Lines Matching refs:actor
22 static void *cache_first_page(struct squashfs_page_actor *actor)
24 actor->next_page = 1;
25 return actor->buffer[0];
28 static void *cache_next_page(struct squashfs_page_actor *actor)
30 if (actor->next_page == actor->pages)
33 return actor->buffer[actor->next_page++];
36 static void cache_finish_page(struct squashfs_page_actor *actor)
44 struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL);
46 if (actor == NULL)
49 actor->length = length ? : pages * PAGE_SIZE;
50 actor->buffer = buffer;
51 actor->pages = pages;
52 actor->next_page = 0;
53 actor->squashfs_first_page = cache_first_page;
54 actor->squashfs_next_page = cache_next_page;
55 actor->squashfs_finish_page = cache_finish_page;
56 return actor;
60 static void *direct_first_page(struct squashfs_page_actor *actor)
62 actor->next_page = 1;
63 return actor->pageaddr = kmap_atomic(actor->page[0]);
66 static void *direct_next_page(struct squashfs_page_actor *actor)
68 if (actor->pageaddr)
69 kunmap_atomic(actor->pageaddr);
71 return actor->pageaddr = actor->next_page == actor->pages ? NULL :
72 kmap_atomic(actor->page[actor->next_page++]);
75 static void direct_finish_page(struct squashfs_page_actor *actor)
77 if (actor->pageaddr)
78 kunmap_atomic(actor->pageaddr);
84 struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL);
86 if (actor == NULL)
89 actor->length = length ? : pages * PAGE_SIZE;
90 actor->page = page;
91 actor->pages = pages;
92 actor->next_page = 0;
93 actor->pageaddr = NULL;
94 actor->squashfs_first_page = direct_first_page;
95 actor->squashfs_next_page = direct_next_page;
96 actor->squashfs_finish_page = direct_finish_page;
97 return actor;