* ipc/ipc_port.c (ipc_port_set_seqno) [MACH_SLOCKS]: Conditional locking.
=46rom d56b769755a5d671f084ebdd482de8b34be9cd5b Mon Sep 17 00:00:00 2001
From: Marin Ramesa <m...@hi.t-com.hr>
Date: Sat, 7 Sep 2013 07:37:42 +0200
Subject: [PATCH] perform conditional locking while changing the port sequence
number
---
ipc/ipc_port.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/ipc/ipc_port.c b/ipc/ipc_port.c
index b960739..19d1a9e 100644
--- a/ipc/ipc_port.c
+++ b/ipc/ipc_port.c
@@ -417,11 +417,17 @@ ipc_port_set_seqno(port, seqno)
ipc_port_t port;
mach_port_seqno_t seqno;
{
+ #if MACH_SLOCKS
ipc_mqueue_t mqueue;
mqueue = ipc_port_lock_mqueue(port);
+ #endif /* MACH_SLOCKS */
+
port->ip_seqno = seqno;
+
+ #if MACH_SLOCKS
imq_unlock(mqueue);
+ #endif /* MACH_SLOCKS */
}
/*
--
1.8.1.4
