From a0150c51956bfd7d0851fd5944d4485810ad64cf Mon Sep 17 00:00:00 2001
From: Michael Hanselmann <hansmi@google.com>
Date: Thu, 22 Nov 2012 23:29:07 +0100
Subject: [PATCH] Acquire node allocation lock during node query
If locking is used (usually by ganeti-watcher), node allocations must be
temporarily blocked.
Signed-off-by: Michael Hanselmann <hansmi@google.com>
Reviewed-by: Helga Velroyen <helgav@google.com>
---
lib/cmdlib.py | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/cmdlib.py b/lib/cmdlib.py
index 056f21eff..cfb708b60 100644
--- a/lib/cmdlib.py
+++ b/lib/cmdlib.py
@@ -5227,6 +5227,7 @@ class _NodeQuery(_QueryBase):
if self.do_locking:
# If any non-static field is requested we need to lock the nodes
lu.needed_locks[locking.LEVEL_NODE] = self.wanted
+ lu.needed_locks[locking.LEVEL_NODE_ALLOC] = locking.ALL_SET
def DeclareLocks(self, lu, level):
pass
--
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