Re: [PATCH 17/46] xfs: move the dir2 free header size to struct xfs_da_geometry

Darrick J. Wong
2019-11-08T00:34:51Z

On Thu, Nov 07, 2019 at 07:23:41PM +0100, Christoph Hellwig wrote:
> Move the free header size towards our structure for dir/attr geometry
> parameters.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>

Nice and short,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
> fs/xfs/libxfs/xfs_da_btree.h | 1 +
> fs/xfs/libxfs/xfs_da_format.c | 3 ---
> fs/xfs/libxfs/xfs_dir2.c | 2 ++
> fs/xfs/libxfs/xfs_dir2.h | 1 -
> fs/xfs/libxfs/xfs_dir2_node.c | 2 +-
> 5 files changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/fs/xfs/libxfs/xfs_da_btree.h b/fs/xfs/libxfs/xfs_da_btree.h
> index c6ff5329e92b..e8f0b7ac051c 100644
> --- a/fs/xfs/libxfs/xfs_da_btree.h
> +++ b/fs/xfs/libxfs/xfs_da_btree.h
> @@ -29,6 +29,7 @@ struct xfs_da_geometry {
> unsigned int leaf_hdr_size; /* dir2 leaf header size */
> unsigned int leaf_max_ents; /* # of entries in dir2 leaf */
> xfs_dablk_t leafblk; /* blockno of leaf data v2 */
> + unsigned int free_hdr_size; /* dir2 free header size */
> xfs_dablk_t freeblk; /* blockno of free data v2 */
> };
>
> diff --git a/fs/xfs/libxfs/xfs_da_format.c b/fs/xfs/libxfs/xfs_da_format.c
> index 7263b6d6a135..1fc8982c830f 100644
> --- a/fs/xfs/libxfs/xfs_da_format.c
> +++ b/fs/xfs/libxfs/xfs_da_format.c
> @@ -486,7 +486,6 @@ static const struct xfs_dir_ops xfs_dir2_ops = {
> .data_entry_p = xfs_dir2_data_entry_p,
> .data_unused_p = xfs_dir2_data_unused_p,
>
> - .free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
> .free_max_bests = xfs_dir2_free_max_bests,
> .db_to_fdb = xfs_dir2_db_to_fdb,
> .db_to_fdindex = xfs_dir2_db_to_fdindex,
> @@ -522,7 +521,6 @@ static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
> .data_entry_p = xfs_dir2_data_entry_p,
> .data_unused_p = xfs_dir2_data_unused_p,
>
> - .free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
> .free_max_bests = xfs_dir2_free_max_bests,
> .db_to_fdb = xfs_dir2_db_to_fdb,
> .db_to_fdindex = xfs_dir2_db_to_fdindex,
> @@ -558,7 +556,6 @@ static const struct xfs_dir_ops xfs_dir3_ops = {
> .data_entry_p = xfs_dir3_data_entry_p,
> .data_unused_p = xfs_dir3_data_unused_p,
>
> - .free_hdr_size = sizeof(struct xfs_dir3_free_hdr),
> .free_max_bests = xfs_dir3_free_max_bests,
> .db_to_fdb = xfs_dir3_db_to_fdb,
> .db_to_fdindex = xfs_dir3_db_to_fdindex,
> diff --git a/fs/xfs/libxfs/xfs_dir2.c b/fs/xfs/libxfs/xfs_dir2.c
> index 8093afb389a1..eee75ec9707f 100644
> --- a/fs/xfs/libxfs/xfs_dir2.c
> +++ b/fs/xfs/libxfs/xfs_dir2.c
> @@ -125,9 +125,11 @@ xfs_da_mount(
> if (xfs_sb_version_hascrc(&mp->m_sb)) {
> dageo->node_hdr_size = sizeof(struct xfs_da3_node_hdr);
> dageo->leaf_hdr_size = sizeof(struct xfs_dir3_leaf_hdr);
> + dageo->free_hdr_size = sizeof(struct xfs_dir3_free_hdr);
> } else {
> dageo->node_hdr_size = sizeof(struct xfs_da_node_hdr);
> dageo->leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr);
> + dageo->free_hdr_size = sizeof(struct xfs_dir2_free_hdr);
> }
> dageo->leaf_max_ents = (dageo->blksize - dageo->leaf_hdr_size) /
> sizeof(struct xfs_dir2_leaf_entry);
> diff --git a/fs/xfs/libxfs/xfs_dir2.h b/fs/xfs/libxfs/xfs_dir2.h
> index 402f00326b64..d87cd71e3cf1 100644
> --- a/fs/xfs/libxfs/xfs_dir2.h
> +++ b/fs/xfs/libxfs/xfs_dir2.h
> @@ -72,7 +72,6 @@ struct xfs_dir_ops {
> struct xfs_dir2_data_unused *
> (*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
>
> - int free_hdr_size;
> int (*free_max_bests)(struct xfs_da_geometry *geo);
> xfs_dir2_db_t (*db_to_fdb)(struct xfs_da_geometry *geo,
> xfs_dir2_db_t db);
> diff --git a/fs/xfs/libxfs/xfs_dir2_node.c b/fs/xfs/libxfs/xfs_dir2_node.c
> index e9b4667faeac..c9a52e4e515d 100644
> --- a/fs/xfs/libxfs/xfs_dir2_node.c
> +++ b/fs/xfs/libxfs/xfs_dir2_node.c
> @@ -372,7 +372,7 @@ xfs_dir2_free_log_header(
> free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
> #endif
> xfs_trans_log_buf(args->trans, bp, 0,
> - args->dp->d_ops->free_hdr_size - 1);
> + args->geo->free_hdr_size - 1);
> }
>
> /*
> --
> 2.20.1
>