osd: use pif directly

We don't have to call past_intervals.begin() again as we currently
have pif point to it already.

Signed-off-by: xie xingguo <xie.xingguo@zte.com.cn>

diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index 4ab0c032cca350f889a1530c0e1744691a86e286..4d915f3cad4712c1dcbdbcd9fcee3dd5e1c3e6e2 100644 (file)
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -702,7 +702,7 @@ bool PG::_calc_past_interval_range(epoch_t *start, epoch_t *end, epoch_t oldest_
               << info.history.last_epoch_clean << dendl;
       return false;
     }
-    *end = past_intervals.begin()->first;
+    *end = pif->first;
   }
 
   *start = MAX(MAX(info.history.epoch_created,