From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752088AbcEJU4u (ORCPT ); Tue, 10 May 2016 16:56:50 -0400 Received: from mx1.redhat.com ([209.132.183.28]:53036 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751262AbcEJU4t (ORCPT ); Tue, 10 May 2016 16:56:49 -0400 From: Mateusz Guzik To: Andy Lutomirski Cc: linux-kernel@vger.kernel.org, Thomas Gleixner , "H. Peter Anvin" Subject: [PATCH] x86/arch_prctl/64: restore accidentally removed put_cpu in ARCH_SET_GS Date: Tue, 10 May 2016 22:56:43 +0200 Message-Id: <1462913803-29634-1-git-send-email-mguzik@redhat.com> X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.25]); Tue, 10 May 2016 20:56:48 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This fixes 731e33e39a5b95ad770 "Remove FSBASE/GSBASE < 4G optimization" Signed-off-by: Mateusz Guzik --- arch/x86/kernel/process_64.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index 4285f6a..6b16c36 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -541,6 +541,7 @@ long do_arch_prctl(struct task_struct *task, int code, unsigned long addr) load_gs_index(0); ret = wrmsrl_safe(MSR_KERNEL_GS_BASE, addr); } + put_cpu(); break; case ARCH_SET_FS: /* Not strictly needed for fs, but do it for symmetry -- 1.8.3.1