From: John Spray <john.spray@redhat.com>
Date: Tue, 16 Dec 2014 20:48:45 +0000 (+0000)
Subject: osdc: add public Objecter::osdmap_full_flag
X-Git-Tag: v0.91~47^2~10
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=09287fd666a5225b1b53ffef29ab6428d547bb48;p=ceph.git

osdc: add public Objecter::osdmap_full_flag

For the (now numerous) places where callers
would like to check this without doing a verbose
lock/unlock cycle.

Signed-off-by: John Spray <john.spray@redhat.com>
---

diff --git a/src/osdc/Objecter.cc b/src/osdc/Objecter.cc
index 3d813eef8f74..2647b83059c9 100644
--- a/src/osdc/Objecter.cc
+++ b/src/osdc/Objecter.cc
@@ -737,7 +737,7 @@ void Objecter::handle_osd_map(MOSDMap *m)
   }
 
   bool was_pauserd = osdmap->test_flag(CEPH_OSDMAP_PAUSERD);
-  bool was_full = osdmap_full_flag();
+  bool was_full = _osdmap_full_flag();
   bool was_pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) || was_full;
 
   list<LingerOp*> need_resend_linger;
@@ -790,7 +790,7 @@ void Objecter::handle_osd_map(MOSDMap *m)
 	}
 	logger->set(l_osdc_map_epoch, osdmap->get_epoch());
 
-	was_full = was_full || osdmap_full_flag();
+	was_full = was_full || _osdmap_full_flag();
 	_scan_requests(homeless_session, skipped_map, was_full,
 		       need_resend, need_resend_linger,
 		       need_resend_command);
@@ -839,7 +839,7 @@ void Objecter::handle_osd_map(MOSDMap *m)
   }
 
   bool pauserd = osdmap->test_flag(CEPH_OSDMAP_PAUSERD);
-  bool pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) || osdmap_full_flag();
+  bool pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) || _osdmap_full_flag();
 
   // was/is paused?
   if (was_pauserd || was_pausewr || pauserd || pausewr || osdmap->get_epoch() < epoch_barrier) {
@@ -1429,7 +1429,7 @@ void Objecter::_maybe_request_map()
 {
   assert(rwlock.is_locked());
   int flag = 0;
-  if (osdmap_full_flag()
+  if (_osdmap_full_flag()
       || osdmap->test_flag(CEPH_OSDMAP_PAUSERD)
       || osdmap->test_flag(CEPH_OSDMAP_PAUSEWR)) {
     ldout(cct, 10) << "_maybe_request_map subscribing (continuous) to next osd map (FULL flag is set)" << dendl;
@@ -1844,7 +1844,7 @@ ceph_tid_t Objecter::_op_submit(Op *op, RWLock::Context& lc)
     ldout(cct, 10) << " paused read " << op << " tid " << last_tid.read() << dendl;
     op->target.paused = true;
     _maybe_request_map();
-  } else if ((op->target.flags & CEPH_OSD_FLAG_WRITE) && osdmap_full_flag()) {
+  } else if ((op->target.flags & CEPH_OSD_FLAG_WRITE) && _osdmap_full_flag()) {
     ldout(cct, 0) << " FULL, paused modify " << op << " tid " << last_tid.read() << dendl;
     op->target.paused = true;
     _maybe_request_map();
@@ -2033,18 +2033,27 @@ bool Objecter::is_pg_changed(
 bool Objecter::target_should_be_paused(op_target_t *t)
 {
   bool pauserd = osdmap->test_flag(CEPH_OSDMAP_PAUSERD);
-  bool pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) || osdmap_full_flag();
+  bool pausewr = osdmap->test_flag(CEPH_OSDMAP_PAUSEWR) || _osdmap_full_flag();
 
   return (t->flags & CEPH_OSD_FLAG_READ && pauserd) ||
          (t->flags & CEPH_OSD_FLAG_WRITE && pausewr) ||
          (osdmap->get_epoch() < epoch_barrier);
 }
 
+/**
+ * Locking public accessor for _osdmap_full_flag
+ */
+bool Objecter::osdmap_full_flag() const
+{
+  RWLock::RLocker rl(rwlock);
+
+  return _osdmap_full_flag();
+}
 
 /**
  * Wrapper around osdmap->test_flag for special handling of the FULL flag.
  */
-bool Objecter::osdmap_full_flag() const
+bool Objecter::_osdmap_full_flag() const
 {
   // Ignore the FULL flag if the caller has honor_osdmap_full
   return osdmap->test_flag(CEPH_OSDMAP_FULL) && honor_osdmap_full;
diff --git a/src/osdc/Objecter.h b/src/osdc/Objecter.h
index d74261a5e756..2af6abb96ef1 100644
--- a/src/osdc/Objecter.h
+++ b/src/osdc/Objecter.h
@@ -1560,6 +1560,7 @@ public:
   };
   map<int,OSDSession*> osd_sessions;
 
+  bool osdmap_full_flag() const;
 
  private:
   map<uint64_t, LingerOp*>  linger_ops;
@@ -1599,7 +1600,7 @@ public:
     RECALC_OP_TARGET_OSD_DNE,
     RECALC_OP_TARGET_OSD_DOWN,
   };
-  bool osdmap_full_flag() const;
+  bool _osdmap_full_flag() const;
 
   bool target_should_be_paused(op_target_t *op);
   int _calc_target(op_target_t *t, bool any_change=false);