linux-kernel - [PATCH tip/core/rcu 14/23] rcu: Remove now-unused rcu

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Message-Id: <1346350718-30937-14-git-send-email-paulmck@linux.vnet.ibm.com>
Date:	Thu, 30 Aug 2012 11:18:29 -0700
From:	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, laijs@...fujitsu.com, dipankar@...ibm.com,
	akpm@...ux-foundation.org, mathieu.desnoyers@...ymtl.ca,
	josh@...htriplett.org, niv@...ibm.com, tglx@...utronix.de,
	peterz@...radead.org, rostedt@...dmis.org, Valdis.Kletnieks@...edu,
	dhowells@...hat.com, eric.dumazet@...il.com, darren@...art.com,
	fweisbec@...il.com, sbw@....edu, patches@...aro.org,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
Subject: [PATCH tip/core/rcu 14/23] rcu: Remove now-unused rcu_state fields

From: "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>

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@...ux.vnet.ibm.com>
---
 kernel/rcutree.h |    7 -------
 1 files changed, 0 insertions(+), 7 deletions(-)

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 2d4cc18..8f0293c 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. */
-- 
1.7.8

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