+ lguest-preparation-export_symbol_gpl-5-functions.patch added to -mm tree

[akpm@linux-foundation.org]

The patch titled
     lguest preparation: EXPORT_SYMBOL_GPL 5 functions
has been added to the -mm tree.  Its filename is
     lguest-preparation-export_symbol_gpl-5-functions.patch

*** Remember to use Documentation/SubmitChecklist when testing your code ***

See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this

------------------------------------------------------
Subject: lguest preparation: EXPORT_SYMBOL_GPL 5 functions
From: Rusty Russell <rusty@rustcorp.com.au>

lguest does some fairly lowlevel things to support a host, which normal
modules don't need:

math_state_restore:
	When the guest triggers a Device Not Available fault, we need
	to be able to restore the FPU

__put_task_struct:
	We need to hold a reference to another task for inter-guest
	I/O, and put_task_struct() is an inline function which calls
	__put_task_struct.

access_process_vm:
	We need to access another task for inter-guest I/O.

map_vm_area & __get_vm_area:
	We need to map the switcher shim (ie. monitor) at 0xFFC01000.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 arch/i386/kernel/traps.c |    1 +
 kernel/fork.c            |    1 +
 mm/memory.c              |    1 +
 mm/vmalloc.c             |    2 ++
 4 files changed, 5 insertions(+)

diff -puN arch/i386/kernel/traps.c~lguest-preparation-export_symbol_gpl-5-functions arch/i386/kernel/traps.c
--- a/arch/i386/kernel/traps.c~lguest-preparation-export_symbol_gpl-5-functions
+++ a/arch/i386/kernel/traps.c
@@ -1056,6 +1056,7 @@ asmlinkage void math_state_restore(void)
 	thread->status |= TS_USEDFPU;	/* So we fnsave on switch_to() */
 	tsk->fpu_counter++;
 }
+EXPORT_SYMBOL_GPL(math_state_restore);
 
 #ifndef CONFIG_MATH_EMULATION
 
diff -puN kernel/fork.c~lguest-preparation-export_symbol_gpl-5-functions kernel/fork.c
--- a/kernel/fork.c~lguest-preparation-export_symbol_gpl-5-functions
+++ a/kernel/fork.c
@@ -126,6 +126,7 @@ void __put_task_struct(struct task_struc
 	if (!profile_handoff_task(tsk))
 		free_task(tsk);
 }
+EXPORT_SYMBOL_GPL(__put_task_struct);
 
 void __init fork_init(unsigned long mempages)
 {
diff -puN mm/memory.c~lguest-preparation-export_symbol_gpl-5-functions mm/memory.c
--- a/mm/memory.c~lguest-preparation-export_symbol_gpl-5-functions
+++ a/mm/memory.c
@@ -2736,3 +2736,4 @@ int access_process_vm(struct task_struct
 
 	return buf - old_buf;
 }
+EXPORT_SYMBOL_GPL(access_process_vm);
diff -puN mm/vmalloc.c~lguest-preparation-export_symbol_gpl-5-functions mm/vmalloc.c
--- a/mm/vmalloc.c~lguest-preparation-export_symbol_gpl-5-functions
+++ a/mm/vmalloc.c
@@ -159,6 +159,7 @@ int map_vm_area(struct vm_struct *area, 
 	flush_cache_vmap((unsigned long) area->addr, end);
 	return err;
 }
+EXPORT_SYMBOL_GPL(map_vm_area);
 
 static struct vm_struct *__get_vm_area_node(unsigned long size, unsigned long flags,
 					    unsigned long start, unsigned long end,
@@ -237,6 +238,7 @@ struct vm_struct *__get_vm_area(unsigned
 {
 	return __get_vm_area_node(size, flags, start, end, -1, GFP_KERNEL);
 }
+EXPORT_SYMBOL_GPL(__get_vm_area);
 
 /**
  *	get_vm_area  -  reserve a contingous kernel virtual area
_

Patches currently in -mm which might be from rusty@rustcorp.com.au are

origin.patch
cleanup-paravirt-unhandled-fallthrough.patch
cleanup-initialize-esp0-properly-all-the-time.patch
cleanup-make-hvc_consolec-compile-on-non-powerpc.patch
cleanup-move-mce_disabled-to-asm-mceh.patch
cleanup-rename-cpu_gdt_descr-and-remove-extern.patch
cleanup-remove-extern-declaration-from.patch
cleanup-make-disable_acpi-valid-w-o-config_acpi.patch
lguest-preparation-export_symbol_gpl-5-functions.patch
lguest-preparation-expose-futex-infrastructure.patch
lguest-kconfig-and-headers.patch
lguest-the-host-code-lgko.patch
lguest-guest-code.patch
lguest-makefile.patch
lguest-trivial-guest-network-driver.patch
lguest-trivial-guest-network-driver-fix.patch
lguest-trivial-guest-console-driver.patch
lguest-trivial-guest-block-driver.patch
lguest-documentatation-and-example-launcher.patch
vmi-versus-hrtimers.patch