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-rw-r--r--cache.h37
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+/*
+ * cache.h
+ *
+ * Written by: Petr Tesarik <ptesarik@suse.cz>
+ *
+ * Copyright (c) 2012 SUSE LINUX Products GmbH, Nuernberg, Germany.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _CACHE_H
+#define _CACHE_H
+
+struct cache_entry {
+ unsigned long long paddr;
+ void *bufptr;
+ unsigned long buflen;
+ struct cache_entry *next, *prev;
+
+ void (*discard)(struct cache_entry *);
+};
+
+int cache_init(void);
+void *cache_search(unsigned long long paddr, unsigned long length);
+struct cache_entry *cache_alloc(unsigned long long paddr);
+void cache_add(struct cache_entry *entry);
+void cache_free(struct cache_entry *entry);
+
+#endif /* _CACHE_H */