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Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/dlm/dlmmaster.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 13719d3f35f8..525dc06468c4 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -2416,7 +2416,17 @@ int dlm_deref_lockres_done_handler(struct o2net_msg *msg, u32 len, void *data,
}
spin_lock(&res->spinlock);
- BUG_ON(!(res->state & DLM_LOCK_RES_DROPPING_REF));
+ if (!(res->state & DLM_LOCK_RES_DROPPING_REF)) {
+ spin_unlock(&res->spinlock);
+ spin_unlock(&dlm->spinlock);
+ mlog(ML_NOTICE, "%s:%.*s: node %u sends deref done "
+ "but it is already derefed!\n", dlm->name,
+ res->lockname.len, res->lockname.name, node);
+ dlm_lockres_put(res);
+ ret = 0;
+ goto done;
+ }
+
if (!list_empty(&res->purge)) {
mlog(0, "%s: Removing res %.*s from purgelist\n",
dlm->name, res->lockname.len, res->lockname.name);
@@ -2456,7 +2466,6 @@ int dlm_deref_lockres_done_handler(struct o2net_msg *msg, u32 len, void *data,
spin_unlock(&dlm->spinlock);
ret = 0;
-
done:
dlm_put(dlm);
return ret;