On Mon, Oct 31, 2016 at 11:31 PM, Christoph Hellwig <hch@xxxxxxxxxxxxx> wrote: > Btw, the lib/iov_iter.c code that iterates over bvec currently > expects single-page segments. Is the loop code fine with that? lib/iov_iter.c has switched to bvec iterator already in the mp-bvec preparing patchset, so every thing will be fine after multipage bvec is enabled. Another multipage bvec benefit for lib/iov_iter.c(dio) is that we can return whole pages in one segment, instead of one page each time, such as iov_iter_get_pages(), but that can be a follow-up optimization. > Even if it is I think we'd be much better off if it becomes multipage > segment aware. This patch is for auditing possible effect with multipage bvec, so looks we should expose as much as possible direct access to bvec table. Thanks, Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
