On 04/14/2016 05:46 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 & BIO_MAX_SIZE, 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. xfstests(-a auto) have been run over ext4/xfs and no regression found by this patchset.
We've had too many disasters in the block layer the last few series, I'm making the 4.7 round a nice and small one. I don't mind taking prep patches for the multipage bvecs, if they are simple and clean, but that's about the extent of it.
Just a heads up. -- 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
