From a0a331aad99bbca5a13fa4b69593061f29dc3a29 Mon Sep 17 00:00:00 2001
From: rsc <devnull@localhost>
Date: Thu, 6 Jan 2005 23:43:42 +0000
Subject: add _procwakeupandunlock to help ease locking contention on Linux
 2.4.

---
 src/libthread/thread.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'src/libthread/thread.c')

diff --git a/src/libthread/thread.c b/src/libthread/thread.c
index ee73f752..8a028aa4 100644
--- a/src/libthread/thread.c
+++ b/src/libthread/thread.c
@@ -166,11 +166,13 @@ _threadready(_Thread *t)
 
 	p = t->proc;
 	lock(&p->lock);
+	p->runrend.l = &p->lock;
 	addthread(&p->runqueue, t);
 //print("%d wake for job %d->%d\n", time(0), getpid(), p->osprocid);
 	if(p != proc())
-		_procwakeup(&p->runrend);
-	unlock(&p->lock);
+		_procwakeupandunlock(&p->runrend);
+	else
+		unlock(&p->lock);
 }
 
 int
-- 
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