From bfef269358716de18c7beab08b22c15e3654c5f7 Mon Sep 17 00:00:00 2001
From: "Niall Douglas (s [underscore] sourceforge {at} nedprod [dot] com)"
 <spamtrap@nedprod.com>
Date: Tue, 11 May 2021 15:17:34 +0100
Subject: Fix an earlier fix to algorithm::traverse, where the earlier fix was
 obviously broken.

---
 include/llfio/v2.0/detail/impl/traverse.ipp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/llfio/v2.0/detail/impl/traverse.ipp b/include/llfio/v2.0/detail/impl/traverse.ipp
index 190bcd08..7c4be156 100644
--- a/include/llfio/v2.0/detail/impl/traverse.ipp
+++ b/include/llfio/v2.0/detail/impl/traverse.ipp
@@ -415,11 +415,11 @@ namespace algorithm
                     state.threads_sleeping++;
                     maincond.notify_all();
                     cond.wait(g);
+                    state.threads_sleeping--;
                     if(done)
                     {
                       break;
                     }
-                    state.threads_sleeping--;
                   }
                   else
                   {
@@ -441,6 +441,7 @@ namespace algorithm
                     break;
                   }
                 }
+                state.threads_sleeping++;
                 state.threads_running--;
                 maincond.notify_all();
               },
@@ -449,7 +450,7 @@ namespace algorithm
           }
           {
             std::unique_lock<std::mutex> g(state.lock);
-            while(state.threads_sleeping < threads)
+            while(state.threads_sleeping < threads && !done)
             {
               maincond.wait(g);
             }
-- 
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