4 files changed, 31 insertions, 13 deletions

diff --git a/arch/um/kernel/exec_kern.c b/arch/um/kernel/exec_kern.c
index f9b346e05b007..c0cb627bf594b 100644
--- a/arch/um/kernel/exec_kern.c
+++ b/arch/um/kernel/exec_kern.c
@@ -22,6 +22,7 @@
 
 void flush_thread(void)
 {
+	arch_flush_thread(&current->thread.arch);
 	CHOOSE_MODE(flush_thread_tt(), flush_thread_skas());
 }
 
@@ -74,14 +75,3 @@ long sys_execve(char __user *file, char __user *__user *argv,
 	unlock_kernel();
 	return(error);
 }
-
-/*
- * 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:
- */
diff --git a/arch/um/kernel/process_kern.c b/arch/um/kernel/process_kern.c
index ba8a52c1f7aec..f6a5a502120be 100644
--- a/arch/um/kernel/process_kern.c
+++ b/arch/um/kernel/process_kern.c
@@ -156,9 +156,25 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long sp,
 		unsigned long stack_top, struct task_struct * p, 
 		struct pt_regs *regs)
 {
+	int ret;
+
 	p->thread = (struct thread_struct) INIT_THREAD;
-	return(CHOOSE_MODE_PROC(copy_thread_tt, copy_thread_skas, nr, 
-				clone_flags, sp, stack_top, p, regs));
+	ret = CHOOSE_MODE_PROC(copy_thread_tt, copy_thread_skas, nr,
+				clone_flags, sp, stack_top, p, regs);
+
+	if (ret || !current->thread.forking)
+		goto out;
+
+	clear_flushed_tls(p);
+
+	/*
+	 * Set a new TLS for the child thread?
+	 */
+	if (clone_flags & CLONE_SETTLS)
+		ret = arch_copy_tls(p);
+
+out:
+	return ret;
 }
 
 void initial_thread_cb(void (*proc)(void *), void *arg)
diff --git a/arch/um/kernel/ptrace.c b/arch/um/kernel/ptrace.c
index 394582202ce62..60d2eda995c17 100644
--- a/arch/um/kernel/ptrace.c
+++ b/arch/um/kernel/ptrace.c
@@ -185,6 +185,16 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		ret = set_fpxregs(data, child);
 		break;
 #endif
+	case PTRACE_GET_THREAD_AREA:
+		ret = ptrace_get_thread_area(child, addr,
+					     (struct user_desc __user *) data);
+		break;
+
+	case PTRACE_SET_THREAD_AREA:
+		ret = ptrace_set_thread_area(child, addr,
+					     (struct user_desc __user *) data);
+		break;
+
 	case PTRACE_FAULTINFO: {
 		/* Take the info from thread->arch->faultinfo,
 		 * but transfer max. sizeof(struct ptrace_faultinfo).
diff --git a/arch/um/kernel/skas/process_kern.c b/arch/um/kernel/skas/process_kern.c
index 14360ac17f028..38b185370c422 100644
--- a/arch/um/kernel/skas/process_kern.c
+++ b/arch/um/kernel/skas/process_kern.c
@@ -111,6 +111,8 @@ int copy_thread_skas(int nr, unsigned long clone_flags, unsigned long sp,
 		if(sp != 0) REGS_SP(p->thread.regs.regs.skas.regs) = sp;
 
 		handler = fork_handler;
+
+		arch_copy_thread(&current->thread.arch, &p->thread.arch);
 	}
 	else {
 		init_thread_registers(&p->thread.regs.regs);