From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760211AbXLMEsm (ORCPT ); Wed, 12 Dec 2007 23:48:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753958AbXLMErD (ORCPT ); Wed, 12 Dec 2007 23:47:03 -0500 Received: from mx1.redhat.com ([66.187.233.31]:40488 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1759533AbXLMErA (ORCPT ); Wed, 12 Dec 2007 23:47:00 -0500 From: Glauber de Oliveira Costa To: linux-kernel@vger.kernel.org Cc: akpm@linux-foundation.org, glommer@gmail.com, tglx@linutronix.de, mingo@elte.hu, ehabkost@redhat.com, jeremy@goop.org, avi@qumranet.com, anthony@codemonkey.ws, virtualization@lists.linux-foundation.org, rusty@rustcorp.com.au, ak@suse.de, chrisw@sous-sol.org, rostedt@goodmis.org, hpa@zytor.com, zach@vmware.com, roland@redhat.com, Glauber de Oliveira Costa Subject: [PATCH 08/19] modify write_ldt function Date: Thu, 13 Dec 2007 00:01:41 -0200 Message-Id: <11975113532186-git-send-email-gcosta@redhat.com> X-Mailer: git-send-email 1.4.4.2 In-Reply-To: <11975113484194-git-send-email-gcosta@redhat.com> References: <1196957800568-git-send-email-gcosta@redhat.com> <11975113122984-git-send-email-gcosta@redhat.com> <11975113194101-git-send-email-gcosta@redhat.com> <11975113243875-git-send-email-gcosta@redhat.com> <11975113291722-git-send-email-gcosta@redhat.com> <1197511334416-git-send-email-gcosta@redhat.com> <1197511338810-git-send-email-gcosta@redhat.com> <1197511343355-git-send-email-gcosta@redhat.com> <11975113484194-git-send-email-gcosta@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch modifies the write_ldt() function to make use of the new struct desc_struct instead of entry_1 and entry_2 entries Signed-off-by: Glauber de Oliveira Costa --- arch/x86/kernel/ldt.c | 15 +++++++-------- 1 files changed, 7 insertions(+), 8 deletions(-) diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index a8cdca3..7eb0c8a 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -186,7 +186,7 @@ static int read_default_ldt(void __user *ptr, unsigned long bytecount) static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode) { struct mm_struct *mm = current->mm; - __u32 entry_1, entry_2; + struct desc_struct ldt; int error; struct user_desc ldt_info; @@ -218,21 +218,20 @@ static int write_ldt(void __user *ptr, unsigned long bytecount, int oldmode) /* Allow LDTs to be cleared by the user. */ if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { if (oldmode || LDT_empty(&ldt_info)) { - entry_1 = 0; - entry_2 = 0; + memset(&ldt, 0, sizeof(ldt)); goto install; } } - entry_1 = LDT_entry_a(&ldt_info); - entry_2 = LDT_entry_b(&ldt_info); + ldt.a = LDT_entry_a(&ldt_info); + ldt.b = LDT_entry_b(&ldt_info); if (oldmode) - entry_2 &= ~(1 << 20); + ldt.avl = 0; /* Install the new entry ... */ install: - write_ldt_entry(mm->context.ldt, ldt_info.entry_number, entry_1, - entry_2); + write_ldt_entry(mm->context.ldt, ldt_info.entry_number, + ldt.a, ldt.b); error = 0; out_unlock: -- 1.5.0.6