From patchwork Sun May 6 17:24:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Allison Henderson X-Patchwork-Id: 10382919 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B57536037F for ; Sun, 6 May 2018 17:27:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A621828B11 for ; Sun, 6 May 2018 17:27:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9B3A128B13; Sun, 6 May 2018 17:27:13 +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=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, UNPARSEABLE_RELAY autolearn=ham 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 3002D28B11 for ; Sun, 6 May 2018 17:27:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751869AbeEFR1M (ORCPT ); Sun, 6 May 2018 13:27:12 -0400 Received: from userp2130.oracle.com ([156.151.31.86]:44008 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751825AbeEFR1H (ORCPT ); Sun, 6 May 2018 13:27:07 -0400 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 w46HR61p128355 for ; Sun, 6 May 2018 17:27:06 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-2017-10-26; bh=FALoqyvzs1iRVLo6CkJsmGufaWyuXE/SL924GTzQ73k=; b=lTFbY/TKcZz0bVEQvQXmpwXqx8upyw3EBwfJj3Rf2I9/pSKnCPe5WJTLyQukZFDy/5VP NvCLEfr4bPvyToeeEEPUPD6xYfuMzO3YGe38cs/4cmBlbz2E7F+daIKVV4KzcKCHLxfd fHMDPU0B4rvKX3jB6zTyR0e8m+S8vJReulXa1ShnyhlGdYYoPKW/VBYBpjakMf+RqoBo R+UCaMBhINpJG3QrToMykaVicYOkSWfLGzpYqe+l5t/Iqn6l2IDbUGPDNfRxzamIl5az vBMcUopsWrQ352vV2hh7I9nT2e5eZN5HlJxgkNMxXPK0abNso1Ar0qs0TIbp5trj9xCZ KA== Received: from userv0021.oracle.com (userv0021.oracle.com [156.151.31.71]) by userp2130.oracle.com with ESMTP id 2hs426a11d-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Sun, 06 May 2018 17:27:06 +0000 Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by userv0021.oracle.com (8.14.4/8.14.4) with ESMTP id w46HR6OA014744 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Sun, 6 May 2018 17:27:06 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 w46HR6pn014481 for ; Sun, 6 May 2018 17:27:06 GMT Received: from localhost.localdomain (/72.210.40.165) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Sun, 06 May 2018 10:27:05 -0700 From: Allison Henderson To: linux-xfs@vger.kernel.org Subject: [PATCH 06/21] xfs: Add xfs_attr_set_deferred and xfs_attr_remove_deferred Date: Sun, 6 May 2018 10:24:39 -0700 Message-Id: <1525627494-12873-7-git-send-email-allison.henderson@oracle.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1525627494-12873-1-git-send-email-allison.henderson@oracle.com> References: <1525627494-12873-1-git-send-email-allison.henderson@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8885 signatures=668698 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=1 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1805060184 Sender: linux-xfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-xfs@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP These routines set up set and start a new deferred attribute operation. These functions are meant to be called by other code needing to initiate a deferred attribute operation. We will use these routines later in the parent pointer patches. Signed-off-by: Allison Henderson --- fs/xfs/libxfs/xfs_attr.c | 69 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/libxfs/xfs_attr.h | 5 ++++ 2 files changed, 74 insertions(+) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 2f295ca..adbcef2 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -468,6 +468,42 @@ xfs_attr_set( return error; } +/* Sets an attribute for an inode as a deferred operation */ +int +xfs_attr_set_deferred( + struct xfs_inode *dp, + struct xfs_defer_ops *dfops, + void *name, + unsigned int namelen, + void *value, + unsigned int valuelen, + int flags) +{ + + struct xfs_attr_item *new; + char *name_value; + + if (!namelen || !valuelen) { + ASSERT(0); + return -EFSCORRUPTED; + } + + new = kmem_alloc(XFS_ATTR_ITEM_SIZEOF(namelen, valuelen), + KM_SLEEP|KM_NOFS); + name_value = ((char *)new) + sizeof(struct xfs_attr_item); + memset(new, 0, XFS_ATTR_ITEM_SIZEOF(namelen, valuelen)); + new->xattri_ip = dp; + new->xattri_op_flags = XFS_ATTR_OP_FLAGS_SET; + new->xattri_name_len = namelen; + new->xattri_value_len = valuelen; + new->xattri_flags = flags; + memcpy(&name_value[0], name, namelen); + memcpy(&name_value[namelen], value, valuelen); + + xfs_defer_add(dfops, XFS_DEFER_OPS_TYPE_ATTR, &new->xattri_list); + + return 0; +} /* * Generic handler routine to remove a name from an attribute list. @@ -560,6 +596,39 @@ xfs_attr_remove( return error; } +/* Removes an attribute for an inode as a deferred operation */ +int +xfs_attr_remove_deferred( + struct xfs_inode *dp, + struct xfs_defer_ops *dfops, + void *name, + unsigned int namelen, + int flags) +{ + + struct xfs_attr_item *new; + char *name_value; + + if (!namelen) { + ASSERT(0); + return -EFSCORRUPTED; + } + + new = kmem_alloc(XFS_ATTR_ITEM_SIZEOF(namelen, 0), KM_SLEEP|KM_NOFS); + name_value = ((char *)new) + sizeof(struct xfs_attr_item); + memset(new, 0, XFS_ATTR_ITEM_SIZEOF(namelen, 0)); + new->xattri_ip = dp; + new->xattri_op_flags = XFS_ATTR_OP_FLAGS_REMOVE; + new->xattri_name_len = namelen; + new->xattri_value_len = 0; + new->xattri_flags = flags; + memcpy(name_value, name, namelen); + + xfs_defer_add(dfops, XFS_DEFER_OPS_TYPE_ATTR, &new->xattri_list); + + return 0; +} + /*======================================================================== * External routines when attribute list is inside the inode *========================================================================*/ diff --git a/fs/xfs/libxfs/xfs_attr.h b/fs/xfs/libxfs/xfs_attr.h index 33b33d3..ec26565 100644 --- a/fs/xfs/libxfs/xfs_attr.h +++ b/fs/xfs/libxfs/xfs_attr.h @@ -183,5 +183,10 @@ int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize, int xfs_attr_args_init(struct xfs_da_args *args, struct xfs_inode *dp, const unsigned char *name, int flags); int xfs_attr_calc_size(struct xfs_da_args *args, int *local); +int xfs_attr_set_deferred(struct xfs_inode *dp, struct xfs_defer_ops *dfops, + void *name, unsigned int name_len, void *value, + unsigned int valuelen, int flags); +int xfs_attr_remove_deferred(struct xfs_inode *dp, struct xfs_defer_ops *dfops, + void *name, unsigned int namelen, int flags); #endif /* __XFS_ATTR_H__ */