1 files changed, 0 insertions, 81 deletions
diff --git a/include/linux/lglock.h b/include/linux/lglock.h
deleted file mode 100644
index c92ebd100d9b..000000000000
--- a/include/linux/lglock.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * Specialised local-global spinlock. Can only be declared as global variables
- * to avoid overhead and keep things simple (and we don't want to start using
- * these inside dynamically allocated structures).
- *
- * "local/global locks" (lglocks) can be used to:
- *
- * - Provide fast exclusive access to per-CPU data, with exclusive access to
- *   another CPU's data allowed but possibly subject to contention, and to
- *   provide very slow exclusive access to all per-CPU data.
- * - Or to provide very fast and scalable read serialisation, and to provide
- *   very slow exclusive serialisation of data (not necessarily per-CPU data).
- *
- * Brlocks are also implemented as a short-hand notation for the latter use
- * case.
- *
- * Copyright 2009, 2010, Nick Piggin, Novell Inc.
- */
-#ifndef __LINUX_LGLOCK_H
-#define __LINUX_LGLOCK_H
-
-#include <linux/spinlock.h>
-#include <linux/lockdep.h>
-#include <linux/percpu.h>
-#include <linux/cpu.h>
-#include <linux/notifier.h>
-
-#ifdef CONFIG_SMP
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-#define LOCKDEP_INIT_MAP lockdep_init_map
-#else
-#define LOCKDEP_INIT_MAP(a, b, c, d)
-#endif
-
-struct lglock {
-	arch_spinlock_t __percpu *lock;
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	struct lock_class_key lock_key;
-	struct lockdep_map    lock_dep_map;
-#endif
-};
-
-#define DEFINE_LGLOCK(name)						\
-	static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock)		\
-	= __ARCH_SPIN_LOCK_UNLOCKED;					\
-	struct lglock name = { .lock = &name ## _lock }
-
-#define DEFINE_STATIC_LGLOCK(name)					\
-	static DEFINE_PER_CPU(arch_spinlock_t, name ## _lock)		\
-	= __ARCH_SPIN_LOCK_UNLOCKED;					\
-	static struct lglock name = { .lock = &name ## _lock }
-
-void lg_lock_init(struct lglock *lg, char *name);
-
-void lg_local_lock(struct lglock *lg);
-void lg_local_unlock(struct lglock *lg);
-void lg_local_lock_cpu(struct lglock *lg, int cpu);
-void lg_local_unlock_cpu(struct lglock *lg, int cpu);
-
-void lg_double_lock(struct lglock *lg, int cpu1, int cpu2);
-void lg_double_unlock(struct lglock *lg, int cpu1, int cpu2);
-
-void lg_global_lock(struct lglock *lg);
-void lg_global_unlock(struct lglock *lg);
-
-#else
-/* When !CONFIG_SMP, map lglock to spinlock */
-#define lglock spinlock
-#define DEFINE_LGLOCK(name) DEFINE_SPINLOCK(name)
-#define DEFINE_STATIC_LGLOCK(name) static DEFINE_SPINLOCK(name)
-#define lg_lock_init(lg, name) spin_lock_init(lg)
-#define lg_local_lock spin_lock
-#define lg_local_unlock spin_unlock
-#define lg_local_lock_cpu(lg, cpu) spin_lock(lg)
-#define lg_local_unlock_cpu(lg, cpu) spin_unlock(lg)
-#define lg_global_lock spin_lock
-#define lg_global_unlock spin_unlock
-#endif
-
-#endif