From 4b073f1395f0d210a47f863f2c7e67db60674cab Mon Sep 17 00:00:00 2001 From: Pekka Enberg Date: Thu, 26 May 2011 18:59:59 +0300 Subject: [PATCH] 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 --- ioport.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/ioport.c b/ioport.c index 492ce16..d0a1aa8 100644 --- a/ioport.c +++ b/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; }