osd: Relax missing entry assert for partial writes.

This assert was relaxed to allow for missing partial write logs. However
it needs to be relaxed further to cope with the missing list not containing
some objects with later log entries.

Fixes tracker https://tracker.ceph.com/issues/73248

Signed-off-by: Alex Ainscow <[email protected]>

Author: aainscow

src/osd/PGLog.h

@@ -1184,9 +1184,11 @@ 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) &&