From e0a0f2dc6cd6e46e7864569adf7952b577d5b87c Mon Sep 17 00:00:00 2001
From: John Coyle <dx9err@gmail.com>
Date: Tue, 9 Aug 2016 13:57:42 -0400
Subject: [PATCH] bluestore/BitAllocator: Fix deadlock with musl libc

pthread_rwlock_wrlock() behaviour is undefined when calling thread holds lock. Added unlock() in shutdown() to avoid deadlock in destructor.

http://pubs.opengroup.org/onlinepubs/7908799/xsh/pthread_rwlock_wrlock.html

Signed-off-by: John Coyle <dx9err@gmail.com>
---
 src/os/bluestore/BitAllocator.cc | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/os/bluestore/BitAllocator.cc b/src/os/bluestore/BitAllocator.cc
index 0c239efd244d..c03f84be5ec9 100644
--- a/src/os/bluestore/BitAllocator.cc
+++ b/src/os/bluestore/BitAllocator.cc
@@ -1313,6 +1313,7 @@ BitAllocator::shutdown()
 {
   lock_excl();
   serial_lock();
+  unlock();
 }
 
 void BitAllocator::unreserve_blocks(int64_t unused)
-- 
2.47.3