Btrfs: Handle data block end_io through the async work queue

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

diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 1c0af7c56c2114255258113fe36c1f55a1594762..4fac0ccbf8f8d8bf046bb62e5e54307058dd26ba 100644 (file)
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -1,30 +1,76 @@
+/*
+ * 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 "list.h"
-
-struct tree_buffer {
-       u64 blocknr;
-       int count;
-       union {
-               struct node node;
-               struct leaf leaf;
-       };
-       struct list_head dirty;
-       struct list_head cache;
-};
-
-struct tree_buffer *read_tree_block(struct ctree_root *root, u64 blocknr);
-struct tree_buffer *find_tree_block(struct ctree_root *root, u64 blocknr);
-int write_tree_block(struct ctree_root *root, struct tree_buffer *buf);
-int dirty_tree_block(struct ctree_root *root, struct tree_buffer *buf);
-int clean_tree_block(struct ctree_root *root, struct tree_buffer *buf);
-int commit_transaction(struct ctree_root *root, struct ctree_super_block *s);
-struct ctree_root *open_ctree(char *filename, struct ctree_super_block *s);
-int close_ctree(struct ctree_root *root, struct ctree_super_block *s);
-void tree_block_release(struct ctree_root *root, struct tree_buffer *buf);
-int write_ctree_super(struct ctree_root *root, struct ctree_super_block *s);
-int mkfs(int fd);
 
-#define CTREE_SUPER_INFO_OFFSET(bs) (16 * (bs))
+#define BTRFS_SUPER_INFO_OFFSET (16 * 1024)
+struct btrfs_device;
+struct btrfs_fs_devices;
 
+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 extent_buffer *buf);
+struct btrfs_root *open_ctree(struct super_block *sb,
+                             struct btrfs_fs_devices *fs_devices);
+int close_ctree(struct btrfs_root *root);
+int write_ctree_super(struct btrfs_trans_handle *trans,
+                     struct btrfs_root *root);
+struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
+                                           u64 bytenr, u32 blocksize);
+struct btrfs_root *btrfs_lookup_fs_root(struct btrfs_fs_info *fs_info,
+                                       u64 root_objectid);
+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);
+struct btrfs_root *btrfs_read_fs_root_no_name(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);
+u32 btrfs_csum_data(struct btrfs_root *root, char *data, u32 seed, size_t len);
+void btrfs_csum_final(u32 crc, char *result);
+void btrfs_throttle(struct btrfs_root *root);
+int btrfs_open_device(struct btrfs_device *dev);
+int btrfs_verify_block_csum(struct btrfs_root *root,
+                           struct extent_buffer *buf);
+int btrfs_bio_wq_end_io(struct btrfs_fs_info *info, struct bio *bio,
+                       int metadata);
 #endif