1 /* SPDX-License-Identifier: GPL-2.0-or-later 2 * 3 * Copyright (C) 2022 Oracle. All Rights Reserved. 4 * Author: Allison Henderson <allison.henderson@oracle.com> 5 */ 6 #ifndef __XFS_ATTR_ITEM_H__ 7 #define __XFS_ATTR_ITEM_H__ 8 9 /* kernel only ATTRI/ATTRD definitions */ 10 11 struct xfs_mount; 12 struct kmem_zone; 13 14 struct xfs_attri_log_nameval { 15 struct xfs_log_iovec name; 16 struct xfs_log_iovec value; 17 refcount_t refcount; 18 19 /* name and value follow the end of this struct */ 20 }; 21 22 /* 23 * This is the "attr intention" log item. It is used to log the fact that some 24 * extended attribute operations need to be processed. An operation is 25 * currently either a set or remove. Set or remove operations are described by 26 * the xfs_attr_intent which may be logged to this intent. 27 * 28 * During a normal attr operation, name and value point to the name and value 29 * fields of the caller's xfs_da_args structure. During a recovery, the name 30 * and value buffers are copied from the log, and stored in a trailing buffer 31 * attached to the xfs_attr_intent until they are committed. They are freed 32 * when the xfs_attr_intent itself is freed when the work is done. 33 */ 34 struct xfs_attri_log_item { 35 struct xfs_log_item attri_item; 36 atomic_t attri_refcount; 37 struct xfs_attri_log_nameval *attri_nameval; 38 struct xfs_attri_log_format attri_format; 39 }; 40 41 /* 42 * This is the "attr done" log item. It is used to log the fact that some attrs 43 * earlier mentioned in an attri item have been freed. 44 */ 45 struct xfs_attrd_log_item { 46 struct xfs_log_item attrd_item; 47 struct xfs_attri_log_item *attrd_attrip; 48 struct xfs_attrd_log_format attrd_format; 49 }; 50 51 extern struct kmem_cache *xfs_attri_cache; 52 extern struct kmem_cache *xfs_attrd_cache; 53 54 #endif /* __XFS_ATTR_ITEM_H__ */ 55