s390/kernel: lazy restore fpu registers

[linux-2.6-block.git] / arch / s390 / kernel / compat_signal.c

diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 452995137a699bed60ad8bf48d7ccc0c9bbc11a7..0b46fd4aa31e4ae9e152be6f9a12c842808aeae6 100644 (file)
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -161,7 +161,6 @@ static void store_sigregs(void)
 static void load_sigregs(void)
 {
        restore_access_regs(current->thread.acrs);
-       restore_fpu_regs(&current->thread.fpu);
 }
 
 static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
@@ -287,6 +286,7 @@ COMPAT_SYSCALL_DEFINE0(sigreturn)
        if (__copy_from_user(&set.sig, &frame->sc.oldmask, _SIGMASK_COPY_SIZE32))
                goto badframe;
        set_current_blocked(&set);
+       save_fpu_regs(&current->thread.fpu);
        if (restore_sigregs32(regs, &frame->sregs))
                goto badframe;
        if (restore_sigregs_ext32(regs, &frame->sregs_ext))
@@ -309,6 +309,7 @@ COMPAT_SYSCALL_DEFINE0(rt_sigreturn)
        set_current_blocked(&set);
        if (compat_restore_altstack(&frame->uc.uc_stack))
                goto badframe;
+       save_fpu_regs(&current->thread.fpu);
        if (restore_sigregs32(regs, &frame->uc.uc_mcontext))
                goto badframe;
        if (restore_sigregs_ext32(regs, &frame->uc.uc_mcontext_ext))