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authorPaul Moore <pmoore@redhat.com>2014-01-23 21:52:06 +0100
committerPaul Moore <pmoore@redhat.com>2014-01-23 21:52:06 +0100
commit41be702a542a0d14bb0b1c16e824fa9ed27616ec (patch)
treee48942a05882da47544e179c6a0c920e00137a6a /kernel/locking/mutex.h
parentSELinux: Fix memory leak upon loading policy (diff)
parentLinux 3.13 (diff)
downloadlinux-41be702a542a0d14bb0b1c16e824fa9ed27616ec.tar.xz
linux-41be702a542a0d14bb0b1c16e824fa9ed27616ec.zip
Merge tag 'v3.13' into next
Linux 3.13 Minor fixup needed in selinux_inet_conn_request() Conflicts: security/selinux/hooks.c
Diffstat (limited to 'kernel/locking/mutex.h')
-rw-r--r--kernel/locking/mutex.h48
1 files changed, 48 insertions, 0 deletions
diff --git a/kernel/locking/mutex.h b/kernel/locking/mutex.h
new file mode 100644
index 000000000000..4115fbf83b12
--- /dev/null
+++ b/kernel/locking/mutex.h
@@ -0,0 +1,48 @@
+/*
+ * Mutexes: blocking mutual exclusion locks
+ *
+ * started by Ingo Molnar:
+ *
+ * Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *
+ * This file contains mutex debugging related internal prototypes, for the
+ * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs:
+ */
+
+#define spin_lock_mutex(lock, flags) \
+ do { spin_lock(lock); (void)(flags); } while (0)
+#define spin_unlock_mutex(lock, flags) \
+ do { spin_unlock(lock); (void)(flags); } while (0)
+#define mutex_remove_waiter(lock, waiter, ti) \
+ __list_del((waiter)->list.prev, (waiter)->list.next)
+
+#ifdef CONFIG_SMP
+static inline void mutex_set_owner(struct mutex *lock)
+{
+ lock->owner = current;
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+ lock->owner = NULL;
+}
+#else
+static inline void mutex_set_owner(struct mutex *lock)
+{
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+}
+#endif
+
+#define debug_mutex_wake_waiter(lock, waiter) do { } while (0)
+#define debug_mutex_free_waiter(waiter) do { } while (0)
+#define debug_mutex_add_waiter(lock, waiter, ti) do { } while (0)
+#define debug_mutex_unlock(lock) do { } while (0)
+#define debug_mutex_init(lock, name, key) do { } while (0)
+
+static inline void
+debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
+{
+}