mds: do null snap flush when processing embeded cap releases

Signed-off-by: Yan, Zheng <zyan@redhat.com>

diff --git a/src/mds/Locker.cc b/src/mds/Locker.cc
index 9af0fe25e54274ce80b8d6c52552561821d25ad7..1eb102b71899d07b92ba7a49b5e87b81b0826ae3 100644 (file)
--- a/src/mds/Locker.cc
+++ b/src/mds/Locker.cc
@@ -2722,6 +2722,12 @@ void Locker::process_request_cap_release(MDRequestRef& mdr, client_t client, con
     caps &= cap->issued();
   }
   cap->confirm_receipt(seq, caps);
+
+  if (!in->client_need_snapflush.empty() &&
+      (cap->issued() & CEPH_CAP_ANY_FILE_WR) == 0) {
+    _do_null_snapflush(in, client);
+  }
+
   adjust_cap_wanted(cap, wanted, issue_seq);
   
   if (mdr)