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-rw-r--r--fs/squashfs/page_actor.h21
1 files changed, 18 insertions, 3 deletions
diff --git a/fs/squashfs/page_actor.h b/fs/squashfs/page_actor.h
index 2e3073ace009..37523c54256f 100644
--- a/fs/squashfs/page_actor.h
+++ b/fs/squashfs/page_actor.h
@@ -45,6 +45,11 @@ static inline void squashfs_finish_page(struct squashfs_page_actor *actor)
{
/* empty */
}
+
+static inline void squashfs_actor_nobuff(struct squashfs_page_actor *actor)
+{
+ /* empty */
+}
#else
struct squashfs_page_actor {
union {
@@ -52,17 +57,23 @@ struct squashfs_page_actor {
struct page **page;
};
void *pageaddr;
+ void *tmp_buffer;
void *(*squashfs_first_page)(struct squashfs_page_actor *);
void *(*squashfs_next_page)(struct squashfs_page_actor *);
void (*squashfs_finish_page)(struct squashfs_page_actor *);
int pages;
int length;
int next_page;
+ int alloc_buffer;
+ int returned_pages;
+ pgoff_t next_index;
};
-extern struct squashfs_page_actor *squashfs_page_actor_init(void **, int, int);
-extern struct squashfs_page_actor *squashfs_page_actor_init_special(struct page
- **, int, int);
+extern struct squashfs_page_actor *squashfs_page_actor_init(void **buffer,
+ int pages, int length);
+extern struct squashfs_page_actor *squashfs_page_actor_init_special(
+ struct squashfs_sb_info *msblk,
+ struct page **page, int pages, int length);
static inline void *squashfs_first_page(struct squashfs_page_actor *actor)
{
return actor->squashfs_first_page(actor);
@@ -75,5 +86,9 @@ static inline void squashfs_finish_page(struct squashfs_page_actor *actor)
{
actor->squashfs_finish_page(actor);
}
+static inline void squashfs_actor_nobuff(struct squashfs_page_actor *actor)
+{
+ actor->alloc_buffer = 0;
+}
#endif
#endif