Re: [PATCH V4 08/16] xfs: Introduce XFS_FSOP_GEOM_FLAGS_NREXT64

["Darrick J. Wong" <djwong@kernel.org>]

On Tue, Dec 14, 2021 at 02:15:11PM +0530, Chandan Babu R wrote:
> XFS_FSOP_GEOM_FLAGS_NREXT64 indicates that the current filesystem instance
> supports 64-bit per-inode extent counters.
> 
> Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
> ---
>  fs/xfs/libxfs/xfs_fs.h | 1 +
>  fs/xfs/libxfs/xfs_sb.c | 2 ++
>  2 files changed, 3 insertions(+)
> 
> diff --git a/fs/xfs/libxfs/xfs_fs.h b/fs/xfs/libxfs/xfs_fs.h
> index c43877c8a279..42bc39501d81 100644
> --- a/fs/xfs/libxfs/xfs_fs.h
> +++ b/fs/xfs/libxfs/xfs_fs.h
> @@ -251,6 +251,7 @@ typedef struct xfs_fsop_resblks {
>  #define XFS_FSOP_GEOM_FLAGS_REFLINK	(1 << 20) /* files can share blocks */
>  #define XFS_FSOP_GEOM_FLAGS_BIGTIME	(1 << 21) /* 64-bit nsec timestamps */
>  #define XFS_FSOP_GEOM_FLAGS_INOBTCNT	(1 << 22) /* inobt btree counter */
> +#define XFS_FSOP_GEOM_FLAGS_NREXT64	(1 << 23) /* 64-bit extent counter */
>  
>  /*
>   * Minimum and maximum sizes need for growth checks.
> diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
> index bd632389ae92..0c1add39177f 100644
> --- a/fs/xfs/libxfs/xfs_sb.c
> +++ b/fs/xfs/libxfs/xfs_sb.c
> @@ -1138,6 +1138,8 @@ xfs_fs_geometry(
>  	} else {
>  		geo->logsectsize = BBSIZE;
>  	}
> +	if (xfs_has_nrext64(mp))
> +		geo->flags |= XFS_FSOP_GEOM_FLAGS_NREXT64;
>  	geo->rtsectsize = sbp->sb_blocksize;
>  	geo->dirblocksize = xfs_dir2_dirblock_bytes(sbp);
>  
> -- 
> 2.30.2
>