[PATCH v2] XFS: Let the broken fiemap work in query mode.

[Christoph Hellwig]

On Wed, Apr 28, 2010 at 11:00:25AM +0800, Tao Ma wrote:
> -	bm.bmv_count = fieinfo->fi_extents_max + 1;
> +	bm.bmv_count = !fieinfo->fi_extents_max ? MAXEXTNUM :
> +					fieinfo->fi_extents_max + 1;
> +	bm.bmv_count = MIN(bm.bmv_count,
> +			   (__s32)(PAGE_SIZE * 16 / sizeof(struct getbmapx)));

I would use min_t here instead of the case, but otherwise the patch
looks good to me,


Reviewed-by: Christoph Hellwig <hch at lst.de>