bzr commit into mysql-6.0-falcon-team branch (cpowers:2852) Bug#39845

[Christopher Powers]

#At file:///home/cpowers/work/dev/dev-08/mysql/

 2852 Christopher Powers	2008-10-03
      Bug#39845, "Falcon: Concurrent online DROP INDEX causes assertion"
modified:
  storage/falcon/Table.cpp

per-file messages:
  storage/falcon/Table.cpp
    Get shared lock to Table::rollbackRecord() to prevent concurrent drop index.
=== modified file 'storage/falcon/Table.cpp'
--- a/storage/falcon/Table.cpp	2008-09-08 11:51:19 +0000
+++ b/storage/falcon/Table.cpp	2008-10-03 23:56:24 +0000
@@ -2117,7 +2117,10 @@ void Table::garbageCollect(Record *leavi
 	if (!leaving && !staying)
 		return;
 
-	Sync syncPrior(getSyncPrior(leaving ? leaving : staying), "Table::garbageCollect");
+	Sync sync (&syncObject, "Table::garbageCollect(1)");
+	sync.lock(Shared);
+	
+	Sync syncPrior(getSyncPrior(leaving ? leaving : staying), "Table::garbageCollect(2)");
 	syncPrior.lock(Shared);
 	
 	// Clean up field indexes