Re: [PATCH 045/119] xfs: add rmap btree geometry feature flag

Brian Foster
2016-07-18T13:34:23Z

On Thu, Jun 16, 2016 at 06:22:40PM -0700, Darrick J. Wong wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> So xfs_info and other userspace utilities know the filesystem is
> using this feature.
>
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
> ---

Reviewed-by: Brian Foster <bfoster@redhat.com>

> fs/xfs/libxfs/xfs_fs.h | 1 +
> fs/xfs/xfs_fsops.c | 4 +++-
> 2 files changed, 4 insertions(+), 1 deletion(-)
>
>
> diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
> index f5ec9c5..7945505 100644
> --- a/fs/xfs/libxfs/xfs_fs.h
> +++ b/fs/xfs/libxfs/xfs_fs.h
> @@ -206,6 +206,7 @@ typedef struct xfs_fsop_resblks {
> #define XFS_FSOP_GEOM_FLAGS_FTYPE 0x10000 /* inode directory types */
> #define XFS_FSOP_GEOM_FLAGS_FINOBT 0x20000 /* free inode btree */
> #define XFS_FSOP_GEOM_FLAGS_SPINODES 0x40000 /* sparse inode chunks */
> +#define XFS_FSOP_GEOM_FLAGS_RMAPBT 0x80000 /* Reverse mapping btree */
>
> /*
> * Minimum and maximum sizes need for growth checks.
> diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
> index 3772f6c..5980d5c 100644
> --- a/fs/xfs/xfs_fsops.c
> +++ b/fs/xfs/xfs_fsops.c
> @@ -105,7 +105,9 @@ xfs_fs_geometry(
> (xfs_sb_version_hasfinobt(&mp->m_sb) ?
> XFS_FSOP_GEOM_FLAGS_FINOBT : 0) |
> (xfs_sb_version_hassparseinodes(&mp->m_sb) ?
> - XFS_FSOP_GEOM_FLAGS_SPINODES : 0);
> + XFS_FSOP_GEOM_FLAGS_SPINODES : 0) |
> + (xfs_sb_version_hasrmapbt(&mp->m_sb) ?
> + XFS_FSOP_GEOM_FLAGS_RMAPBT : 0);
> geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
> mp->m_sb.sb_logsectsize : BBSIZE;
> geo->rtsectsize = mp->m_sb.sb_blocksize;
>
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