X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=fs%2Focfs2%2Fdlm%2Fdlmmaster.c;h=ed1601d1831cf41cae0a9df6758811b5294068c9;hb=b7084ab538ac2bd71ce494cf1cbbea9fe9db2c07;hp=2e371e06894f0c7f04ad800558bf4c2d04e3a7d3;hpb=f42a100b2272bc5cb44fb2aa03526b436b1d6833;p=linux-2.6

diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 2e371e0689..ed1601d183 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -886,7 +886,7 @@ redo_request:
 		} 
 
 		dlm_kick_recovery_thread(dlm);
-		msleep(100);
+		msleep(1000);
 		dlm_wait_for_recovery(dlm);
 
 		spin_lock(&dlm->spinlock);
@@ -899,6 +899,9 @@ redo_request:
 		} else
 			wait_on_recovery = 0;
 		spin_unlock(&dlm->spinlock);
+
+		if (wait_on_recovery)
+			dlm_wait_for_node_recovery(dlm, bit, 10000);
 	}
 
 	/* must wait for lock to be mastered elsewhere */
@@ -2000,6 +2003,23 @@ static void dlm_assert_master_worker(struct dlm_work_item *item, void *data)
 		}
 	}
 
+	/*
+	 * If we're migrating this lock to someone else, we are no
+	 * longer allowed to assert out own mastery.  OTOH, we need to
+	 * prevent migration from starting while we're still asserting
+	 * our dominance.  The reserved ast delays migration.
+	 */
+	spin_lock(&res->spinlock);
+	if (res->state & DLM_LOCK_RES_MIGRATING) {
+		mlog(0, "Someone asked us to assert mastery, but we're "
+		     "in the middle of migration.  Skipping assert, "
+		     "the new master will handle that.\n");
+		spin_unlock(&res->spinlock);
+		goto put;
+	} else
+		__dlm_lockres_reserve_ast(res);
+	spin_unlock(&res->spinlock);
+
 	/* this call now finishes out the nodemap
 	 * even if one or more nodes die */
 	mlog(0, "worker about to master %.*s here, this=%u\n",
@@ -2012,6 +2032,10 @@ static void dlm_assert_master_worker(struct dlm_work_item *item, void *data)
 		mlog_errno(ret);
 	}
 
+	/* Ok, we've asserted ourselves.  Let's let migration start. */
+	dlm_lockres_release_ast(dlm, res);
+
+put:
 	dlm_lockres_put(res);
 
 	mlog(0, "finished with dlm_assert_master_worker\n");