From 20e61c23ff5671a3799a5860210732cee4fefef5 Mon Sep 17 00:00:00 2001
From: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Date: Thu, 25 Sep 2014 15:01:37 +0800
Subject: [PATCH v3 12/21] modify timer to hide offline cpus' data

This patch will hide timer data of offline cpus.

The original output is like below:
<cut>
crash> timer
...
4310933504  ffffffffa0311750  ffffffff8154f790  <inet_frag_secret_rebuild>
4380688384  ffff880036dae568  ffffffff8157ed30  <ipv6_regen_rndid>
TVEC_BASES[2]: ffff88003db20000
JIFFIES
4310640297
EXPIRES     TIMER_LIST         FUNCTION
TVEC_BASES[3]: ffff88003db44000
  JIFFIES
4310640297
...
<cut>

With data of offline cpu(cpu #2) hiden, the output is like below:
<cut>
crash> timer
...
4310933504  ffffffffa0311750  ffffffff8154f790  <inet_frag_secret_rebuild>
4380688384  ffff880036dae568  ffffffff8157ed30  <ipv6_regen_rndid>
TVEC_BASES[2]: [OFFLINE]
TVEC_BASES[3]: ffff88003db44000
  JIFFIES
4310640297
...
<cut>

Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
---
 kernel.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/kernel.c b/kernel.c
index 377e03c..c71748d 100755
--- a/kernel.c
+++ b/kernel.c
@@ -7431,6 +7431,16 @@ dump_timer_data_tvec_bases_v2(void)
 	cpu = 0;
 
 next_cpu:
+	/*
+	 * hide data of offline cpu and goto next cpu
+	 */
+
+	if (hide_offline_cpu(cpu)) {
+	        fprintf(fp, "TVEC_BASES[%d]: [OFFLINE]\n", cpu);
+		if (++cpu < kt->cpus)
+			goto next_cpu;
+	}
+
 
 	count = 0;
 	td = (struct timer_data *)NULL;
-- 
1.8.5.3