/* SPDX-License-Identifier: GPL-2.0-or-later * * Copyright (C) 2022 Oracle. All Rights Reserved. * Author: Allison Henderson <allison.henderson@oracle.com> */ #ifndef __XFS_ATTR_ITEM_H__ #define __XFS_ATTR_ITEM_H__ /* kernel only ATTRI/ATTRD definitions */ struct xfs_mount; struct kmem_zone; struct xfs_attri_log_nameval { struct xfs_log_iovec name; struct xfs_log_iovec new_name; /* PPTR_REPLACE only */ struct xfs_log_iovec value; struct xfs_log_iovec new_value; /* PPTR_REPLACE only */ refcount_t refcount; /* name and value follow the end of this struct */ }; /* * This is the "attr intention" log item. It is used to log the fact that some * extended attribute operations need to be processed. An operation is * currently either a set or remove. Set or remove operations are described by * the xfs_attr_intent which may be logged to this intent. * * During a normal attr operation, name and value point to the name and value * fields of the caller's xfs_da_args structure. During a recovery, the name * and value buffers are copied from the log, and stored in a trailing buffer * attached to the xfs_attr_intent until they are committed. They are freed * when the xfs_attr_intent itself is freed when the work is done. */ struct xfs_attri_log_item { struct xfs_log_item attri_item; atomic_t attri_refcount; struct xfs_attri_log_nameval *attri_nameval; struct xfs_attri_log_format attri_format; }; /* * This is the "attr done" log item. It is used to log the fact that some attrs * earlier mentioned in an attri item have been freed. */ struct xfs_attrd_log_item { struct xfs_log_item attrd_item; struct xfs_attri_log_item *attrd_attrip; struct xfs_attrd_log_format attrd_format; }; extern struct kmem_cache *xfs_attri_cache; extern struct kmem_cache *xfs_attrd_cache; enum xfs_attr_defer_op { XFS_ATTR_DEFER_SET, XFS_ATTR_DEFER_REMOVE, XFS_ATTR_DEFER_REPLACE, }; void xfs_attr_defer_add(struct xfs_da_args *args, enum xfs_attr_defer_op op); #endif /* __XFS_ATTR_ITEM_H__ */