The patch titled
Subject: ocfs2: o2hb: add NEGOTIATE_APPROVE message
has been added to the -mm tree. Its filename is
ocfs2-o2hb-add-negotiate_approve-message.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ocfs2-o2hb-add-negotiate_approve-message.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ocfs2-o2hb-add-negotiate_approve-message.patch
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------------------------------------------------------
From: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Subject: ocfs2: o2hb: add NEGOTIATE_APPROVE message
This message is used to re-queue write timeout timer and negotiate timer
when all nodes suffer a write hung to storage, this makes node not fence
self if storage down.
Signed-off-by: Junxiao Bi <junxiao.bi@xxxxxxxxxx>
Reviewed-by: Ryan Ding <ryan.ding@xxxxxxxxxx>
Cc: Gang He <ghe@xxxxxxxx>
Cc: rwxybh <rwxybh@xxxxxxx>
Cc: Mark Fasheh <mfasheh@xxxxxxx>
Cc: Joel Becker <jlbec@xxxxxxxxxxxx>
Cc: Joseph Qi <joseph.qi@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/ocfs2/cluster/heartbeat.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)
diff -puN fs/ocfs2/cluster/heartbeat.c~ocfs2-o2hb-add-negotiate_approve-message fs/ocfs2/cluster/heartbeat.c
--- a/fs/ocfs2/cluster/heartbeat.c~ocfs2-o2hb-add-negotiate_approve-message
+++ a/fs/ocfs2/cluster/heartbeat.c
@@ -294,6 +294,7 @@ struct o2hb_bio_wait_ctxt {
enum {
O2HB_NEGO_TIMEOUT_MSG = 1,
+ O2HB_NEGO_APPROVE_MSG = 2,
};
struct o2hb_nego_msg {
@@ -392,7 +393,7 @@ static void o2hb_nego_timeout(struct wor
container_of(work, struct o2hb_region,
hr_nego_timeout_work.work);
unsigned long live_node_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)];
- int master_node;
+ int master_node, i;
o2hb_fill_node_map(live_node_bitmap, sizeof(live_node_bitmap));
/* lowest node as master node to make negotiate decision. */
@@ -412,6 +413,17 @@ static void o2hb_nego_timeout(struct wor
}
/* approve negotiate timeout request. */
+ o2hb_arm_timeout(reg);
+
+ i = -1;
+ while ((i = find_next_bit(live_node_bitmap,
+ O2NM_MAX_NODES, i + 1)) < O2NM_MAX_NODES) {
+ if (i == master_node)
+ continue;
+
+ o2hb_send_nego_msg(reg->hr_key,
+ O2HB_NEGO_APPROVE_MSG, i);
+ }
} else {
/* negotiate timeout with master node. */
o2hb_send_nego_msg(reg->hr_key, O2HB_NEGO_TIMEOUT_MSG,
@@ -434,6 +446,13 @@ static int o2hb_nego_timeout_handler(str
return 0;
}
+static int o2hb_nego_approve_handler(struct o2net_msg *msg, u32 len, void *data,
+ void **ret_data)
+{
+ o2hb_arm_timeout((struct o2hb_region *)data);
+ return 0;
+}
+
static inline void o2hb_bio_wait_init(struct o2hb_bio_wait_ctxt *wc)
{
atomic_set(&wc->wc_num_reqs, 1);
@@ -2100,6 +2119,13 @@ static struct config_item *o2hb_heartbea
if (ret)
goto free;
+ ret = o2net_register_handler(O2HB_NEGO_APPROVE_MSG, reg->hr_key,
+ sizeof(struct o2hb_nego_msg),
+ o2hb_nego_approve_handler,
+ reg, NULL, ®->hr_handler_list);
+ if (ret)
+ goto free_handler;
+
ret = o2hb_debug_region_init(reg, o2hb_debug_dir);
if (ret) {
config_item_put(®->hr_item);
_
Patches currently in -mm which might be from junxiao.bi@xxxxxxxxxx are
ocfs2-o2hb-add-negotiate-timer.patch
ocfs2-o2hb-add-nego_timeout-message.patch
ocfs2-o2hb-add-negotiate_approve-message.patch
ocfs2-o2hb-add-some-user-debug-log.patch
ocfs2-o2hb-dont-negotiate-if-last-hb-fail.patch
ocfs2-o2hb-fix-hb-hung-time.patch
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