From 123eb04136e675b529d471afa777fcc0dcaeb899 Mon Sep 17 00:00:00 2001
From: Avi Kivity <avi@scylladb.com>
Date: Tue, 29 Dec 2015 13:25:16 +0200
Subject: [PATCH] lsa: disable constant_time_size in binomial_heap
 implementation

Corrupts heap on boost < 1.60, and not needed.

Fixes #698.
---
 utils/logalloc.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/utils/logalloc.cc b/utils/logalloc.cc
index 49fe5560a8..f0ddf8a19a 100644
--- a/utils/logalloc.cc
+++ b/utils/logalloc.cc
@@ -158,7 +158,9 @@ thread_local T* prepared_buffers_allocator<T>::_prepared_buffer;
 // Consider using an intrusive container leveraging segment_descriptor objects.
 using segment_heap = boost::heap::binomial_heap<
     segment*, boost::heap::compare<segment_occupancy_descending_less_compare>,
-    boost::heap::allocator<prepared_buffers_allocator<segment*>>>;
+    boost::heap::allocator<prepared_buffers_allocator<segment*>>,
+    // constant_time_size<true> causes corruption with boost < 1.60
+    boost::heap::constant_time_size<false>>;
 using segment_heap_allocator = segment_heap::allocator_type;
 
 struct segment {