1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2006-2007 Silicon Graphics, Inc.
 4 * All Rights Reserved.
 5 */
 6#ifndef __XFS_MRU_CACHE_H__
 7#define __XFS_MRU_CACHE_H__
 8
 9struct xfs_mru_cache;
10
11struct xfs_mru_cache_elem {
12	struct list_head list_node;
13	unsigned long	key;
14};
15
16/* Function pointer type for callback to free a client's data pointer. */
17typedef void (*xfs_mru_cache_free_func_t)(void *, struct xfs_mru_cache_elem *);
18
19int xfs_mru_cache_init(void);
20void xfs_mru_cache_uninit(void);
21int xfs_mru_cache_create(struct xfs_mru_cache **mrup, void *data,
22		unsigned int lifetime_ms, unsigned int grp_count,
23		xfs_mru_cache_free_func_t free_func);
24void xfs_mru_cache_destroy(struct xfs_mru_cache *mru);
25int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key,
26		struct xfs_mru_cache_elem *elem);
27struct xfs_mru_cache_elem *
28xfs_mru_cache_remove(struct xfs_mru_cache *mru, unsigned long key);
29void xfs_mru_cache_delete(struct xfs_mru_cache *mru, unsigned long key);
30struct xfs_mru_cache_elem *
31xfs_mru_cache_lookup(struct xfs_mru_cache *mru, unsigned long key);
32void xfs_mru_cache_done(struct xfs_mru_cache *mru);
33
34#endif /* __XFS_MRU_CACHE_H__ */

 1// SPDX-License-Identifier: GPL-2.0
 2/*
 3 * Copyright (c) 2006-2007 Silicon Graphics, Inc.
 4 * All Rights Reserved.
 5 */
 6#ifndef __XFS_MRU_CACHE_H__
 7#define __XFS_MRU_CACHE_H__
 8
 9struct xfs_mru_cache;
10
11struct xfs_mru_cache_elem {
12	struct list_head list_node;
13	unsigned long	key;
14};
15
16/* Function pointer type for callback to free a client's data pointer. */
17typedef void (*xfs_mru_cache_free_func_t)(void *, struct xfs_mru_cache_elem *);
18
19int xfs_mru_cache_init(void);
20void xfs_mru_cache_uninit(void);
21int xfs_mru_cache_create(struct xfs_mru_cache **mrup, void *data,
22		unsigned int lifetime_ms, unsigned int grp_count,
23		xfs_mru_cache_free_func_t free_func);
24void xfs_mru_cache_destroy(struct xfs_mru_cache *mru);
25int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key,
26		struct xfs_mru_cache_elem *elem);
27struct xfs_mru_cache_elem *
28xfs_mru_cache_remove(struct xfs_mru_cache *mru, unsigned long key);
29void xfs_mru_cache_delete(struct xfs_mru_cache *mru, unsigned long key);
30struct xfs_mru_cache_elem *
31xfs_mru_cache_lookup(struct xfs_mru_cache *mru, unsigned long key);
32void xfs_mru_cache_done(struct xfs_mru_cache *mru);
33
34#endif /* __XFS_MRU_CACHE_H__ */