[PATCH 37/37] xfs: make XBF_MAPPED the default behaviour

[Christoph Hellwig]

> @@ -399,8 +399,9 @@ _xfs_buf_map_pages(
>  	if (bp->b_page_count == 1) {
>  		/* A single page buffer is always mappable */
>  		bp->b_addr = page_address(bp->b_pages[0]) + bp->b_offset;
> -		bp->b_flags |= XBF_MAPPED;
> -	} else if (flags & XBF_MAPPED) {
> +	} else if (flags & XBF_UNMAPPED) {
> +		bp->b_addr = NULL;

Do we need this explicit assigned?  The buffer should always have
b_addr == NULL at this point.

Otherwise looks good,

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