[PATCH V2] fix readahead calculations in xfs_dir2_leaf_getdents()

[Christoph Hellwig]

On Fri, Sep 25, 2009 at 02:42:26PM -0500, Eric Sandeen wrote:
> V2: use min() as suggested by Jeff, it's tidier.

I disagree with that, with the cast it looks pretty horrible.
At least use min_t to avoid the case, but what's wrong with:

> +		/* bufsize may have just been a guess; don't go negative */
> +		bufsize = min((bufsize - length), (size_t)0);

		bufsize = bufsize - length > 0 ? bufsize - length : 0;

Anyway, takes this as a


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

for any variant.