From: Samuel Just <sam.just@inktank.com>
Date: Sat, 26 Oct 2013 00:58:31 +0000 (-0700)
Subject: PG,ReplicatedPG: remove the waiting_for_backfill_peer mechanism
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=7406f72f42b81efba692d53b3334b19b9b9abb93;p=ceph.git

PG,ReplicatedPG: remove the waiting_for_backfill_peer mechanism

See previous patch.

Signed-off-by: Samuel Just <sam.just@inktank.com>
(cherry picked from commit 6f975e35a1e29a01347e4a6709b54a0422e063dd)

The referenced previous patch is actually irrelevant to this backport.

Conflicts:
	src/osd/ReplicatedPG.cc
---

diff --git a/src/osd/PG.h b/src/osd/PG.h
index d7c06dd42bf..a5cc3fc78bf 100644
--- a/src/osd/PG.h
+++ b/src/osd/PG.h
@@ -529,7 +529,6 @@ protected:
   bool flushed;
 
   // Ops waiting on backfill_pos to change
-  list<OpRequestRef> waiting_for_backfill_pos;
   list<OpRequestRef>            waiting_for_active;
   list<OpRequestRef>            waiting_for_all_missing;
   map<hobject_t, list<OpRequestRef> > waiting_for_missing_object,
diff --git a/src/osd/ReplicatedPG.cc b/src/osd/ReplicatedPG.cc
index ee6aa0dbcaf..5a07cfa02d3 100644
--- a/src/osd/ReplicatedPG.cc
+++ b/src/osd/ReplicatedPG.cc
@@ -186,16 +186,6 @@ void ReplicatedPG::wait_for_degraded_object(const hobject_t& soid, OpRequestRef
   op->mark_delayed("waiting for degraded object");
 }
 
-void ReplicatedPG::wait_for_backfill_pos(OpRequestRef op)
-{
-  waiting_for_backfill_pos.push_back(op);
-}
-
-void ReplicatedPG::release_waiting_for_backfill_pos()
-{
-  requeue_ops(waiting_for_backfill_pos);
-}
-
 bool PGLSParentFilter::filter(bufferlist& xattr_data, bufferlist& outdata)
 {
   bufferlist::iterator iter = xattr_data.begin();
@@ -694,11 +684,6 @@ void ReplicatedPG::do_op(OpRequestRef op)
     return;
   }
 
-  if (head == backfill_pos) {
-    wait_for_backfill_pos(op);
-    return;
-  }
-
   // missing snapdir?
   hobject_t snapdir(m->get_oid(), m->get_object_locator().key,
 		    CEPH_SNAPDIR, m->get_pg().ps(), info.pgid.pool(),
@@ -1348,7 +1333,6 @@ void ReplicatedPG::do_scan(
 
       backfill_pos = backfill_info.begin > peer_backfill_info.begin ?
 	peer_backfill_info.begin : backfill_info.begin;
-      release_waiting_for_backfill_pos();
       dout(10) << " backfill_pos now " << backfill_pos << dendl;
 
       assert(waiting_on_backfill);
@@ -6785,7 +6769,6 @@ void ReplicatedPG::on_change(ObjectStore::Transaction *t)
   context_registry_on_change();
 
   // requeue object waiters
-  requeue_ops(waiting_for_backfill_pos);
   requeue_object_waiters(waiting_for_missing_object);
   for (map<hobject_t,list<OpRequestRef> >::iterator p = waiting_for_degraded_object.begin();
        p != waiting_for_degraded_object.end();
@@ -7480,7 +7463,6 @@ int ReplicatedPG::recover_backfill(
   }
   send_pushes(g_conf->osd_recovery_op_priority, pushes);
 
-  release_waiting_for_backfill_pos();
   dout(5) << "backfill_pos is " << backfill_pos << " and pinfo.last_backfill is "
 	  << pinfo.last_backfill << dendl;
   for (set<hobject_t>::iterator i = backfills_in_flight.begin();
diff --git a/src/osd/ReplicatedPG.h b/src/osd/ReplicatedPG.h
index 093f4f8660e..98b3b15a730 100644
--- a/src/osd/ReplicatedPG.h
+++ b/src/osd/ReplicatedPG.h
@@ -1054,8 +1054,6 @@ public:
   bool is_missing_object(const hobject_t& oid);
   void wait_for_missing_object(const hobject_t& oid, OpRequestRef op);
   void wait_for_all_missing(OpRequestRef op);
-  void wait_for_backfill_pos(OpRequestRef op);
-  void release_waiting_for_backfill_pos();
 
   bool is_degraded_object(const hobject_t& oid);
   void wait_for_degraded_object(const hobject_t& oid, OpRequestRef op);