Btrfs: Allow tails larger than one page

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

diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index c2c38bda704d88129e1a3d6d6d4753d7cb36e9cc..190b07bc642b9157fdb49a9019ec3342e825d22a 100644 (file)
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -1,42 +1,61 @@
+/*
+ * Copyright (C) 2007 Oracle.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
 #ifndef __DISKIO__
 #define __DISKIO__
 
-#include <linux/buffer_head.h>
-
 #define BTRFS_SUPER_INFO_OFFSET (16 * 1024)
 
-static inline struct btrfs_node *btrfs_buffer_node(struct buffer_head *bh)
-{
-       return (struct btrfs_node *)bh->b_data;
-}
-
-static inline struct btrfs_leaf *btrfs_buffer_leaf(struct buffer_head *bh)
-{
-       return (struct btrfs_leaf *)bh->b_data;
-}
-
-static inline struct btrfs_header *btrfs_buffer_header(struct buffer_head *bh)
-{
-       return &((struct btrfs_node *)bh->b_data)->header;
-}
-
-struct buffer_head *read_tree_block(struct btrfs_root *root, u64 blocknr);
-struct buffer_head *btrfs_find_create_tree_block(struct btrfs_root *root,
-                                                u64 blocknr);
-int write_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
-                    struct buffer_head *buf);
-int dirty_tree_block(struct btrfs_trans_handle *trans, struct btrfs_root *root,
-                    struct buffer_head *buf);
+struct extent_buffer *read_tree_block(struct btrfs_root *root, u64 bytenr,
+                                     u32 blocksize);
+int readahead_tree_block(struct btrfs_root *root, u64 bytenr, u32 blocksize);
+struct extent_buffer *btrfs_find_create_tree_block(struct btrfs_root *root,
+                                                  u64 bytenr, u32 blocksize);
 int clean_tree_block(struct btrfs_trans_handle *trans,
-                    struct btrfs_root *root, struct buffer_head *buf);
-int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
-                            struct btrfs_root *root);
-struct btrfs_root *open_ctree(struct super_block *sb,
-                             struct buffer_head *sb_buffer,
-                             struct btrfs_super_block *disk_super);
+                    struct btrfs_root *root, struct extent_buffer *buf);
+struct btrfs_root *open_ctree(struct super_block *sb);
 int close_ctree(struct btrfs_root *root);
-void btrfs_block_release(struct btrfs_root *root, struct buffer_head *buf);
 int write_ctree_super(struct btrfs_trans_handle *trans,
                      struct btrfs_root *root);
-struct buffer_head *btrfs_find_tree_block(struct btrfs_root *root, u64 blocknr);
+struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
+                                           u64 bytenr, u32 blocksize);
+struct btrfs_root *btrfs_read_fs_root(struct btrfs_fs_info *fs_info,
+                                     struct btrfs_key *location,
+                                     const char *name, int namelen);
+struct btrfs_root *btrfs_read_fs_root_no_radix(struct btrfs_fs_info *fs_info,
+                                              struct btrfs_key *location);
+int btrfs_insert_dev_radix(struct btrfs_root *root,
+                          struct block_device *bdev,
+                          u64 device_id,
+                          u64 block_start,
+                          u64 num_blocks);
+void btrfs_btree_balance_dirty(struct btrfs_root *root, unsigned long nr);
+int btrfs_free_fs_root(struct btrfs_fs_info *fs_info, struct btrfs_root *root);
+void btrfs_mark_buffer_dirty(struct extent_buffer *buf);
+int btrfs_buffer_uptodate(struct extent_buffer *buf);
+int btrfs_set_buffer_uptodate(struct extent_buffer *buf);
+int wait_on_tree_block_writeback(struct btrfs_root *root,
+                                struct extent_buffer *buf);
+void btrfs_set_buffer_defrag(struct extent_buffer *buf);
+void btrfs_set_buffer_defrag_done(struct extent_buffer *buf);
+int btrfs_buffer_defrag(struct extent_buffer *buf);
+int btrfs_buffer_defrag_done(struct extent_buffer *buf);
+int btrfs_clear_buffer_defrag(struct extent_buffer *buf);
+int btrfs_clear_buffer_defrag_done(struct extent_buffer *buf);
+int btrfs_read_buffer(struct extent_buffer *buf);
 #endif