Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1352908

block & iov_iter: use bvec iterator to implement iterate_bvec()

Show all headers | View raw

Hi Guys,

The 1st two patches move bvec iterator helpers out from bio.h, then
they can be used even if CONFIG_BLOCK is disabled, so not necessary
to use iov iter own approach to do the job.

One motivation is that in the future we may support multipage bvecs,
as interests[1] have been shown in this idea, so looks better to
unify the implementation now.

[1], http://marc.info/?w=2&r=1&s=++[LSF%2FMM+ATTEND]+block%3A+multipage+bvecs&q=t
 

 include/linux/bio.h       | 55 +------------------------------------------
 include/linux/blk_types.h |  4 ++--
 include/linux/bvec_iter.h | 79 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 lib/iov_iter.c            | 31 +++++++++---------------
 4 files changed, 93 insertions(+), 76 deletions(-)


Thanks,
Ming

Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

block & iov_iter: use bvec iterator to implement iterate_bvec() Ming Lei <ming.lei@canonical.com> - 2016-03-08 12:40 +0100
  [PATCH 2/4] block: make 'struct bvec_iter' not depend on CONFIG_BLOCK Ming Lei <ming.lei@canonical.com> - 2016-03-08 12:40 +0100
  [PATCH 4/4] iov_iter: use bvec iterator to implement iterate_bvec() Ming Lei <ming.lei@canonical.com> - 2016-03-08 12:40 +0100
  [PATCH 3/4] block: mark 1st parameter of bvec_iter_advance as const Ming Lei <ming.lei@canonical.com> - 2016-03-08 12:40 +0100
  [PATCH 1/4] block: move bvec iterator into include/linux/bvec_iter.h Ming Lei <ming.lei@canonical.com> - 2016-03-08 12:40 +0100

csiph-web