From 5f39d397dfbe140a14edecd4e73c34ce23c4f9ee Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 15 Oct 2007 16:14:19 -0400 Subject: Btrfs: Create extent_buffer interface for large blocksizes Signed-off-by: Chris Mason --- fs/btrfs/disk-io.h | 55 +++++++++++------------------------------------------- 1 file changed, 11 insertions(+), 44 deletions(-) (limited to 'fs/btrfs/disk-io.h') diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h index fc6b520c6e0b..70d9413c599f 100644 --- a/fs/btrfs/disk-io.h +++ b/fs/btrfs/disk-io.h @@ -19,68 +19,35 @@ #ifndef __DISKIO__ #define __DISKIO__ -#include - #define BTRFS_SUPER_INFO_OFFSET (16 * 1024) -enum btrfs_bh_state_bits { - BH_Checked = BH_PrivateStart, - BH_Defrag, - BH_DefragDone, -}; -BUFFER_FNS(Checked, checked); -BUFFER_FNS(Defrag, defrag); -BUFFER_FNS(DefragDone, defrag_done); - -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 extent_buffer *read_tree_block(struct btrfs_root *root, u64 blocknr); int readahead_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 *btrfs_find_create_tree_block(struct btrfs_root *root, + u64 blocknr); 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 *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); -int btrfs_csum_data(struct btrfs_root * root, char *data, size_t len, - char *result); +struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root, + u64 blocknr); 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); -u64 bh_blocknr(struct buffer_head *bh); int btrfs_insert_dev_radix(struct btrfs_root *root, struct block_device *bdev, u64 device_id, u64 block_start, u64 num_blocks); -int btrfs_map_bh_to_logical(struct btrfs_root *root, struct buffer_head *bh, - u64 logical); 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 buffer_head *bh); +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); #endif -- cgit v1.2.3