From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4DB1FC67839 for ; Fri, 14 Dec 2018 12:09:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 15EE6214D9 for ; Fri, 14 Dec 2018 12:09:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544789369; bh=/bzVTxoPPTpyckv0lQA1d7DvwcKYwpb504TtGC34/TE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=W/ktXCbHQel+9W1zWjrD2TWb6JcmDP+4EEWDMS/t3SlUpGbsvz75rUcD5VDObHqjt O7v1gi5yLBaMgDO+LwXRLueUUPRU798i10XnxSryvRSm7HMeoIfKfQaMFCetXGCKNS vmvZnBHg9UmNotxe+gPSXJxJJo25F5OGFF0enJDY= DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 15EE6214D9 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linuxfoundation.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731457AbeLNMJ2 (ORCPT ); Fri, 14 Dec 2018 07:09:28 -0500 Received: from mail.kernel.org ([198.145.29.99]:55128 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731447AbeLNMJZ (ORCPT ); Fri, 14 Dec 2018 07:09:25 -0500 Received: from localhost (5356596B.cm-6-7b.dynamic.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id F01E52147D; Fri, 14 Dec 2018 12:09:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1544789364; bh=/bzVTxoPPTpyckv0lQA1d7DvwcKYwpb504TtGC34/TE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=z/hXtyRmO1hneoEabKyJdsWyh1s3Fp2EF/9C/m1XgLQfsdYXIaP8SlxRp4xARXkCg qf/sXVv02DjQ5V16TyyOoH+s6JNBPbuwgqB9GdJzv1+IVT+WbD1JA/d5/nW4PrTNRx 7oPlJH4JRD5NC/MBNi1OTG8gl+rnlgTJgqeFkVbE= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Artemy Kovalyov , Moni Shoua , Leon Romanovsky , Jason Gunthorpe , Sasha Levin Subject: [PATCH 4.14 54/89] IB/mlx5: Fix page fault handling for MW Date: Fri, 14 Dec 2018 13:00:07 +0100 Message-Id: <20181214115732.340971260@linuxfoundation.org> X-Mailer: git-send-email 2.20.0 In-Reply-To: <20181214115729.658859279@linuxfoundation.org> References: <20181214115729.658859279@linuxfoundation.org> User-Agent: quilt/0.65 X-stable: review X-Patchwork-Hint: ignore MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 4.14-stable review patch. If anyone has any objections, please let me know. ------------------ [ Upstream commit 75b7b86bdb0df37e08e44b6c1f99010967f81944 ] Memory windows are implemented with an indirect MKey, when a page fault event comes for a MW Mkey we need to find the MR at the end of the list of the indirect MKeys by iterating on all items from the first to the last. The offset calculated during this process has to be zeroed after the first iteration or the next iteration will start from a wrong address, resulting incorrect ODP faulting behavior. Fixes: db570d7deafb ("IB/mlx5: Add ODP support to MW") Signed-off-by: Artemy Kovalyov Signed-off-by: Moni Shoua Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/mlx5/odp.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c index 3d701c7a4c91..1ed94b6c0b0a 100644 --- a/drivers/infiniband/hw/mlx5/odp.c +++ b/drivers/infiniband/hw/mlx5/odp.c @@ -723,6 +723,7 @@ static int pagefault_single_data_segment(struct mlx5_ib_dev *dev, head = frame; bcnt -= frame->bcnt; + offset = 0; } break; -- 2.19.1