The result of the calculation is different, which doesn't look right.
On Tue, 26 Jan 2016 16:13:17 +0900, Byongho Lee wrote:
> Simplify expression in btrfs_csum_bytes_to_leaves().
>
> Signed-off-by: Byongho Lee <bhlee.kernel@xxxxxxxxx>
> ---
> fs/btrfs/ctree.h | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
>
> diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
> index a9496644f47d..3ab8026280a2 100644
> --- a/fs/btrfs/ctree.h
> +++ b/fs/btrfs/ctree.h
> @@ -3448,8 +3448,7 @@ u64 btrfs_csum_bytes_to_leaves(struct btrfs_root *root, u64 csum_bytes);
> static inline u64 btrfs_calc_trans_metadata_size(struct btrfs_root *root,
> unsigned num_items)
> {
> - return (root->nodesize + root->nodesize * (BTRFS_MAX_LEVEL - 1)) *
> - 2 * num_items;
> + return root->nodesize * BTRFS_MAX_LEVEL * 2 * num_items;
> }
>
> /*
>
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