From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1031488AbXDZUAv (ORCPT ); Thu, 26 Apr 2007 16:00:51 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1031480AbXDZUAc (ORCPT ); Thu, 26 Apr 2007 16:00:32 -0400 Received: from [198.99.130.12] ([198.99.130.12]:49651 "EHLO saraswathi.solana.com" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1031483AbXDZUAa (ORCPT ); Thu, 26 Apr 2007 16:00:30 -0400 Date: Thu, 26 Apr 2007 15:56:24 -0400 From: Jeff Dike To: Andrew Morton Cc: LKML , uml-devel Subject: [PATCH 3/5] UML - Only flush areas covered by VMA Message-ID: <20070426195624.GA9578@c2.user-mode-linux.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.2i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org When doing a full address space flush, only look at areas covered by a VMA. Signed-off-by: Jeff Dike -- arch/um/kernel/skas/tlb.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) Index: linux-2.6.21-mm/arch/um/kernel/skas/tlb.c =================================================================== --- linux-2.6.21-mm.orig/arch/um/kernel/skas/tlb.c 2007-04-17 12:20:05.000000000 -0400 +++ linux-2.6.21-mm/arch/um/kernel/skas/tlb.c 2007-04-17 12:55:38.000000000 -0400 @@ -89,8 +89,13 @@ void flush_tlb_mm_skas(struct mm_struct void force_flush_all_skas(void) { - unsigned long end = proc_mm ? task_size : CONFIG_STUB_START; - fix_range(current->mm, 0, end, 1); + struct mm_struct *mm = current->mm; + struct vm_area_struct *vma = mm->mmap; + + while(vma != NULL) { + fix_range(mm, vma->vm_start, vma->vm_end, 1); + vma = vma->vm_next; + } } void flush_tlb_page_skas(struct vm_area_struct *vma, unsigned long address)