From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from userp1040.oracle.com ([156.151.31.81]:16740 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752677AbdKQSYG (ORCPT ); Fri, 17 Nov 2017 13:24:06 -0500 Received: from aserv0022.oracle.com (aserv0022.oracle.com [141.146.126.234]) by userp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id vAHIO4tx023332 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 17 Nov 2017 18:24:05 GMT Received: from userv0121.oracle.com (userv0121.oracle.com [156.151.31.72]) by aserv0022.oracle.com (8.14.4/8.14.4) with ESMTP id vAHIO4E9029351 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK) for ; Fri, 17 Nov 2017 18:24:04 GMT Received: from abhmp0003.oracle.com (abhmp0003.oracle.com [141.146.116.9]) by userv0121.oracle.com (8.14.4/8.13.8) with ESMTP id vAHIO4Pp009049 for ; Fri, 17 Nov 2017 18:24:04 GMT From: Allison Henderson Subject: [PATCH v3 03/17] Add xfs_attr_set_defered and xfs_attr_remove_defered Date: Fri, 17 Nov 2017 11:21:31 -0700 Message-Id: <1510942905-12897-4-git-send-email-allison.henderson@oracle.com> In-Reply-To: <1510942905-12897-1-git-send-email-allison.henderson@oracle.com> References: <1510942905-12897-1-git-send-email-allison.henderson@oracle.com> Sender: linux-xfs-owner@vger.kernel.org List-ID: List-Id: xfs To: linux-xfs@vger.kernel.org Cc: Allison Henderson 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 | 62 ++++++++++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_attr.h | 5 ++++ 2 files changed, 67 insertions(+) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index 716df0f..68dc7e04 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -469,6 +469,40 @@ 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; + + ASSERT(namelen != 0); + ASSERT(valuelen != 0); + + new = kmem_alloc(XFS_ATTR_ITEM_SIZEOF(namelen, valuelen), + KM_SLEEP|KM_NOFS); + 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(&new->xattri_name_value[0], name, namelen); + memcpy(&new->xattri_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. * Transitions attribute list from Btree to shortform as necessary. @@ -545,6 +579,34 @@ 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; + + ASSERT(namelen != 0); + + new = kmem_alloc(XFS_ATTR_ITEM_SIZEOF(namelen, 0), KM_SLEEP|KM_NOFS); + 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(new->xattri_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/xfs_attr.h b/fs/xfs/xfs_attr.h index 3ef3c77..8d4762a 100644 --- a/fs/xfs/xfs_attr.h +++ b/fs/xfs/xfs_attr.h @@ -175,5 +175,10 @@ 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__ */ -- 2.7.4