[PATCH 0/2] optimise bvec/bio iteration

[Pavel Begunkov <asml.silence@gmail.com>]

This adds simpler versions of bvec_iter_advance() and bio_advance_iter()
(i.e. *_single()), that are faster but work with the restriction that
@bytes shouldn't be more than available in the current bvec segment.

That covers most of bvec/bio iteration/foreach, that are massively
inlined, and thus also nicely shrinks binary.

Others non core-block users might be updated on case by case basis
(if applicable) after the change is merged.

Pavel Begunkov (2):
  block: optimise for_each_bvec() advance
  bio: optimise bvec iteration

 block/bio.c          |  4 ++--
 include/linux/bio.h  | 17 +++++++++++++++--
 include/linux/bvec.h | 20 +++++++++++++++-----
 3 files changed, 32 insertions(+), 9 deletions(-)

-- 
2.24.0