1 files changed, 9 insertions, 1 deletions

diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h
index 038ba6fc88b8..b953b1ad3b02 100644
--- a/include/asm-um/processor-generic.h
+++ b/include/asm-um/processor-generic.h
@@ -17,6 +17,10 @@ struct task_struct;
 struct mm_struct;
 
 struct thread_struct {
+        /* This flag is set to 1 before calling do_fork (and analyzed in
+         * copy_thread) to mark that we are begin called from userspace (fork /
+         * vfork / clone), and reset to 0 after. It is left to 0 when called
+         * from kernelspace (i.e. kernel_thread() or fork_idle(), as of 2.6.11). */
         int forking;
         int nsyscalls;
         struct pt_regs regs;
@@ -89,7 +93,11 @@ extern struct task_struct *alloc_task_struct(void);
 extern void release_thread(struct task_struct *);
 extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
 extern void dump_thread(struct pt_regs *regs, struct user *u);
-extern void prepare_to_copy(struct task_struct *tsk);
+
+static inline void prepare_to_copy(struct task_struct *tsk)
+{
+}
+
 
 extern unsigned long thread_saved_pc(struct task_struct *t);