osd: be slightly paranoid about value of okseed

The scrubber.seed value is set based on the peer feature; check for that
too explicitly, and assert the scrubber.seed value matches.

No change in behavior here.

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

diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index bac9c48c9d61313941cc5038a5fdd174c4b2f8d5..cd2d79ecf8989e33b92da3125ef7ed7ce95c6a1a 100644 (file)
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -4174,9 +4174,13 @@ void PG::scrub_compare_maps()
       maps[*i] = &scrubber.received_maps[*i];
     }
 
+    // can we relate scrub digests to oi digests?
+    bool okseed = (get_min_peer_features() & CEPH_FEATURE_OSD_OBJECT_DIGEST);
+    assert(okseed == (scrubber.seed == 0xffffffff));
+
     get_pgbackend()->be_compare_scrubmaps(
       maps,
-      scrubber.seed == 0xffffffff,  // can we relate scrub digests to oi digests?
+      okseed,
       scrubber.missing,
       scrubber.inconsistent,
       authoritative,