From patchwork Wed Nov 28 03:49:50 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allison Henderson X-Patchwork-Id: 10701781 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E0BB713AD for ; Wed, 28 Nov 2018 03:52:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D38892CC8C for ; Wed, 28 Nov 2018 03:52:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C7CD42CD49; Wed, 28 Nov 2018 03:52:51 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8BB3B2CCD3 for ; Wed, 28 Nov 2018 03:52:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726894AbeK1Owp (ORCPT ); Wed, 28 Nov 2018 09:52:45 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:50990 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727351AbeK1Owo (ORCPT ); Wed, 28 Nov 2018 09:52:44 -0500 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.22/8.16.0.22) with SMTP id wAS3mqb2033449; Wed, 28 Nov 2018 03:52:36 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : cc : subject : date : message-id : in-reply-to : references; s=corp-2018-07-02; bh=ZCXvsAPo6OYYs9OnVI2LKGBoGcqQFZjhpapjNkfKV0s=; b=ok9UvSOjuDlKRm4TVLyev5+xwxyKSoJ1u2OZlSx0ygRppRlETpCn5pOUC0U4xzCJtp1y UCMTK3NzpFTwsXxVduVTlcsjv/Y7L0tcuCGs8+JDMirtIkPwJotEkEkgoO9XCUlBbiXO YX7CwPwea/tt0SHkv1GUOtb6sIR5XgKrYYXbRyiPC4h/OcHfiAkgGf/1nnYFHxnOi3Gr UmBIJpshqGT6loQ1JHbFz9mWcgaBBEE+dNNRxrC+xf/gNxp2l9Smk/vZUb+zNVSq/2rN PG7/PkLteraLe5PT3QuawAdwlQhcYunULljeJzrJVMAAq+67wPe6ZODHxIsKV+Sp6h0G QQ== Received: from userv0022.oracle.com (userv0022.oracle.com [156.151.31.74]) by userp2130.oracle.com with ESMTP id 2nxx2u7tku-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 28 Nov 2018 03:52:36 +0000 Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0022.oracle.com (8.14.4/8.14.4) with ESMTP id wAS3qaqK009600 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 28 Nov 2018 03:52:36 GMT Received: from abhmp0014.oracle.com (abhmp0014.oracle.com [141.146.116.20]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id wAS3qa0Z028909; Wed, 28 Nov 2018 03:52:36 GMT Received: from localhost.localdomain (/70.176.225.12) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Tue, 27 Nov 2018 19:52:35 -0800 From: Allison Henderson To: linux-block@vger.kernel.org, linux-xfs@vger.kernel.org, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: martin.petersen@oracle.com, shirley.ma@oracle.com, bob.liu@oracle.com, allison.henderson@oracle.com Subject: [PATCH v1 6/7] xfs: Rewrite retried read Date: Tue, 27 Nov 2018 20:49:50 -0700 Message-Id: <1543376991-5764-7-git-send-email-allison.henderson@oracle.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1543376991-5764-1-git-send-email-allison.henderson@oracle.com> References: <1543376991-5764-1-git-send-email-allison.henderson@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=9090 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=880 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1811280033 Sender: linux-block-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP If we had to try more than one mirror to get a successful read, then write that buffer back to correct the bad mirro Signed-off-by: Allison Henderson --- fs/xfs/xfs_buf.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index f102d01..81f6491 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -847,6 +847,14 @@ xfs_buf_read_map( } retry_done: + + /* + * if we had to try more than one mirror to sucessfully read + * the buffer, write the buffer back + */ + if (!bp->b_error && i > 0) + xfs_bwrite(bp); + return bp; }