x86: TLS cleanup

This consolidates the four different places that implemented the same
encoding magic for the GDT-slot 32-bit TLS support.  The old tls32.c was
renamed and is now only slightly modified to be the shared implementation.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Zachary Amsden <zach@vmware.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 9ea1d7546f80..ccc9d68d5a58 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -524,7 +524,8 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long rsp,
         if (clone_flags & CLONE_SETTLS) {
 #ifdef CONFIG_IA32_EMULATION
                 if (test_thread_flag(TIF_IA32))
-                        err = ia32_child_tls(p, childregs); 
+                        err = do_set_thread_area(p, -1,
+                                (struct user_desc __user *)childregs->rsi, 0);
                 else                    
 #endif   
                         err = do_arch_prctl(p, ARCH_SET_FS, childregs->r8);