filejournal: assert submit_entry gets >0 bytes

Signed-off-by: Sage Weil <sage.weil@dreamhost.com>

diff --git a/src/os/FileJournal.cc b/src/os/FileJournal.cc
index 5a2ec11d2d72a39aac57048a5f6711cf377b28c9..a73a6c1d309072bfaacb5704388faa3fc36cc4a5 100644 (file)
--- a/src/os/FileJournal.cc
+++ b/src/os/FileJournal.cc
@@ -1029,6 +1029,7 @@ void FileJournal::submit_entry(uint64_t seq, bufferlist& e, int alignment, Conte
   dout(5) << "submit_entry seq " << seq
           << " len " << e.length()
           << " (" << oncommit << ")" << dendl;
+  assert(e.length() > 0);
 
   completions.push_back(completion_item(seq, oncommit, ceph_clock_now(g_ceph_context)));