34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
/*
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* zbud.h
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*
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* Copyright (c) 2010-2012, Dan Magenheimer, Oracle Corp.
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*
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*/
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#ifndef _ZBUD_H_
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#define _ZBUD_H_
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#include "tmem.h"
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struct zbudref;
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extern unsigned int zbud_max_buddy_size(void);
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extern struct zbudref *zbud_match_prep(struct tmem_handle *th, bool eph,
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void *cdata, unsigned size);
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extern struct zbudref *zbud_create_prep(struct tmem_handle *th, bool eph,
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void *cdata, unsigned size,
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struct page *newpage);
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extern void zbud_create_finish(struct zbudref *, bool);
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extern int zbud_decompress(struct page *, struct zbudref *, bool,
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void (*func)(char *, unsigned int, char *));
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extern int zbud_copy_from_zbud(char *, struct zbudref *, size_t *, bool);
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extern int zbud_copy_to_zbud(struct zbudref *, char *, bool);
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extern struct page *zbud_free_and_delist(struct zbudref *, bool eph,
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unsigned int *, unsigned int *);
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extern struct page *zbud_evict_pageframe_lru(unsigned int *, unsigned int *);
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extern unsigned int zbud_make_zombie_lru(struct tmem_handle *, unsigned char **,
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unsigned int *, bool);
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extern void zbud_init(void);
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#endif /* _ZBUD_H_ */
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