[Ocfs2-devel] [PATCH 07/10] ocfs2: Determine an extent tree's max_leaf_clusters in an et_op.
TaoMa
tao.ma at oracle.com
Wed Aug 20 21:13:15 PDT 2008
Joel Becker wrote:
> Provide an optional extent_tree_operation to specify the
> max_leaf_clusters of an ocfs2_extent_tree. If not provided, the value
> is 0 (unlimited).
>
> Signed-off-by: Joel Becker <joel.becker at oracle.com>
> ---
> fs/ocfs2/alloc.c | 18 +++++++++++++++---
> 1 files changed, 15 insertions(+), 3 deletions(-)
>
> diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
> index 0b900f6..7c0721d 100644
> --- a/fs/ocfs2/alloc.c
> +++ b/fs/ocfs2/alloc.c
> @@ -76,6 +76,8 @@ struct ocfs2_extent_tree_operations {
> /* These are internal to ocfs2_extent_tree and don't have
> * accessor functions */
> void (*eo_fill_root_el)(struct ocfs2_extent_tree *et);
> + void (*eo_fill_max_leaf_clusters)(struct inode *inode,
> + struct ocfs2_extent_tree *et);
> };
>
> struct ocfs2_extent_tree {
> @@ -205,6 +207,14 @@ static void ocfs2_xattr_tree_fill_root_el(struct ocfs2_extent_tree *et)
> et->et_root_el = &xb->xb_attrs.xb_root.xt_list;
> }
>
> +static void ocfs2_xattr_tree_fill_max_leaf_clusters(struct inode *inode,
> + struct ocfs2_extent_tree *et)
> +{
> + et->et_max_leaf_clusters =
> + ocfs2_clusters_for_bytes(inode->i_sb,
> + OCFS2_MAX_XATTR_TREE_LEAF_SIZE);
> +}
> +
> static void ocfs2_xattr_tree_set_last_eb_blk(struct ocfs2_extent_tree *et,
> u64 blkno)
> {
> @@ -243,6 +253,7 @@ static struct ocfs2_extent_tree_operations ocfs2_xattr_tree_et_ops = {
> .eo_update_clusters = ocfs2_xattr_tree_update_clusters,
> .eo_sanity_check = ocfs2_xattr_tree_sanity_check,
> .eo_fill_root_el = ocfs2_xattr_tree_fill_root_el,
> + .eo_fill_max_leaf_clusters = ocfs2_xattr_tree_fill_max_leaf_clusters,
> };
>
> static void ocfs2_get_extent_tree(struct ocfs2_extent_tree *et,
> @@ -254,7 +265,6 @@ static void ocfs2_get_extent_tree(struct ocfs2_extent_tree *et,
> et->et_type = et_type;
> get_bh(bh);
> et->et_root_bh = bh;
> - et->et_max_leaf_clusters = 0;
> if (!obj)
> obj = (void *)bh->b_data;
> et->et_object = obj;
> @@ -265,11 +275,13 @@ static void ocfs2_get_extent_tree(struct ocfs2_extent_tree *et,
> et->et_ops = &ocfs2_xattr_et_ops;
> } else if (et_type == OCFS2_XATTR_TREE_EXTENT) {
> et->et_ops = &ocfs2_xattr_tree_et_ops;
> - et->et_max_leaf_clusters = ocfs2_clusters_for_bytes(inode->i_sb,
> - OCFS2_MAX_XATTR_TREE_LEAF_SIZE);
> }
>
> et->et_ops->eo_fill_root_el(et);
> + if (!et->et_ops->eo_fill_max_leaf_clusters)
> + et->et_max_leaf_clusters = 0;
> + else
> + et->et_ops->eo_fill_max_leaf_clusters(inode, et);
> }
>
Like what you have done in patch 1/10, maybe we can add a small wrapper
named ocfs2_et_fill_max_leaf_clusters for this?
Regards,
Tao
More information about the Ocfs2-devel
mailing list