Re: [PATCH 07/20] iomap: renumber IOMAP_HOLE to 0

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On Tue, Oct 08, 2019 at 09:15:14AM +0200, Christoph Hellwig wrote:
> Instead of keeping a separate unnamed state for uninitialized iomaps,
> renumber IOMAP_HOLE to zero so that an uninitialized iomap is treated
> as a hole.
> 
> Suggested-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Looks ok,
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>

--D

> ---
>  include/linux/iomap.h | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/include/linux/iomap.h b/include/linux/iomap.h
> index 220f6b17a1a7..24c784e44274 100644
> --- a/include/linux/iomap.h
> +++ b/include/linux/iomap.h
> @@ -23,11 +23,11 @@ struct vm_fault;
>  /*
>   * Types of block ranges for iomap mappings:
>   */
> -#define IOMAP_HOLE	0x01	/* no blocks allocated, need allocation */
> -#define IOMAP_DELALLOC	0x02	/* delayed allocation blocks */
> -#define IOMAP_MAPPED	0x03	/* blocks allocated at @addr */
> -#define IOMAP_UNWRITTEN	0x04	/* blocks allocated at @addr in unwritten state */
> -#define IOMAP_INLINE	0x05	/* data inline in the inode */
> +#define IOMAP_HOLE	0	/* no blocks allocated, need allocation */
> +#define IOMAP_DELALLOC	1	/* delayed allocation blocks */
> +#define IOMAP_MAPPED	2	/* blocks allocated at @addr */
> +#define IOMAP_UNWRITTEN	3	/* blocks allocated at @addr in unwritten state */
> +#define IOMAP_INLINE	4	/* data inline in the inode */
>  
>  /*
>   * Flags reported by the file system from iomap_begin:
> -- 
> 2.20.1
> 



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