From e01d426850817f8daae2c4d319409947af0dcbd2 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@newdream.net>
Date: Mon, 26 May 2008 19:51:27 -0700
Subject: [PATCH] mds: fix up open_remote_ino_2 to open remote stray, root if
 necessary

---
 src/mds/Locker.cc  |  2 +-
 src/mds/MDCache.cc | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/src/mds/Locker.cc b/src/mds/Locker.cc
index 1b9289149705a..6693336598477 100644
--- a/src/mds/Locker.cc
+++ b/src/mds/Locker.cc
@@ -2016,7 +2016,7 @@ void Locker::scatter_wrlock_finish(ScatterLock *lock, Mutation *mut)
 
 bool Locker::scatter_xlock_start(ScatterLock *lock, MDRequest *mut)
 {
-  dout(7) << "file_xlock_start on " << *lock << " on " << *lock->get_parent() << dendl;
+  dout(7) << "scatter_xlock_start on " << *lock << " on " << *lock->get_parent() << dendl;
 
   assert(lock->get_parent()->is_auth());  // remote scatter xlock not implemented
 
diff --git a/src/mds/MDCache.cc b/src/mds/MDCache.cc
index 380453c647ac7..272cde55aa667 100644
--- a/src/mds/MDCache.cc
+++ b/src/mds/MDCache.cc
@@ -4467,7 +4467,19 @@ void MDCache::open_remote_ino_2(inodeno_t ino,
     i--;
     if (!i) {
       in = get_inode(anchortrace[i].dirfrag.ino);
-      assert(in);  // actually, we may need to open the root or a foreign stray inode, here.
+      if (!in) {
+	dout(0) << "open_remote_ino_2 don't have inode " << anchortrace[i].dirfrag.ino << dendl;
+	if (anchortrace[i].dirfrag.ino == MDS_INO_ROOT) {
+	  open_root(onfinish);
+	  return;
+	}
+	if (MDS_INO_IS_STRAY(anchortrace[i].dirfrag.ino)) {
+	  int mds = anchortrace[i].dirfrag.ino % MAX_MDS;
+	  open_foreign_stray(mds, onfinish);
+	  return;
+	}
+	assert(in);  // hrm!
+      }
       break;
     }
   }
-- 
2.39.5