[PATCH tip/core/rcu 03/48] rcu: make dead code really dead

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From: Paul E. McKenney
Date: Tuesday, May 4, 2010 - 1:19 pm

From: Lai Jiangshan <laijs@cn.fujitsu.com>

cleanup: make dead code really dead

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index e54c123..6042fb8 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1236,11 +1236,11 @@ static void force_quiescent_state(struct rcu_state *rsp, int relaxed)
 		break; /* grace period idle or initializing, ignore. */
 
 	case RCU_SAVE_DYNTICK:
-
-		raw_spin_unlock(&rnp->lock);  /* irqs remain disabled */
 		if (RCU_SIGNAL_INIT != RCU_SAVE_DYNTICK)
 			break; /* So gcc recognizes the dead code. */
 
+		raw_spin_unlock(&rnp->lock);  /* irqs remain disabled */
+
 		/* Record dyntick-idle state. */
 		force_qs_rnp(rsp, dyntick_save_progress_counter);
 		raw_spin_lock(&rnp->lock);  /* irqs already disabled */
-- 
1.7.0

--
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Messages in current thread:
[PATCH tip/core/rcu 03/48] rcu: make dead code really dead, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 19/48] Debugobjects transition check, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 22/48] rcu head remove init, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 24/48] rcu: make SRCU usable in modules, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 0/48] v4 patches queued for 2.6.35, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 32/48] rculist: avoid __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 33/48] cgroups: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 34/48] credentials: rcu annotation, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 35/48] keys: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 36/48] nfs: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 38/48] perf_event: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 39/48] notifiers: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 40/48] radix-tree: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 41/48] idr: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 42/48] input: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 43/48] vhost: add __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 44/48] net/netfilter: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 45/48] kvm: add __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 46/48] kernel: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 47/48] net: __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
[PATCH tip/core/rcu 48/48] kvm: more __rcu annotations, Paul E. McKenney, (Tue May 4, 1:19 pm)
Re: [PATCH tip/core/rcu 43/48] vhost: add __rcu annotations, Michael S. Tsirkin, (Tue May 4, 2:39 pm)
Re: [PATCH tip/core/rcu 43/48] vhost: add __rcu annotations, Paul E. McKenney, (Tue May 4, 4:57 pm)
Re: [PATCH tip/core/rcu 43/48] vhost: add __rcu annotations, Michael S. Tsirkin, (Tue May 4, 4:59 pm)
Re: [PATCH tip/core/rcu 33/48] cgroups: __rcu annotations, Paul E. McKenney, (Tue May 4, 5:04 pm)
Re: [PATCH tip/core/rcu 43/48] vhost: add __rcu annotations, Paul E. McKenney, (Tue May 4, 5:39 pm)
Re: [PATCH tip/core/rcu 36/48] nfs: __rcu annotations, David Howells, (Wed May 5, 3:14 am)
Re: [PATCH tip/core/rcu 36/48] nfs: __rcu annotations, Trond Myklebust, (Wed May 5, 5:44 am)
Re: [PATCH tip/core/rcu 36/48] nfs: __rcu annotations, Paul E. McKenney, (Wed May 5, 2:01 pm)