btrfs-progs: drop redundant check of blocksize in read_tree_block

The tree blocks are supposed to be always of nodesize. Before the
parameter has been dropped, it was unlikely but possible to pass a
misaligned value.

Signed-off-by: David Sterba <dsterba@suse.com>

diff --git a/disk-io.c b/disk-io.c
index 1ea2ac9..6bb1b93 100644 (file)
--- a/disk-io.c
+++ b/disk-io.c
@@ -307,7 +307,6 @@ struct extent_buffer* read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
        u64 best_transid = 0;
        u32 sectorsize = fs_info->sectorsize;
        u32 nodesize = fs_info->nodesize;
-       u32 blocksize = fs_info->nodesize;
        int mirror_num = 0;
        int good_mirror = 0;
        int num_copies;
@@ -324,13 +323,8 @@ struct extent_buffer* read_tree_block(struct btrfs_fs_info *fs_info, u64 bytenr,
                      bytenr, sectorsize);
                return ERR_PTR(-EIO);
        }
-       if (blocksize < nodesize || !IS_ALIGNED(blocksize, nodesize)) {
-               error("tree block size %u is not aligned to nodesize %u",
-                     blocksize, nodesize);
-               return ERR_PTR(-EIO);
-       }
 
-       eb = btrfs_find_create_tree_block(fs_info, bytenr, blocksize);
+       eb = btrfs_find_create_tree_block(fs_info, bytenr, nodesize);
        if (!eb)
                return ERR_PTR(-ENOMEM);