Commit 
baa3a2a0d24ebcf1c451bec8e5bee3d3467f4cbb, by removing initialization
of the ctl_name field, broke this conditional, preventing the display of
rpc_tasks that you previously got when turning on rpc debugging.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
                        left--, s++;
                *(unsigned int *) table->data = value;
                /* Display the RPC tasks on writing to rpc_debug */
-               if (table->ctl_name == CTL_RPCDEBUG) {
+               if (strcmp(table->procname, "rpc_debug") == 0)
                        rpc_show_tasks();
-               }
        } else {
                if (!access_ok(VERIFY_WRITE, buffer, left))
                        return -EFAULT;