filejournal: initialize header before writing

Avoid writing uninitialized crap.

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

diff --git a/src/os/FileJournal.cc b/src/os/FileJournal.cc
index b326fea360aa5af0d0690ee132043a3629962848..5a2ec11d2d72a39aac57048a5f6711cf377b28c9 100644 (file)
--- a/src/os/FileJournal.cc
+++ b/src/os/FileJournal.cc
@@ -786,6 +786,7 @@ int FileJournal::prepare_single_write(bufferlist& bl, off64_t& queue_pos, uint64
     
   // add it this entry
   entry_header_t h;
+  memset(&h, 0, sizeof(h));
   h.seq = seq;
   h.pre_pad = pre_pad;
   h.len = ebl.length();