From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263227AbUDMIkh (ORCPT ); Tue, 13 Apr 2004 04:40:37 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263211AbUDMIjU (ORCPT ); Tue, 13 Apr 2004 04:39:20 -0400 Received: from amsfep12-int.chello.nl ([213.46.243.18]:45664 "EHLO amsfep20-int.chello.nl") by vger.kernel.org with ESMTP id S263273AbUDMIiS (ORCPT ); Tue, 13 Apr 2004 04:38:18 -0400 Date: Tue, 13 Apr 2004 10:38:15 +0200 Message-Id: <200404130838.i3D8cF9b018485@callisto.of.borg> From: Geert Uytterhoeven To: Andrew Morton , Linus Torvalds Cc: Linux Kernel Development , Geert Uytterhoeven Subject: [PATCH 435] M68k TLB fixes Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org M68k TLB fixes from Roman Zippel: - Check current->active_mm for currently active mm - Set correct context to flush the right ATC entry This is especially important for kswapd to correctly flush unmapped entries (it caused random segfaults during large compiles) --- linux-2.6.5/include/asm-m68k/tlbflush.h 2004-04-05 10:41:53.000000000 +0200 +++ linux-m68k-2.6.5/include/asm-m68k/tlbflush.h 2004-04-06 11:03:51.000000000 +0200 @@ -65,20 +65,24 @@ static inline void flush_tlb_mm(struct mm_struct *mm) { - if (mm == current->mm) + if (mm == current->active_mm) __flush_tlb(); } static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr) { - if (vma->vm_mm == current->mm) + if (vma->vm_mm == current->active_mm) { + mm_segment_t old_fs = get_fs(); + set_fs(USER_DS); __flush_tlb_one(addr); + set_fs(old_fs); + } } static inline void flush_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end) { - if (vma->vm_mm == current->mm) + if (vma->vm_mm == current->active_mm) __flush_tlb(); } Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds