Btrfs: Extent based page cache code. This uses an rbtree of extents and tests

[linux-2.6-block.git] / fs / btrfs / ctree.h

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index c7f5161271d39e050c8d78deeece1f5b960fddb8..947f061ed1188d83c784888de019b3f48952199c 100644 (file)
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1176,7 +1176,14 @@ int btrfs_commit_write(struct file *file, struct page *page,
                       unsigned from, unsigned to);
 int btrfs_get_block(struct inode *inode, sector_t iblock,
                    struct buffer_head *result, int create);
+struct extent_map *btrfs_get_extent(struct inode *inode, struct page *page,
+                                   size_t page_offset, u64 start, u64 end,
+                                   int create);
+int btrfs_update_inode(struct btrfs_trans_handle *trans,
+                             struct btrfs_root *root,
+                             struct inode *inode);
 /* file.c */
+int btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end);
 extern struct file_operations btrfs_file_operations;
 int btrfs_drop_extents(struct btrfs_trans_handle *trans,
                       struct btrfs_root *root, struct inode *inode,