/*
* Read-Copy Update mechanism for mutual exclusion, realtime implementation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Copyright IBM Corporation, 2006
*
* Authors: Paul E. McKenney <paulmck@us.ibm.com>
* With thanks to Esben Nielsen, Bill Huey, and Ingo Molnar
* for pushing me away from locks and towards counters, and
* to Suparna Bhattacharya for pushing me completely away
* from atomic instructions on the read side.
*
* - Added handling of Dynamic Ticks
* Copyright 2007 - Paul E. Mckenney <paulmck@us.ibm.com>
* - Steven Rostedt <srostedt@redhat.com>
*
* Papers: http://www.rdrop.com/users/paulmck/RCU
*
* Design Document: http://lwn.net/Articles/253651/
*
* For detailed explanation of Read-Copy Update mechanism see -
* Documentation/RCU/ *.txt
*
*/
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/smp.h>
#include <linux/rcupdate.h>
#include <linux/interrupt.h>
#include <linux/sched.
