From: Pekka Enberg <penberg@kernel.org>
Date: Thu, 26 May 2011 15:59:59 +0000 (+0300)
Subject: kvm tools: Use more readable name for ioport mutex
X-Git-Tag: next-20110824~3^2~253
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=1242bd372213369ce5894872b70e4baf8002aed5;p=karo-tx-linux.git

kvm tools: Use more readable name for ioport mutex

This patch renames the mutex in iport.c to 'ioport_mutex' and documents which
data it is used to protect.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
---

diff --git a/tools/kvm/ioport.c b/tools/kvm/ioport.c
index 492ce1642ae1..d0a1aa8655f7 100644
--- a/tools/kvm/ioport.c
+++ b/tools/kvm/ioport.c
@@ -17,19 +17,21 @@
 
 #define ioport_node(n) rb_entry(n, struct ioport, node)
 
-static u16 free_io_port_idx;
-DEFINE_MUTEX(free_io_port_idx_lock);
-static struct rb_root ioport_tree = RB_ROOT;
-bool ioport_debug;
+DEFINE_MUTEX(ioport_mutex);
+
+static u16			free_io_port_idx; /* protected by ioport_mutex */
+
+static struct rb_root		ioport_tree = RB_ROOT;
+bool				ioport_debug;
 
 static u16 ioport__find_free_port(void)
 {
 	u16 free_port;
 
-	mutex_lock(&free_io_port_idx_lock);
+	mutex_lock(&ioport_mutex);
 	free_port = IOPORT_START + free_io_port_idx * IOPORT_SIZE;
 	free_io_port_idx++;
-	mutex_unlock(&free_io_port_idx_lock);
+	mutex_unlock(&ioport_mutex);
 
 	return free_port;
 }