2 * include/linux/pagevec.h
4 * In many places it is efficient to batch an operation up against multiple
5 * pages. A pagevec is a multipage container which is used for that.
8 #ifndef _LINUX_PAGEVEC_H
9 #define _LINUX_PAGEVEC_H
11 /* 14 pointers + two long's align the pagevec structure to a power of two */
12 #define PAGEVEC_SIZE 14
20 struct page
*pages
[PAGEVEC_SIZE
];
23 void __pagevec_release(struct pagevec
*pvec
);
24 void __pagevec_free(struct pagevec
*pvec
);
25 void ____pagevec_lru_add(struct pagevec
*pvec
, enum lru_list lru
);
26 void pagevec_strip(struct pagevec
*pvec
);
27 void pagevec_swap_free(struct pagevec
*pvec
);
28 unsigned pagevec_lookup(struct pagevec
*pvec
, struct address_space
*mapping
,
29 pgoff_t start
, unsigned nr_pages
);
30 unsigned pagevec_lookup_tag(struct pagevec
*pvec
,
31 struct address_space
*mapping
, pgoff_t
*index
, int tag
,
34 static inline void pagevec_init(struct pagevec
*pvec
, int cold
)
40 static inline void pagevec_reinit(struct pagevec
*pvec
)
45 static inline unsigned pagevec_count(struct pagevec
*pvec
)
50 static inline unsigned pagevec_space(struct pagevec
*pvec
)
52 return PAGEVEC_SIZE
- pvec
->nr
;
56 * Add a page to a pagevec. Returns the number of slots still available.
58 static inline unsigned pagevec_add(struct pagevec
*pvec
, struct page
*page
)
60 pvec
->pages
[pvec
->nr
++] = page
;
61 return pagevec_space(pvec
);
65 static inline void pagevec_release(struct pagevec
*pvec
)
67 if (pagevec_count(pvec
))
68 __pagevec_release(pvec
);
71 static inline void pagevec_free(struct pagevec
*pvec
)
73 if (pagevec_count(pvec
))
77 static inline void __pagevec_lru_add_anon(struct pagevec
*pvec
)
79 ____pagevec_lru_add(pvec
, LRU_INACTIVE_ANON
);
82 static inline void __pagevec_lru_add_active_anon(struct pagevec
*pvec
)
84 ____pagevec_lru_add(pvec
, LRU_ACTIVE_ANON
);
87 static inline void __pagevec_lru_add_file(struct pagevec
*pvec
)
89 ____pagevec_lru_add(pvec
, LRU_INACTIVE_FILE
);
92 static inline void __pagevec_lru_add_active_file(struct pagevec
*pvec
)
94 ____pagevec_lru_add(pvec
, LRU_ACTIVE_FILE
);
97 static inline void pagevec_lru_add_file(struct pagevec
*pvec
)
99 if (pagevec_count(pvec
))
100 __pagevec_lru_add_file(pvec
);
103 static inline void pagevec_lru_add_anon(struct pagevec
*pvec
)
105 if (pagevec_count(pvec
))
106 __pagevec_lru_add_anon(pvec
);
109 #endif /* _LINUX_PAGEVEC_H */
This page took 0.03932 seconds and 5 git commands to generate.