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ocfs2: mle ref count debugging 

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Kurt Hackel 2006-04-27 19:04:49 -07:00 committed by Mark Fasheh
parent dc2ed195dd
commit aa85235427
1 changed files with 20 additions and 9 deletions
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29
fs/ocfs2/dlm/dlmmaster.c
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@ -371,9 +371,14 @@ static void __dlm_put_mle(struct dlm_master_list_entry *mle)
assert_spin_locked(&dlm->spinlock);
assert_spin_locked(&dlm->master_lock);
BUG_ON(!atomic_read(&mle->mle_refs.refcount));
kref_put(&mle->mle_refs, dlm_mle_release);
if (!atomic_read(&mle->mle_refs.refcount)) {
/* this may or may not crash, but who cares.
* it's a BUG. */
mlog(ML_ERROR, "bad mle: %p\n", mle);
dlm_print_one_mle(mle);
BUG();
} else
kref_put(&mle->mle_refs, dlm_mle_release);
}
@ -1008,6 +1013,12 @@ recheck:
"rechecking now\n", dlm->name, res->lockname.len,
res->lockname.name);
goto recheck;
} else {
if (!voting_done) {
mlog(0, "map not changed and voting not done "
"for %s:%.*s\n", dlm->name, res->lockname.len,
res->lockname.name);
}
}
if (m != O2NM_MAX_NODES) {
@ -1691,7 +1702,7 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data)
if (bit >= O2NM_MAX_NODES) {
/* not necessarily an error, though less likely.
* could be master just re-asserting. */
mlog(ML_ERROR, "no bits set in the maybe_map, but %u "
mlog(0, "no bits set in the maybe_map, but %u "
"is asserting! (%.*s)\n", assert->node_idx,
namelen, name);
} else if (bit != assert->node_idx) {
@ -1703,7 +1714,7 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data)
* number winning the mastery will respond
* YES to mastery requests, but this node
* had no way of knowing. let it pass. */
mlog(ML_ERROR, "%u is the lowest node, "
mlog(0, "%u is the lowest node, "
"%u is asserting. (%.*s) %u must "
"have begun after %u won.\n", bit,
assert->node_idx, namelen, name, bit,
@ -2268,8 +2279,8 @@ fail:
/* avoid hang during shutdown when migrating lockres
* to a node which also goes down */
if (dlm_is_node_dead(dlm, target)) {
mlog(0, "%s:%.*s: expected migration target %u "
"is no longer up. restarting.\n",
mlog(0, "%s:%.*s: expected migration "
"target %u is no longer up, restarting\n",
dlm->name, res->lockname.len,
res->lockname.name, target);
ret = -ERESTARTSYS;
@ -2790,8 +2801,8 @@ top:
spin_unlock(&mle->spinlock);
wake_up(&mle->wq);
mlog(0, "node %u died during migration from "
"%u to %u!\n", dead_node,
mlog(0, "%s: node %u died during migration from "
"%u to %u!\n", dlm->name, dead_node,
mle->master, mle->new_master);
/* if there is a lockres associated with this
* mle, find it and set its owner to UNKNOWN */