1 files changed, 9 insertions, 6 deletions

diff --git a/include/asm-um/processor-generic.h b/include/asm-um/processor-generic.h
index 038ba6fc88b8..b2fc94fbc2d9 100644
--- a/include/asm-um/processor-generic.h
+++ b/include/asm-um/processor-generic.h
@@ -17,12 +17,13 @@ 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;
-        unsigned long cr2;
-        int err;
-        unsigned long trap_no;
         int singlestep_syscall;
         void *fault_addr;
         void *fault_catcher;
@@ -70,8 +71,6 @@ struct thread_struct {
         .forking                = 0, \
         .nsyscalls              = 0, \
         .regs                   = EMPTY_REGS, \
-        .cr2                    = 0, \
-        .err                    = 0, \
         .fault_addr             = NULL, \
         .prev_sched             = NULL, \
         .temp_stack             = 0, \
@@ -89,7 +88,11 @@ 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);