uml: remove code made redundant by CHOOSE_MODE removal

This patch makes a number of simplifications enabled by the removal of
CHOOSE_MODE.  There were lots of functions that looked like

	int foo(args){
		foo_skas(args);
	}

The bodies of foo_skas are now folded into foo, and their declarations (and
sometimes entire header files) are deleted.

In addition, the union uml_pt_regs, which was a union between the tt and skas
register formats, is now a struct, with the tt-mode arm of the union being
removed.

It turns out that usr2_handler was unused, so it is gone.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 0 insertions, 40 deletions

diff --git a/arch/um/kernel/skas/exec.c b/arch/um/kernel/skas/exec.c
deleted file mode 100644
index 580eb646894..00000000000
--- a/arch/um/kernel/skas/exec.c
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * Copyright (C) 2002 Jeff Dike (jdike@karaya.com)
- * Licensed under the GPL
- */
-
-#include "linux/kernel.h"
-#include "asm/current.h"
-#include "asm/page.h"
-#include "asm/signal.h"
-#include "asm/ptrace.h"
-#include "asm/uaccess.h"
-#include "asm/mmu_context.h"
-#include "tlb.h"
-#include "skas.h"
-#include "um_mmu.h"
-#include "os.h"
-
-void flush_thread_skas(void)
-{
-	void *data = NULL;
-	unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
-	int ret;
-
-	ret = unmap(&current->mm->context.skas.id, 0, end, 1, &data);
-	if(ret){
-		printk("flush_thread_skas - clearing address space failed, "
-		       "err = %d\n", ret);
-		force_sig(SIGKILL, current);
-	}
-
-	switch_mm_skas(&current->mm->context.skas.id);
-}
-
-void start_thread_skas(struct pt_regs *regs, unsigned long eip,
-		       unsigned long esp)
-{
-	set_fs(USER_DS);
-	PT_REGS_IP(regs) = eip;
-	PT_REGS_SP(regs) = esp;
-}