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authorPaul E. McKenney <paul.mckenney@linaro.org>2012-01-12 11:01:14 -0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2012-02-21 09:03:44 -0800
commit30fbcc90b02187c55c57ff0ecf57cecbd487d694 (patch)
tree866824e1972d900ceda045c93a3958c74ffbf1e9
parent1aa03f1188f7b0b85df2de602b33ee7b6fab8e00 (diff)
rcu: Clean up straggling rcu_preempt_needs_cpu() name
The recent updates to RCU_CPU_FAST_NO_HZ have an rcu_needs_cpu() that does more than just check for callbacks, so get the name for rcu_preempt_needs_cpu() consistent with that change, now calling it rcu_preempt_cpu_has_callbacks(). Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
-rw-r--r--kernel/rcutree.c2
-rw-r--r--kernel/rcutree.h2
-rw-r--r--kernel/rcutree_plugin.h8
3 files changed, 6 insertions, 6 deletions
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 49bb363a083..0569ba11e35 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1958,7 +1958,7 @@ static int rcu_cpu_has_callbacks(int cpu)
/* RCU callbacks either ready or pending? */
return per_cpu(rcu_sched_data, cpu).nxtlist ||
per_cpu(rcu_bh_data, cpu).nxtlist ||
- rcu_preempt_needs_cpu(cpu);
+ rcu_preempt_cpu_has_callbacks(cpu);
}
static DEFINE_PER_CPU(struct rcu_head, rcu_barrier_head) = {NULL};
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 05e03675439..58c9fc3bc82 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -449,7 +449,7 @@ static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
bool wake);
#endif /* #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU) */
static int rcu_preempt_pending(int cpu);
-static int rcu_preempt_needs_cpu(int cpu);
+static int rcu_preempt_cpu_has_callbacks(int cpu);
static void __cpuinit rcu_preempt_init_percpu_data(int cpu);
static void rcu_preempt_cleanup_dying_cpu(void);
static void __init __rcu_init_preempt(void);
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index f8e6dcc9186..297d561c3e4 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -887,9 +887,9 @@ static int rcu_preempt_pending(int cpu)
}
/*
- * Does preemptible RCU need the CPU to stay out of dynticks mode?
+ * Does preemptible RCU have callbacks on this CPU?
*/
-static int rcu_preempt_needs_cpu(int cpu)
+static int rcu_preempt_cpu_has_callbacks(int cpu)
{
return !!per_cpu(rcu_preempt_data, cpu).nxtlist;
}
@@ -1128,9 +1128,9 @@ static int rcu_preempt_pending(int cpu)
}
/*
- * Because preemptible RCU does not exist, it never needs any CPU.
+ * Because preemptible RCU does not exist, it never has callbacks
*/
-static int rcu_preempt_needs_cpu(int cpu)
+static int rcu_preempt_cpu_has_callbacks(int cpu)
{
return 0;
}