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| author |   Junxiao Bi <junxiao.bi@oracle.com> | 2016-05-27 14:27:04 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-27 14:49:37 -0700 |
| commit | e76f8237a2f7b7220980c0fb3c6d0b1d48ba79ad (patch) | |
| tree | 030e15f518bb5dd0c250c7e75cf746a2febc62c9 /fs/ocfs2/cluster/heartbeat.c | |
| parent | ocfs2: o2hb: add NEGO_TIMEOUT message (diff) | |
| download | linux-dev-e76f8237a2f7b7220980c0fb3c6d0b1d48ba79ad.tar.xz linux-dev-e76f8237a2f7b7220980c0fb3c6d0b1d48ba79ad.zip | |
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@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>
Diffstat (limited to '')
| -rw-r--r-- | fs/ocfs2/cluster/heartbeat.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 454c89076833..e929b15d6162 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/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 { @@ -388,7 +389,7 @@ again: static void o2hb_nego_timeout(struct work_struct *work) { unsigned long live_node_bitmap[BITS_TO_LONGS(O2NM_MAX_NODES)]; - int master_node; + int master_node, i; struct o2hb_region *reg; reg = container_of(work, struct o2hb_region, hr_nego_timeout_work.work); @@ -410,6 +411,17 @@ static void o2hb_nego_timeout(struct work_struct *work) } /* 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, @@ -432,6 +444,13 @@ static int o2hb_nego_timeout_handler(struct o2net_msg *msg, u32 len, void *data, return 0; } +static int o2hb_nego_approve_handler(struct o2net_msg *msg, u32 len, void *data, + void **ret_data) +{ + o2hb_arm_timeout(data); + return 0; +} + static inline void o2hb_bio_wait_init(struct o2hb_bio_wait_ctxt *wc) { atomic_set(&wc->wc_num_reqs, 1); @@ -2099,6 +2118,13 @@ static struct config_item *o2hb_heartbeat_group_make_item(struct config_group *g 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 unregister_handler; + ret = o2hb_debug_region_init(reg, o2hb_debug_dir); if (ret) { config_item_put(®->hr_item); |