os/bluestore: Fix read_main_bdev_label

When valid label with new epoch is found,
all that we have marked as good before are released.

Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>

diff --git a/src/os/bluestore/BlueStore.cc b/src/os/bluestore/BlueStore.cc
index 3e513b3b4e13e0ed762a71847125a15a09650f0e..a518965742cebae3809a33df78233d5b837cb7a1 100644 (file)
--- a/src/os/bluestore/BlueStore.cc
+++ b/src/os/bluestore/BlueStore.cc
@@ -6695,9 +6695,13 @@ int BlueStore::_read_main_bdev_label(
             *out_is_multi = true;
           }
           if(out_valid_positions) {
-            out_valid_positions->push_back(position);
+            // clear out old versions
+            out_valid_positions->clear();
           }
         }
+        if(v == epoch && out_valid_positions) {
+          out_valid_positions->push_back(position);
+        }
       }
     } else if (r == 1) {
       // tried to read but no disk