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ocfs2: o2hb: add some user/debug log 

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Reviewed-by: Ryan Ding <ryan.ding@oracle.com>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Gang He <ghe@suse.com>
Cc: rwxybh <rwxybh@126.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Junxiao Bi 2016-05-27 14:27:07 -07:00 committed by Linus Torvalds
parent e76f8237a2
commit 1bd1290283
1 changed files with 32 additions and 7 deletions
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39
fs/ocfs2/cluster/heartbeat.c
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@ -292,6 +292,8 @@ struct o2hb_bio_wait_ctxt {
int wc_error;
};
#define O2HB_NEGO_TIMEOUT_MS (O2HB_MAX_WRITE_TIMEOUT_MS/2)
enum {
O2HB_NEGO_TIMEOUT_MSG = 1,
O2HB_NEGO_APPROVE_MSG = 2,
@ -358,7 +360,7 @@ static void o2hb_arm_timeout(struct o2hb_region *reg)
cancel_delayed_work(&reg->hr_nego_timeout_work);
/* negotiate timeout must be less than write timeout. */
schedule_delayed_work(&reg->hr_nego_timeout_work,
msecs_to_jiffies(O2HB_MAX_WRITE_TIMEOUT_MS)/2);
msecs_to_jiffies(O2HB_NEGO_TIMEOUT_MS));
memset(reg->hr_nego_node_bitmap, 0, sizeof(reg->hr_nego_node_bitmap));
}
@ -389,7 +391,7 @@ again:
static void o2hb_nego_timeout(struct work_struct *work)
{
unsigned long live_node_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
int master_node, i;
int master_node, i, ret;
struct o2hb_region *reg;
reg = container_of(work, struct o2hb_region, hr_nego_timeout_work.work);
@ -398,7 +400,12 @@ static void o2hb_nego_timeout(struct work_struct *work)
master_node = find_next_bit(live_node_bitmap, O2NM_MAX_NODES, 0);
if (master_node == o2nm_this_node()) {
set_bit(master_node, reg->hr_nego_node_bitmap);
if (!test_bit(master_node, reg->hr_nego_node_bitmap)) {
printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s).\n",
o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000,
config_item_name(&reg->hr_item), reg->hr_dev_name);
set_bit(master_node, reg->hr_nego_node_bitmap);
}
if (memcmp(reg->hr_nego_node_bitmap, live_node_bitmap,
sizeof(reg->hr_nego_node_bitmap))) {
/* check negotiate bitmap every second to do timeout
@ -410,6 +417,8 @@ static void o2hb_nego_timeout(struct work_struct *work)
return;
}
printk(KERN_NOTICE "o2hb: all nodes hb write hung, maybe region %s (%s) is down.\n",
config_item_name(&reg->hr_item), reg->hr_dev_name);
/* approve negotiate timeout request. */
o2hb_arm_timeout(reg);
@ -419,13 +428,23 @@ static void o2hb_nego_timeout(struct work_struct *work)
if (i == master_node)
continue;
o2hb_send_nego_msg(reg->hr_key,
mlog(ML_HEARTBEAT, "send NEGO_APPROVE msg to node %d\n", i);
ret = o2hb_send_nego_msg(reg->hr_key,
O2HB_NEGO_APPROVE_MSG, i);
if (ret)
mlog(ML_ERROR, "send NEGO_APPROVE msg to node %d fail %d\n",
i, ret);
}
} else {
/* negotiate timeout with master node. */
o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG,
master_node);
printk(KERN_NOTICE "o2hb: node %d hb write hung for %ds on region %s (%s), negotiate timeout with node %d.\n",
o2nm_this_node(), O2HB_NEGO_TIMEOUT_MS/1000, config_item_name(&reg->hr_item),
reg->hr_dev_name, master_node);
ret = o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG,
master_node);
if (ret)
mlog(ML_ERROR, "send NEGO_TIMEOUT msg to node %d fail %d\n",
master_node, ret);
}
}
@ -436,6 +455,8 @@ static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data,
struct o2hb_nego_msg *nego_msg;
nego_msg = (struct o2hb_nego_msg *)msg->buf;
printk(KERN_NOTICE "o2hb: receive negotiate timeout message from node %d on region %s (%s).\n",
nego_msg->node_num, config_item_name(&reg->hr_item), reg->hr_dev_name);
if (nego_msg->node_num < O2NM_MAX_NODES)
set_bit(nego_msg->node_num, reg->hr_nego_node_bitmap);
else
@ -447,7 +468,11 @@ static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data,
static int o2hb_nego_approve_handler(struct o2net_msg *msg, u32 len, void *data,
void **ret_data)
{
o2hb_arm_timeout(data);
struct o2hb_region *reg = data;
printk(KERN_NOTICE "o2hb: negotiate timeout approved by master node on region %s (%s).\n",
config_item_name(&reg->hr_item), reg->hr_dev_name);
o2hb_arm_timeout(reg);
return 0;
}