From patchwork Thu Jun 25 23:28:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allison Henderson X-Patchwork-Id: 11626245 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 88C3B1731 for ; Thu, 25 Jun 2020 23:29:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70806208C7 for ; Thu, 25 Jun 2020 23:29:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="N0mtvvEd" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726465AbgFYX3r (ORCPT ); Thu, 25 Jun 2020 19:29:47 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:53226 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731585AbgFYX3O (ORCPT ); Thu, 25 Jun 2020 19:29:14 -0400 Received: from pps.filterd (userp2130.oracle.com [127.0.0.1]) by userp2130.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05PNQl7v037993 for ; Thu, 25 Jun 2020 23:29:01 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=from : to : subject : date : message-id : in-reply-to : references; s=corp-2020-01-29; bh=+FsncW5xUjcZjVLSg2vVqDUX/0SDrcBW57g4f1z5hJU=; b=N0mtvvEdCyWpxXpnupAZ9seFziDy+SrRaSlkhVcklPmr61ImeNvJwagvkwNbV0ewVkS9 /ZvlrIFSk3AFDjAFpD/QsGxEimVej8oerAIU+C/4mcVTdsTkIX8tEX9hWT9ZFcXMM4Vg dWts+cOckVzIA56An6OkkqX2hmoquw9f+LRTttVSWZW495k62302jKqCh6KFB73gpLvy ALtYF1IYQbrX7TN64WdkyB5uubTjB3+o5L+gevYwQo1W3fkiZR72ljy1hvSrNXrQtmyV 52uSBv288v3RedOh+Lj9XCu9k6CKkG8adDBeQpYMTY0PZZSnD9qyEJomYmy43ZyUDAf6 vA== Received: from userp3020.oracle.com (userp3020.oracle.com [156.151.31.79]) by userp2130.oracle.com with ESMTP id 31uut5u9t0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Thu, 25 Jun 2020 23:29:01 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.42/8.16.0.42) with SMTP id 05PNSIh7110996 for ; Thu, 25 Jun 2020 23:29:01 GMT Received: from userv0122.oracle.com (userv0122.oracle.com [156.151.31.75]) by userp3020.oracle.com with ESMTP id 31uur9r3dm-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Thu, 25 Jun 2020 23:29:00 +0000 Received: from abhmp0010.oracle.com (abhmp0010.oracle.com [141.146.116.16]) by userv0122.oracle.com (8.14.4/8.14.4) with ESMTP id 05PNT04R007676 for ; Thu, 25 Jun 2020 23:29:00 GMT Received: from localhost.localdomain (/67.1.142.158) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Thu, 25 Jun 2020 23:29:00 +0000 From: Allison Collins To: linux-xfs@vger.kernel.org Subject: [PATCH v10 06/26] xfsprogs: Split apart xfs_attr_leaf_addname Date: Thu, 25 Jun 2020 16:28:28 -0700 Message-Id: <20200625232848.14465-7-allison.henderson@oracle.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200625232848.14465-1-allison.henderson@oracle.com> References: <20200625232848.14465-1-allison.henderson@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9663 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 bulkscore=0 spamscore=0 malwarescore=0 suspectscore=1 mlxlogscore=999 adultscore=0 phishscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006250136 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9663 signatures=668680 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 malwarescore=0 clxscore=1015 lowpriorityscore=0 bulkscore=0 adultscore=0 spamscore=0 suspectscore=1 phishscore=0 impostorscore=0 cotscore=-2147483648 priorityscore=1501 mlxscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2004280000 definitions=main-2006250136 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org Split out new helper function xfs_attr_leaf_try_add from xfs_attr_leaf_addname. Because new delayed attribute routines cannot roll transactions, we split off the parts of xfs_attr_leaf_addname that we can use, and move the commit into the calling function. Signed-off-by: Allison Collins Reviewed-by: Brian Foster Reviewed-by: Chandan Rajendra --- libxfs/xfs_attr.c | 95 +++++++++++++++++++++++++++++++++++-------------------- 1 file changed, 61 insertions(+), 34 deletions(-) diff --git a/libxfs/xfs_attr.c b/libxfs/xfs_attr.c index 313aa5f..d12cf0c 100644 --- a/libxfs/xfs_attr.c +++ b/libxfs/xfs_attr.c @@ -256,10 +256,31 @@ xfs_attr_set_args( } } - if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) + if (xfs_bmap_one_block(dp, XFS_ATTR_FORK)) { error = xfs_attr_leaf_addname(args); - else - error = xfs_attr_node_addname(args); + if (error != -ENOSPC) + return error; + + /* + * Finish any deferred work items and roll the transaction once + * more. The goal here is to call node_addname with the inode + * and transaction in the same state (inode locked and joined, + * transaction clean) no matter how we got to this step. + */ + error = xfs_defer_finish(&args->trans); + if (error) + return error; + + /* + * Commit the current trans (including the inode) and + * start a new one. + */ + error = xfs_trans_roll_inode(&args->trans, dp); + if (error) + return error; + } + + error = xfs_attr_node_addname(args); return error; } @@ -507,20 +528,21 @@ xfs_attr_shortform_addname(xfs_da_args_t *args) *========================================================================*/ /* - * Add a name to the leaf attribute list structure + * Tries to add an attribute to an inode in leaf form * - * This leaf block cannot have a "remote" value, we only call this routine - * if bmap_one_block() says there is only one block (ie: no remote blks). + * This function is meant to execute as part of a delayed operation and leaves + * the transaction handling to the caller. On success the attribute is added + * and the inode and transaction are left dirty. If there is not enough space, + * the attr data is converted to node format and -ENOSPC is returned. Caller is + * responsible for handling the dirty inode and transaction or adding the attr + * in node format. */ STATIC int -xfs_attr_leaf_addname( - struct xfs_da_args *args) +xfs_attr_leaf_try_add( + struct xfs_da_args *args, + struct xfs_buf *bp) { - struct xfs_buf *bp; - int retval, error, forkoff; - struct xfs_inode *dp = args->dp; - - trace_xfs_attr_leaf_addname(args); + int retval, error; /* * Look up the given attribute in the leaf block. Figure out if @@ -562,31 +584,39 @@ xfs_attr_leaf_addname( retval = xfs_attr3_leaf_add(bp, args); if (retval == -ENOSPC) { /* - * Promote the attribute list to the Btree format, then - * Commit that transaction so that the node_addname() call - * can manage its own transactions. + * Promote the attribute list to the Btree format. Unless an + * error occurs, retain the -ENOSPC retval */ error = xfs_attr3_leaf_to_node(args); if (error) return error; - error = xfs_defer_finish(&args->trans); - if (error) - return error; + } + return retval; +out_brelse: + xfs_trans_brelse(args->trans, bp); + return retval; +} - /* - * Commit the current trans (including the inode) and start - * a new one. - */ - error = xfs_trans_roll_inode(&args->trans, dp); - if (error) - return error; - /* - * Fob the whole rest of the problem off on the Btree code. - */ - error = xfs_attr_node_addname(args); +/* + * Add a name to the leaf attribute list structure + * + * This leaf block cannot have a "remote" value, we only call this routine + * if bmap_one_block() says there is only one block (ie: no remote blks). + */ +STATIC int +xfs_attr_leaf_addname( + struct xfs_da_args *args) +{ + int error, forkoff; + struct xfs_buf *bp = NULL; + struct xfs_inode *dp = args->dp; + + trace_xfs_attr_leaf_addname(args); + + error = xfs_attr_leaf_try_add(args, bp); + if (error) return error; - } /* * Commit the transaction that added the attr name so that @@ -681,9 +711,6 @@ xfs_attr_leaf_addname( error = xfs_attr3_leaf_clearflag(args); } return error; -out_brelse: - xfs_trans_brelse(args->trans, bp); - return retval; } /*