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46 lines
1.7 KiB
46 lines
1.7 KiB
/* |
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* Copyright (c) 2006-2007 Silicon Graphics, Inc. |
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* All Rights Reserved. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it would be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#ifndef __XFS_MRU_CACHE_H__ |
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#define __XFS_MRU_CACHE_H__ |
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struct xfs_mru_cache; |
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struct xfs_mru_cache_elem { |
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struct list_head list_node; |
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unsigned long key; |
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}; |
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/* Function pointer type for callback to free a client's data pointer. */ |
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typedef void (*xfs_mru_cache_free_func_t)(struct xfs_mru_cache_elem *elem); |
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int xfs_mru_cache_init(void); |
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void xfs_mru_cache_uninit(void); |
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int xfs_mru_cache_create(struct xfs_mru_cache **mrup, unsigned int lifetime_ms, |
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unsigned int grp_count, |
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xfs_mru_cache_free_func_t free_func); |
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void xfs_mru_cache_destroy(struct xfs_mru_cache *mru); |
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int xfs_mru_cache_insert(struct xfs_mru_cache *mru, unsigned long key, |
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struct xfs_mru_cache_elem *elem); |
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struct xfs_mru_cache_elem * |
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xfs_mru_cache_remove(struct xfs_mru_cache *mru, unsigned long key); |
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void xfs_mru_cache_delete(struct xfs_mru_cache *mru, unsigned long key); |
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struct xfs_mru_cache_elem * |
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xfs_mru_cache_lookup(struct xfs_mru_cache *mru, unsigned long key); |
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void xfs_mru_cache_done(struct xfs_mru_cache *mru); |
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#endif /* __XFS_MRU_CACHE_H__ */
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