[Ocfs2-commits] smushran commits r2845 - branches/ocfs2-1.2/fs/ocfs2/dlm
svn-commits@oss.oracle.com
svn-commits at oss.oracle.com
Wed Apr 19 15:38:03 CDT 2006
Author: smushran
Signed-off-by: khackel
Signed-off-by: mfasheh
Date: 2006-04-19 15:38:02 -0500 (Wed, 19 Apr 2006)
New Revision: 2845
Modified:
branches/ocfs2-1.2/fs/ocfs2/dlm/dlmrecovery.c
Log:
DLM: Catches bad recovery state
Ensures the cluster is recovering only one dead node at a time
Signed-off-by: khackel
Signed-off-by: mfasheh
Modified: branches/ocfs2-1.2/fs/ocfs2/dlm/dlmrecovery.c
===================================================================
--- branches/ocfs2-1.2/fs/ocfs2/dlm/dlmrecovery.c 2006-04-19 20:30:46 UTC (rev 2844)
+++ branches/ocfs2-1.2/fs/ocfs2/dlm/dlmrecovery.c 2006-04-19 20:38:02 UTC (rev 2845)
@@ -709,6 +709,14 @@
if (!dlm_grab(dlm))
return -EINVAL;
+ if (lr->dead_node != dlm->reco.dead_node) {
+ mlog(ML_ERROR, "%s: node %u sent dead_node=%u, but local "
+ "dead_node is %u\n", dlm->name, lr->node_idx,
+ lr->dead_node, dlm->reco.dead_node);
+ /* this is a hack */
+ dlm_put(dlm);
+ return -ENOMEM;
+ }
BUG_ON(lr->dead_node != dlm->reco.dead_node);
item = kcalloc(1, sizeof(*item), GFP_KERNEL);
@@ -1502,7 +1510,7 @@
struct dlm_lock *newlock = NULL;
struct dlm_lockstatus *lksb = NULL;
int ret = 0;
- int i;
+ int i, bad;
struct list_head *iter;
struct dlm_lock *lock = NULL;
@@ -1612,9 +1620,33 @@
* relative to each other, but clearly *not*
* preserved relative to locks from other nodes.
*/
+ bad = 0;
spin_lock(&res->spinlock);
- dlm_lock_get(newlock);
- list_add_tail(&newlock->list, queue);
+ list_for_each_entry(lock, queue, list) {
+ if (lock->ml.cookie == ml->cookie) {
+ u64 c = lock->ml.cookie;
+ mlog(ML_ERROR, "%s:%.*s: %u:%llu: lock already "
+ "exists on this lockres!\n", dlm->name,
+ res->lockname.len, res->lockname.name,
+ dlm_get_lock_cookie_node(c),
+ dlm_get_lock_cookie_seq(c));
+
+ mlog(ML_NOTICE, "sent lock: type=%d, conv=%d, "
+ "node=%u, cookie=%u:%llu, queue=%d\n",
+ ml->type, ml->convert_type, ml->node,
+ dlm_get_lock_cookie_node(ml->cookie),
+ dlm_get_lock_cookie_seq(ml->cookie),
+ ml->list);
+
+ __dlm_print_one_lock_resource(res);
+ bad = 1;
+ break;
+ }
+ }
+ if (!bad) {
+ dlm_lock_get(newlock);
+ list_add_tail(&newlock->list, queue);
+ }
spin_unlock(&res->spinlock);
}
mlog(0, "done running all the locks\n");
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