os/bluestore/BlueStore.cc: when do omapclear, it should clear omap_head.

Signed-off-by: Jianpeng Ma <jianpeng.ma@intel.com>

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 52f9055083ceb60281fcc5ca98457cc222770f7f..ef63b9488e3ca8420c3c7d1aec54edadd040a925 100644 (file)
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -6057,6 +6057,8 @@ int BlueStore::_omap_clear(TransContext *txc,
   int r = 0;
   if (o->onode.omap_head != 0) {
     _do_omap_clear(txc, o->onode.omap_head);
+    o->onode.omap_head = 0;
+    txc->write_onode(o);
   }
   dout(10) << __func__ << " " << c->cid << " " << o->oid << " = " << r << dendl;
   return r;