mds: CInode should set projected_snaprealm_ptr to NULL if we pop the last one!

diff --git a/src/mds/CInode.cc b/src/mds/CInode.cc
index 1ed9ab4d226030b62613fdc23fbb69fe1a0c8209..757f8eed25a2f522907feceb2b550d09048c0a7e 100644 (file)
--- a/src/mds/CInode.cc
+++ b/src/mds/CInode.cc
@@ -306,6 +306,8 @@ void CInode::pop_projected_snaprealm(sr_t *next_snaprealm)
 
   if (invalidate_cached_snaps)
     snaprealm->invalidate_cached_snaps();
+  if (next_snaprealm == projected_snaprealm_ptr)
+    projected_snaprealm_ptr = NULL;
 }