[PATCH 1/2] xfs: dynamic speculative EOF preallocation

[Dave Chinner]

On Tue, Dec 07, 2010 at 05:17:46AM -0500, Christoph Hellwig wrote:
> I need the patch below to make the new code link on 32-bit systems:
> 
> Index: xfs/fs/xfs/xfs_mount.c
> ===================================================================
> --- xfs.orig/fs/xfs/xfs_mount.c	2010-12-07 11:01:50.394021585 +0100
> +++ xfs/fs/xfs/xfs_mount.c	2010-12-07 11:02:46.231256257 +0100
> @@ -1111,7 +1111,10 @@ xfs_set_low_space_thresholds(
>  	int i;
>  
>  	for (i = 0; i < XFS_LOWSP_MAX; i++) {
> -		mp->m_low_space[i] = mp->m_sb.sb_dblocks / 100 * (i + 1);
> +		__uint64_t space = mp->m_sb.sb_dblocks;
> +		do_div(space, 100);
> +
> +		mp->m_low_space[i] = space * (i + 1);
>  	}
>  }

Yes, makes sense. I'll fold that into the latest version of the
patch. Thanks.

Cheers,

Dave.
-- 
Dave Chinner
david at fromorbit.com