Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756589AbaDXVzr (ORCPT ); Thu, 24 Apr 2014 17:55:47 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:39866 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757117AbaDXVxW (ORCPT ); Thu, 24 Apr 2014 17:53:22 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Dave Kleikamp , Hugh Dickins , "David S. Miller" , sparclinux@vger.kernel.org Subject: [PATCH 3.4 18/27] Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines." Date: Thu, 24 Apr 2014 14:55:52 -0700 Message-Id: <20140424215552.516725450@linuxfoundation.org> X-Mailer: git-send-email 1.9.0 In-Reply-To: <20140424215551.942390050@linuxfoundation.org> References: <20140424215551.942390050@linuxfoundation.org> User-Agent: quilt/0.61-1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dave Kleikamp [ Upstream commit 16932237f2978a2265662f8de4af743b1f55a209 ] This reverts commit 145e1c0023585e0e8f6df22316308ec61c5066b2. This commit broke the behavior of __copy_from_user_inatomic when it is only partially successful. Instead of returning the number of bytes not copied, it now returns 1. This translates to the wrong value being returned by iov_iter_copy_from_user_atomic. xfstests generic/246 and LTP writev01 both fail on btrfs and nfs because of this. Signed-off-by: Dave Kleikamp Cc: Hugh Dickins Cc: David S. Miller Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- arch/sparc/include/asm/uaccess_64.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/arch/sparc/include/asm/uaccess_64.h +++ b/arch/sparc/include/asm/uaccess_64.h @@ -266,8 +266,8 @@ extern long __strnlen_user(const char __ #define strlen_user __strlen_user #define strnlen_user __strnlen_user -#define __copy_to_user_inatomic ___copy_to_user -#define __copy_from_user_inatomic ___copy_from_user +#define __copy_to_user_inatomic __copy_to_user +#define __copy_from_user_inatomic __copy_from_user #endif /* __ASSEMBLY__ */ -- 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/