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[19/30] mds: fix check for base inode discovery

Message ID 1369296418-14871-20-git-send-email-zheng.z.yan@intel.com (mailing list archive)
State New, archived
Headers show

Commit Message

Yan, Zheng May 23, 2013, 8:06 a.m. UTC 
From: "Yan, Zheng" <zheng.z.yan@intel.com>

If a MDiscover message is for discovering base inode, want_base_dir
should be false, path should be empty.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
---
 src/mds/MDCache.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
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Patch

diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index 5e8f2a5..5c2732b 100644
--- a/src/mds/MDCache.cc
+++ b/src/mds/MDCache.cc
@@ -9175,7 +9175,8 @@  void MDCache::handle_discover(MDiscover *dis)
   snapid_t snapid = dis->get_snapid();
 
   // get started.
-  if (MDS_INO_IS_BASE(dis->get_base_ino())) {
+  if (MDS_INO_IS_BASE(dis->get_base_ino()) &&
+      !dis->wants_base_dir() && dis->get_want().depth() == 0) {
     // wants root
     dout(7) << "handle_discover from mds." << from
 	    << " wants base + " << dis->get_want().get_path()