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ocfs2: better error handling during assert master message

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handle errors during lock assert master by either killing self or other node

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 19:26:15 -07:00 committed by Mark Fasheh
parent a7f90d83ea
commit a9ee4c8a67
1 changed files with 14 additions and 4 deletions
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18
fs/ocfs2/dlm/dlmmaster.c
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@ -1633,6 +1633,8 @@ static int dlm_do_assert_master(struct dlm_ctxt *dlm, const char *lockname,
dlm_node_iter_init(nodemap, &iter);
while ((to = dlm_node_iter_next(&iter)) >= 0) {
int r = 0;
struct dlm_master_list_entry *mle = NULL;
mlog(0, "sending assert master to %d (%.*s)\n", to,
namelen, lockname);
memset(&assert, 0, sizeof(assert));
@ -1657,7 +1659,15 @@ static int dlm_do_assert_master(struct dlm_ctxt *dlm, const char *lockname,
/* ok, something horribly messed. kill thyself. */
mlog(ML_ERROR,"during assert master of %.*s to %u, "
"got %d.\n", namelen, lockname, to, r);
dlm_dump_lock_resources(dlm);
spin_lock(&dlm->spinlock);
spin_lock(&dlm->master_lock);
if (dlm_find_mle(dlm, &mle, (char *)lockname,
namelen)) {
dlm_print_one_mle(mle);
__dlm_put_mle(mle);
}
spin_unlock(&dlm->master_lock);
spin_unlock(&dlm->spinlock);
BUG();
} else if (r == EAGAIN) {
mlog(0, "%.*s: node %u create mles on other "
@ -1922,12 +1932,12 @@ int dlm_assert_master_handler(struct o2net_msg *msg, u32 len, void *data)
kill:
/* kill the caller! */
mlog(ML_ERROR, "Bad message received from another node. Dumping state "
"and killing the other node now! This node is OK and can continue.\n");
__dlm_print_one_lock_resource(res);
spin_unlock(&res->spinlock);
spin_unlock(&dlm->spinlock);
dlm_lockres_put(res);
mlog(ML_ERROR, "Bad message received from another node. Dumping state "
"and killing the other node now! This node is OK and can continue.\n");
dlm_dump_lock_resources(dlm);
dlm_put(dlm);
return -EINVAL;
}