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uml: remove code made redundant by CHOOSE_MODE removal

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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>
This commit is contained in:
Jeff Dike
2007-10-16 01:26:58 -07:00
committed by Linus Torvalds
parent ae2587e412
commit 77bf440031
63 changed files with 510 additions and 810 deletions
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20
arch/um/kernel/exec.c
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@@ -18,17 +18,31 @@
#include "irq_user.h"
#include "tlb.h"
#include "os.h"
#include "mode_kern.h"
#include "skas/skas.h"
void flush_thread(void)
{
void *data = NULL;
unsigned long end = proc_mm ? task_size : CONFIG_STUB_START;
int ret;
arch_flush_thread(&current->thread.arch);
flush_thread_skas();
ret = unmap(&current->mm->context.skas.id, 0, end, 1, &data);
if(ret){
printk("flush_thread - clearing address space failed, "
"err = %d\n", ret);
force_sig(SIGKILL, current);
}
__switch_mm(&current->mm->context.skas.id);
}
void start_thread(struct pt_regs *regs, unsigned long eip, unsigned long esp)
{
start_thread_skas(regs, eip, esp);
set_fs(USER_DS);
PT_REGS_IP(regs) = eip;
PT_REGS_SP(regs) = esp;
}
#ifdef CONFIG_TTY_LOG