PG: verify log versions during read_log

Signed-off-by: Samuel Just <sam.just@inktank.com>

diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index 2bebff3d72e0c27f37516eaffb8173989b72e1ae..43a20f890d853dbd447a2ca082f253d5a091e0ff 100644 (file)
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -5080,6 +5080,11 @@ bool PG::read_log(ObjectStore *store, coll_t coll, hobject_t log_oid,
       pg_log_entry_t e;
       e.decode_with_checksum(bp);
       dout(20) << "read_log " << e << dendl;
+      if (!log.log.empty()) {
+       pg_log_entry_t last_e(log.log.back());
+       assert(last_e.version.version == e.version.version - 1);
+       assert(last_e.version.epoch <= e.version.epoch);
+      }
       log.log.push_back(e);
       log.head = e.version;
     }