X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=arch%2Fx86_64%2Flib%2Fthunk.S;h=55e586d352d3c444d35fe7399726666ba94b9adf;hb=81450b73dde07f473a4a7208b209b4c8b7251d90;hp=332ea5dff9169627475dbc90f54b4ced9c36d179;hpb=6fa0cb1141da80eed4f86155fb51931bc1c31888;p=~andy%2Flinux

diff --git a/arch/x86_64/lib/thunk.S b/arch/x86_64/lib/thunk.S
index 332ea5dff91..55e586d352d 100644
--- a/arch/x86_64/lib/thunk.S
+++ b/arch/x86_64/lib/thunk.S
@@ -1,12 +1,10 @@
-	/*
-	 * Save registers before calling assembly functions. This avoids
-	 * disturbance of register allocation in some inline assembly constructs.
-	 * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
-	 * Subject to the GNU public license, v.2. No warranty of any kind.
-	 * $Id: thunk.S,v 1.2 2002/03/13 20:06:58 ak Exp $
-	 */
+/*
+ * Save registers before calling assembly functions. This avoids
+ * disturbance of register allocation in some inline assembly constructs.
+ * Copyright 2001,2002 by Andi Kleen, SuSE Labs.
+ * Subject to the GNU public license, v.2. No warranty of any kind.
+ */
 
-	#include <linux/config.h>
 	#include <linux/linkage.h>
 	#include <asm/dwarf2.h>
 	#include <asm/calling.h>			
@@ -67,33 +65,3 @@ restore_norax:
 	RESTORE_ARGS 1
 	ret
 	CFI_ENDPROC
-
-#ifdef CONFIG_SMP
-/* Support for read/write spinlocks. */
-	.text
-/* rax:	pointer to rwlock_t */	
-ENTRY(__write_lock_failed)
-	lock
-	addl $RW_LOCK_BIAS,(%rax)
-1:	rep
-	nop
-	cmpl $RW_LOCK_BIAS,(%rax)
-	jne 1b
-	lock 
-	subl $RW_LOCK_BIAS,(%rax)
-	jnz  __write_lock_failed
-	ret
-
-/* rax:	pointer to rwlock_t */	
-ENTRY(__read_lock_failed)
-	lock
-	incl (%rax)
-1:	rep
-	nop
-	cmpl $1,(%rax)
-	js 1b
-	lock
-	decl (%rax)
-	js __read_lock_failed
-	ret
-#endif