Hiii,
I was trying to add extended attributes to a file in Lustre file system using the following methods but could not succeed, as a normal user.

Method #1
The below code fragment run from lustre client always shows "setxattr: not supported error" and asks me to be a root and modify the /etc/fstab file

                name = "user.test_name";
                //value = (void) 0;
                value = 0;
               if (setxattr(argv[1],name,&value,sizeof(value), XATTR_CREATE)==-1){
                        if(errno==ENOTSUP)
                                perror("setxattr: not supported error");
                        exit(EXIT_FAILURE);
                }

Method #2
I tried using the below function (which does the same action as above), but lustre says "client code should not depend on md_object.h".

static int mo_xattr_set	(	const struct lu_env *	env,
		struct md_object *	m,
		const struct lu_buf *	buf,
		const char *	name,
		int	flags
	)

Is there any way to modify the extended attribute of lustre file as a normal user? Any help or guidance or tip would be appreciated.

-- 
Thanks & Regards,
Linda J