PG: add BackfillTooFull event for RepRecovering

Replica will use this to notify Primary to stop backfilling.

Signed-off-by: Samuel Just <sam.just@inktank.com>

2 files changed, 12 insertions, 1 deletions

diff --git a/src/osd/PG.cc b/src/osd/PG.cc
index ab5d3158e1f..cc131163e61 100644
--- a/src/osd/PG.cc
+++ b/src/osd/PG.cc
@@ -6125,6 +6125,14 @@ PG::RecoveryState::RepRecovering::RepRecovering(my_context ctx)
   context< RecoveryMachine >().log_enter(state_name);
 }
 
+boost::statechart::result
+PG::RecoveryState::RepRecovering::react(const BackfillTooFull &)
+{
+  PG *pg = context< RecoveryMachine >().pg;
+  pg->reject_reservation();
+  return transit<RepNotRecovering>();
+}
+
 void PG::RecoveryState::RepRecovering::exit()
 {
   context< RecoveryMachine >().log_exit(state_name, enter_time);
diff --git a/src/osd/PG.h b/src/osd/PG.h
index 60c13fc1407..684266558c7 100644
--- a/src/osd/PG.h
+++ b/src/osd/PG.h
@@ -1178,6 +1178,7 @@ public:
   TrivialEvent(RequestBackfill)
   TrivialEvent(RequestRecovery)
   TrivialEvent(RecoveryDone)
+  TrivialEvent(BackfillTooFull)
 
   TrivialEvent(AllReplicasRecovered)
   TrivialEvent(DoRecovery)
@@ -1528,9 +1529,11 @@ public:
 
     struct RepRecovering : boost::statechart::state< RepRecovering, ReplicaActive >, NamedState {
       typedef boost::mpl::list<
-	boost::statechart::transition< RecoveryDone, RepNotRecovering >
+	boost::statechart::transition< RecoveryDone, RepNotRecovering >,
+	boost::statechart::custom_reaction< BackfillTooFull >
 	> reactions;
       RepRecovering(my_context ctx);
+      boost::statechart::result react(const BackfillTooFull &evt);
       void exit();
     };