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path: root/drivers/staging/zcache/tmem.h
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Diffstat (limited to 'drivers/staging/zcache/tmem.h')
-rw-r--r--drivers/staging/zcache/tmem.h23
1 files changed, 17 insertions, 6 deletions
diff --git a/drivers/staging/zcache/tmem.h b/drivers/staging/zcache/tmem.h
index 2e07e217d51f..ed147c4b110d 100644
--- a/drivers/staging/zcache/tmem.h
+++ b/drivers/staging/zcache/tmem.h
@@ -147,6 +147,7 @@ struct tmem_obj {
unsigned int objnode_tree_height;
unsigned long objnode_count;
long pampd_count;
+ void *extra; /* for private use by pampd implementation */
DECL_SENTINEL
};
@@ -166,10 +167,18 @@ struct tmem_objnode {
/* pampd abstract datatype methods provided by the PAM implementation */
struct tmem_pamops {
- void *(*create)(struct tmem_pool *, struct tmem_oid *, uint32_t,
- struct page *);
- int (*get_data)(struct page *, void *, struct tmem_pool *);
- void (*free)(void *, struct tmem_pool *);
+ void *(*create)(char *, size_t, bool, int,
+ struct tmem_pool *, struct tmem_oid *, uint32_t);
+ int (*get_data)(char *, size_t *, bool, void *, struct tmem_pool *,
+ struct tmem_oid *, uint32_t);
+ int (*get_data_and_free)(char *, size_t *, bool, void *,
+ struct tmem_pool *, struct tmem_oid *,
+ uint32_t);
+ void (*free)(void *, struct tmem_pool *, struct tmem_oid *, uint32_t);
+ void (*free_obj)(struct tmem_pool *, struct tmem_obj *);
+ bool (*is_remote)(void *);
+ void (*new_obj)(struct tmem_obj *);
+ int (*replace_in_obj)(void *, struct tmem_obj *);
};
extern void tmem_register_pamops(struct tmem_pamops *m);
@@ -184,9 +193,11 @@ extern void tmem_register_hostops(struct tmem_hostops *m);
/* core tmem accessor functions */
extern int tmem_put(struct tmem_pool *, struct tmem_oid *, uint32_t index,
- struct page *page);
+ char *, size_t, bool, bool);
extern int tmem_get(struct tmem_pool *, struct tmem_oid *, uint32_t index,
- struct page *page);
+ char *, size_t *, bool, int);
+extern int tmem_replace(struct tmem_pool *, struct tmem_oid *, uint32_t index,
+ void *);
extern int tmem_flush_page(struct tmem_pool *, struct tmem_oid *,
uint32_t index);
extern int tmem_flush_object(struct tmem_pool *, struct tmem_oid *);