From e92cbde5300bc8e2feadf96398b79f4621de8741 Mon Sep 17 00:00:00 2001
From: Sage Weil <sage@redhat.com>
Date: Thu, 14 Jan 2016 09:18:24 -0500
Subject: [PATCH] os/bluestore/FreelistManager: fix _dump locking

Signed-off-by: Sage Weil <sage@redhat.com>
---
 src/os/bluestore/FreelistManager.cc | 11 ++++++++---
 src/os/bluestore/FreelistManager.h  |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/os/bluestore/FreelistManager.cc b/src/os/bluestore/FreelistManager.cc
index eb937a01ac0b..eaf011f59117 100644
--- a/src/os/bluestore/FreelistManager.cc
+++ b/src/os/bluestore/FreelistManager.cc
@@ -78,6 +78,11 @@ void FreelistManager::shutdown()
 void FreelistManager::dump()
 {
   Mutex::Locker l(lock);
+  _dump();
+}
+
+void FreelistManager::_dump()
+{
   dout(30) << __func__ << " " << total_free
 	   << " in " << kv_free.size() << " extents" << dendl;
   for (auto p = kv_free.begin();
@@ -121,7 +126,7 @@ int FreelistManager::allocate(
     if (p != kv_free.end()) {
       derr << " existing extent " << p->first << "~" << p->second << dendl;
     }
-    dump();
+    _dump();
     assert(0 == "bad allocate");
   }
 
@@ -199,7 +204,7 @@ int FreelistManager::release(
     } else if (p->first + p->second > offset) {
       derr << __func__ << " bad release " << offset << "~" << length
 	   << " overlaps with " << p->first << "~" << p->second << dendl;
-      dump();
+      _dump();
       assert(0 == "bad release overlap");
     } else {
       dout(30) << __func__ << " previous extent " << p->first << "~" << p->second
@@ -221,7 +226,7 @@ int FreelistManager::release(
     } else if (p->first < offset + length) {
       derr << __func__ << " bad release " << offset << "~" << length
 	   << " overlaps with " << p->first << "~" << p->second << dendl;
-      dump();
+      _dump();
       assert(0 == "bad release overlap");
     } else {
       dout(30) << __func__ << " next extent " << p->first << "~" << p->second
diff --git a/src/os/bluestore/FreelistManager.h b/src/os/bluestore/FreelistManager.h
index 7993a510e760..a7c1330c3200 100644
--- a/src/os/bluestore/FreelistManager.h
+++ b/src/os/bluestore/FreelistManager.h
@@ -18,6 +18,7 @@ class FreelistManager {
   std::map<uint64_t, uint64_t> kv_free;    ///< mirrors our kv values in the db
 
   void _audit();
+  void _dump();
 
 public:
   FreelistManager() :
-- 
2.47.3