Merge /spare/repo/linux-2.6/

1 files changed, 0 insertions, 42 deletions

diff --git a/arch/ia64/lib/dec_and_lock.c b/arch/ia64/lib/dec_and_lock.c
deleted file mode 100644
index c7ce92f..0000000
--- a/arch/ia64/lib/dec_and_lock.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * Copyright (C) 2003 Jerome Marchand, Bull S.A.
- *	Cleaned up by David Mosberger-Tang <davidm@hpl.hp.com>
- *
- * This file is released under the GPLv2, or at your option any later version.
- *
- * ia64 version of "atomic_dec_and_lock()" using the atomic "cmpxchg" instruction.  This
- * code is an adaptation of the x86 version of "atomic_dec_and_lock()".
- */
-
-#include <linux/compiler.h>
-#include <linux/module.h>
-#include <linux/spinlock.h>
-#include <asm/atomic.h>
-
-/*
- * Decrement REFCOUNT and if the count reaches zero, acquire the spinlock.  Both of these
- * operations have to be done atomically, so that the count doesn't drop to zero without
- * acquiring the spinlock first.
- */
-int
-_atomic_dec_and_lock (atomic_t *refcount, spinlock_t *lock)
-{
-	int old, new;
-
-	do {
-		old = atomic_read(refcount);
-		new = old - 1;
-
-		if (unlikely (old == 1)) {
-			/* oops, we may be decrementing to zero, do it the slow way... */
-			spin_lock(lock);
-			if (atomic_dec_and_test(refcount))
-				return 1;
-			spin_unlock(lock);
-			return 0;
-		}
-	} while (cmpxchg(&refcount->counter, old, new) != old);
-	return 0;
-}
-
-EXPORT_SYMBOL(_atomic_dec_and_lock);