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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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7
arch/um/sys-i386/ldt.c
View File

@ -13,7 +13,6 @@
#include "asm/ldt.h"
#include "asm/unistd.h"
#include "kern.h"
#include "mode_kern.h"
#include "os.h"
extern int modify_ldt(int func, void *ptr, unsigned long bytecount);
@ -33,7 +32,7 @@ long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc,
* modify isn't current->active_mm.
* If this is called directly by modify_ldt,
* (current->active_mm->context.skas.u == mm_idp)
* will be true. So no call to switch_mm_skas(mm_idp) is done.
* will be true. So no call to __switch_mm(mm_idp) is done.
* If this is called in case of init_new_ldt or PTRACE_LDT,
* mm_idp won't belong to current->active_mm, but child->mm.
* So we need to switch child's mm into our userspace, then
@ -43,7 +42,7 @@ long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc,
*/
if(!current->active_mm || current->active_mm == &init_mm ||
mm_idp != &current->active_mm->context.skas.id)
switch_mm_skas(mm_idp);
__switch_mm(mm_idp);
}
if(ptrace_ldt) {
@ -88,7 +87,7 @@ long write_ldt_entry(struct mm_id * mm_idp, int func, struct user_desc * desc,
*/
if(current->active_mm && current->active_mm != &init_mm &&
mm_idp != &current->active_mm->context.skas.id)
switch_mm_skas(&current->active_mm->context.skas.id);
__switch_mm(&current->active_mm->context.skas.id);
}
return res;