Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751716AbaB1AS2 (ORCPT ); Thu, 27 Feb 2014 19:18:28 -0500 Received: from mail-pa0-f50.google.com ([209.85.220.50]:51713 "EHLO mail-pa0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751003AbaB1AS0 (ORCPT ); Thu, 27 Feb 2014 19:18:26 -0500 From: Andy Lutomirski To: Stefani Seibold , X86 ML , "H. Peter Anvin" Cc: Greg KH , "linux-kernel@vger.kernel.org" , Thomas Gleixner , Ingo Molnar , Andi Kleen , Andrea Arcangeli , John Stultz , Pavel Emelyanov , Cyrill Gorcunov , andriy.shevchenko@linux.intel.com, Martin.Runge@rohde-schwarz.com, Andreas.Brief@rohde-schwarz.com, Andy Lutomirski Subject: [PATCH v2 0/4] vDSO fixes, on top of tip/x86/vdso Date: Thu, 27 Feb 2014 16:18:11 -0800 Message-Id: X-Mailer: git-send-email 1.8.5.3 In-Reply-To: References: Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I'd still like someone else to confirm that the 32-bit vDSO is working on all common configurations before I'm happy with it, but this should be a considerable improvement. Someone who maintains the clock code should review the changes in: commit 0fc8a237cbe98a06962f5ea37d24fc2369e23c74 Author: Stefani Seibold Date: Wed Feb 19 10:09:10 2014 +0100 x86, vdso: Add 32-bit VDSO time support for the 64-bit kernel very carefully. There's still something extremely questionable about VDSO_PAGES in the 32-bit vDSO code. It appears to be terminally screwed up, and AFAICS it only works at all because none of the 32-bit vDSO images ever exceed 4096 bytes. Note: Patch 4 fixes a bug that's present even in -linus, so it might make sense to send it to Linus more quickly than the rest of this series. Changes from v1: - Adjust CFLAGS instead of using asmlinkage. - Add more fixes. Andy Lutomirski (4): x86: Use the default ABI for the 32-bit vDSO x86: Inline the CLOCK_MONOTONIC vdso code x86: Patch alternatives in the 32-bit vDSO x86: Zero-pad the VVAR page arch/x86/include/asm/vdso.h | 2 ++ arch/x86/kernel/vmlinux.lds.S | 5 +++++ arch/x86/vdso/Makefile | 2 +- arch/x86/vdso/vclock_gettime.c | 2 +- arch/x86/vdso/vdso32-setup.c | 25 +++++++++++++------------ arch/x86/vdso/vma.c | 9 ++++++--- 6 files changed, 28 insertions(+), 17 deletions(-) -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/