uml: SMP locking commentary

[linux-2.6-omap-h63xx.git] / arch / um / kernel / init_task.c

diff --git a/arch/um/kernel/init_task.c b/arch/um/kernel/init_task.c
index cda91aa8e703162564c2163064ed7efe567649d1..dcfceca950523ce7b1e7ebba36994d2816d071ca 100644 (file)
--- a/arch/um/kernel/init_task.c
+++ b/arch/um/kernel/init_task.c
@@ -1,17 +1,14 @@
-/* 
- * Copyright (C) 2000 Jeff Dike (jdike@karaya.com)
+/*
+ * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,intel.linux}.com)
  * Licensed under the GPL
  */
 
-#include "linux/mm.h"
-#include "linux/module.h"
 #include "linux/sched.h"
 #include "linux/init_task.h"
+#include "linux/fs.h"
+#include "linux/module.h"
 #include "linux/mqueue.h"
 #include "asm/uaccess.h"
-#include "asm/pgtable.h"
-#include "mem_user.h"
-#include "os.h"
 
 static struct fs_struct init_fs = INIT_FS;
 struct mm_struct init_mm = INIT_MM(init_mm);
@@ -33,28 +30,15 @@ EXPORT_SYMBOL(init_task);
 /*
  * Initial thread structure.
  *
- * We need to make sure that this is 16384-byte aligned due to the
+ * We need to make sure that this is aligned due to the
  * way process stacks are handled. This is done by having a special
  * "init_task" linker map entry..
  */
 
-union thread_union init_thread_union 
-__attribute__((__section__(".data.init_task"))) = 
-{ INIT_THREAD_INFO(init_task) };
+union thread_union init_thread_union
+       __attribute__((__section__(".data.init_task"))) =
+               { INIT_THREAD_INFO(init_task) };
 
-void unprotect_stack(unsigned long stack)
-{
-       os_protect_memory((void *) stack, (1 << CONFIG_KERNEL_STACK_ORDER) * PAGE_SIZE,
-                      1, 1, 0);
-}
-
-/*
- * Overrides for Emacs so that we follow Linus's tabbing style.
- * Emacs will notice this stuff at the end of the file and automatically
- * adjust the settings for this buffer only.  This must remain at the end
- * of the file.
- * ---------------------------------------------------------------------------
- * Local variables:
- * c-file-style: "linux"
- * End:
- */
+union thread_union cpu0_irqstack
+       __attribute__((__section__(".data.init_irqstack"))) =
+               { INIT_THREAD_INFO(init_task) };