uml: more __init annotations

2.6.23-rc1 turned up another batch of references from non-__init code to
__init code.  In most cases, these were missing __init annotations.  In one
case (os_drop_memory), the annotation was present but wrong.

init_maps is __init, but for some reason was being very careful about the
mechanism by which it allocated memory, checking whether it was OK to use
kmalloc (at this point in the boot, it definitely isn't) and using either
alloc_bootmem_low_pages or kmalloc/vmalloc.  So, the kmalloc/vmalloc code is
removed.

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>
diff --git a/arch/um/kernel/skas/process.c b/arch/um/kernel/skas/process.c
index 2a69a7c..48051a9 100644
--- a/arch/um/kernel/skas/process.c
+++ b/arch/um/kernel/skas/process.c
@@ -145,7 +145,7 @@
 
 extern void start_kernel(void);
 
-static int start_kernel_proc(void *unused)
+static int __init start_kernel_proc(void *unused)
 {
 	int pid;
 
@@ -165,7 +165,7 @@
 
 extern char cpu0_irqstack[];
 
-int start_uml_skas(void)
+int __init start_uml_skas(void)
 {
 	stack_protections((unsigned long) &cpu0_irqstack);
 	set_sigstack(cpu0_irqstack, THREAD_SIZE);