1 files changed, 2 insertions, 13 deletions

diff --git a/arch/tile/kernel/signal.c b/arch/tile/kernel/signal.c
index 657a7ace4ab4..9531845bf661 100644
--- a/arch/tile/kernel/signal.c
+++ b/arch/tile/kernel/signal.c
@@ -37,13 +37,6 @@
 
 #define DEBUG_SIG 0
 
-SYSCALL_DEFINE2(sigaltstack, const stack_t __user *, uss,
-                stack_t __user *, uoss)
-{
-        return do_sigaltstack(uss, uoss, current_pt_regs()->sp);
-}
-
-
 /*
  * Do a signal return; undo the signal stack.
  */
@@ -100,7 +93,7 @@ SYSCALL_DEFINE0(rt_sigreturn)
         if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
                 goto badframe;
 
-        if (do_sigaltstack(&frame->uc.uc_stack, NULL, regs->sp) == -EFAULT)
+        if (restore_altstack(&frame->uc.uc_stack))
                 goto badframe;
 
         return 0;
@@ -191,11 +184,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
         err |= __clear_user(&frame->save_area, sizeof(frame->save_area));
         err |= __put_user(0, &frame->uc.uc_flags);
         err |= __put_user(NULL, &frame->uc.uc_link);
-        err |= __put_user((void __user *)(current->sas_ss_sp),
-                          &frame->uc.uc_stack.ss_sp);
-        err |= __put_user(sas_ss_flags(regs->sp),
-                          &frame->uc.uc_stack.ss_flags);
-        err |= __put_user(current->sas_ss_size, &frame->uc.uc_stack.ss_size);
+        err |= __save_altstack(&frame->uc.uc_stack, regs->sp);
         err |= setup_sigcontext(&frame->uc.uc_mcontext, regs);
         err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
         if (err)