Re: [PATCH v11 06/16] xfs: ignore HW which cannot atomic write a single block

I think this subject line here is left from an earlier version and
doesn't quite seem to summarize what this patch is doing now?

+extern int xfs_configure_buftarg(struct xfs_buftarg *, unsigned int);

Please drop the extern and spell out the parameter name while you're at
it.

Otherwise looks good:

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