x86, um: untangle uml ldt.h

* turn asm/ldt.h into ldt.h; update the (very few) users
* take host_ldt.h into sysdep, kill symlink mess
* includes of asm/arch/ldt.h turn into asm/ldt.h now
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

arch/um/Makefile

@@ -20,7 +20,7 @@ core-y			+= $(ARCH_DIR)/kernel/		\
 
 # Have to precede the include because the included Makefiles reference them.
 SYMLINK_HEADERS := archparam.h system.h processor.h ptrace.h \
-	module.h vm-flags.h elf.h host_ldt.h
+	module.h vm-flags.h elf.h
 SYMLINK_HEADERS := $(foreach header,$(SYMLINK_HEADERS),$(ARCH_DIR)/include/asm/$(header))
 
 # XXX: The "os" symlink is only used by arch/um/include/os.h, which includes

arch/um/include/asm/processor-i386.h

@@ -7,7 +7,7 @@
 #define __UM_PROCESSOR_I386_H
 
 #include "linux/string.h"
-#include "asm/host_ldt.h"
+#include <sysdep/host_ldt.h>
 #include "asm/segment.h"
 
 extern int host_has_cmov;

arch/um/include/asm/ptrace-x86_64.h

@@ -9,7 +9,7 @@
 
 #include "linux/compiler.h"
 #include "asm/errno.h"
-#include "asm/host_ldt.h"
+#include <sysdep/host_ldt.h>
 
 #define __FRAME_OFFSETS /* Needed to get the R* macros */
 #include "asm/ptrace-generic.h"

arch/um/include/asm/ldt.h → arch/um/include/shared/ldt.h

@@ -9,7 +9,7 @@
 #define __ASM_LDT_H
 
 #include <linux/mutex.h>
-#include "asm/host_ldt.h"
+#include <sysdep/host_ldt.h>
 
 extern void ldt_host_info(void);
 

arch/um/include/asm/host_ldt-i386.h → arch/um/include/shared/sysdep-i386/host_ldt.h

 #ifndef __ASM_HOST_LDT_I386_H
 #define __ASM_HOST_LDT_I386_H
 
-#include "asm/arch/ldt.h"
+#include <asm/ldt.h>
 
 /*
  * macros stolen from include/asm-i386/desc.h

arch/um/include/shared/sysdep-i386/tls.h

@@ -21,7 +21,7 @@ typedef struct um_dup_user_desc {
 
 # else /* __KERNEL__ */
 
-#  include <asm/ldt.h>
+#  include <ldt.h>
 typedef struct user_desc user_desc_t;
 
 # endif /* __KERNEL__ */

arch/um/include/asm/host_ldt-x86_64.h → arch/um/include/shared/sysdep-x86_64/host_ldt.h

 #ifndef __ASM_HOST_LDT_X86_64_H
 #define __ASM_HOST_LDT_X86_64_H
 
-#include "asm/arch/ldt.h"
+#include <asm/ldt.h>
 
 /*
  * macros stolen from include/asm-x86_64/desc.h

arch/um/include/shared/sysdep-x86_64/tls.h

@@ -22,7 +22,7 @@ typedef struct um_dup_user_desc {
 
 # else /* __KERNEL__ */
 
-#  include <asm/ldt.h>
+#  include <ldt.h>
 typedef struct user_desc user_desc_t;
 
 # endif /* __KERNEL__ */

arch/um/include/shared/um_mmu.h

@@ -8,7 +8,7 @@
 
 #include "uml-config.h"
 #include "mm_id.h"
-#include "asm/ldt.h"
+#include "ldt.h"
 
 typedef struct mm_context {
 	struct mm_id id;