From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756286Ab0D3UtW (ORCPT ); Fri, 30 Apr 2010 16:49:22 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38029 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754988Ab0D3UtI (ORCPT ); Fri, 30 Apr 2010 16:49:08 -0400 From: Jeff Moyer To: linux-aio@kvack.org Cc: linux-kernel@vger.kernel.org, mjt@tls.msk.ru Subject: [PATCH 0/2] aio: fix the vectored aio routines Date: Fri, 30 Apr 2010 16:48:58 -0400 Message-Id: <1272660540-6567-1-git-send-email-jmoyer@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, It was reported[1] that 32 bit readv and writev AIO operations were not functioning properly. It turns out that the code to convert the 32bit io vectors to 64 bits was never written. The results of that can be pretty bad, but in my testing, it mostly ended up in generating EFAULT as we walked off the list of I/O vectors provided. This patch set fixes the problem in my environment. Comments, as always, are greatly appreciated. Cheers, Jeff [1] http://lkml.org/lkml/2010/3/8/309 [PATCH 1/2] compat: factor out compat_rw_copy_check_uvector from compat_do_readv_writev [PATCH 2/2] aio: fix the compat vectored operations