From: Dipankar Sarma <dipankar@in.ibm.com>
There is a series of patches in my tree and these 3 are the first ones that
should probably be merged down the road. Descriptions are on top of the
patches. Please include them in -mm.
A lot of RCU code will be cleaned up later in order to support
call_rcu_bh(), the separate RCU interface that considers softirq handler
completion a quiescent state.
This patch:
Minor cleanup of the hotplug code to remove #ifdef in cpu event notifier
handler. If CONFIG_HOTPLUG_CPU is not defined, CPU_DEAD case will be
optimized off.
Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
---
25-akpm/kernel/rcupdate.c | 8 ++++++--
1 files changed, 6 insertions(+), 2 deletions(-)
diff -puN kernel/rcupdate.c~rcu-cpu-offline-cleanup kernel/rcupdate.c
--- 25/kernel/rcupdate.c~rcu-cpu-offline-cleanup 2004-07-31 17:20:32.970588528 -0700
+++ 25-akpm/kernel/rcupdate.c 2004-07-31 17:20:32.974587920 -0700
@@ -243,6 +243,12 @@ static void rcu_offline_cpu(int cpu)
tasklet_kill_immediate(&RCU_tasklet(cpu), cpu);
}
+#else
+
+static void rcu_offline_cpu(int cpu)
+{
+}
+
#endif
void rcu_restart_cpu(int cpu)
@@ -326,11 +332,9 @@ static int __devinit rcu_cpu_notify(stru
case CPU_UP_PREPARE:
rcu_online_cpu(cpu);
break;
-#ifdef CONFIG_HOTPLUG_CPU
case CPU_DEAD:
rcu_offline_cpu(cpu);
break;
-#endif
default:
break;
}
_