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| author | Junxiao Bi <junxiao.bi@oracle.com> | 2016-05-27 23:27:10 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-27 23:49:37 +0200 |
| commit | 88dbe98dc72fa0c2b778210e2079cd69d2477b36 (patch) | |
| tree | ce2ce48ac1b3592e9ba841c49101b72224b2ce94 /fs/ocfs2/cluster | |
| parent | ocfs2: o2hb: add some user/debug log (diff) | |
| download | linux-88dbe98dc72fa0c2b778210e2079cd69d2477b36.tar.xz linux-88dbe98dc72fa0c2b778210e2079cd69d2477b36.zip | |
ocfs2: o2hb: don't negotiate if last hb fail
Sometimes io error is returned when storage is down for a while. Like
for iscsi device, stroage is made offline when session timeout, and this
will make all io return -EIO. For this case, nodes shouldn't do
negotiate timeout but should fence self. So let nodes fence self when
o2hb_do_disk_heartbeat return an error, this is the same behavior with
o2hb without negotiate timer.
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 'fs/ocfs2/cluster')
| -rw-r--r-- | fs/ocfs2/cluster/heartbeat.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 84ebeb5678c6..31a5c0803e0a 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -284,6 +284,9 @@ struct o2hb_region { /* Message key for negotiate timeout message. */ unsigned int hr_key; struct list_head hr_handler_list; + + /* last hb status, 0 for success, other value for error. */ + int hr_last_hb_status; }; struct o2hb_bio_wait_ctxt { @@ -395,6 +398,12 @@ static void o2hb_nego_timeout(struct work_struct *work) struct o2hb_region *reg; reg = container_of(work, struct o2hb_region, hr_nego_timeout_work.work); + /* don't negotiate timeout if last hb failed since it is very + * possible io failed. Should let write timeout fence self. + */ + if (reg->hr_last_hb_status) + return; + o2hb_fill_node_map(live_node_bitmap, sizeof(live_node_bitmap)); /* lowest node as master node to make negotiate decision. */ master_node = find_next_bit(live_node_bitmap, O2NM_MAX_NODES, 0); @@ -1228,6 +1237,7 @@ static int o2hb_thread(void *data) before_hb = ktime_get_real(); ret = o2hb_do_disk_heartbeat(reg); + reg->hr_last_hb_status = ret; after_hb = ktime_get_real(); |