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-rw-r--r--fs/ocfs2/dlm/dlmmaster.c36
1 files changed, 20 insertions, 16 deletions
diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index a65a877..b36cce0 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1507,10 +1507,11 @@ way_up_top:
/* take care of the easy cases up front */
spin_lock(&res->spinlock);
- if (res->state & DLM_LOCK_RES_RECOVERING) {
+ if (res->state & (DLM_LOCK_RES_RECOVERING|
+ DLM_LOCK_RES_MIGRATING)) {
spin_unlock(&res->spinlock);
mlog(0, "returning DLM_MASTER_RESP_ERROR since res is "
- "being recovered\n");
+ "being recovered/migrated\n");
response = DLM_MASTER_RESP_ERROR;
if (mle)
kmem_cache_free(dlm_mle_cache, mle);
@@ -2493,6 +2494,9 @@ fail:
* the lockres
*/
+ /* now that remote nodes are spinning on the MIGRATING flag,
+ * ensure that all assert_master work is flushed. */
+ flush_workqueue(dlm->dlm_worker);
/* get an extra reference on the mle.
* otherwise the assert_master from the new
@@ -2547,7 +2551,8 @@ fail:
res->owner == target)
break;
- mlog(0, "timed out during migration\n");
+ mlog(0, "%s:%.*s: timed out during migration\n",
+ dlm->name, res->lockname.len, res->lockname.name);
/* avoid hang during shutdown when migrating lockres
* to a node which also goes down */
if (dlm_is_node_dead(dlm, target)) {
@@ -2555,20 +2560,19 @@ fail:
"target %u is no longer up, restarting\n",
dlm->name, res->lockname.len,
res->lockname.name, target);
- ret = -ERESTARTSYS;
+ ret = -EINVAL;
+ /* migration failed, detach and clean up mle */
+ dlm_mle_detach_hb_events(dlm, mle);
+ dlm_put_mle(mle);
+ dlm_put_mle_inuse(mle);
+ spin_lock(&res->spinlock);
+ res->state &= ~DLM_LOCK_RES_MIGRATING;
+ spin_unlock(&res->spinlock);
+ goto leave;
}
- }
- if (ret == -ERESTARTSYS) {
- /* migration failed, detach and clean up mle */
- dlm_mle_detach_hb_events(dlm, mle);
- dlm_put_mle(mle);
- dlm_put_mle_inuse(mle);
- spin_lock(&res->spinlock);
- res->state &= ~DLM_LOCK_RES_MIGRATING;
- spin_unlock(&res->spinlock);
- goto leave;
- }
- /* TODO: if node died: stop, clean up, return error */
+ } else
+ mlog(0, "%s:%.*s: caught signal during migration\n",
+ dlm->name, res->lockname.len, res->lockname.name);
}
/* all done, set the owner, clear the flag */
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