On Mon, May 05, 2014 at 08:32:20PM +0800, Jeff Liu wrote:
> From: Jie Liu <jeff.liu@xxxxxxxxxx>
>
> Introduce a common routine xfs_icluster_size_fsb() to calculate
> and return the number of file system blocks per inode cluster.
>
> Signed-off-by: Jie Liu <jeff.liu@xxxxxxxxxx>
> ---
Reviewed-by: Brian Foster <bfoster@xxxxxxxxxx>
> include/xfs_ialloc.h | 10 ++++++++++
> 1 file changed, 10 insertions(+)
>
> diff --git a/include/xfs_ialloc.h b/include/xfs_ialloc.h
> index 0498f20..9dee62f 100644
> --- a/include/xfs_ialloc.h
> +++ b/include/xfs_ialloc.h
> @@ -30,6 +30,16 @@ struct xfs_btree_cur;
> */
> #define XFS_INODE_BIG_CLUSTER_SIZE 8192
>
> +/* Calculate and return the number of filesystem blocks per inode cluster */
> +static inline int
> +xfs_icluster_size_fsb(
> + struct xfs_mount *mp)
> +{
> + if (mp->m_sb.sb_blocksize >= mp->m_inode_cluster_size)
> + return 1;
> + return mp->m_inode_cluster_size >> mp->m_sb.sb_blocklog;
> +}
> +
> /*
> * Make an inode pointer out of the buffer/offset.
> */
> --
> 1.8.3.2
>
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