Commit-ID: 1242bd372213369ce5894872b70e4baf8002aed5
Gitweb: http://git.kernel.org/tip/1242bd372213369ce5894872b70e4baf8002aed5
Author: Pekka Enberg <penberg@xxxxxxxxxx>
AuthorDate: Thu, 26 May 2011 18:59:59 +0300
Committer: Pekka Enberg <penberg@xxxxxxxxxx>
CommitDate: Thu, 26 May 2011 18:59:59 +0300
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@xxxxxxxxxx>
---
tools/kvm/ioport.c | 14 ++++++++------
1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/tools/kvm/ioport.c b/tools/kvm/ioport.c
index 492ce16..d0a1aa8 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;
}
--
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