From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Fri, 29 Jun 2012 15:25:07 +0000 (-0700)
Subject: rcu: Remove now-unused rcu_state fields
X-Git-Tag: next-20120907~29^2~12
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0d4ab7873644ce98694eb901c94ba2e3f3b8ae22;p=karo-tx-linux.git

rcu: Remove now-unused rcu_state fields

Moving the RCU grace-period processing to a kthread and adjusting the
tracing resulted in two of the rcu_state structure's fields being unused.
This commit therefore removes them.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 2d4cc1847fb9..8f0293ce1517 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -378,13 +378,6 @@ struct rcu_state {
 
 	u8	fqs_state ____cacheline_internodealigned_in_smp;
 						/* Force QS state. */
-	u8	fqs_active;			/* force_quiescent_state() */
-						/*  is running. */
-	u8	fqs_need_gp;			/* A CPU was prevented from */
-						/*  starting a new grace */
-						/*  period because */
-						/*  force_quiescent_state() */
-						/*  was running. */
 	u8	boost;				/* Subject to priority boost. */
 	unsigned long gpnum;			/* Current gp number. */
 	unsigned long completed;		/* # of last completed gp. */