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- // SPDX-License-Identifier: GPL-2.0
- /*
- * Copyright (c) 2006-2007 Silicon Graphics, Inc.
- * All Rights Reserved.
- */
- #ifndef __XFS_MRU_CACHE_H__
- #define __XFS_MRU_CACHE_H__
- struct xfs_mru_cache;
- struct xfs_mru_cache_elem {
- struct list_head list_node;
- unsigned long key;
- };
- /* Function pointer type for callback to free a client's data pointer. */
- typedef void (*xfs_mru_cache_free_func_t)(void *, struct xfs_mru_cache_elem *);
- int xfs_mru_cache_init(void);
- void xfs_mru_cache_uninit(void);
- int xfs_mru_cache_create(struct xfs_mru_cache **mrup, void *data,
- unsigned int lifetime_ms, unsigned int grp_count,
- xfs_mru_cache_free_func_t free_func);
- void xfs_mru_cache_destroy(struct xfs_mru_cache *mru);
- int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key,
- struct xfs_mru_cache_elem *elem);
- struct xfs_mru_cache_elem *
- xfs_mru_cache_remove(struct xfs_mru_cache *mru, unsigned long key);
- void xfs_mru_cache_delete(struct xfs_mru_cache *mru, unsigned long key);
- struct xfs_mru_cache_elem *
- xfs_mru_cache_lookup(struct xfs_mru_cache *mru, unsigned long key);
- void xfs_mru_cache_done(struct xfs_mru_cache *mru);
- #endif /* __XFS_MRU_CACHE_H__ */
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