[people/ms/linux.git] / fs / xfs / xfs_mru_cache.h

// 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__ */
Commit	Line	Data
0b61f8a4	1	// SPDX-License-Identifier: GPL-2.0
2a82b8be DC	2	/*
	3	* Copyright (c) 2006-2007 Silicon Graphics, Inc.
	4	* All Rights Reserved.
2a82b8be DC	5	*/
	6	#ifndef __XFS_MRU_CACHE_H__
	7	#define __XFS_MRU_CACHE_H__
	8
22328d71	9	struct xfs_mru_cache;
2a82b8be	10
22328d71 CH	11	struct xfs_mru_cache_elem {
	12	struct list_head list_node;
	13	unsigned long key;
	14	};
2a82b8be	15
22328d71	16	/* Function pointer type for callback to free a client's data pointer. */
7fcd3efa	17	typedef void (xfs_mru_cache_free_func_t)(void , struct xfs_mru_cache_elem *);
2a82b8be DC	18
	19	int xfs_mru_cache_init(void);
	20	void xfs_mru_cache_uninit(void);
7fcd3efa CH	21	int 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);
2a82b8be DC	24	void xfs_mru_cache_destroy(struct xfs_mru_cache *mru);
2a82b8be DC	25	int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key,
22328d71 CH	26	struct xfs_mru_cache_elem *elem);
	27	struct xfs_mru_cache_elem *
	28	xfs_mru_cache_remove(struct xfs_mru_cache *mru, unsigned long key);
2a82b8be	29	void xfs_mru_cache_delete(struct xfs_mru_cache *mru, unsigned long key);
22328d71 CH	30	struct xfs_mru_cache_elem *
22328d71 CH	31	xfs_mru_cache_lookup(struct xfs_mru_cache *mru, unsigned long key);
2a82b8be DC	32	void xfs_mru_cache_done(struct xfs_mru_cache *mru);
	33
	34	#endif /* __XFS_MRU_CACHE_H__ */