On 05/30/2016 07:34 AM, Ming Lei wrote:
Hi, Interests[1] have been shown in multipage bvecs, so this patchset try to prepare for the support and do two things: 1) the 1st 4 patches use bvec iterator to implement iterate_bvec(), then we can drop the non-standard way for iterating bvec, which can be thought as a good cleanup for lib/iov_iter.c 2) remove BIO_MAX_SECTORS and makre BIO_MAX_SIZE as obsolete, and now there is only one user for each. Once multipage bvecs is introduced, one bio may hold lots of sectors, and we should always use sort of BIO_MAX_VECS which should be introduced in future and is similiar with current BIO_MAX_PAGES. The only functional change is iterate_bvec():lib/iov_iter.c xfstests(-a auto) over loop aio is run for ext4/xfs to verify the change and no regression found with this patchset.
Added patches 1-7, still waiting for an answer on my reply to #8. -- Jens Axboe -- 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
