[PATCH RFC tip/core/rcu 02/10] rcu: make dead code really dead
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From: Paul E. McKenney on 5 Apr 2010 14:40 From: Lai Jiangshan <laijs(a)cn.fujitsu.com> cleanup: make dead code really dead Signed-off-by: Lai Jiangshan <laijs(a)cn.fujitsu.com> Signed-off-by: Paul E. McKenney <paulmck(a)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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |