST+pAT+1),
-  PROC(readlink, fhandle,	readlink,	fhandle,  RC_NOCACHE, ST+pAT+1+256),
+  PROC(readlink, fhandle,	readlink,	fhandle,  RC_NOCACHE, ST+pAT+1+NFS3_MAXPATHLEN/4),
   PROC(read,	 read,		read,		fhandle,  RC_NOCACHE, ST+pAT+4+NFSSVC_MAXBLKSIZE),
   PROC(write,	 write,		write,		fhandle,  RC_REPLBUFF, ST+WC+4),
   PROC(create,	 create,	create,		fhandle2, RC_REPLBUFF, ST+(1+FH+pAT)+WC),

fs/nfsd/nfsproc.c

@@ -545,7 +545,7 @@ struct svc_procedure		nfsd_procedures2[18] = {
   PROC(setattr,  sattrargs,	attrstat,	fhandle,	RC_REPLBUFF, ST+AT),
   PROC(none,	 void,		void,		none,		RC_NOCACHE, ST),
   PROC(lookup,	 diropargs,	diropres,	fhandle,	RC_NOCACHE, ST+FH+AT),
-  PROC(readlink, fhandle,	readlinkres,	none,		RC_NOCACHE, ST+1+256),
+  PROC(readlink, fhandle,	readlinkres,	none,		RC_NOCACHE, ST+1+NFS_MAXPATHLEN/4),
   PROC(read,	 readargs,	readres,	fhandle,	RC_NOCACHE, ST+AT+1+NFSSVC_MAXBLKSIZE),
   PROC(none,	 void,		void,		none,		RC_NOCACHE, ST),
   PROC(write,	 writeargs,	attrstat,	fhandle,	RC_REPLBUFF, ST+AT),