Btrfs: Allow tree blocks larger than the page size
Signed-off-by: Chris Mason <chris.mason@oracle.com>
diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 75dc600..4ef8bdd 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -70,7 +70,12 @@
struct list_head list;
struct list_head leak_list;
struct page *first_page;
+ struct page *last_page;
unsigned long alloc_addr;
+ char *map_token;
+ char *kaddr;
+ unsigned long map_start;
+ unsigned long map_len;
};
typedef struct extent_map *(get_extent_t)(struct inode *inode,
@@ -147,11 +152,6 @@
atomic_inc(&eb->refs);
}
-static inline u64 extent_buffer_blocknr(struct extent_buffer *eb)
-{
- return eb->start / 4096;
-}
-
int memcmp_extent_buffer(struct extent_buffer *eb, const void *ptrv,
unsigned long start,
unsigned long len);