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/* 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__ */
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