btrfs-progs: Refactor read_tree_block to get rid of btrfs_root

The only reasom read_tree_block() needs a btrfs_root parameter is to get
its node/sector size.

And long ago, I have already introduced a compactible interface,
read_tree_block_fs_info() to pass btrfs_fs_info instead of btrfs_root.

Since we have cleaned up all root->sector/node/stripesize users, we
should be OK to refactor read_tree_block() function.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>

1 files changed, 1 insertions, 8 deletions

diff --git a/disk-io.h b/disk-io.h
index b4d02275..b097785a 100644
--- a/disk-io.h
+++ b/disk-io.h
@@ -115,16 +115,9 @@ static inline u64 btrfs_sb_offset(int mirror)
 struct btrfs_device;
 
 int read_whole_eb(struct btrfs_fs_info *info, struct extent_buffer *eb, int mirror);
-struct extent_buffer* read_tree_block_fs_info(
+struct extent_buffer* read_tree_block(
 		struct btrfs_fs_info *fs_info, u64 bytenr, u32 blocksize,
 		u64 parent_transid);
-static inline struct extent_buffer* read_tree_block(
-		struct btrfs_root *root, u64 bytenr, u32 blocksize,
-		u64 parent_transid)
-{
-	return read_tree_block_fs_info(root->fs_info, bytenr, blocksize,
-			parent_transid);
-}
 
 int read_extent_data(struct btrfs_root *root, char *data, u64 logical,
 		     u64 *len, int mirror);