Merge pull request ceph#65770 from aainscow/tracker_73248

osd: Relax missing entry assert for partial writes.

Author: SrinivasaBharath

src/osd/PGLog.h

@@ -1185,9 +1185,11 @@ struct PGLog : DoutPrefixProvider {
       if (objiter->second->is_update() ||
 	  (missing.may_include_deletes && objiter->second->is_delete())) {
 	if (ec_optimizations_enabled) {
-	  // relax the assert for partial writes - missing may be newer than the
-	  // most recent log entry
-	  ceph_assert(missing.is_missing(hoid) &&
+	  // relax the assert for partial writes. The log may not contain any
+	  // updates for this object, in which case the object will not be in
+	  // the missing list. If it is in the missing list, then the need version
+	  // had better be higher or equal to the log version
+	  ceph_assert(!missing.is_missing(hoid) ||
 		      missing.get_items().at(hoid).need >= objiter->second->version);
 	} else {
 	  ceph_assert(missing.is_missing(hoid) &&